PREPARING FOR RAINSTORMS

While many wildfires cause minimal damage to the land and pose few threats to the land or people downstream, some fires cause damage that requires special efforts to prevent problems afterwards.  Wildfire increases the potential for flooding, post-fire soil erosion and debris flows that could impact homes, structures, campgrounds, aquatic dependent plants and animals, roads, and other infrastructure within, adjacent to, and downstream from the burned area. 

Post-fire watershed conditions will naturally receive and transport water and sediment differently than during pre-fire conditions. Monsoonal storms bring heavy rain and rapid runoff from burned areas. Residents and visitors should remain alert to weather events and plan ahead when travelling along roads and trails within and downstream from the burned areas on the Angeles National Forest (NF).

The Forest Service Burned Area Emergency Response (BAER) team working with the Angeles NF to assess post fire conditions of the watersheds on federal land that were burned in the Ranch2 and Lake Fires. The BAER assessment team identifies potential emergency threats to critical values-at-risk and recommends emergency stabilization response actions that are implemented on federal lands to reduce potential threats. 

For values and resources potentially impacted off National Forest System lands, one of the most effective BAER strategies is its interagency coordination with local cooperators who assist affected businesses, homes, and landowners prepare for rain events. The Forest Service and Natural Resources Conservation Service (NRCS) work together and coordinate with other federal, state, and local agencies, and counties that assist private landowners in preparing for increased run-off and potential flooding.

Federal assistance to private landowners is administered by NRCS through the Emergency Watershed Protection (EWP) program (www.nrcs.usda.gov/wps/portal/nrcs/main/national/programs/landscape/ewpp/). NRCS and the Resource Conservation Districts work with local governments (sponsors) to implement emergency measures in the wake of natural disasters to safeguard human lives, property, and natural resources. 

NRCS and local sponsors prepare damage survey reports for eligible sites on private lands adjacent to and downstream from affected areas. NRCS uses these reports, along with the BAER team’s assessment report, to develop emergency measures to reduce the impacts from potential increased water and debris flows, and assist sponsors to implement recommended emergency measures (www.nrcs.usda.gov/Internet/FSE_DOCUMENTS/stelprdb1045263.pdf).

Multiple agencies work with BAER teams and look at the full scope and scale of the situation to reduce the potential threats to human life and safety, and property; however, BAER emergency stabilization actions on federal lands cannot prevent all of the potential flooding or soil erosion impacts, especially after wildfires change the landscape.

It is important that residents take steps to protect themselves and their property from flooding and debris flows:

- For their safety, communities need to monitor local weather reports and public safety bulletins, local road closures, emergency notifications, weather alerts, follow local county and city advisories, and act accordingly.

- Use a “weather radio” or smart phone “weather app” that monitors “all hazards” alerts issued by the NOAA-National Weather Service (www.nws.noaa.gov/nwr/).

- Prepare for rainstorms by being prepared to evacuate if county or city emergency officials determine that flooding and debris flows are expected which could pose an increased threat to human life, safety, and property. Practice evacuations prior to real events.

- Know and be alert to environmental signs of dangerous weather conditions and be prepared to take action that can save lives.

- Understand that all drainages within and downstream of burned areas can produce flash flooding.

- If you find yourself in a flood, climb to safety (seek higher ground).

- Even if the water appears shallow enough to cross, don’t try it by vehicle or foot. Water hides dips in the road – worse yet, there may be no road left under the water as flooding can scour away the entire road surface and ground beneath the road.

Interagency Resources for Flood and Storm Preparedness and Emergency Information

Local Counties

The following local County Offices of Emergency Services and Management promote preparedness through its emergency services programs to assist the public to prepare for, respond appropriately to, and quickly recover from natural emergencies that may impact county residents and visitors:

• Los Angeles County Flood Control District

• Los Angeles County Flood Information

• Los Angeles County Emergency Alerts

• Los Angeles County Rainfall Network

• Los Angeles County Emergency Preparedness

• Los Angeles County Rain Resources

• Los Angeles County DPW—Flood & Fire Resources

• Los Angeles County-Debris & Mudflow Potential Forecast

State Agencies

The California Department of Water Resources (Cal DWS) provides information about emergency preparedness, flood and storm preparation in partnership with the California Governor’s Office of Emergency Services (CalOES):

Other Federal Agencies

The US Army Corps of Engineers (Corps) coordinates its Emergency Management program with the Federal Emergency Management Agency (FEMA) and local governments to provide engineering services to respond to national and natural disasters in order to minimize damages and help in recovery efforts. Public Law 84-99 enables the Corps to assist state and local authorities in flood fight activities and cost share in the repair of flood protection structures. Public Law 93-288 authorizes FEMA to task the Corps with disaster recovery missions under the Federal Response Plan: www.usace.army.mil/Missions/EmergencyOperations/NationalResponseFramework/FloodControl.aspx.

