Thomas Fire Set to Become Largest in CA History

UPDATE 01/03/18 @ 4:49 p.m. – The fire is now 92% contained at 281,893 acres.

Thomas Fire Summary

The Thomas Fire began in Ventura County just north of Santa Paula around 630pm on Monday December 4th. Under Red Flag and Santa Ana Conditions the fire quickly made a push along Hwy 150 to the south and parallel to Hwy126 to the west threatening Santa Paula and Ventura the first night. The fire continued its push west, crossing Hwy 33 and reaching the ocean at Hwy 101 shortly after. Over the course of the next week the fire slowly boxed in Ojai, eventually surrounding it, and pushed its way further west towards the Santa Barbara County line. By this time, the majority of the 1,330 structures impacted already had been. A few days later, the fire used a new round of overnight wind gusts to make a big run on the morning of Sunday Dec 9th, establishing itself above Carpinteria and Montecito. The following Saturday another round of morning winds forced the fire down into the fringe of Montecito, forcing a wall of engines into a several hour battle to push stall its progress. Luckily, by this time over 8,000 firefighters were assigned to the fire, and up to the task of suppression the big morning run. Thanks to their efforts, of the reported 1,300 homes threatened on Dec 16th, only 15 or so were impacted.

thomas progression

Thomas Fire’s progression from Dec 4th (green) through Dec 22nd (red)

Since that push, the fire’s progress has stalled and containment has increased to 65%. Still over the last 17 days, the fire is only 500 acres shy of topping the Cedar Fire for largest in California history. A burn operation is expected to add the acres needed with a few thousand more before all is said and done. Luckily, the firefighters necessary to see the fire out have been halved since the peak last week, but the suppression costs could eclipse last summer’s costly Soberanes fire in well short of the time. The full containment of the historic fire is not expected until after 2018 has begun.

Thomas Fire Major Developments:

  • Yesterday’s wind event produced 50 mph gusts, but fire activity remained minimal.
  • The firing operation was stalled yesterday due to high humidity and some snowfall. It was able to continue in the afternoon, and further firing is planned today for the Rose Valley area.
  • The fire area effectively endured two straight weeks of high to extreme fire weather conditions. Over that period, RH dropped as low as 3-5% and wind speeds were recorded over 60mph.
  • The fire is 500+ acres shy of passing 2003’s Cedar Fire for largest (in terms of acreage burned) in recorded California history.
  • Total fire suppression costs have ballooned to $170 million in just 17 days. It took last year’s Soberanes Fire twelve weeks to cost its total of $236 million.
top ten acres burned

Thomas Fire is 2nd all time in California’s history for acreage burned, but not for long.

Thomas Fire Facts:

  • Location: Fillmore all the way to Santa Barbara, both Santa Barbara and Ventura Counties
  • Size: 272,800 acres (as of 1/3/18 – 281,893)
  • Containment: 65% (as of 1/3/18 – 92%)
  • Fire Behavior: Light fire behavior with interior burning on the northern portions of the fire
  • 1,063 structures have been destroyed and 267 more have been damaged.
  • 18,000 Structures remain threatened.
  • All Mandatory Evacuations have been lifted.
top four ca fires

California’s four largest fires in history (update 01/03/18 : Thomas is now number 1)

Sources:

NIFC.GOV

CalFire Incident Page

Inciweb

Wikipedia – List of California Wildfires

Santa Ana Conditions This Week for Southern California

Red Flag Warning Possible through Saturday

The National Weather Service has issued a Red Flag Warning for Southern California beginning in the early AM hours on Monday through (at least) Friday 1200 PDT. The areas will experience a significant Santa Ana conditions with the strongest winds expected Monday night and Thursday night into Friday. Offshore winds will exacerbate the problem by drying the air and reducing humidity to the single digits. This will likely be the strongest and longest Santa Ana event we have seen in the 2017 season.

