Observed National Fire Danger Rating System indexes

Updated 13:00 2016-08-24

**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 12 147 134 7 9 17 19 7G1P3 19 8 26 34 5 High
7L1P3 27 91 3 39 4 High
7Q1P3 21 18 31 55 3 Moderate
Badoura 11 141 103 7 9 15 18 7G1P3 22 8 29 37 5 Very High
7J1P3 27 18 125 104 3 Moderate
7L1P3 15 25 1 13 2 Low
7Q1P3 18 11 29 43 3 Moderate
Baudette 10 132 87 7 8 15 17 7G1P3 24 8 33 39 5 Very High
7J1P3 28 16 131 102 5 Very High
7L1P3 21 38 2 22 2 Moderate
7Q1P3 22 14 32 50 4 High
Bemidji 9 70 8 8 9 15 18 7G1P3 19 9 32 41 5 High
7L1P3 21 65 3 33 3 Moderate
7Q1P3 22 24 39 71 4 High
Bigstone 12 154 113 7 9 16 20 7G1P3 21 8 25 35 5 Very High
7L1P3 5 3 0 4 1 Low
Brainerd 16 165 145 5 7 15 21 7E1P3 38 11 17 33 3 Moderate
7G1P3 35 11 25 40 5 Very High
7L1P3 6 2 0 3 1 Low
7Q1P3 22 9 28 38 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 12 158 124 6 8 16 20 7G1P3 23 8 25 34 5 Very High
7J1P3 31 20 120 108 3 Moderate
7L1P3 5 2 0 3 1 Low
7Q1P3 14 6 26 30 3 Moderate
Carlos Avery 7 174 132 7 9 19 22 7G1P3 16 4 19 22 5 High
7L1P3 4 2 0 3 1 Low
7N1P3 15 20 15 42 3 Moderate
7Q1P3 10 3 22 21 3 Moderate
Cass Lake 8 142 104 8 10 15 19 7C1P3 8 2 5 9 4 Moderate
7G1P3 13 5 28 30 2 Low
7N1P3 13 28 15 48 5 High
7Q1P3 10 6 26 31 2 Low
Cutfoot 5 154 119 7 9 17 20 7C1P3 5 1 4 5 3 Moderate
7G1P3 12 3 24 22 1 Low
7N1P3 11 16 15 37 3 Moderate
7Q1P3 7 2 23 19 1 Low
Detroit Lakes 13 148 102 9 10 15 19 7G1P3 15 9 27 38 5 High
7L1P3 18 81 2 33 3 Moderate
7Q1P3 15 17 30 53 3 Moderate
Effie 12 142 96 6 8 15 19 7G1P3 30 10 30 41 5 Very High
7L1P3 24 39 2 21 2 Moderate
7Q1P3 26 15 32 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
Ely 11 138 119 10 11 15 18 7G1P3 11 7 28 33 3 Moderate
7I1P3 14 22 180 136 3 Moderate
7Q1P3 7 5 22 27 3 Moderate
Fernberg 4 135 117 35 35 15 18 7G1P3 0 0 11 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 6 171 196 9 11 19 22 7G1P3 8 3 18 18 3 Moderate
7I1P3 12 12 145 95 2 Low
7Q1P3 5 2 19 17 2 Low
Hibbing 16 141 105 6 8 16 18 7G1P3 37 14 30 48 5 Very High
7J1P3 45 29 132 134 4 High
7L1P3 22 29 1 16 2 Moderate
7Q1P3 31 19 31 57 3 Moderate
Hill City 10 140 106 5 7 15 18 7G1P3 28 8 31 37 0
7L1P3 21 25 1 15 2 Moderate
7N1P3 27 41 19 65 3 Moderate
7Q1P3 25 12 32 46 4 High
Isabella 5 162 205 14 14 17 21 7G1P3 2 2 18 16 3 Moderate
7I1P3 3 9 123 76 2 Low
7Q1P3 1 2 15 15 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 6 142 104 8 9 15 19 7G1P3 13 4 29 27 5 High