Homes or businesses that could be impacted by flooding from federal land that resulted from wildfires may be eligible for flood insurance coverage from the National Flood Insurance Program (NFIP).  Information about NFIP is available through FEMA at www.fema.gov/wildfires-you-need-flood-insurance or www.fema.gov/national-flood-insurance-program. Other flood preparedness information is available at www.ready.gov/floods at www.floodsmart.gov/.

The NOAA National Weather Service (NWS)-San Diego office created a website featuring information about flash flooding and debris flows, precipitation forecast and a flash flood potential forecast dashboard, and is located at: www.wrh.noaa.gov/sgx/hydro/ffpd.php.  The NWS-San Diego and Forest Service discuss Monsoon Storm Awareness in this video: https://www.youtube.com/watch?v=bgK0GVrJyRo.

SPECIAL NOTE: Everyone near and downstream from the burned areas should remain alert and stay updated on weather conditions that may result in heavy rains over the burn scars. Flash flooding may occur quickly during heavy rain events-be prepared to take action. Current weather and emergency notifications can be found at the National Weather Service website: www.weather.gov/lox/.

KEY ELEMENTS OF A BAER ASSESSMENT 
                              
Forest Service BAER assessment teams are established by Forest Supervisors before wildfires are fully contained. The teams coordinate and work with the USDA Natural Resources Conservation Service (NRCS), Bureau of Land Management (BLM), Fish & Wildlife Service (FWS), National Weather Service (NWS), local counties, State Department of Transportation, and other federal, state, and local agencies to strategically assess potential post-fire impacts to the watersheds burned from wildland fires.

• The BAER assessment teams are evaluating watershed conditions to determine the level of potential risks to human life, safety, property, critical natural and cultural-heritage resources, and determine if there are appropriate and effective emergency stabilization measures that can be implemented on federal lands in a timely manner to reduce unacceptable risks from potential flooding and debris flow threats.

• The BAER assessment team conducts field surveys and uses science-based models to rapidly evaluate and assess the burned area.

• BAER assessment teams are staffed by specially trained professionals that may include: hydrologists, soil scientists, engineers, geologists, biologists, botanists, archeologists, geographic information system mapping specialists, recreation and trails specialists, and others who evaluate the burned area and prescribe emergency response actions to protect the land quickly and effectively.

• BAER assessments usually begin before a wildfire has been fully contained.

• The BAER assessment team generates a “Soil Burn Severity” map by using satellite imagery which is then validated and adjusted by BAER team field surveys to assess watershed conditions and watershed response to the wildfire. The map identifies areas of soil burn severity by categories of low/unburned, moderate, and high which corresponds to a projected increase in watershed response.

• The BAER team presents these findings and treatment recommendations to the Forest Supervisor in an assessment report that identifies immediate and emergency stabilization actions needed to address potential post-fire risks to human life and safety, property, cultural-heritage and critical natural resources on National Forest System lands.

• The BAER report describes watershed pre- and post-fire response information, areas of concern for human life, safety and property, and recommended short-term emergency stabilization actions for federal lands that burned.

• In most cases, only a portion of the burned area is actually treated.

• If the BAER assessment team determines there may be potential emergency situations, the short-term goal is to have flood and erosion control protection measures completed before the first large, damaging rain events occur.

• Timely implementation is critical if BAER emergency response actions are to be effective.

• The BAER assessment team coordinates with other federal and local agencies, and counties that assist private landowners in preparing for increased run-off and potential flooding.

• Federal assistance to private landowners regarding post-fire potential impacts is the primary responsibility of the NRCS through the Emergency Watershed Protection (EWP) program (www.nrcs.usda.gov/wps/portal/nrcs/main/national/programs/landscape/ewpp/).

