Forecast Canadian fire danger indexes

Forecast for 13:00 2017-05-24

**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 62 47 0.0 12 81.7 37.9 153.8 3.8 46.9 10.2
Albert Lea 56 69 0.0 11 59.8 3.3 14.1 1.0 4.2 0.4
Badoura 60 54 0.0 7 79.2 17.0 90.0 1.8 23.1 3.1
Baudette 63 42 0.0 9 79.5 22.1 164.3 2.3 33.1 5.1
Bemidji 60 52 0.0 9 68.7 19.4 110.4 1.2 26.9 2.1
Bigstone 59 55 0.08 7 61.6 4.0 68.2 0.8 7.0 0.4
Brainerd 58 61 0.01 7 81.3 11.0 53.6 2.3 14.5 2.9
Camp Ripley/Little Falls 58 59 0.01 8 74.5 6.4 30.4 1.4 8.4 0.8
Carlos Avery 58 65 0.0 8 80.2 6.0 19.8 2.3 6.8 1.5
Cass Lake 60 53 0.0 6 66.6 21.0 132.2 0.9 30.0 1.4
Cutfoot 61 50 0.01 6 66.6 21.2 129.5 0.9 30.1 1.3
Detroit Lakes 58 59 0.0 9 77.9 23.2 129.7 1.9 32.1 4.3
Effie 62 47 0.0 7 73.3 19.4 145.1 1.2 29.0 2.2
Ely 60 48 0.0 6 68.3 11.1 73.8 0.9 16.1 0.8
Fernberg 60 45 0.0 6 67.5 13.7 119.1 0.9 21.3 0.9
Grand Portage 55 59 0.01 6 53.2 4.3 31.5 0.4 6.5 0.2
Hibbing 58 55 0.0 7 73.8 7.9 68.6 1.3 12.3 0.9
Hill City 58 60 0.2 6 54.4 6.6 42.7 0.4 9.6 0.2
Isabella 56 56 0.03 7 63.2 5.3 37.1 0.9 7.8 0.5
Itasca 59 54 0.0 6 57.6 14.7 97.1 0.6 21.3 0.6
Station °F RH P24I Wind FFMC DMC DC ISI BUI FWI
Kelliher 61 47 0.0 8 69.7 28.0 170.7 1.2 39.7 2.8
Kittson 64 46 0.0 12 82.8 31.2 153.8 4.3 41.4 10.5
Litchfield 58 64 0.01 9 79.9 7.1 18.7 2.4 7.3 1.7
Littlefork 63 42 0.0 7 73.8 22.2 149.7 1.3 32.4 2.6
Meander USFS 61 43 0.0 5 62.8 7.4 83.9 0.7 12.1 0.5
MN Valley 58 69 0.0 8 77.6 5.0 19.1 1.8 6.0 0.8
Moose Lake 56 64 0.0 9 78.2 6.3 18.4 1.9 6.8 1.0
Mora 58 60 0.0 9 78.3 6.2 31.6 2.0 8.3 1.4
New Ulm Municipal Airport 56 67 0.0 8 65.4 3.6 10.9 1.0 4.0 0.4
Orr 60 46 0.0 6 71.7 22.0 128.4 1.1 30.8 1.9
Redstn 56 62 0.07 6 45.6 1.7 14.4 0.1 2.6 0.0
Rice Lake 58 60 0.08 8 68.2 6.7 18.3 1.1 7.0 0.5
Rochester 56 68 0.0 9 53.4 3.1 25.9 0.5 4.7 0.2
Roseau 64 43 0.0 11 84.4 37.9 180.3 4.7 49.7 12.6
Saginaw 56 63 0.37 9 45.8 3.6 4.9 0.2 3.3 0.1
Seagull Lake 61 40 0.0 5 71.4 10.6 78.1 1.0 15.8 0.7
Sherburne 58 64 0.01 9 79.5 5.9 19.2 2.3 6.7 1.5
Skibo 58 53 0.01 6 75.8 9.4 42.8 1.3 12.1 0.9
Stanton Airfield 58 68 0.0 9 79.2 5.3 19.3 2.2 6.3 1.3
St. Croix 58 61 0.0 7 77.5 6.6 31.1 1.6 8.6 0.9
Station °F RH P24I Wind FFMC DMC DC ISI BUI FWI
Superior #1 57 52 0.01 6 58.9 7.9 58.1 0.6 11.7 0.4
Superior #2 60 50 0.01 6 59.6 10.0 84.4 0.6 15.5 0.5
Superior #3 60 44 0.0 5 66.6 11.0 78.8 0.8 16.4 0.7
Voyageurs/Kabnam 60 45 0.0 6 60.4 9.9 116.8 0.7 16.4 0.5

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.