Forecast Canadian fire danger indexes

Forecast for 13:00 2016-07-25

**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 77 58 0.17 9 71.7 10.5 156.3 1.4 18.0 1.6
Albert Lea 80 56 0.0 7 82.6 10.6 28.7 2.6 11.0 2.8
Badoura 78 53 0.0 8 85.0 13.6 68.0 4.0 18.2 6.2
Baudette 77 57 0.0 10 84.3 17.1 100.1 4.2 23.9 7.5
Bemidji 77 55 0.0 9 88.7 21.1 158.0 7.4 31.6 14.0
Bigstone 85 44 0.0 6 88.8 20.5 157.9 6.0 31.0 11.8
Brainerd 79 52 0.01 9 78.9 13.3 69.5 2.0 18.0 2.9
Camp Ripley/Little Falls 79 52 0.0 7 83.4 8.3 16.9 3.1 8.2 2.8
Carlos Avery 81 53 0.0 7 83.2 11.8 70.2 2.8 16.6 4.1
Cass Lake 77 53 0.0 9 87.7 21.4 174.2 6.4 32.7 12.7
Cutfoot 76 58 0.02 8 87.2 18.3 77.6 5.6 23.0 9.5
Detroit Lakes 77 55 0.0 8 83.1 11.7 55.1 3.0 15.3 4.1
Effie 77 56 0.01 8 87.2 22.0 158.3 5.6 32.6 11.4
Ely 74 54 0.01 11 84.0 15.1 191.4 4.4 25.2 8.1
Fernberg 75 54 0.01 11 87.0 21.4 194.3 6.6 33.6 13.3
Grand Portage 75 56 0.0 11 86.5 19.0 45.7 6.2 18.9 9.3
Hibbing 76 56 0.01 9 87.0 24.3 112.6 5.7 31.6 11.5
Hill City 77 58 0.0 9 85.7 20.3 73.6 4.9 24.0 8.7
Isabella 73 55 0.01 12 87.0 23.8 143.4 7.2 33.7 14.2
Itasca 77 56 0.0 9 86.8 22.0 201.1 5.5 34.5 11.6
Station °F RH P24I Wind FFMC DMC DC ISI BUI FWI
Kelliher 77 56 0.01 9 87.1 20.1 232.9 5.8 33.1 11.9
Kittson 77 61 0.0 8 80.3 10.4 39.7 2.3 12.6 2.5
Litchfield 81 54 0.0 6 83.2 9.4 37.9 2.8 11.6 3.2
Littlefork 77 58 0.02 9 88.2 25.2 165.9 6.9 36.5 14.3
Meander USFS 74 56 0.01 11 82.1 15.0 138.8 3.5 23.6 6.2
MNS #1 79 53 0.0 6 82.2 11.8 56.4 2.4 15.5 3.3
MN Valley 82 53 0.0 6 84.7 15.9 194.7 3.4 26.4 6.5
Moose Lake 77 56 0.01 8 83.2 14.0 78.0 3.2 19.3 5.1
Mora 81 49 0.0 7 84.9 13.1 40.0 3.6 14.4 4.8
New Ulm Municipal Airport 82 53 0.0 6 87.4 23.1 110.2 4.9 30.3 9.8
Orr 75 57 0.02 8 87.1 21.6 160.4 5.7 32.3 11.5
Redstn 82 48 0.0 4 87.8 17.1 113.8 4.5 24.9 8.2
Rice Lake 77 53 0.01 8 83.8 13.1 66.0 3.6 17.5 5.3
Rochester 79 57 0.0 9 83.8 8.7 36.4 3.7 10.9 4.1
Roseau 79 58 0.0 8 82.5 10.7 85.1 2.9 16.3 4.1
Saginaw 77 56 0.02 10 84.9 19.7 154.6 4.6 29.9 9.2
Seagull Lake 74 56 0.01 12 86.3 20.8 66.6 6.4 23.4 10.7
Sherburne 82 50 0.0 6 84.3 8.8 91.2 3.2 14.1 4.2
Skibo 74 56 0.01 11 87.8 22.7 129.7 7.5 31.6 14.2
Stanton Airfield 81 52 0.0 6 88.2 35.9 342.6 5.4 56.9 15.2
Station °F RH P24I Wind FFMC DMC DC ISI BUI FWI
St. Croix 79 53 0.0 8 83.7 13.0 51.3 3.3 15.9 4.6
Superior #1 73 58 0.0 12 88.3 26.4 147.5 8.7 36.5 17.0
Superior #2 74 56 0.01 11 82.6 15.0 132.8 3.7 23.3 6.6
Voyageurs/Kabnam 76 59 0.02 8 86.6 21.3 130.1 5.1 30.3 10.2

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.