• NRCS in coordination with additional state, local and federal agencies conduct damage survey reports for the private land adjacent to and downstream from the burned areas. NRCS uses these reports, along with the BAER team’s assessment report, to develop recommended emergency measures for businesses and private home and landowners to reduce the impacts to their property from potential increased water and debris flows.

  SPECIAL NOTE: Everyone near and downstream from the burned areas should remain alert and stay updated on weather conditions that may result in heavy rains over the burn scars. Flash flooding may occur quickly during heavy rain events-be prepared to take action. Current weather and emergency notifications can be found at the National Weather Service website: www.weather.gov/lox/.

Burned Area Emergency Response (BAER) Limitations

While many wildfires cause minimal damage to the land and pose few threats to the land or people downstream, some fires result in damage that requires special efforts to reduce impacts afterwards. Loss of vegetation exposes soil to erosion; water run-off may increase and cause flooding, soil and rock may move downstream and damage property or fill reservoirs putting community water supplies and endangered species at-risk.

The Burned Area Emergency Response (BAER) program is designed to identify and manage potential risks to resources on National Forest System lands and reduce these threats through appropriate emergency measures to protect human life and safety, property, and critical natural or cultural resources. BAER is an emergency program for stabilization work that involves time-critical activities to be completed before the first damaging storm event to meet program objectives.

BAER Objectives:

• Determine whether imminent post-wildfire threats to human life and safety, property, and critical natural or cultural resources on National Forest System lands exist and take immediate actions, as appropriate, to manage the unacceptable risks.
• If emergency conditions are identified, mitigate significant threats to human life and safety, Forest Service property and other critical natural and cultural resource values.
• Prescribe emergency response actions to stabilize and prevent unacceptable degradation to natural and cultural resources, to minimize threats to life or property resulting from the effects of a fire, or to repair/replace/construct physical improvements necessary to prevent degradation of land or resources.
• Implement emergency response actions to help stabilize soil; control water, sediment and debris movement and potentially reduce threats to the BAER critical values identified above when an analysis shows that planned actions are likely to reduce risks substantially within the first year following containment of the fire.
• Monitor the implementation and effectiveness of emergency treatments that were applied on National Forest System lands.

BAER Interagency Coordination:

Post-fire emergency response is a shared responsibility. There are several Federal, State and local agencies that have emergency response responsibilities or authorities in the post-fire environment. The BAER team coordinates with these agencies to look at the full scope and scale of the situation to reduce the potential threats to human life and property. It is important that BAER efforts are communicated with all affected and interested cooperating agencies and organizations regarding other post-fire recovery and restoration efforts.

BAER treatments cannot prevent all of the potential flooding or soil erosion impacts, especially after a wildfire-changed landscape. It is important for the public to stay informed and prepared for potentially dramatic increased run-off events.

One of the most effective BAER strategies is interagency coordination to provide post-fire threat information to local cooperators who can assist affected businesses, homes, and landowners to prepare for rain events. For example, the Natural Resources Conservation Service (NRCS) has the Emergency Watershed Protection (EWP) program for post-emergency assistance on private and tribal land, the National Weather Service (NWS) has responsibility for flood warning alerts, the Federal Emergency Management Agency (FEMA) has flood insurance and other responsibilities if the area is a Presidentially-declared emergency, Resource Conservation Districts (RCD) and counties, as well as State and local-highway and emergency services departments, Flood Control authorities, etc. It is important that landowners work directly with NRCS and other agencies to determine appropriate actions needed to protect private structures and other assets.

BAER Process:

BAER assessment teams are staffed by specially trained professionals that may include: hydrologists, soil scientists, engineers, biologists, botanists, archeologists, and others who evaluate the burned area and prescribe temporary emergency stabilization actions on National Forest System lands to protect the land quickly and effectively. BAER assessments usually begin before a wildfire has been fully contained.

A BAER assessment team conducts field surveys and uses science-based models to rapidly evaluate and assess the burned area and prescribe emergency stabilization measures. The team generates a “Soil Burn Severity” map by using satellite imagery which is then validated and adjusted by BAER team field surveys to assess watershed conditions and model potential watershed response from the wildfire. The map identifies areas of soil burn severity by categories of very low/unburned, low, moderate, and high which may correspond to a projected increase in watershed response. The higher the burn severity, the less the soil will be able to absorb water when it rains. Without absorption, there will be increased run-off with the potential of flooding.

