Forecast Canadian fire danger indexes

Forecast for 13:00 2017-06-29

**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 71 1.05 9 44.1 7.9 186.3 0.1 14.3 0.1
Albert Lea 77 56 0.0 6 80.9 15.2 112.6 2.0 22.7 3.4
Badoura 75 56 0.27 8 58.9 10.6 174.9 0.7 18.4 0.6
Baudette 71 61 0.77 8 53.7 8.1 125.1 0.5 13.9 0.3
Bemidji 72 63 0.48 8 55.5 9.7 167.0 0.6 16.9 0.5
Bigstone 75 57 0.0 5 86.8 32.7 202.0 4.1 46.6 10.8
Brainerd 73 60 0.1 7 67.0 24.7 187.8 1.0 37.2 2.1
Camp Ripley/Little Falls 74 57 0.0 6 67.8 23.6 138.9 0.9 33.1 1.6
Carlos Avery 75 62 0.47 7 52.5 6.8 128.5 0.4 12.0 0.3
Cass Lake 72 64 0.3 6 56.7 10.1 216.1 0.5 18.1 0.4
Cutfoot 70 68 0.35 6 53.7 10.3 211.5 0.4 18.3 0.3
Detroit Lakes 70 61 0.1 8 62.6 14.9 193.6 0.9 25.0 1.0
Effie 70 69 0.37 5 51.9 7.1 167.8 0.3 12.9 0.2
Ely 65 80 1.09 7 39.5 4.9 67.3 0.1 8.3 0.0
Fernberg 65 78 1.07 7 41.2 4.6 45.8 0.1 7.3 0.0
Grand Portage 62 80 1.02 10 41.2 3.7 6.5 0.1 3.6 0.0
Hibbing 66 73 0.83 6 44.2 6.6 70.6 0.1 10.6 0.1
Hill City 70 68 0.5 6 52.2 11.8 119.3 0.3 18.9 0.3
Isabella 64 78 1.21 8 39.8 3.6 7.5 0.1 3.5 0.0
Itasca 71 63 0.5 7 49.9 10.3 203.6 0.3 18.2 0.2
Station °F RH P24I Wind FFMC DMC DC ISI BUI FWI
Kelliher 71 66 0.35 7 59.1 11.2 243.6 0.7 20.0 0.6
Kittson 72 70 0.15 8 50.2 9.3 232.2 0.3 16.9 0.3
Litchfield 76 56 0.0 6 80.7 19.6 183.2 2.0 30.9 4.2
Littlefork 70 68 0.64 5 47.4 10.0 150.6 0.2 17.1 0.1
Meander USFS 66 81 1.17 6 37.5 6.0 87.9 0.0 10.2 0.0
MN Valley 77 59 0.0 6 79.8 14.9 111.6 1.8 22.4 3.0
Moose Lake 70 71 0.34 8 45.5 6.8 101.8 0.2 11.7 0.1
Mora 72 62 0.02 7 67.8 26.3 142.6 1.0 36.0 2.1
New Ulm Municipal Airport 77 59 0.0 5 81.6 19.7 149.6 2.0 29.6 4.1
Orr 66 75 1.49 5 41.0 5.0 85.7 0.1 8.8 0.0
Redstn 76 52 0.0 7 84.7 24.2 128.4 3.5 32.9 7.8
Rochester 76 60 0.02 8 77.7 13.7 128.1 1.8 21.6 2.9
Roseau 70 71 0.39 7 45.0 5.2 104.8 0.1 9.3 0.1
Saginaw 68 76 1.31 6 35.1 4.5 74.8 0.0 7.8 0.0
Seagull Lake 67 73 0.89 9 48.5 5.0 6.9 0.3 4.7 0.1
Sherburne 76 57 0.01 6 71.3 21.4 199.1 1.0 33.7 2.0
Skibo 65 77 1.31 7 33.1 4.0 76.1 0.0 7.1 0.0
Stanton Airfield 76 60 0.01 8 82.1 19.8 172.4 2.7 30.8 5.9
St. Croix 71 70 0.11 7 51.8 12.8 143.7 0.4 21.0 0.3
Superior #1 65 75 1.04 8 44.3 4.4 6.7 0.1 4.1 0.1
Station °F RH P24I Wind FFMC DMC DC ISI BUI FWI
Superior #2 66 78 0.88 6 38.9 4.9 26.9 0.0 6.7 0.0
Superior #3 64 81 1.1 6 36.4 4.5 6.7 0.0 4.2 0.0
Voyageurs/Kabnam 67 74 0.91 4 43.1 7.8 97.1 0.1 13.0 0.1

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.