Around this time two years ago we discussed what the thresholds are for a Red Flag Warning in Southern California. In this case, the National Weather Service sees the region’s relative humidity ≤15%, with sustained winds ≥ 25 mph and/or frequent gusts ≥ 35 mph (duration of 6 hours or more). The early event projections have even stated this could extend into next weekend. Specifically, wildfire danger will be most critical in the mountains and valleys of Los Angeles and Ventura counties. The combination of Santa Ana winds, low humidity, warm temperatures, and dry fuels will increase the risk for the rapid spread of any new fire starts. In response for this week, extra strike teams, and brush engines have been strategically staged in case of a big wildfire ignition.

RFW stats

This week’s expected Red Flag Warning statistics

Areas Impacted by Santa Ana Conditions:

Ventura County Mountains, Orange County, Los Padres National Forest, Los Angeles County Mountains, Angeles National Forest, Santa Clarita Valley, Cleveland National Forest, and San Diego County.

Click for official Santa Ana Conditions information: Red Flag Warning

santa ana conditions Dec 4

This week’s Red Flag Warning covers Southern CA from Santa Barbara to the border

 

The Big Burn by Timothy Egan

Book Review: “The Big Burn: Teddy Roosevelt and the Fire that Saved America”

In The Big Burn, author Timothy Egan takes the reader through the beginning years of environmentalist and activist John Muir’s growing friendship with then Governor Teddy Roosevelt. The book builds by highlighting their growing, shared desire to preserve the frontier and forestlands of the West. During Roosevelt’s presidency, he leaned heavily on forester and politician Gifford Pinchot to manage and develop the nationally protected forestry lands. Pinchot, in turn, formed the US Forest Service, as we know it today. Egan provides in-depth historical accounts of the politics involved in the establishment of the protected areas and the fight against unregulated land clearing by logging companies.

 

President Teddy Roosevelt & Naturalist John Muir in 1903, Yosemite, CA.

President Teddy Roosevelt & Naturalist John Muir in 1903, Yosemite, CA.

As the story leads in to 1910, Egan sets the stage by depicting a newly established forestry service still developing its forestry management plan. Many areas had no trained or allocated firefighting groups. With little-to-no fire crew system in place, Egan tells how forest rangers would have to staff their crews with any able-bodied men in town when the need arose, oftentimes from the nearby saloon. The whole situation becomes harrowing when one day in late August, a wildfire began burning out of control in the Coeur d’Alene National Forest. In response, a ranger named Ed Pulaski, was sent with a 45 man crew to work a part of the fire and ended up forced to find shelter in a nearby mine. Pulaski knew the area, was familiar with fire behavior, and was determined to save his men, even giving up his horse to an older fire fighter so the man could keep up with the crew. Pulaski kept his men sheltered in the mining tunnel overnight until the fire passed, keeping some of the panicked men inside the tunnel by force at gunpoint. The next day, he famously led them out of the forest into the nearby town to the hospital. Included in Egan’s relating of the Big Burn, as it came to be called, are many first-hand accounts and photos that pull the reader even closer into the events that occurred in the Coeur d’Alene area. The August 1910 fire across portions of Idaho, Montana, and Washington burned approximately 3 million acres of logging and mining land – nearly the size of Connecticut.

Image of mining tunnel where Pulaski and his crew stayed overnight - now called the Pulaski Tunnel

Mining tunnel where Pulaski and his crew stayed overnight – now called the Pulaski Tunnel

This book is recommended for readers interested in the historical account of the Big Burn and the inspiration for the development of the US Forestry Service and National Park Service. It is easily readable and engaging while giving an incredibly detailed and laid out history of the events surrounding this fire. Readers familiar with the wildland fire fighting world may know Pulaski’s name from the Pulaski tool credited to him (and likely created after this incident due to the need shown for better firefighting tools) that is a national standard.

For more information:

New Film Highlights the Unsung Heroes of Wildland Firefighting

only the brave movie poster

© 2017 Sony Pictures Digital Productions Inc. All rights reserved.
Motion Picture © 2017 No Exit Film, LLC. All rights reserved.

