Forecast Canadian fire danger indexes

Forecast for 13:00 2016-08-26

**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 71 46 0.01 10 86.9 36.7 242.2 6.3 53.2 16.4
Albert Lea 71 58 0.0 3 77.1 8.3 62.5 1.2 12.4 0.8
Badoura 72 50 0.0 7 87.3 35.5 181.1 5.1 47.7 13.2
Baudette 72 47 0.03 8 86.4 24.5 134.1 4.9 33.7 10.5
Bemidji 71 47 0.0 8 87.5 22.0 162.4 5.7 32.8 11.6
Bigstone 73 46 0.0 7 88.2 19.9 155.6 5.6 30.1 11.0
Brainerd 71 51 0.0 7 87.3 19.1 87.0 5.1 24.6 9.0
Camp Ripley/Little Falls 72 47 0.0 5 88.0 20.6 88.4 4.7 26.1 8.7
Carlos Avery 72 53 0.0 3 86.9 17.5 61.5 3.5 20.4 5.8
Cass Lake 70 49 0.01 8 87.4 20.1 194.4 5.6 31.9 11.3
Cutfoot 71 51 0.01 7 87.2 20.4 113.6 5.0 28.2 9.7
Detroit Lakes 71 48 0.0 8 86.6 28.6 163.4 5.0 39.7 11.7
Effie 70 49 0.02 7 87.5 26.7 233.2 5.2 41.5 12.4
Ely 68 50 0.02 6 86.6 31.8 287.7 4.2 49.8 11.5
Fernberg 67 51 0.02 6 83.9 36.1 349.5 2.9 57.4 9.3
Grand Portage 65 59 0.0 6 85.4 20.0 178.8 3.6 31.3 7.6
Hibbing 71 51 0.02 6 87.3 41.4 172.0 4.7 51.7 12.8
Hill City 71 52 0.0 6 87.0 33.6 109.5 4.5 38.1 10.4
Isabella 66 50 0.02 5 86.7 21.3 222.0 4.1 34.3 9.2
Itasca 70 47 0.0 8 87.3 38.0 243.9 5.4 54.7 14.7
Station °F RH P24I Wind FFMC DMC DC ISI BUI FWI
Kelliher 71 47 0.02 7 81.7 22.8 228.5 2.5 36.5 6.0
Kittson 72 43 0.01 10 87.3 38.0 190.5 6.7 50.7 16.7
Litchfield 72 53 0.0 4 86.7 19.8 94.8 3.6 26.0 6.8
Littlefork 71 47 0.03 7 86.9 32.7 229.4 4.9 48.2 12.7
Meander USFS 68 52 0.02 5 82.3 20.2 231.3 2.3 33.2 5.1
MNS #1 70 49 0.0 4 87.6 16.5 46.3 4.2 17.4 6.2
MN Valley 72 55 0.0 3 85.5 10.2 36.6 2.9 12.0 3.4
Moose Lake 71 51 0.0 3 87.5 19.3 163.4 3.9 29.8 8.1
Mora 71 51 0.0 3 87.4 17.0 57.0 3.9 19.5 6.2
New Ulm Municipal Airport 71 55 0.0 5 84.5 10.9 89.0 2.9 16.7 4.1
Orr 70 47 0.02 6 87.7 24.4 172.2 4.9 36.1 10.9
Redstn 72 51 0.0 7 86.3 12.5 176.2 4.4 21.3 7.4
Rice Lake 71 50 0.0 5 87.3 20.6 159.9 4.3 31.1 8.9
Rochester 70 59 0.0 3 83.4 8.7 28.3 2.2 9.8 2.0
Roseau 72 44 0.02 9 88.0 40.7 259.2 6.8 58.5 18.2
Saginaw 70 50 0.0 6 87.5 33.7 278.9 4.9 51.8 13.3
Seagull Lake 66 50 0.02 5 86.7 26.6 248.0 4.0 41.9 10.0
Sherburne 72 48 0.0 4 88.1 23.5 176.8 4.5 35.2 9.9
Skibo 68 51 0.02 7 87.1 30.4 249.5 4.8 46.6 12.4
Stanton Airfield 71 56 0.0 2 86.6 103.1 590.0 3.1 143.5 16.1
Station °F RH P24I Wind FFMC DMC DC ISI BUI FWI
St. Croix 70 52 0.0 3 86.3 14.3 87.0 3.3 20.3 5.4
Superior #1 65 51 0.01 5 86.9 25.0 271.7 4.1 40.6 10.0
Superior #2 68 51 0.02 6 86.3 40.8 247.3 4.0 57.8 12.2
Voyageurs/Kabnam 70 50 0.02 6 86.3 23.8 123.7 4.0 32.1 8.6

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.