Observed National Fire Danger Rating System indexes

Updated 13:00 2017-11-06

**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 11 70 12 12 14 22 21 7G1P3 5 10 17 32 5 High
7L1P3 4 36 1 15 2 Low
7Q1P3 7 28 23 58 3 Moderate
Badoura 6 70 9 9 12 23 23 7G1P3 8 6 14 23 5 High
7J1P3 8 8 74 58 2 Low
7L1P3 8 35 2 22 2 Low
7Q1P3 10 16 27 49 3 Moderate
Baudette 9 70 9 9 12 21 23 7G1P3 11 9 16 29 5 High
7J1P3 11 13 79 72 3 Moderate
7L1P3 12 61 2 28 3 Moderate
7Q1P3 13 24 29 61 3 Moderate
Bemidji 6 70 9 9 11 21 22 7G1P3 9 6 18 25 5 High
7L1P3 9 36 2 22 2 Low
7Q1P3 11 16 29 51 3 Moderate
Bigstone 3 151 14 14 16 21 20 7G1P3 1 2 19 17 5 High
7L1P3 0 3 0 2 1 Low
Brainerd 8 70 8 8 10 20 21 7E1P3 18 10 19 33 3 Moderate
7G1P3 15 8 21 33 5 High
7L1P3 16 56 3 31 3 Moderate
7Q1P3 17 22 34 63 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 4 70 11 11 13 22 22 7G1P3 4 4 15 20 5 High
7J1P3 4 6 69 46 2 Low
7L1P3 4 17 1 12 2 Low
7Q1P3 5 11 24 39 3 Moderate
Carlos Avery 4 196 10 10 12 22 25 7G1P3 6 3 12 15 5 High
7L1P3 6 21 2 16 3 Moderate
7N1P3 3 5 10 18 2 Low
7Q1P3 3 2 18 16 3 Moderate
Cass Lake 7 166 7 7 10 19 21 7C1P3 14 6 12 21 5 High
7G1P3 14 6 21 27 4 Moderate
7N1P3 11 21 15 42 2 Low
7Q1P3 12 8 27 37 2 Low
Cutfoot 2 189 9 9 12 22 24 7C1P3 4 2 9 11 5 High
7G1P3 5 2 13 14 3 Moderate
7N1P3 2 3 11 15 1 Low
7Q1P3 3 1 19 13 1 Low
Detroit Lakes 10 70 12 12 14 20 20 7G1P3 5 9 19 32 5 High
7L1P3 3 30 1 13 2 Low
7Q1P3 6 25 24 56 3 Moderate
Effie 11 70 8 8 10 20 22 7G1P3 17 12 18 36 5 High
7L1P3 19 86 3 37 3 Moderate
7Q1P3 20 30 32 71 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 14 200 8 8 11 23 26 7G1P3 15 11 11 27 2 Low
7I1P3 17 31 117 130 3 Moderate
7Q1P3 8 7 19 29 2 Low
Fernberg 11 193 150 11 13 23 24 7G1P3 5 5 10 19 2 Low
7H1P3 5 1 2 5 1 Low
7Q1P3 3 4 13 19 2 Low
7I1P2 7 21 103 103 3 Moderate
Grand Portage 7 70 8 8 11 24 30 7G1P3 13 7 3 12 2 Low
7I1P3 13 15 96 86 2 Low
7Q1P3 15 19 27 53 4 Moderate
Hibbing 12 70 9 9 12 24 25 7G1P3 15 13 10 28 5 High
7J1P3 14 17 68 78 3 Moderate
7L1P3 16 83 2 34 3 Moderate
7Q1P3 17 32 27 67 3 Moderate
Hill City 6 70 7 7 10 22 24 7G1P3 14 6 15 25 0
7L1P3 14 39 3 27 3 Moderate
7N1P3 14 37 19 61 3 Moderate
7Q1P3 16 17 32 54 4 Moderate
Isabella 6 197 13 13 15 23 25 7G1P3 3 4 9 15 1 Low
7I1P3 3 11 86 70 2 Low
7Q1P3 2 3 14 16 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