2017 has brought devastating wildfires to much of the Western United States. Wyoming, Idaho, Oregon, and Washington all fared way worse than expected with more than 8 million acres consumed and hundreds of homes lost. California was the hardest hit, experiencing the deadliest and most destructive fires in the state’s history. The fires that tore through Northern California last month engulfed over 245,000 acres, destroyed some 8,000 structures, and caused the loss of life to more than 40 people. Much of country is fortunate to not experience wildfires of this scale and may find this level of devastation hard to comprehend. Fewer still understand the hard fought battle wildland firefighters wage to protect land, life, and structures.

No films in recent memory have told a compelling story of the unsung heroes of wildland firefighting. Short of news stories, audiences likely have little appreciation for the fury of a large wildfires moving like a tidal wave across the landscape. Most of the recent firefighting movies have focused on urban fire stations or have been laughable action films like Firestorm. In the wake of the historic 2017 wildfire season a movie now in theaters finally helps remedy that.

Only the Brave released by Columbia/Sony Pictures recounts the tale of a small group of wildland firefighters, the Granite Mountain Hotshots. The movie, based on an article in GQ titled No Exit, by Sean Flynn, focuses on the personal struggles of Superintendent Eric Marsh (Josh Brolin) and Brendan McDonough (Miles Teller), whose personal dramas act as a back drop to the formation of the Granite Mountain hotshots and the fires they battled across the country.

The Granite Mountain Hotshots started as a fuels mitigation crew for the city of Prescott before transitioning to a type 2 hand crew in 2004. After becoming frustrated about the crew’s role on numerous fires, Marsh fought for the team to earn an evaluation to become certified as a Hotshot crew. In 2008, after a lot of hard work and politicking the crew earned the distinction as the first municipal hotshot crew in the nation. Hotshots are small crews of elite wildland firefighters trained to fight fires directly in remote backcountry terrain with shovels, chainsaws, and limited support from other resources. Often working in steep rugged terrain with hot and dry conditions, they dig line, cut down trees and light back fires to help keep contain fires to a planned perimeter.

The first two thirds of the movie unfold around these events showing the arduous training, inherent dangers of firefighting, and the bonds it forms within the crew. Much of the story is told through the perspective of new recruit Brendan McDonough, a recovering drug addict who is given a second chance to build a new life for himself and his new born daughter. McDonough’s training allows the movie to tell a story that is not only engaging but is also informative and instructional.

Numerous scenes in the movie depict the crew digging line, clearing brush, and using drip torches and flares to start fires. Seeing firefighters using fire to fight fire is likely new to audiences inexperienced with wildland fire-fighting techniques. The movie shows how flares and drip torches allow firefighters to burn vegetation ahead of an incoming fire-front in order to establish a fire break that robs the approaching blaze of fuel that it needs to continue spreading. These fires can also be used to help steer the main fire or provide safety zones.

The film seamlessly blends some intense scenes of the crew with amazing special effects to highlight the enormity of wildfires and the challenges faced in trying to contain them. The director Joseph Kosinski avoids the normal pitfalls inherent in the typical macho-posturing movies and instead delivers a poignant story that is both emotional and respectful. Kosinski and the actors deliver a sincere portrayal of their real life counterparts along with their authentic camaraderie. Although there are some obvious Hollywood liberties taken, the film faithfully recreates the facts that matter most. Some of the scenes, like the human pyramid in front of the giant Juniper, were painstakingly recreated to pay homage to the now iconic photo of the crew celebrating the successful saving of the sacred Prescott tree during the Doce Fire.

I was refreshing to see that even as the film builds to its inevitable climax at Yarnell Hill, it stayed true to the story, adhering closely to official reports. For example, much of the dialogue is pulled straight from radio transcripts and the accounts from other firefighters on scene. Kosinki lays out the events of the Yarnell Hill Fire “as is” without attempting to try and invent motivations or answer questions that remain unanswered. The result is powerful and effective.

Only the Brave should give viewers a greater appreciation for the role played and the danger faced by wildland firefighters in the perennial battle to protect lives and land in the American West.

granite mountain fund

The Granite Mountain Fund drives donations to support firefighting as well as the towns and families connected to and impacted by hotshots and their work.

