Forecast Canadian fire danger indexes

Forecast for 13:00 2017-08-21

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

Station °F RH P24I Wind FFMC DMC DC ISI BUI FWI
Agassiz 74 40 0.0 10 90.5 78.0 588.3 10.4 117.2 34.8
Albert Lea 77 70 0.21 5 63.4 9.6 203.1 0.7 17.2 0.6
Badoura 74 45 0.0 6 87.9 15.0 200.6 5.1 25.2 9.1
Baudette 74 40 0.0 10 89.8 33.1 346.7 9.2 53.4 21.6
Bemidji 74 41 0.0 7 89.4 24.1 323.0 6.9 40.6 15.1
Bigstone 76 54 0.01 5 82.1 7.1 121.1 2.2 12.4 2.5
Brainerd 75 47 0.0 5 86.7 9.4 138.6 4.0 16.1 5.7
Camp Ripley/Little Falls 75 51 0.0 5 87.1 13.5 35.9 4.1 13.9 5.4
Carlos Avery 79 55 0.0 4 87.1 12.5 230.8 3.9 22.1 6.7
Cass Lake 75 42 0.0 6 89.1 20.5 290.3 6.2 34.8 12.8
Cutfoot 74 44 0.0 6 87.8 16.6 347.4 5.0 29.7 10.0
Detroit Lakes 73 48 0.0 7 88.1 14.0 222.3 5.7 24.2 9.8
Effie 74 41 0.0 6 89.3 25.8 356.6 6.2 43.8 14.6
Ely 74 39 0.0 5 88.5 15.9 143.4 5.1 24.9 9.2
Fernberg 74 38 0.0 6 88.8 13.2 190.3 5.7 22.5 9.5
Grand Portage 73 44 0.0 6 86.9 11.4 218.2 4.4 20.2 7.1
Hibbing 75 42 0.0 6 88.6 15.6 107.7 5.5 22.9 9.3
Hill City 74 46 0.0 5 87.8 17.4 133.2 4.5 26.2 8.5
Isabella 74 39 0.0 5 87.3 12.0 127.8 4.5 19.4 7.1
Itasca 72 43 0.0 7 88.7 20.8 346.9 6.3 36.2 13.2
Station °F RH P24I Wind FFMC DMC DC ISI BUI FWI
Kelliher 74 39 0.0 7 89.5 23.5 340.4 7.0 40.1 15.2
Kittson 72 46 0.0 9 90.1 71.7 593.5 9.1 110.1 30.9
Litchfield 77 60 0.0 5 86.1 13.1 148.5 3.6 21.4 6.1
Littlefork 76 39 0.0 7 89.9 31.3 251.6 7.4 47.8 17.4
Meander USFS 75 39 0.0 5 88.9 21.1 150.1 5.4 31.2 10.8
MN Valley 79 63 0.0 4 85.6 9.1 74.6 3.2 14.0 4.1
Moose Lake 75 48 0.0 3 87.1 12.7 110.8 3.7 19.7 6.0
Mora 77 50 0.0 3 87.6 13.2 93.2 4.0 19.5 6.4
New Ulm Municipal Airport 76 74 0.0 5 83.4 8.3 104.9 2.5 13.8 3.1
Orr 74 40 0.0 5 88.4 15.6 178.9 5.0 25.6 9.1
Redstn 73 78 0.0 7 82.5 6.7 128.3 2.7 11.9 3.0
Rice Lake 75 46 0.0 5 87.7 15.2 189.5 4.5 25.3 8.2
Rochester 74 79 0.17 6 59.3 7.6 174.2 0.6 13.7 0.4
Roseau 73 45 0.0 10 90.0 71.3 469.3 9.9 103.3 31.9
Saginaw 75 44 0.0 5 87.7 14.7 176.7 4.5 24.4 8.1
Seagull Lake 74 39 0.0 5 86.6 9.3 64.0 3.9 13.6 5.0
Sherburne 77 53 0.0 5 87.1 11.6 131.8 4.1 19.0 6.4
Skibo 75 40 0.0 6 88.5 13.4 182.0 5.5 22.6 9.2
Stanton Airfield 78 68 0.02 3 84.4 14.8 255.7 2.5 25.8 4.8
St. Croix 78 48 0.0 3 87.3 13.1 84.9 3.8 18.9 6.0
Station °F RH P24I Wind FFMC DMC DC ISI BUI FWI
Superior #1 73 41 0.0 5 87.0 10.2 151.9 4.3 17.5 6.4
Superior #2 74 41 0.0 5 87.0 18.7 154.2 4.2 28.7 8.3
Superior #3 74 39 0.0 5 88.5 17.7 140.7 5.1 26.9 9.6
Voyageurs/Kabnam 74 41 0.0 6 89.2 20.0 174.1 6.3 31.1 12.3

Interpretation

The following chart is a statewide generalized fire danger rating chart for the Canadian Fire Weather Index. It is based on a five class danger rating system, i.e., low, moderate, high, very high , and extreme. The distribution is based on weather records from 1985 - 1998. Low days occurred 45% to 50% of the time, moderate - 30 %, high days - 12% to 15%, very high days occurred 7%-8% of the time, and extreme days were 2%-3%. This is not meant to be used as a staffing guide . Each area needs to look at its own weather data coupled with its fire occurrence data. For instance, if you have a drought code of 380, it does not mean you are in extreme fire danger. It means that the drought code only gets that high on 2% of the days between April 1 and November 1.

Index Low Moderate High Very High Extreme

FFMC

0.0 - 80.9

81.0 - 87.9

88.0 - 90.4

90.5 - 92.4

92.5+

DMC

0.0 - 12.9

13.0 - 27.9

28.0 - 41.9

42.0 - 62.9

63.0+

DC

0.0 - 79.9

80.0 - 209.9

210.0 - 273.9

274.0 - 359.9

360.0+

ISI

0.0 - 3.9

4.0 - 7.9

8.0 - 10.9

11.0 - 18.9

19.0+

BUI

0.0 - 18.9

19.0 - 33.9

34.0 - 53.9

54.0 - 76.9

77.0+

FWI

0.0 - 4.9

5.0 - 13.9

14.0 - 20.9

21.0 - 32.9

33.0+

Definitions

Fine Fuel Moisture Code (FFMC)

This provides a relative indicator of the moisture in the fine fuels. Like the 1 hour fuel moisture, it reacts directly with the air temperature and relative humidity.

Duff Moisture Code (DMC)

This is an index of the moisture of the loosely compact organic layers at a depth of 2-4 inches.

Drought Code (DC)

This measures long term dryness in the fuels. It is a longer term index than the NFDRS 1000 fuel moisture. It doesn't reflect the probability of fire occurrence by itself, but can be useful in predicting the level of mop up needed and the consumption of large fuels. It should be looked at in relation to peat fire starts.

Initial Spread Index (ISI)

This is based on the FFMC and the wind speed. It provides a relative numerical rating of the expected rate of spread. This is similar to the NFDRS Spread Component.

Buildup Index (BUI)

This index is based on the DC and the DMC. It provides a relative indication of the amount of fuel available for combustion. This is somewhat similar to the NFDRS Energy Release Component. It doesn't predict what a given day might be like, but does relate well to the dryness of the fuels.

Fire Weather Index (FWI)

This combines the BUI and the ISI to give a relative numerical rating of fire intensity. It can be compared to the NFDRS Burning Index.