Observed National Fire Danger Rating System indexes

Updated 13:00 2015-03-30

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
Agassiz 2 70 13 13 14 19 22 7G1P3 3 3 17 17 5 High
7L1P3 2 6 1 6 1 Low
7Q1P3 3 7 24 31 3 Moderate
Badoura 4 70 13 13 13 16 21 7G1P3 3 4 21 22 5 High
7J1P3 3 5 80 49 2 Low
7L1P3 2 13 1 8 1 Low
7Q1P3 4 11 26 40 3 Moderate
Baudette 5 70 10 10 12 17 23 7G1P3 7 5 18 23 5 High
7J1P3 7 7 84 56 3 Moderate
7L1P3 6 25 2 17 2 Low
7Q1P3 8 13 30 47 3 Moderate
Bemidji 5 70 18 18 17 15 21 7G1P3 0 4 17 20 5 High
7L1P3 0 0 0 0 1 Low
7Q1P3 0 7 15 25 2 Low
Bigstone 14 70 4 4 6 15 21 7G1P3 60 21 29 57 5 Very High
7L1P3 65 145 6 65 5 Very High
Brainerd 4 70 16 16 16 15 19 7E1P3 1 3 9 14 2 Low
7G1P3 1 3 22 22 5 High
7L1P3 0 0 0 0 1 Low
7Q1P3 1 9 19 32 3 Moderate
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
Camp Ripley/Little Falls 9 70 8 8 9 17 19 7G1P3 18 10 27 39 5 High
7J1P3 18 14 111 87 3 Moderate
7L1P3 19 66 3 33 3 Moderate
7Q1P3 21 24 37 69 4 High
Carlos Avery 8 70 11 11 11 14 19 7G1P3 8 7 28 35 5 High
7L1P3 8 45 1 21 3 Moderate
7N1P3 8 47 15 62 3 Moderate
7Q1P3 9 21 33 60 3 Moderate
Cass Lake 3 70 19 19 19 17 25 7C1P3 0 0 1 1 1 Low
7G1P3 0 2 9 12 1 Low
7N1P3 0 5 3 11 2 Low
7Q1P3 0 3 10 13 1 Low
Cutfoot 2 70 12 12 13 17 25 7C1P3 3 3 7 12 5 High
7G1P3 3 3 13 15 1 Low
7N1P3 3 12 13 30 3 Moderate
7Q1P3 3 7 25 32 2 Low
Detroit Lakes 8 70 9 9 10 17 20 7G1P3 12 8 24 34 5 High
7L1P3 13 53 2 27 3 Moderate
7Q1P3 14 21 34 62 4 Moderate
Effie 1 70 8 8 10 17 24 7G1P3 8 2 19 17 5 High
7L1P3 6 8 3 12 1 Low
7Q1P3 8 6 35 34 4 Moderate
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 5 70 35 35 35 29 32 7G1P3 0 0 0 0 1 Low
7I1P3 0 0 0 0 1 Low
7Q1P3 0 0 0 0 1 Low
Fernberg 5 70 35 35 35 29 31 7G1P3 0 0 0 0 1 Low
7H1P3 0 0 0 0 1 Low
7Q1P3 0 0 0 0 1 Low
7I1P2 0 0 0 0 1 Low
Grand Portage 6 70 5 5 7 16 21 7G1P3 25 7 27 34 4 High
7I1P3 26 17 207 127 3 Moderate
7Q1P3 28 18 43 64 5 Very High
Hibbing 6 70 8 8 9 15 23 7G1P3 14 6 21 28 5 High
7J1P3 14 9 106 72 3 Moderate
7L1P3 14 38 3 26 3 Moderate
7Q1P3 16 17 37 58 4 Moderate
Hill City 3 70 15 15 15 16 21 7G1P3 1 3 19 19 0
7L1P3 0 1 0 1 1 Low
7N1P3 1 16 10 30 2 Low
7Q1P3 2 8 22 33 3 Moderate
Isabella 4 70 35 35 35 29 31 7G1P3 0 0 0 0 1 Low
7I1P3 0 0 0 0 1 Low