Napa Sonoma Fires

Takeaways from the Napa Sonoma Fire Siege

Earlier this week I published some thoughts about the first 24 hours of the October Napa Sonoma Fire Siege. The unprecedented destruction caused by these fires provoked many questions in the emergency world, insurance, and especially the public. We asked our Senior Fire Liaison Doug Lannon his  thoughts to questions regarding;  1) Why were so many homes lost, 2) Why are these fires different, and 3) Why did we see so many homes burn to the ground, but some trees next to homes are still standing?

Weather

Northern California and the North Bay had been in Red Flag Warning conditions for several consecutive weeks before the fires, and were still under a Red Flag Warning when the fires began.  A severe “Santa Ana” type Foehn wind event coupled with low Relative Humidity and dangerously low fuel moistures were a design for disaster under the circumstances.

  • The winds were coming out of the northeast sustained at 40 mph with gusts up to 75 mph
  • Relative Humidity was in the single digits (RH below 20%, more receptive to ignitions)
  • Hot 80 and 90 degree temperatures contributed to the fuel ignition temperature and fire spread
  • During the autumn months, the North Bay temperatures are cooler and many people leave their windows open, making their homes and businesses even susceptible to ember intrusion

Fuels

Following more than five years of drought, the area received almost three times the normal amount of rain last winter and spring, causing two to three times the amount of grass crop and light flashy fuels to grow, but not enough to raise the living fuel moistures in heavy brush and timber to recover completely.  Also tree mortality is at an all-time high in the North State.

  • Dead fuel moisture sticks were hovering between 1 and 2 (10 is maximum, below 5 is serious)
  • Living fuel moisture was at 57% (80% is serious and below 60% is critical), 240% is maximum
  • Light and flashy fuels were abundant and twice as tall and thick as in normal years
  • Moderate to heavy fuels (brush and oak woodland) were extremely dry and abundant
  • Some homes did not have adequate clearance of native vegetation around the structures
  • Many homes had good clearance from native vegetation, but were surrounded by combustible ornamental shrubbery which also contributed to the fire spread into structures
  • Predominate fuel was grass, brush, and oak woodland which can send heavy embers skyward
  • Oak trees, palm trees, and conifer trees will send burning material high up into the convection column and those hot embers can rain down causing new spot fires ahead of the main fire
  • During the autumn months, oak leaves fall off trees adding to the combustible ground litter which can contribute to ember storms (similar to last year’s Gatlinburg Fires)
  • In some cases, ornamental shrubbery planted around homes appeared to have been well irrigated, causing some plants and trees to survive while homes burned

Topography

The areas where the fires were burning are mountainous, fairly hilly and in some cases steep and rugged.  Most drainages on the west side of the mountain ranges in the area are in perfect alignment for a northeast wind to send the fires down into the valley areas to the southwest and into populated, urban, and commercial areas.  Many homes were built along ridgetops and in canyons and passes adjacent to heavily wooded areas.

santa rosa neighborhood damage from the Napa Sonoma Fire Siege

Digital Globe Imagery released October 14th, 2017 shows whole neighborhoods wiped out in northeast Santa Rosa by the Tubbs Fire.

National Fire Danger Rating System

NFDRS components were at the extreme and very critical levels with the Energy Release Components (ERCs) at the highest levels we have seen in the past 26 years (since ERCs have been monitored).  The ERCs for these fires were greater than 90%.  ERCs relate to the available energy (BTUs) per unit area (square foot) within the flaming front at the head of a fire.  Daily variations in ERCs are due to changes in moisture content of the various fuels present, both live and dead.  So this number represents the potential heat release per unit area in the flaming zone.  As live fuels cure and dead fuels dry, the ERC values get higher, providing a good reflection of drought conditions.  Ignition Components (IC) were hovering between 90% and 100%.  The IC numbers represent an estimate of the probability of ignition when embers are blown in the wind ahead of the main fire and are able to contact a receptive fuel bed, then each could result in a new fire.  An IC of 90% to 100% means that if 100 embers are blown in the wind and come in contact with a receptive fuel bed, than those embers will result in 90 to 100 new starts (spot fires).  Scientific research is showing that many of the above factors can be attributed to Climate Change or Global Warming.