The BAER team presents these findings in an assessment report that identifies immediate and emergency actions needed to address post-fire risks to human life and safety, property, cultural and critical natural resources. This includes early detection and rapid response (EDRR) treatments to prevent the spread of noxious weeds into native plant communities. The BAER report describes watershed pre- and post-fire watershed response information, areas of concern for life and property, and recommended short-term emergency stabilization measures for Forest Service lands that burned.

In most cases, only a portion of the burned area is actually treated. Severely burned areas steep slopes, and places where water run-off will be excessive and may impact important resources, are focus areas and described in the BAER assessment report if they affect critical values. Response action timing is essential to ensure the emergency stabilization measures are effective.

There are a variety of emergency stabilization actions that the BAER team can recommend for Forest Service land such as mulching with agricultural straw or chipped wood to protect soil productivity, increasing road drainage to keep roads and bridges from washing-out during post-fire floods, and early detection rapid response invasive plant treatments to prevent spread of weeds into native plant communities. BAER treatments are preventative in nature but cannot prevent all damage, especially debris torrents in areas that are prone to sliding and have lost critical root structure from plants.

The Cans and Cannots of BAER:

What BAER Can Do:

• Install water or erosion control devices
• Seed or mulch for erosion control or stability reasons
• Install erosion control measures at critical cultural sites
• Install temporary barriers to protect treated or recovering areas
• Install warning signs
• Replace minor safety related facilities, like burned guard rails
• Install appropriate-sized drainage features on roads, trails
• Remove critical safety hazards
• Prevent permanent loss of T&E habitat
• Monitor BAER treatments
• Implement EDRR treatments to minimize the spread of noxious weeds into native plant communities

What BAER Cannot Do:

• Prevent all flooding and debris flows
• Replant commercial forests or grass for forage
• Excavate and interpret cultural sites
• Replace burned pasture fences
• Install interpretive signs
• Replace burned buildings, bridges, corrals, etc.
• Repair roads damaged by floods after fire
• Remove all hazard trees
• Replace burned habitat
• Monitor fire effects
• Treat pre-existing noxious weeds

BAER Funding:

Special Emergency Wildfire Suppression funds are authorized for BAER activities and the amount of these expenses varies with the severity of the fire season. Some years see little BAER activity while other years are extremely busy.

Because of the emergency nature of BAER, initial requests for funding of proposed BAER treatments are supposed to be submitted by the Forest Supervisor to the Regional Office within7 days of total containment of the fire. The Regional Forester’s approval authority for individual BAER projects is limited. Approval for BAER projects exceeding this limit is forwarded onto the Washington Office.

SPECIAL NOTE: Everyone near and downstream from the burned areas should remain alert and stay updated on weather conditions that may result in heavy rains over the burn scars. Flash flooding may occur quickly during heavy rain events-be prepared to take action. Current weather and emergency notifications can be found at the National Weather Service website: www.weather.gov/lox/.   

FOREST SERVICE BAER PROGRAM OVERVIEW

The Burned Area Emergency Response (BAER) program is designed to identify and manage potential risks to resources on National Forest System lands and reduce these threats through appropriate emergency measures to protect human life and safety, property, and critical natural or cultural resources. BAER is an emergency program for stabilization work that involves time-critical activities to be completed before the first damaging event to meet program objectives:

BAER Objectives:

-   Determine whether imminent post-wildfire threats to human life and safety, property, and critical natural or cultural resources on National Forest System lands exist and take immediate actions, as appropriate, to manage the unacceptable risks.

-   If emergency conditions are identified, mitigate significant threats to health, safety, human life, property and critical cultural and natural resources.

-   Prescribe emergency response actions to stabilize and prevent unacceptable degradation to natural and cultural resources, to minimize threats to critical values resulting from the effects of a fire, or to repair/replace/construct physical improvements necessary to prevent degradation of land or resources.

-   Implement emergency response actions to help stabilize soil; control water, sediment and debris movement and potentially reduce threats to the BAER critical values identified above when an analysis shows that planned actions are likely to reduce risks substantially within the first year following containment of the fire.

-   Monitor the implementation and effectiveness of emergency treatments that were applied on National Forest System lands.

