Forecast National Fire Danger Rating System indexes

Forecast for 13:00 2014-04-24

Station WS Woody FM Herb. FM 1-Hr FM 10-Hr FM 100-Hr FM 1000-Hr FM MSGC IC SC ERC BI SL Rating
Bigstone 17 70 9 9 14 16 16 7G1P3 20 19 34 59 5 Very High
7L1P3 16 78 2 31 3 Moderate
Brainerd 5 70 20 20 25 23 25 7E1P3 0 3 3 9 1 Low
7G1P3 0 3 3 8 5 High
7L1P3 0 0 0 0 1 Low
7Q1P3 0 3 3 9 1 Low
Camp Ripley/Little Falls 4 70 16 16 26 25 27 7G1P3 1 3 1 5 5 High
7J1P3 1 4 14 20 1 Low
7L1P3 0 0 0 0 1 Low
7Q1P3 1 4 4 10 1 Low
Carlos Avery 6 70 16 16 25 23 24 7G1P3 1 5 7 14 5 High
7L1P3 0 0 0 0 1 Low
7N1P3 1 20 3 20 2 Low
7Q1P3 1 5 6 15 1 Low
Cass Lake 7 70 23 23 26 22 26 7C1P3 0 0 0 0 1 Low
7G1P3 0 2 1 3 1 Low
7N1P3 0 5 0 4 1 Low
7Q1P3 0 2 2 6 1 Low
Station WS Woody FM Herb. FM 1-Hr FM 10-Hr FM 100-Hr FM 1000-Hr FM MSGC IC SC ERC BI SL Rating
Ely 11 70 19 19 23 29 33 7G1P3 0 0 0 0 1 Low
7I1P3 0 0 0 0 1 Low
7Q1P3 0 0 0 0 1 Low
Hibbing 10 70 21 21 24 20 26 7G1P3 0 5 4 11 5 High
7J1P3 0 6 17 25 1 Low
7L1P3 0 0 0 0 1 Low
7Q1P3 0 5 4 13 1 Low
Litchfield 7 70 14 14 28 25 24 7G1P3 3 6 5 14 5 High
7L1P3 1 5 0 4 1 Low
7N1P3 3 33 4 27 2 Low
MN Valley 6 70 16 16 27 25 26 7E1P3 1 5 6 14 2 Low
7G1P3 1 4 0 4 5 High
7N1P3 1 12 2 12 1 Low
7Q1P3 1 5 3 10 1 Low
Mora 5 70 17 17 25 25 26 7G1P3 0 4 1 6 5 High
7L1P3 0 0 0 0 1 Low
7Q1P3 0 4 4 11 1 Low
Rice Lake 7 70 22 22 25 22 24 7G1P3 0 3 4 9 5 High
7L1P3 0 0 0 0 1 Low
7N1P3 0 8 1 7 1 Low
7Q1P3 0 3 3 8 1 Low
Station WS Woody FM Herb. FM 1-Hr FM 10-Hr FM 100-Hr FM 1000-Hr FM MSGC IC SC ERC BI SL Rating
Seagull Lake 12 70 18 18 20 30 34 7G1P3 0 0 0 0 1 Low
7I1P3 0 0 0 0 1 Low
7Q1P3 0 0 3 0 1 Low
Sherburne 4 70 17 17 26 23 23 7E1P3 1 3 6 12 2 Low
7G1P3 1 3 6 12 5 High
7N1P3 0 8 2 10 1 Low
7Q1P3 0 4 5 11 1 Low
St. Croix 6 70 20 20 24 24 28 7G1P3 0 3 0 1 1 Low
7J1P3 0 4 9 16 1 Low
7L1P3 0 0 0 0 1 Low
7Q1P3 0 4 3 9 1 Low

Definitions

MSGC

Indicates the fuel model, slope class, grass type, and climate class. For example, 7L1P3 indicates the 1978 version of the fuel model L, slope class 1, perennial grass, and climate class 3.

Wind Speed (WS)

Wind speed measured at a height of 20 feet, averaged over a 10-minute period.

Woody Fuel Moisture (Woody FM)

Fuel moisture in live woody vegetation.

Herbaceous Fuel Moisture (Herb. FM)

Fuel moisture in live herbaceous vegetation.

Ignition Component (IC)

Ignition Component relates the probability that a fire requiring suppression action will result if a firebrand is introduced into a fine fuel complex. The ignition component can range from 0 when conditions are cool and damp, to 100 on days when the weather is dry and windy. Theoretically, on a day when the ignition component registers a 60, approximately 60% of all fire brands that come into contact with wildland fuels will require suppression action.

Spread Component (SC)

Spread Component (SC) is the forward rate of spread at the head of the fire in feet per minute in a given fuel model. The inputs required to calculate the SC are wind speed, slope, fine fuel moisture (including the effects of green herbaceous plants), and the moisture content of the foliage and twigs of living, woody plants.

Energy Release Component (ERC)

Energy Release Component is a calculated field which provides a relative index of the amount of heat (in BTUs) per unit area (ft2) within the flaming front at the head of a fire. The ERC is very sensitive to fuel model characteristics - loading, compaction, particle size, heat of combustion and mineral content. The condition of the larger fuels has a greater influence on the ERC than the finer fuels. The scale for ERC values is open ended.

Burning Index (BI)

Burning Index relates the potential amount of effort needed to contain a single fire in a particular fuel type. Dividing Burning Index by 10 gives an approximate estimate of flame length in feet at the head of a fire. Burning Index is fuel model dependent.

1/10/100/1000-Hour Fuel Moisture

Dead fuel moisture content in fuel that takes the given number of hours to lose or gain 63% of the difference between the dead fuel itself and the surrounding atmosphere.

Staffing Level (SL)