Multiple Fires and Lack of Available Resources

Multiple fires ignited during an extreme wind event, resulting in fifteen major fires burning at one time in Napa, Sonoma, Mendocino, and Solano Counties.  This quickly overwhelmed local, State, and Federal firefighting resources that would normally be available to respond mutual aid to the area where the fires were burning.  The first fire (Tubbs) along Tubbs Lane near Calistoga was ignited at about 2230 hours on Sunday night and began burning rapidly to the southwest towards Santa Rosa.  As more fires ignited, many resources that were originally responding to the Tubbs Fire were diverted to other new fires.  This trend continued for almost twelve hours, resulting in insufficient resources being assigned to active fires burning in the North Bay, while other in-state and out-of-state resources began responding for mutual aid, but had long travel times.  At the same time, other major fires were igniting, one in Orange County and two in Butte County, further taxing the State’s Master Mutual Aid system.  The causes for these fires are still under investigation and have not been released, but rumor has it that downed powerlines, downed power poles, and downed trees into powerlines were largely responsible for causing several of the fires.

Ember Storms

Abundant light, flashy, heavy, and ground litter fuels (dead leaves off of trees, etc.) coupled with the very high winds began blowing burning embers into receptive fuel beds.  This phenomenon was definitely a major contributor to the rapid fire spread, creating spotting.  Many homes and commercial structures had combustible materials next to and in close proximity to the structures, allowing the many spot fires created by embers to spread into those structures.

Rapid Evacuations

The majority of the fires were ignited at nighttime or in the early morning hours, catching people asleep and in their beds.  In many cases the fires were rapidly encroaching on structures when people were awakened and made aware of the hazard, causing many people to evacuate with only the clothes they were wearing and without closing some doors, windows, garage doors, etc.  This left homes more susceptible to ember intrusion, causing some homes to burn from the inside out.

destructive fires list showing four additions from the Napa Sonoma Fire Siege

An updated (Nov 1, 2017) look at California’s 20 most destructive wildfires with four fires added (in red) from last month’s Napa Sonoma fire siege.

 

Written by: Douglas J. Lannon, Senior Fire Liaison, RedZone Disaster Intelligence, LLC.

Napa Sonoma Fires

As the Napa and Sonoma Fires Unfolded

THE FIRST 24 HOURS

Santa Rosa Neighborhood damaged

A fallen flag re-hung the day after the fires burned through the neighborhoods of NE Santa Rosa

1130 Oct 8

For me, it was a typical Fall Sunday in America; highlighted by a one-year old’s birthday party and a big Packer win over the Cowboys. My arrival at home didn’t come until after 10 o’clock, in this case maybe fortunately, and the nightly peek at my work emails even later than that. On a typical Sunday night, my inbox might have some evening updates on fires or new reports of small, irrelevant starts. In this case, by 1130pm I already had twelve IPN emails and loads of tweets warning of the multiple starts. I was alarmed to see troubling terms like “high winds”, “evacuations”, and even “structure involvement” were being used for fires across multiple Northern California counties. I immediately flashed back to Gatlinburg TN, where lives and property were tragically lost in the middle of the night less than a year ago. I sprung into action, turning on fire radio and attempting to figure out exactly where all this activity fell on our map. For the first time in my five years with RedZone, I was headed to the office in the middle of the night to get a headstart on what was surely going to be a long couple days ahead dealing with the Napa Sonoma Fires.

0400 Oct 9

Not long after my colleague and I arrived, we knew what were hearing was really bad news. By 4 am we had about a dozen new large wildfire starts on our radar. Winds howling north of 50 mph were sending extreme fire behavior through the dry grass and oak terrain of several northern counties.  Butte had fires. Clearlake had a fire. Mendocino had fire. Sonoma had multiple fires. Napa was on fire. What’s worse, is, not only is it just wildfire chaos but it’s in the middle of the night. Due to strained resources and limited air reinforcements, fire crews focused all their energy on life-saving and evacuation activities rather than attempt any form of structure protection. As the morning wore on, the true impact to life and property was apparent as radio traffic was overwhelmed with calls of residents entrapped and flooded with eerily streamlined reports of structures ablaze. It was one of the worst things I’ve witnessed unfold, as I knew in my heart not everyone would get out alive.