While many wildfires cause minimal damage to the land and pose few threats to the land or people downstream, some fires result in damage that requires special efforts to reduce impacts afterwards. Loss of vegetation exposes soil to erosion; water run-off may increase and cause flooding, soil and rock may move downstream and damage property or fill reservoirs putting community water supplies and endangered species at-risk.

The BAER team presents these findings in an assessment report that identifies immediate and emergency actions needed to address post-fire risks to human life and safety, property, cultural and critical natural resources. This includes early detection and rapid response (EDRR) treatments to prevent the spread of noxious weeds into native plant communities. The BAER report describes watershed pre- and post-fire watershed response information, areas of concern for life and property, and recommended short-term emergency stabilization measures for Forest Service lands that burned.

In most cases, only a portion of the burned area is actually treated. Severely burned areas steep slopes, and places where water run-off will be excessive and may impact important resources, are focus areas and described in the BAER assessment report if they affect critical values. Time is critical if the emergency stabilization measures are to be effective.

A BAER assessment team conducts field surveys and uses science-based models to rapidly evaluate and assess the burned area and prescribe emergency stabilization measures. The team generates a “Soil Burn Severity” map by using satellite imagery which is then validated and adjusted by BAER team field surveys to assess watershed conditions and model potential watershed response from the wildfire. The map identifies areas of soil burn severity by categories of very low/unburned, low, moderate, and high which may correspond to a projected increase in watershed response. The higher the burn severity, the less the soil will be able to absorb water when it rains. Without absorption, there will be increased run-off with the potential of flooding.

BAER Funding:

Special Emergency Wildfire Suppression funds are authorized for BAER activities and the amount of these expenses varies with the severity of the fire season. Some years see little BAER activity while other years are extremely busy.

Because of the emergency nature of BAER, initial requests for funding of proposed BAER treatments are supposed to be submitted by the Forest Supervisor to the Regional Office within 7 days of total containment of the fire. The Regional Forester’s approval authority for individual BAER projects is limited. Approval for BAER projects exceeding this limit is to the Washington Office.

SPECIAL NOTE: Everyone near and downstream from the burned areas should remain alert and stay updated on weather conditions that may result in heavy rains over the burn scars. Flash flooding may occur quickly during heavy rain events-be prepared to take action. Current weather and emergency notifications can be found at the National Weather Service website: www.weather.gov/lox/.

FOREST SERVICE BAER TEAM BEGINS

POST-FIRE ASSESSMENT OF WILDFIRES

A Forest Service Burned Area Emergency Response (BAER) team was established by the Angeles National Forest to begin burned area assessments of the Ranch2 and Lake Fires. The BAER team is being led by Forest Service Watershed Specialist Todd Ellsworth. The team is coordinating with the USDA Natural Resources Conservation Service (NRCS), National Weather Service (NWS), US Geological Survey (USGS), Los Angeles County DPW-Stormwater Division and other federal, state and local agencies as they assess potential post-fire impacts to the burned watersheds.

BAER surveys are rapid assessments that evaluate the burned area to identify watersheds having increased potential for post-fire flooding, sediment flows and rock slides. Since the BAER survey is a rapid assessment to assist land managers prepare the burned area for rainstorms, the team will focus on potential emergency impacts to life, and safety on National Forest System (NFS) land and share the team’s findings with the responsible downstream agencies.

BAER teams may consist of scientists and specialists including hydrologists, geologists, soil scientists, road engineers, botanists, wildlife biologists, recreation specialists, archeologists and geographic information specialists. BAER teams collect data during their burned area surveys to analyze through GIS and computer models and presents their findings along with recommended BAER emergency stabilization treatments in a BAER assessment report.

BAER teams utilize satellite imagery and specialist data to analyze and produce a map that shows the levels of burn severity on the watersheds. This is the first step in assessing potential watershed impacts from wildfires to any NFS values that may be at-risk from potential increased flooding, sedimentation, debris flows and rock slides. BAER teams produce a report that describes threats associated with the burned area’s post-fire conditions along with recommended emergency stabilization measures and actions. BAER emergency response efforts are focused on the protection of human life, safety and property, as well as critical cultural and natural resource values such as the water quality of streams and wetlands on NFS lands.

