Forecast Canadian fire danger indexes

Forecast for 13:00 2016-09-26

**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 56 54 0.29 21 63.4 7.7 138.7 2.7 13.6 3.3
Albert Lea 60 50 0.01 24 84.7 8.6 90.5 14.3 13.9 15.6
Badoura 56 53 0.09 20 71.6 20.0 94.4 3.3 26.2 6.4
Baudette 54 65 0.71 21 48.5 3.3 41.2 0.8 5.5 0.3
Bemidji 56 56 0.35 22 60.8 10.3 165.3 2.6 17.8 3.9
Bigstone 62 38 0.0 24 80.7 5.8 164.6 8.7 10.6 9.3
Brainerd 55 55 0.07 22 69.4 7.9 113.4 3.6 13.4 4.6
Camp Ripley/Little Falls 58 53 0.03 24 72.4 6.8 123.0 4.8 12.0 5.8
Carlos Avery 59 52 0.04 24 74.6 5.0 14.1 5.3 5.3 4.2
Cass Lake 55 57 0.34 22 61.1 11.2 200.2 2.6 19.7 4.2
Cutfoot 54 61 0.35 21 56.8 11.3 77.8 1.8 16.5 2.2
Detroit Lakes 57 50 0.19 24 65.7 10.4 122.1 3.8 17.1 5.7
Effie 54 63 0.48 19 50.1 6.1 131.4 0.8 10.9 0.5
Ely 50 78 0.24 18 44.8 4.7 150.3 0.4 8.7 0.2
Fernberg 49 83 0.21 18 33.0 3.1 265.4 0.0 6.1 0.0
Grand Portage 55 70 0.52 18 41.3 1.0 98.8 0.2 2.0 0.1
Hibbing 53 67 0.25 21 56.2 4.5 22.8 1.8 6.0 0.8
Hill City 54 60 0.28 22 54.8 5.5 105.8 1.6 9.8 1.0
Isabella 50 79 0.2 20 41.7 2.4 110.3 0.2 4.5 0.1
Itasca 56 53 0.37 23 56.1 8.7 231.0 2.0 15.9 2.6
Station °F RH P24I Wind FFMC DMC DC ISI BUI FWI
Kelliher 55 61 0.58 17 51.4 5.1 128.1 0.8 9.2 0.5
Kittson 56 55 0.61 22 56.2 6.2 111.7 1.8 11.0 1.6
Litchfield 58 54 0.03 24 74.2 3.2 9.1 5.2 3.4 3.3
Littlefork 54 70 0.42 18 47.2 3.3 116.7 0.5 6.2 0.2
Meander USFS 51 79 0.29 18 39.6 5.5 113.8 0.1 9.8 0.1
MN Valley 60 52 0.02 24 79.5 4.5 15.0 7.7 5.1 6.0
Moose Lake 55 58 0.07 22 72.1 4.9 129.1 4.0 9.0 4.0
Mora 55 60 0.04 24 69.3 3.8 57.3 4.3 6.6 3.7
New Ulm Municipal Airport 61 48 0.01 24 85.4 12.0 94.4 15.8 18.3 19.0
Orr 52 71 0.33 18 48.2 6.4 58.7 0.6 10.1 0.3
Redstn 63 37 0.0 22 81.5 9.3 152.5 8.2 16.1 10.8
Rice Lake 54 58 0.08 22 64.5 4.2 103.4 3.1 7.7 2.7
Rochester 59 53 0.01 24 81.7 3.9 22.5 9.7 5.4 7.6
Roseau 56 60 0.51 19 55.1 6.1 148.9 1.4 11.0 0.9
Saginaw 54 64 0.2 22 58.9 6.0 204.7 2.3 11.2 2.3
Seagull Lake 49 83 0.14 17 43.7 6.0 219.5 0.3 11.3 0.2
Sherburne 58 51 0.02 25 75.2 3.6 25.9 6.0 5.3 4.8
Skibo 51 74 0.32 19 43.9 3.9 115.1 0.3 7.2 0.2
St. Croix 56 56 0.06 22 72.9 7.4 92.2 4.1 12.3 5.0
Superior #1 50 81 0.16 17 40.4 2.6 205.9 0.2 5.1 0.1
Station °F RH P24I Wind FFMC DMC DC ISI BUI FWI
Superior #2 50 78 0.33 18 40.3 5.3 144.1 0.2 9.7 0.1
Voyageurs/Kabnam 53 73 0.32 19 45.1 3.8 40.1 0.4 6.2 0.2

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.