Forecast Canadian fire danger indexes

Forecast for 13:00 2016-05-01

**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 58 32 0.0 6 89.7 17.6 43.2 6.9 17.6 9.8
Albert Lea 53 56 0.13 17 66.9 15.7 74.7 2.2 20.6 3.6
Badoura 55 38 0.0 8 89.1 18.5 69.4 7.3 22.2 11.5
Baudette 57 33 0.0 7 90.4 25.2 52.9 8.2 25.2 13.5
Bemidji 57 33 0.0 7 89.9 14.7 22.4 7.6 14.5 9.6
Bigstone 58 36 0.0 13 85.0 7.9 23.6 6.3 8.6 6.2
Brainerd 56 40 0.0 10 88.3 15.8 22.0 7.7 15.6 10.1
Camp Ripley/Little Falls 56 43 0.0 13 87.2 10.3 19.3 7.9 10.2 8.3
Carlos Avery 58 44 0.0 15 85.5 8.5 20.2 7.6 8.4 7.4
Cass Lake 56 35 0.0 7 89.0 14.9 22.2 6.4 14.7 8.4
Cutfoot 55 38 0.0 6 89.6 16.9 25.3 6.6 16.7 9.1
Detroit Lakes 57 34 0.0 8 90.3 21.6 45.1 8.7 21.5 13.1
Effie 57 36 0.0 6 88.9 18.4 22.8 6.1 18.0 8.9
Ely 54 39 0.0 6 88.0 15.0 42.8 5.4 16.0 7.5
Fernberg 54 38 0.0 6 88.0 13.4 25.9 5.3 13.3 6.6
Grand Portage 51 47 0.0 8 85.6 11.9 40.6 4.5 13.7 5.8
Hibbing 55 42 0.0 7 88.1 16.5 23.9 5.9 16.2 8.2
Hill City 56 42 0.0 7 88.7 14.7 20.2 6.4 14.4 8.3
Isabella 53 40 0.0 6 87.0 10.5 17.3 4.7 10.3 5.1
Itasca 57 33 0.0 8 89.6 21.1 62.5 7.8 22.9 12.3
Station °F RH P24I Wind FFMC DMC DC ISI BUI FWI
Kelliher 56 34 0.0 5 89.5 19.4 32.2 6.1 19.2 9.3
Kittson 60 29 0.0 6 90.2 19.3 42.8 7.3 19.2 10.7
Litchfield 56 47 0.0 16 84.8 8.8 31.7 7.5 10.4 8.1
Littlefork 57 35 0.0 7 88.8 14.9 25.1 6.5 14.7 8.4
Meander USFS 54 38 0.0 4 88.2 14.6 24.5 4.8 14.4 6.3
MN Valley 58 46 0.0 15 85.0 8.6 21.0 7.2 8.5 7.1
Moose Lake 55 44 0.0 12 87.3 17.9 53.7 7.9 19.5 11.6
Mora 57 44 0.0 14 87.4 14.4 21.8 9.4 14.2 11.4
New Ulm Municipal Airport 57 48 0.09 16 73.8 4.9 12.3 2.7 4.9 1.6
Orr 56 35 0.0 4 89.0 15.4 21.0 5.3 15.1 7.2
Redstn 53 56 0.41 15 49.0 1.8 4.5 0.5 1.8 0.2
Rice Lake 57 40 0.0 10 88.4 16.0 21.1 8.0 15.7 10.4
Rochester 54 53 0.12 15 66.5 8.1 59.1 1.9 12.0 1.9
Roseau 58 34 0.0 5 89.9 19.6 43.7 6.2 19.5 9.4
Saginaw 54 45 0.0 9 87.6 12.7 19.2 6.4 12.5 7.7
Seagull Lake 54 38 0.0 6 87.9 15.7 39.9 5.3 15.8 7.3
Sherburne 57 45 0.0 14 85.7 8.7 21.8 7.4 8.7 7.3
Skibo 53 43 0.0 6 88.1 17.1 36.4 5.5 17.0 7.8
Stanton Airfield 57 46 0.05 15 81.1 22.0 80.7 4.4 26.2 8.3
St. Croix 57 44 0.0 8 88.0 16.6 22.8 6.2 16.3 8.6
Station °F RH P24I Wind FFMC DMC DC ISI BUI FWI
Voyageurs/Kabnam 55 37 0.0 4 88.4 13.8 21.4 4.9 13.6 6.3

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.