BAER reports are shared with interagency cooperators who work with downstream private home and land owners to prepare for potential post-fire flooding and debris flow impacts. Homes or businesses that could be impacted by flooding from federal land that resulted from wildfires may be eligible for flood insurance coverage from the National Flood Insurance Program (NFIP). Information about NFIP is available through FEMA at www.fema.gov/national-flood-insurance-program or www.fema.gov/wildfires-you-need-flood-insurance. Other flood preparedness information is available at www.ready.gov/floods at www.floodsmart.gov/.

SPECIAL NOTE: Everyone near and downstream from the burned areas should remain alert and stay updated on weather conditions that may result in heavy rains over the burn scars. Flash flooding may occur quickly during heavy rain events-be prepared to take action. Current weather and emergency notifications can be found at the National Weather Service website: www.weather.gov/lox/.

Ranch2 Post-Fire BAER Assessment information is available at: https://inciweb.nwcg.gov/incident/7114/.

Lake Post-Fire BAER Assessment information is available at: https://inciweb.nwcg.gov/incident/7115/.

THREE PHASES OF WILDFIRE RECOVERY

There are three phases of recovery following wildfires on federal lands:

• Fire Suppression Repair

• Emergency Stabilization-Burned Area Emergency Response (BAER)

• Long-Term Recovery and Restoration

• Fire Suppression Repair is a series of immediate post-fire actions taken to repair damages and minimize potential soil erosion and impacts resulting from fire suppression activities and usually begins before the fire is contained, and before the demobilization of an Incident Management Team. This work repairs the hand and dozer fire lines, roads, trails, staging areas, safety zones, and drop points used during fire suppression efforts.

• Emergency Stabilization-Burned Area Emergency Response (BAER) is a rapid assessment of burned watersheds by a BAER team to identify imminent post-wildfire threats to human life and safety, property, and critical natural or cultural resources on National Forest System lands and take immediate actions to implement emergency stabilization measures before the first post-fire damaging events. Fires result in loss of vegetation, exposure of soil to erosion, and increased water runoff that may lead to flooding, increased sediment, debris flows, and damage to critical natural and cultural resources. BAER actions such as: mulching, seeding, installation of erosion and water run-off control structures, temporary barriers to protect recovering areas, and installation of warning signs may be implemented. BAER work may also replace safety related facilities; remove safety hazards; prevent permanent loss of habitat for threatened and endangered species; prevent the spread of noxious weeds, and protect critical cultural resources.

• Long-Term Recovery and Restoration utilizes non-emergency actions to improve fire-damaged lands that are unlikely to recover naturally and to repair or replace facilities damaged by the fire that are not critical to life and safety. This phase may include restoring burned habitat, reforestation, other planting or seeding, monitoring fire effects, replacing burned fences, interpreting cultural sites, treating noxious weed infestations, and installing interpretive signs.

Ranch2 Post-Fire BAER 2500-8 Assessment Report Released

The Angeles National Forest received funding for emergency stabilization measures on Forest Service System lands burned by the Ranch2 Fire.  The emergency treatments and activities are designed to decreased possible impacts to values-at-risk from the Ranch2 burned area such as: life and safety, property, critical natural resources and cultural resources.  NOTE: Attached below as “Related Information” is a PDF document called “Ranch2 BAER 2500-8 Report_PUBLIC”.

BAER KEY MESSAGES PREPARING FOR RAIN

While many wildfires cause minimal damage to the land and pose few threats to the land or people downstream, some fires cause damage that requires special efforts to manage unacceptable risks afterwards.

Summer thunderstorms and other rain events in the mountains can result in high runoff and flash flooding.

Wildfire increases the potential for post fire flooding, soil erosion, and debris flows that could impact campgrounds, fishing areas, homes, structures, roads, and other infrastructure within, adjacent to, and downstream from the burned areas.

Post-fire, watershed conditions will naturally receive and transport water and sediment differently than during pre-fire conditions.

The public and communities adjacent to and downstream from burned areas should expect increased flooding and debris transport during smaller rain events than would normally cause this.

The potential for increased runoff and debris flows are not just a one-year concern.

We need to recognize the threat potential of flash floods and debris flows may exist for the next 3-5 monsoon and winter seasons, depending on the intensity of these storms.

For life and safety concerns, California National Forest closures may need to be implemented prior to forecast rain events until the burned area fully recovers.