7L1P3 8 9 1 7 1 Low
7Q1P3 11 5 27 29 3 Moderate
Kelliher 11 144 94 7 9 16 19 7G1P3 21 8 28 37 5 Very High
7L1P3 18 37 1 19 2 Low
7Q1P3 18 11 28 43 3 Moderate
Kittson 13 133 97 7 8 15 18 7E1P3 29 11 17 33 3 Moderate
7G1P3 26 11 31 43 5 Very High
7L1P3 20 36 1 18 2 Low
7Q1P3 23 16 31 53 3 Moderate
Litchfield 12 170 150 9 11 18 22 7G1P3 13 7 19 28 5 High
7L1P3 2 2 0 2 1 Low
7N1P3 13 34 13 49 3 Moderate
Littlefork 7 143 96 6 8 15 19 7E1P3 21 5 18 24 3 Moderate
7G1P3 20 5 29 30 5 Very High
7L1P3 16 20 2 15 2 Low
7Q1P3 18 8 31 38 3 Moderate
Meander USFS 5 138 97 9 10 16 18 7G1P3 9 3 28 25 3 Moderate
7I1P3 11 11 185 100 2 Low
7Q1P3 7 4 25 25 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
MN Valley 9 188 136 35 35 20 24 7E1P3 0 0 0 0 1 Low
7G1P3 0 0 0 0 1 Low
7N1P3 0 0 0 0 1 Low
7Q1P3 0 0 0 0 1 Low
Moose Lake 12 161 132 6 8 17 21 7E1P3 31 8 16 28 3 Moderate
7G1P3 28 8 24 34 5 Very High
7L1P3 6 2 0 3 1 Low
7Q1P3 19 7 27 34 3 Moderate
Mora 11 167 137 7 9 17 21 7G1P3 21 7 22 30 5 Very High
7L1P3 4 2 0 3 1 Low
7Q1P3 13 5 24 27 3 Moderate
Orr 6 143 97 6 8 15 19 7E1P3 20 4 18 22 2 Low
7G1P3 19 4 30 28 5 High
7L1P3 15 16 2 13 2 Low
7Q1P3 17 7 31 36 3 Moderate
Redstn 7 154 115 10 11 17 20 7G1P3 8 4 22 24 5 High
7L1P3 11 41 2 22 3 Moderate
Rice Lake 12 158 133 6 8 16 20 7G1P3 27 8 25 34 5 Very High
7L1P3 5 2 0 3 1 Low
7N1P3 27 45 18 65 3 Moderate
7Q1P3 18 7 26 33 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 14 125 82 7 9 15 17 7E1P3 31 14 18 37 3 Moderate
7G1P3 27 13 34 49 5 Very High
7L1P3 22 51 2 25 2 Moderate
7Q1P3 25 21 33 61 3 Moderate
Saginaw 5 146 107 5 7 15 19 7E1P3 21 3 18 20 2 Moderate
7G1P3 20 4 30 26 5 Very High
7L1P3 13 10 1 9 1 Low
7Q1P3 18 6 32 33 3 Moderate
Seagull Lake 11 143 133 9 10 17 19 7G1P3 14 7 26 32 4 Moderate
7I1P3 17 23 178 138 3 Moderate
7Q1P3 8 5 22 27 3 Moderate
Sherburne 9 151 116 8 9 15 20 7E1P3 15 5 14 22 3 Moderate
7G1P3 14 6 26 30 5 High
7N1P3 14 31 15 50 3 Moderate
7Q1P3 9 4 24 25 3 Moderate
Skibo 5 142 101 8 10 16 19 7G1P3 11 3 28 25 3 Moderate
7I1P3 13 11 192 104 3 Moderate
7Q1P3 8 4 26 26 3 Moderate
St. Croix 7 169 139 6 8 18 22 7G1P3 19 4 21 24 3 Moderate
7J1P3 27 12 112 83 3 Moderate
7L1P3 5 2 0 3 1 Low
7Q1P3 12 3 24 22 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 5 151 134 6 8 15 20 7G1P3 15 3 27 23 3 Moderate
7Q1P3 11 3 27 24 3 Moderate
7R1P3 10 0 7 4 1 Low
7U1P3 15 2 20 15 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)