Itasca 7 70 8 8 10 17 21 7G1P3 13 7 24 32 5 High
7L1P3 14 46 3 28 3 Moderate
7Q1P3 16 19 36 61 4 Moderate
Kelliher 9 70 8 8 10 21 21 7G1P3 15 9 20 33 5 High
7L1P3 16 65 3 33 3 Moderate
7Q1P3 18 24 32 64 3 Moderate
Kittson 13 70 12 12 13 20 19 7E1P3 8 15 13 34 3 Moderate
7G1P3 7 13 21 39 5 High
7L1P3 5 39 1 16 2 Low
7Q1P3 8 33 25 66 3 Moderate
Litchfield 9 175 16 16 17 22 22 7G1P3 1 5 12 20 5 High
7L1P3 0 0 0 0 1 Low
7N1P3 0 11 5 19 1 Low
Littlefork 7 70 10 10 12 22 23 7E1P3 10 8 15 27 3 Moderate
7G1P3 9 7 15 25 5 High
7L1P3 9 42 2 23 2 Low
7Q1P3 10 18 27 52 3 Moderate
Meander USFS 0 195 150 14 16 23 24 7G1P3 1 1 8 8 1 Low
7I1P3 1 3 80 38 1 Low
7Q1P3 0 1 10 7 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 5 163 12 12 14 20 21 7E1P3 3 3 12 17 2 Low
7G1P3 3 3 18 20 5 High
7N1P3 1 6 8 18 1 Low
7Q1P3 2 3 17 18 3 Moderate
Moose Lake 7 70 7 7 10 21 24 7E1P3 19 8 19 31 3 Moderate
7G1P3 16 7 16 27 5 High
7L1P3 17 48 3 30 3 Moderate
7Q1P3 18 19 33 58 4 Moderate
Mora 8 182 11 11 13 21 23 7G1P3 6 5 14 22 5 High
7L1P3 7 44 1 20 3 Moderate
7Q1P3 3 4 18 21 3 Moderate
Orr 8 70 35 35 35 21 23 7E1P3 0 0 0 0 1 Low
7G1P3 0 0 0 0 1 Low
7L1P3 0 0 0 0 1 Low
7Q1P3 0 0 0 0 1 Low
Redstn 2 160 26 26 25 23 21 7G1P3 0 0 8 0 5 High
7L1P3 0 0 0 0 1 Low
Rice Lake 0 70 8 8 10 22 24 7G1P3 7 2 15 15 5 High
7L1P3 5 6 3 11 1 Low
7N1P3 5 6 18 25 2 Low
7Q1P3 7 4 31 28 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
Roseau 13 70 11 11 12 19 20 7E1P3 12 16 14 37 3 Moderate
7G1P3 10 13 22 41 5 High
7L1P3 9 60 1 24 2 Low
7Q1P3 11 34 29 71 3 Moderate
Saginaw 7 70 7 7 10 22 24 7E1P3 18 8 19 31 3 Moderate
7G1P3 15 7 15 26 5 High
7L1P3 16 48 3 30 3 Moderate
7Q1P3 18 19 32 58 3 Moderate
Seagull Lake 11 200 10 10 13 24 30 7G1P3 9 8 2 12 1 Low
7I1P3 11 22 84 96 2 Low
7Q1P3 5 5 15 22 2 Low
Sherburne 7 188 11 11 14 23 24 7E1P3 5 5 12 20 3 Moderate
7G1P3 4 5 12 19 5 High
7N1P3 2 8 8 21 1 Low
7Q1P3 3 3 16 19 2 Low
Skibo 7 200 35 35 35 24 26 7G1P3 0 0 0 0 1 Low
7I1P3 0 0 0 0 1 Low
7Q1P3 0 0 0 0 1 Low
St. Croix 6 70 9 9 11 23 24 7G1P3 10 6 12 22 2 Low
7J1P3 10 9 74 59 2 Low
7L1P3 11 36 2 23 2 Low
7Q1P3 12 16 28 50 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
Voyageurs/Kabnam 6 70 11 11 13 21 24 7G1P3 5 6 13 21 2 Low
7Q1P3 6 16 25 46 4 Moderate
7R1P3 7 2 10 11 1 Low
7U1P3 6 3 12 17 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)