7Q1P3 0 0 0 0 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
Itasca 4 70 24 24 23 18 22 7G1P3 0 1 10 9 5 High
7L1P3 0 0 0 0 1 Low
7Q1P3 0 1 5 6 1 Low
Kelliher 3 70 11 11 12 16 23 7G1P3 5 3 18 20 5 High
7L1P3 4 13 1 11 2 Low
7Q1P3 6 9 29 39 3 Moderate
Kittson 6 70 12 12 14 19 22 7E1P3 5 6 12 21 2 Low
7G1P3 4 5 16 23 5 High
7L1P3 4 22 1 11 1 Low
7Q1P3 5 15 24 45 3 Moderate
Litchfield 8 70 7 7 8 14 20 7G1P3 21 9 29 38 5 Very High
7L1P3 22 59 3 34 4 High
7N1P3 21 52 21 75 3 Moderate
Littlefork 3 70 6 6 8 15 22 7E1P3 16 4 22 23 2 Low
7G1P3 14 4 25 25 5 High
7L1P3 12 18 4 21 2 Low
7Q1P3 16 10 41 48 5 High
Meander USFS 3 70 35 35 35 29 32 7G1P3 0 0 0 0 1 Low
7I1P3 0 0 0 0 1 Low
7Q1P3 0 0 0 0 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
MN Valley 7 70 8 8 9 13 18 7E1P3 15 8 19 30 3 Moderate
7G1P3 13 7 33 37 5 High
7N1P3 14 42 19 65 3 Moderate
7Q1P3 15 19 40 63 4 Moderate
Moose Lake 4 70 23 23 21 15 20 7E1P3 0 2 3 6 1 Low
7G1P3 0 1 16 13 5 High
7L1P3 0 0 0 0 1 Low
7Q1P3 0 2 8 10 1 Low
Mora 10 70 10 10 11 14 19 7G1P3 10 10 27 39 5 High
7L1P3 11 63 2 25 3 Moderate
7Q1P3 12 26 33 67 3 Moderate
Orr 4 70 6 6 8 14 20 7E1P3 18 5 22 26 3 Moderate
7G1P3 16 5 30 30 5 High
7L1P3 15 25 4 24 2 Low
7Q1P3 18 12 43 54 5 High
Redstn 19 70 3 3 6 14 20 7G1P3 73 32 32 73 5 Extreme
7L1P3 68 154 6 69 5 Extreme
Rice Lake 0 70 25 25 23 17 21 7G1P3 0 0 12 2 5 High
7L1P3 0 0 0 0 1 Low
7N1P3 0 0 0 0 1 Low
7Q1P3 0 0 5 1 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
Roseau 7 70 12 12 13 18 23 7E1P3 6 7 13 24 2 Low
7G1P3 5 6 15 24 5 High
7L1P3 4 27 1 13 1 Low
7Q1P3 6 18 25 49 3 Moderate
Saginaw 4 70 8 8 9 14 20 7E1P3 12 5 19 24 3 Moderate
7G1P3 10 4 27 27 5 High
7L1P3 10 23 3 20 2 Low
7Q1P3 12 12 38 50 4 Moderate
Seagull Lake 8 70 35 35 35 29 32 7G1P3 0 0 0 0 1 Low
7I1P3 0 0 0 0 1 Low
7Q1P3 0 0 0 0 1 Low
Sherburne 8 70 9 9 10 15 19 7E1P3 16 9 18 32 3 Moderate
7G1P3 13 8 27 36 5 High
7N1P3 14 49 18 68 3 Moderate
7Q1P3 15 21 36 64 4 Moderate
St. Croix 6 70 12 12 12 14 19 7G1P3 5 5 27 30 3 Moderate
7J1P3 5 8 95 62 3 Moderate
7L1P3 4 24 1 13 1 Low
7Q1P3 6 15 30 50 3 Moderate
Voyageurs/Kabnam 3 70 7 7 8 15 23 7G1P3 13 4 22 23 3 Moderate
7Q1P3 15 10 40 47 4 Moderate
7R1P3 16 1 16 11 1 Low
7U1P3 14 2 26 20 2 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)