1800 Oct 9

We spent a good part of late summer watching three major hurricanes devastate areas like Houston, Key West, and Puerto Rico. Something about this just seemed worse, probably the lack of warning and widespread destruction. By the time most of the country woke up, the Tubbs and Atlas Fires had already force-evacuated thousands leaving destroyed homes and commercial properties in its wake. In Santa Rosa, the fire actually crossed the 101 Highway through town. In Napa, a number of iconic wineries and high dollar properties were already devastated by the firestorm. What we saw was the result of a recipe for disaster. High winds with dry fuels and low RH; despite last winter’s drought-relieving rains, the excess fine fuels were ripe for the taking. The multiple starts knocked out cell towers and power across the area. Even as the day wore on and more and more resources arrived, all they could do was focus on evacuations, life-saving, and structure protection as the fires continued to burn uncontrolled.

napa sonoma fire progression

Napa Sonoma Fires progression from green on Oct 9 to dark red on Oct 18th

bark beetle tree

California Tree Mortality At An Unprecedented Level

Tree Mortality Overview

According to U.S. Forest Service study done in the summer of 2017, about 6.3 billion dead trees are still standing in 11 Western states, an increase of half a billion from five years ago. 103 million trees have died in California alone since 2010. So what’s happening to the trees? Well, established trees are normally fairly resilient to seasonal changes in their environment, but the last five years of drought in CA coupled with climate change impacts have imposed several stressors acting on the trees at the same time. Most native California trees are fairly resilient to drought, but a prolonged drought weakens the trees and exposes them to pests and disease that a healthier tree could normally fight off. A recent story by the CBS San Francisco discussed the situation in the Sierra National Forest with two Forestry experts there. They stated that there are more dead trees than live ones and will be dealing with the tree mortality there for many years to come.

Tree Mortality Danger

When a tree dies, its wood dries out and becomes very flammable.  When building a campfire, there’s a reason we use downed wood instead of chopping down live trees. Healthy, living trees have a relatively high moisture content.  This helps trees survive a wildfire and slows the progress of that wildfire. When tree death occurs from old age or other reasons, standing dead or fallen trees provide a large amount of dry fuel for wildfires, encouraging fire growth and hindering efforts to put it out. Not only are decomposing trees more flammable, they can also present a safety hazard to firefighters. Specifically, dead trees can fall during fires (which have resulted in deaths), and fallen trees can be an obstacle preventing vehicles and firefighters from reaching or escaping a wildfire.

bark beetle-caused tree mortality

Bark Beetle impact from 2012 US Forest Service report

What’s Happening to the Trees?

Established trees are fairly resilient to seasonal changes in their environment, so it is difficult to understand exactly what is causing so much tree death in California. Perhaps not surprisingly, several stressors have been acting on the trees at the same time.

Drought:

California saw a five-year historic drought that only just ended this last year. Most native California trees are fairly resilient to drought, but this prolonged drought weakened the trees and made them more susceptible to beetles and disease. Two deadly invaders that a healthier tree could normally fight off.

tree mortality in Julian

Tree death (brown trees) near Julian in San Diego County

Pests:

Tree bark is the main defense for trees against pests, disease, and fires. Bark beetles burrow into the bark and expose the trees to other pests or diseases, and can reduce their fire resiliency. Different types of bark beetles act as pests to different types of trees. The Pines and Conifers in the Sierra Nevada Mountains have been decimated by these beetles. Beetle-kill trees have been blamed for prolonging the firefight on the Beaver Creek Fire in Northern Colorado and also the Cedar Fire in California’s Southern Sierra Nevada Range. Tree deaths due to these beetles have been attributed to several major campaign fires across the west over the past few summers. The map above shows hard-hit beetle kill timber forests across the west (in red), which includes both the Cedar and Beaver Creek fire areas.

Disease:

The coast live oak trees have been exposed to Sudden Oak Death, which is caused by a non-native tree fungus. This fungus and other non-native diseases are responsible for an estimated 5 – 10 million oak tree deaths. Many dead trees were identified in the areas where the Soberanes fire near Big Sur is currently burning and have likely contributed (along with major drought) to its acreage eclipsing 100,000 this week.

