GFMC: Forest Fires in the United States

Forest Fires in the United States

02 Jul 2003


Latest Satellite Images:

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DavisFire in Oregon
In eastern Oregon, the Davis Fire has scorched 40,000 acres as of 01 July 2003.The cause of this fire is still under investigation, and the fire is about 40percent contained. This ModerateResolution Imaging Spectroradiometer (MODIS) image of Oregon (top) andCalifornia (bottom) shows actively burning areas of the Davis Fire marked withred dots in the image center. Burning in the Deschutes National Forest, the fireis threatening several residences and has caused several rural subdivisions tobe put on evacuation alert.

Source: NASA/EO

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Heatsignatures (red) and smoke plumes (light blue haze) are visible from firesburning in Oregon. The Davis Fire has charred 14,000 acres in Deschutes NationalForest in Oregon. This information is from the National Interagency FireCenter´s Incident Management Situation Report from 01 July 2003.

Source: NOAA/ NESDIS

More current Information about the fire situation inUnited States from June 26, See: The National Incident Management Situation Report by NICC

The National Interagency Fire Center (NIFC) based in Boise (Idaho) provides key information on current wildland fire situations, related information and background materials. The following information is updated daily and can be accessed directly:

  • State-by-State daily and year-to-date summary of fire activities
    http://www.nifc.gov/fireinfo/nfn.html

  • Year-to-date State-by-State total number of wildland fires and area burned (table)
    http://www.nifc.gov/fireinfo/nfnmap.html

  • Daily locations of large fires (map)
    http://www.nifc.gov/fireinfo/firemap.html

TheNational Interagency Coordination Center (NICC)  provides daily situation reports. These reports include:

  • Incident Management Situation Reports (fires and area burned reported to NICC). The files include current, previous and archived reports

  • Prescribed Fire and Wildland Fire Use (year-to-date fires and area burned reported to NICC, posted weekly on Monday mornings)
    http://www.nifc.gov/news/RXWFUYTD.htm

Archived NICC Incident Management Reports (recent daily reports and archived daily reports 1994-1997) are provided by the Center for International Disaster Information (CIDI)

The National Wildfire Information Interagency provides detailed information on each individual state with active fires.

Fire Weather & Fire Danger Information
The Wildland Fire Assessment System (WFAS) is a contribution of “The Fire Behavior Research Work Unit”, Missoula (Montana USA). The broad area component of the Wildland Fire Assessment System (WFAS) generates maps of selected fire weather and fire danger components.

Fire Danger (Potential) is a normalized adjective rating class across different fuel models and station locations. It is based on information provided by local station managers about the primary fuel model, fire danger index selected to reflect staffing level, and climatological class breakpoints. Low danger (Class 1) is green and extreme potential (Class 5) is red.

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fire danger (observed time) fire danger (forecasted)

Latest fire dangermap for the United States (observation time) and forecasted fire danger map forthe subsquent day
(Source: WAFS)

Dead fuel moisture responds solely to ambient environmental conditions and is critical in determining fire potential. Dead fuel moistures are classed by timelag.

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10-HR Fuel Moisture 100-HR Fuel Moisture 1000-HR Fuel Moisture

Latest fuel moisture maps for conterminousUS
(Source: WAFS)

The Keetch-Byram Drought Index (KBDI) is a soil/duffdrought index. Factors in the index are maximum daily temperature, dailyprecipitation, antecedent precipitation, and annual precipitation. The indexranges from 0 (no drought) to 800 (extreme drought) (details).

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Latest Keetch-Byram drought index map for conterminousUS
(Source: WAFS)

For more Satellite Images displaying recent fires in the US, please visit NASA´SEarth Observatory at:
http://earthobservatory.nasa.gov/NaturalHazards/natural_hazards_v2.php3?topic=fire. EarthObservatory provides MODIS and Landsat Scenes of fires allover the planet.

For more information on the recent fire situation in the US see also: Recent Media Highlights on Fire, Policies, and Politics.

Long-range weather forecasts
National Weather Service
Long-range, 30-day weather forecasts are predicting above-normal temperatures for the southern tier of states from southern California to Florida and throughout the Midwest (see 30 and 90-day forecast maps).

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30 and 90-day temperature and precipitation forecast maps(June to August 2003)
(Source: National Weather Service)

For further information see: Wildfire Season Forecast of the Florida Division of Forestry
For further information you may also see to the U.S. Drought Monitor.

For background information on the Southern Area see the Edited Version of the Southern Area Intelligence Briefing Paper for 22 April 2001.


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