Observed National Fire Danger Rating System indexes

Updated 13:00 2017-04-27

**Local agency personnel should contact MIFC Fire Intelligence if errors or omissions are observed.**

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 12 70 15 15 16 19 22 7G1P3 3 10 16 31 5 High
7L1P3 0 1 0 1 1 Low
7Q1P3 3 28 19 54 3 Moderate
Badoura 4 70 15 15 16 19 20 7G1P3 1 3 18 20 5 High
7J1P3 1 5 63 42 2 Low
7L1P3 0 1 0 1 1 Low
7Q1P3 2 10 19 34 3 Moderate
Baudette 10 70 6 6 8 17 18 7G1P3 23 12 30 45 5 Very High
7J1P3 23 17 123 101 5 Very High
7L1P3 25 83 4 42 3 Moderate
7Q1P3 26 28 41 77 5 Very High
Bemidji 13 70 15 15 16 20 19 7G1P3 3 12 20 37 5 High
7L1P3 0 1 0 1 1 Low
7Q1P3 3 31 19 57 3 Moderate
Bigstone 14 70 15 15 16 20 20 7G1P3 3 13 17 36 5 High
7L1P3 0 1 0 1 1 Low
Brainerd 11 70 15 15 16 19 20 7E1P3 3 11 10 26 3 Moderate
7G1P3 2 9 18 32 5 High
7L1P3 0 1 0 1 1 Low
7Q1P3 3 26 19 52 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 10 70 15 15 16 22 23 7G1P3 2 8 11 24 5 High
7J1P3 2 11 49 54 2 Low
7L1P3 0 0 0 0 1 Low
7Q1P3 3 23 16 46 2 Low
Carlos Avery 0 75 23 14 15 21 23 7G1P3 1 2 13 13 5 High
7L1P3 0 2 0 3 1 Low
7N1P3 1 5 10 18 2 Low
7Q1P3 1 4 19 21 3 Moderate
Cass Lake 6 70 12 12 14 23 23 7C1P3 4 7 6 17 5 High
7G1P3 4 5 12 21 1 Low
7N1P3 4 33 12 48 5 High
7Q1P3 5 15 22 43 2 Low
Cutfoot 3 70 11 11 12 19 22 7C1P3 5 4 8 15 5 High
7G1P3 5 3 18 19 1 Low
7N1P3 4 17 15 38 3 Moderate
7Q1P3 5 9 28 38 2 Low
Detroit Lakes 14 70 15 15 16 19 19 7G1P3 3 12 20 38 5 High
7L1P3 0 0 0 0 1 Low
7Q1P3 3 33 19 58 3 Moderate
Effie 12 70 11 11 13 18 19 7G1P3 7 12 24 40 5 High
7L1P3 6 48 1 19 2 Low
7Q1P3 8 31 28 67 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
Ely 9 70 13 13 15 23 25 7G1P3 4 8 9 21 3 Moderate
7I1P3 3 16 86 83 2 Low
7Q1P3 4 22 19 49 3 Moderate
Fernberg 12 70 16 16 17 19 19 7G1P3 1 10 19 33 3 Moderate
7H1P3 1 2 4 9 2 Low
7Q1P3 2 25 16 47 3 Moderate
7I1P2 1 18 99 95 3 Moderate
Grand Portage 7 70 23 23 23 22 27 7G1P3 0 2 1 3 1 Low
7I1P3 0 4 17 20 1 Low
7Q1P3 0 2 3 8 1 Low
Hibbing 11 70 12 12 14 22 23 7G1P3 6 10 13 29 5 High
7J1P3 6 14 64 68 3 Moderate
7L1P3 5 39 1 16 2 Low
7Q1P3 7 28 23 58 3 Moderate
Hill City 9 70 14 14 15 18 21 7G1P3 3 8 18 29 0
7L1P3 1 7 0 5 1 Low
7N1P3 3 51 11 55 3 Moderate
7Q1P3 4 22 22 52 3 Moderate
Itasca 9 70 14 14 16 21 22 7G1P3 2 8 13 25 5 High
7L1P3 0 2 0 2 1 Low