Plans for Tree Death Prevention

Drought, pests, and disease all put stress on otherwise healthy trees.  When these stresses are combined, we can expect to see continued tree death at unprecedented scales. California has programs to both reduce the amount of tree death and to remove dead trees as a means of reducing fire danger.  Lately, resources have been too scarce to keep up with the levels of tree deaths plaguing the state. Learn more about the epidemic and what is being done to prevent further problems here.


Sources:

www.fs.fed.us

www.fire.ca.gov

www.yale.edu

The Denver Post

Editor’s Note: This article was originally published in September 2016 and was updated in September 2017

What is a Fire-Use Wildfire and How is it Beneficial to Forests?

Not every naturally occurring wildland fire is actively suppressed. Naturally occurring wildland fires are normally caused by lightening strikes in areas with fallen trees and other dry accumulated fuels. Under certain circumstances, some wildland fires will be allowed to actively burn in order to help clear these fuels and promote forest health. When a wildland fire is allowed to burn within a pre-defined area to achieve a resource or protection objective it is referred to as a Fire-Use Wildfire. A fire-use fire is different from a prescribed fire in which firefighters intentionally set fires to achieve similar objectives. In addition, federally mandated guidelines state that every human-caused wildland fire will be suppressed and will not be managed for resource benefits. Additionally, once a wildland fire has been managed for suppression objectives, it may never be managed for resource benefit objectives. In other words, a wildland fire must either be suppressed or used for a resource/protection objective but not both.

The Departments of Interior and Agriculture, together with tribal governments, state governments, and local jurisdictions, have the responsibility for protection and management of natural resources on public and Indian Trust lands in the United States. A wildland use fire is one option available to Federal agencies that have an approved land use plan and need to achieve a resource or protection objective. Contributing factors that help steer a fire managers decision-making process are often incident specific. Location, available resources, predicted weather, topography, air quality, and predicted fire behavior are all factors that contribute to fire management decisions.

If a fire is located in remote, steep, rugged or highly inaccessible terrain and people are not threatened, managing the fire as a wildland use fire to meet a protection objective may be more appropriate and can help avoid putting firefighters in unnecessary danger. A wildland use fire can meet resource objectives like helping to maintain healthy forests by supporting a diverse ecosystem. Some wild plants and trees even need fire in order for their seeds to germinate. A carefully monitored wildland use fire can also help reduce naturally occurring fuels accumulation, which could lead to an even bigger wildfire if left unchecked.

Current Large Fire-Use Wildfires

Empire Fire – Yosemite National Park – 1,797 acres

Empire Fire-use Fire Near Yosemite

The Empire Fire burning near Yosemite National Park was caused by lightening and is being managed to promote the health of the ecosystem and protective objectives.

Young Fire – Six Rivers NF & Siskiyou Wilderness – 2,200 acres

Sources

https://www.fws.gov/fire/what_we_do/wildland_fire_use.shtml

https://www.nps.gov/fire/wildland-fire/learning-center/fire-in-depth/ecology.cfm

https://www.sciencedaily.com/releases/2016/07/160705141437.htm

 

RFW in Santa Barbara

Weekend Red Flag Conditions for Santa Barbara County

Santa Barbara area expecting Sundowner Winds with Red Flag

The National Weather Service has issued a Red Flag Warning for the Santa Barbara County Mountains and South Coast region for Thursday from 0900 hours through Saturday 1000 hours PDT. The area will see sundowner winds gusting up to 40 mph and relative humidity as low as 10%. These conditions, combined with temperatures reaching into the mid 90’s in the afternoons and 100’s in isolated locations, may contribute to explosive fire behavior. The regions most at risk are the foothills and through the passes and canyons.

A sundowner wind is an offshore northerly Foehn wind that occurs near Santa Barbara, California. The winds surface when a ridge of high pressure is directly north of the area, and they blow with greatest force when the pressure gradient is perpendicular to the axis of the Santa Ynez Mountains which rise directly behind Santa Barbara. These winds often precede Santa Ana events by a day or two, as it is normal for high-pressure areas to migrate east, causing the pressure gradients to shift to the northeast.