Residents and visitors should remain alert to weather events and plan ahead when travelling along roads downstream from the burned areas of recent wildfires.

Forest Service Burned Area Emergency Response (BAER) teams have been working on California’s National Forests to assess the condition of the watersheds on federal land that burned this summer and fall.

The BAER assessment team identifies potential threats to critical values-at-risk and recommends emergency stabilization response actions that are implemented on federal lands to reduce potential post-fire risks.

BAER critical values that may be considered at-risk on National Forest System (NFS) lands are:

• Human life and safety.

• Property on Forest Service lands such as buildings, water systems and infrastructure, road and trail prisms.

• Natural Resources on Forest Service lands such as water, soil productivity and hydrologic function, areas where invasive species or noxious weeds may impact native or naturalized communities and may include critical habitat or suitable occupied habitat for federally listed threatened or endangered species.

• Cultural and Heritage Resources such as pre-historic and historic properties and sites on Forest Service lands.

For values and resources potentially impacted off NFS lands, one of the most effective BAER strategies is interagency coordination with other responsible agencies, entities, and local cooperators who assist affected businesses, homes, and landowners prepare for rain events. 

While multi-agency efforts are being taken to reduce the risks to life and safety downstream from the burned area, residents in the area should develop individual plans to protect themselves and their property. 

The Forest Service and Natural Resources Conservation Service (NRCS) work together and coordinate with other federal, state and local agencies, and counties that assist private landowners in preparing for increased run-off and potential flooding and debris flows.

NRCS works with local sponsors to prepare damage survey reports for eligible sites on private lands adjacent to and downstream from affected areas.  NRCS uses these reports, along with the BAER team’s assessment report, to develop emergency measures to reduce the impacts from potential increased water and debris flows, and assist sponsors to implement recommended emergency measures (www.nrcs.usda.gov/Internet/FSE_DOCUMENTS/stelprdb1045263.pdf).

Many local county offices of emergency management promote preparedness through emergency services programs to assist the public to prepare for, respond appropriately to, and quickly recover from natural emergencies that may impact county residents and visitors. Please check your local county website for emergency preparedness for potential National Weather Service flood warnings.

Homes or businesses that could be impacted by flooding from federal land that resulted from wildfires may be eligible for flood insurance coverage from the National Flood Insurance Program (NFIP). Information about NFIP is available through FEMA at www.floodsmart.gov/, or www.floodsmart.gov/flood-insurance/why. Other flood preparedness information is available at www.ready.gov/floods.

SAFETY MESSAGE: Everyone near and downstream from the burned areas should remain alert and stay updated on weather conditions that may result in heavy rains over the burn scars. Flash flooding may occur quickly during heavy rain events be prepared to take action. Current weather and emergency notifications can be found at the National Weather Service website: www.weather.gov/.

Emergency Assessment of Ranch2 Post-Fire Debris Flow Hazards

The Forest Service (USFS) Burned Area Emergency Response (BAER) assessment team coordinated early with US Geological Survey (USGS) staff during its evaluation of the Ranch2 Fire burned area to strategically assess potential post-fire impacts to the watersheds and predicted debris flow response during damaging storm events.

From the USGS website found at https://landslides.usgs.gov/hazards/postfire_debrisflow/:

“Wildfire can significantly alter the hydrologic response of a watershed to the extent that even modest rainstorms can produce dangerous flash floods and debris flows. The USGS conducts post-fire debris-flow hazard assessments for select fires in the Western U.S.  We use geospatial data related to basin morphometry, burn severity, soil properties, and rainfall characteristics to estimate the probability and volume of debris flows that may occur in response to a design storm.”

USGS used the BAER team’s soil burn severity analysis of the area burned by the Ranch2 Fire to estimate post-fire debris-flow hazards, including the likelihood of debris flow (in %), potential volume of debris flow, and combined relative debris flow hazard. These predictions are made at the scale of the drainage basin, and at the scale of the individual stream segment. The USGS Post-Fire Debris Flow Hazard Assessment estimates convey these hazards for the Ranch2 burn area. 

The online interactive map is posted at (click on the button at the top right corner of the map to show different predictions according to storm estimates):

https://landslides.usgs.gov/hazards/postfire_debrisflow/detail.php?objectid=296

PREPARING FOR RAINSTORMS