7Q1P3 3 21 18 46 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
Kelliher 8 70 13 13 14 20 18 7G1P3 3 7 23 31 5 High
7L1P3 2 18 1 9 1 Low
7Q1P3 4 20 23 51 3 Moderate
Kittson 10 70 13 13 15 21 19 7E1P3 5 11 11 27 3 Moderate
7G1P3 4 9 21 33 5 High
7L1P3 2 18 1 9 1 Low
7Q1P3 5 25 22 55 3 Moderate
Litchfield 14 70 15 15 16 21 22 7G1P3 3 12 12 30 5 High
7L1P3 0 0 0 0 1 Low
7N1P3 3 84 8 62 3 Moderate
Littlefork 11 70 12 12 14 21 23 7E1P3 6 12 12 30 3 Moderate
7G1P3 5 10 15 30 5 High
7L1P3 4 31 1 14 2 Low
7Q1P3 6 27 23 58 3 Moderate
Meander USFS 5 70 13 13 14 19 22 7G1P3 3 4 17 22 3 Moderate
7I1P3 3 9 117 75 2 Low
7Q1P3 4 13 23 41 3 Moderate
MN Valley 12 70 16 16 17 22 23 7E1P3 3 12 9 26 3 Moderate
7G1P3 2 10 10 26 5 High
7N1P3 2 68 8 54 3 Moderate
7Q1P3 2 27 14 46 2 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
Moose Lake 11 70 14 14 16 23 25 7E1P3 4 12 10 27 3 Moderate
7G1P3 3 10 9 23 5 High
7L1P3 1 5 0 3 1 Low
7Q1P3 4 26 17 50 3 Moderate
Mora 13 70 15 15 16 22 24 7G1P3 3 11 9 26 5 High
7L1P3 0 0 0 0 1 Low
7Q1P3 3 30 16 51 2 Low
Orr 10 70 12 12 13 18 21 7E1P3 7 11 13 30 3 Moderate
7G1P3 6 9 20 33 5 High
7L1P3 5 45 1 18 2 Low
7Q1P3 7 25 27 60 3 Moderate
Redstn 13 70 20 20 20 21 22 7G1P3 0 8 11 23 5 High
7L1P3 0 0 0 0 1 Low
Rice Lake 10 70 15 15 17 25 25 7G1P3 2 8 6 18 5 High
7L1P3 0 1 0 1 1 Low
7N1P3 3 57 9 52 3 Moderate
7Q1P3 3 23 14 43 2 Low
Roseau 9 70 14 14 15 18 17 7E1P3 3 9 10 24 2 Low
7G1P3 3 8 24 33 5 High
7L1P3 0 3 0 3 1 Low
7Q1P3 3 21 22 51 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
Saginaw 7 70 14 14 15 23 23 7E1P3 3 7 10 21 2 Low
7G1P3 3 6 11 21 5 High
7L1P3 1 11 0 6 1 Low
7Q1P3 3 17 19 43 3 Moderate
Seagull Lake 7 70 15 15 17 24 29 7G1P3 1 6 1 7 1 Low
7I1P3 1 11 52 57 2 Low
7Q1P3 2 16 13 35 3 Moderate
Sherburne 10 70 15 15 16 21 23 7E1P3 3 10 10 25 3 Moderate
7G1P3 2 8 12 25 5 High
7N1P3 3 57 9 54 3 Moderate
7Q1P3 3 23 17 48 3 Moderate
Skibo 6 70 16 16 17 20 23 7G1P3 1 5 12 19 3 Moderate
7I1P3 1 10 84 65 2 Low
7Q1P3 1 13 16 35 3 Moderate
St. Croix 8 70 14 14 16 22 23 7G1P3 2 7 11 22 2 Low
7J1P3 2 9 52 51 2 Low
7L1P3 0 2 0 2 1 Low
7Q1P3 3 19 18 44 3 Moderate
Voyageurs/Kabnam 7 70 12 12 13 20 22 7G1P3 5 6 17 26 3 Moderate
7Q1P3 6 18 25 50 4 Moderate
7R1P3 6 2 10 11 1 Low
7U1P3 5 4 12 18 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)