 

Red Flag in Santa Barbara

Red Flag warning area of Santa Barbara County

Significant Santa Barbara Sundowner Events

Sundowner winds are dried and heated by the warm inland valleys and deserts. As narrow canyons and valleys compress the winds, they become stronger and overpower the diurnal winds. Firefighting efforts during a sundowner wind event can become extremely dangerous as well as difficult. Three significant fires in the last three decades have resulted in part because of sundowner conditions.

  1. The Jesusita fire in May 2009 burned 8,733 acres and destroyed 80 homes while damaging 15 more. Most of the destruction occurred while sundowner winds pushed the main fire through populated areas.
  2. The Painted Cave Fire during June 1990 rapidly grew to 5,000 acres, destroying 427 buildings and killing 1 civilian.
  3. The Sherpa Fire grew to 4,000 acres overnight due to the sundowner winds, damaging the water system for El Capitán State Beach in the middle of June of last fire season.
three major red flag sundowner fires

Three significant Sundowner fires in Santa Barbara County

 


Sources: Wikipedia, NIFC Fire history, LA Times, KEYT Santa Barbara

Aerial photo over Kynsna area (Source: South African Red Cross)

Wildfires Rage Across South Africa’s Cape After Massive Winter Storm

Hundreds are left homeless and thousands remain evacuated after the strongest winter storm in decades assaulted Cape Town, South Africa, and continued across the southern region of South Africa known as the Western Cape. Numerous lightning strikes associated with the massive storm ignited wildfires that raged across hillsides, fueled by gusting and strong winds, even as nearby areas began to flood and were drenched by rain. Tuesday evening, June 6th, the storm began to impact the Western Cape. By Wednesday, thousands of residents along the major roadway N2, famously known as the “Garden Route”, were evacuated as wildfires blazed toward nearby neighborhoods. As of June 8th, 4pm PDT, nine deaths are attributed to the storm, home collapses, and wildfires.

Storm Impact & Wildfires in Area around Cape Town and Knysna (Source: Google Earth)

Storm & Wildfire Impacted Area around Cape Town and Knysna (Source: Google Earth)

Current Situation

The local media is referring to this as the “mother of all storms”. A compounding factor to the devastating impact to the region is the already poor housing covering much of the area. Shanty towns burn quickly and can also collapse simply due to the strength of the winds. Flood waters also washed away several communities due to non-permanent construction. Part of the evacuation process included a local hospital in Knysna had to move all personnel and patients due to the approaching wildfires. The rain now falling on the Knysna area will assist firefighting efforts to get the wildfires under control; however, the additional rains will increase the possibilities for mudslides in the area.

Activity of Wildfires in last 48 hours, centered on Knysna (Source: Advanced Fire Information System Viewer – AFIS)

Wildfire activity in last 48 hours, centered on Knysna (Source: Advanced Fire Information System Viewer – AFIS)

Recovery & Outlook

So far, reports indicate more than 150 structures were destroyed throughout 20 suburbs. Cape Town, fortunately, has restored approximately 90% of its power. Across the impacted area, staff are opening shelters and resource centers to assist those displaced. The rains received may help with a fraction of the drought situation, but Level 3 water restrictions remain in place. Wetting rains over a longer duration are needed to truly have an impact. Local volunteers are collecting donations of items such as food, water, blankets, and other basic necessities for those affected by this disaster.

Aerial photo over Kynsna area of wildfires (Source: South African Red Cross)

Aerial photo over Kynsna area (Source: South African Red Cross)

Read further

Live update stream: http://www.news24.com/SouthAfrica/News/live-knysna-evacuation-underway-20170607

http://www.bbc.com/news/world-africa-40199270

http://www.accuweather.com/en/weather-news/powerful-winter-storm-kills-at-least-eight-in-cape-town/70001884

http://www.cnn.com/2017/06/08/world/south-africa-fires/

http://www.aljazeera.com/news/2017/06/storm-kills-displaces-thousands-cape-town-170608052748704.html