Forecast Canadian fire danger indexes

Forecast for 13:00 2016-05-05

**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 78 32 0.0 19 91.8 33.1 65.9 25.4 33.0 34.5
Albert Lea 66 36 0.0 8 90.3 32.8 98.4 8.6 35.8 16.8
Badoura 73 34 0.0 12 92.5 34.7 91.9 16.2 35.7 26.5
Baudette 76 32 0.0 14 91.9 40.1 74.5 18.2 39.9 30.2
Bemidji 75 30 0.0 16 91.9 30.4 44.6 20.4 30.1 28.6
Bigstone 77 27 0.0 12 92.6 24.2 47.0 15.8 24.1 21.6
Brainerd 72 32 0.0 12 91.2 30.5 44.0 13.3 30.2 21.3
Camp Ripley/Little Falls 71 30 0.0 12 91.8 25.6 41.5 15.3 25.4 21.6
Carlos Avery 68 32 0.0 11 91.2 23.1 41.9 12.2 23.0 17.5
Cass Lake 75 29 0.0 13 92.0 30.2 44.3 15.7 29.9 23.8
Cutfoot 71 35 0.0 9 92.3 34.0 48.1 12.3 33.7 21.2
Detroit Lakes 75 31 0.0 14 93.2 38.9 68.2 21.5 38.7 33.3
Effie 72 32 0.0 11 91.9 33.1 44.2 13.3 32.8 22.1
Ely 67 30 0.0 11 91.0 27.8 63.1 11.9 27.8 18.8
Fernberg 66 29 0.0 11 90.9 24.8 45.1 11.7 24.6 17.6
Grand Portage 54 44 0.0 10 86.9 20.0 58.3 6.2 21.5 10.0
Hibbing 68 33 0.0 11 91.3 30.1 44.6 12.3 29.8 19.9
Hill City 71 32 0.0 11 91.7 29.5 42.0 13.6 29.2 21.3
Isabella 63 33 0.0 11 89.7 22.1 36.9 9.8 21.9 14.5
Itasca 74 31 0.0 12 92.7 37.4 85.1 16.9 37.3 27.8
Station °F RH P24I Wind FFMC DMC DC ISI BUI FWI
Kelliher 74 32 0.0 13 92.4 34.8 54.1 16.5 34.5 26.4
Kittson 81 28 0.0 17 92.9 35.8 65.6 25.6 35.6 35.9
Litchfield 72 31 0.0 11 91.3 24.3 54.1 12.4 24.2 18.1
Littlefork 73 32 0.0 11 92.3 29.1 46.2 14.3 28.9 21.9
Meander USFS 68 30 0.0 11 91.3 28.2 45.0 12.3 27.9 19.3
MN Valley 70 32 0.0 9 91.1 23.9 43.2 10.4 23.8 15.8
Moose Lake 66 34 0.0 11 91.5 31.5 75.0 13.2 31.5 21.5
Mora 69 31 0.0 12 90.9 27.6 43.0 12.9 27.4 19.8
New Ulm Municipal Airport 71 32 0.0 9 91.0 17.5 30.1 10.2 17.3 13.3
Orr 71 29 0.0 11 91.7 30.0 42.3 12.9 29.7 20.7
Redstn 71 36 0.0 11 90.3 15.2 26.6 10.7 15.1 12.9
Rice Lake 70 31 0.0 11 91.7 30.2 42.6 14.0 29.9 21.9
Rochester 63 38 0.0 8 88.9 16.6 59.0 7.1 19.5 10.5
Roseau 80 32 0.0 16 92.6 36.2 66.5 22.7 36.0 33.4
Saginaw 66 34 0.0 11 91.4 25.7 39.7 13.0 25.4 19.2
Seagull Lake 66 29 0.0 9 90.5 27.8 59.7 9.6 27.7 16.0
Sherburne 69 31 0.0 12 91.6 23.9 44.1 13.9 23.8 19.6
Skibo 67 33 0.0 11 91.4 30.7 56.9 12.9 30.5 20.9
Stanton Airfield 66 36 0.0 8 90.1 35.2 102.1 8.4 37.8 17.0
St. Croix 66 32 0.0 9 91.9 31.2 44.4 11.6 30.9 19.5
Station °F RH P24I Wind FFMC DMC DC ISI BUI FWI
Voyageurs/Kabnam 70 34 0.0 11 91.1 27.5 42.2 12.3 27.2 19.1

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.