Forecast Canadian fire danger indexes

Forecast for 13:00 2017-10-17

**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 63 42 0.0 13 89.9 20.0 294.9 12.2 34.3 21.2
Albert Lea 67 44 0.0 7 88.3 12.3 228.6 5.9 21.6 9.5
Badoura 63 44 0.0 13 85.7 9.8 80.2 6.5 15.0 8.5
Baudette 65 41 0.0 11 88.9 15.9 137.9 9.3 24.7 14.8
Bemidji 65 39 0.0 13 87.1 12.6 260.6 8.3 22.5 12.9
Bigstone 67 40 0.0 8 87.9 11.6 57.7 6.1 15.4 8.2
Brainerd 63 44 0.0 9 86.3 10.4 58.6 5.3 14.4 6.9
Camp Ripley/Little Falls 63 47 0.0 8 85.6 9.2 15.5 4.4 9.0 4.5
Carlos Avery 64 50 0.0 7 84.8 9.1 142.5 3.5 15.8 5.0
Cass Lake 63 44 0.0 11 85.5 9.5 178.6 5.5 16.7 7.8
Cutfoot 62 44 0.0 9 82.6 8.8 220.1 3.3 15.9 4.6
Detroit Lakes 63 41 0.0 13 86.5 11.8 127.9 7.3 19.1 10.7
Effie 62 44 0.0 10 85.1 9.6 200.5 4.9 17.2 7.2
Ely 61 43 0.0 7 86.0 11.7 43.9 4.3 14.0 5.7
Fernberg 60 42 0.0 7 85.2 10.0 82.9 3.8 15.3 5.3
Grand Portage 59 48 0.0 6 81.2 8.6 37.2 2.1 10.9 2.0
Hibbing 61 46 0.0 8 85.1 10.2 39.6 4.2 12.4 5.2
Hill City 62 45 0.0 9 85.1 10.3 36.7 4.5 12.1 5.4
Isabella 60 39 0.0 7 83.2 8.1 34.1 2.9 10.1 3.0
Itasca 63 40 0.0 14 85.3 9.6 219.6 6.9 17.3 9.7
Station °F RH P24I Wind FFMC DMC DC ISI BUI FWI
Kelliher 65 42 0.0 12 88.5 15.0 285.2 9.5 26.6 15.6
Kittson 64 42 0.0 14 88.4 19.9 221.4 10.5 32.5 18.5
Litchfield 65 47 0.0 7 83.9 7.1 20.8 3.2 7.7 2.8
Littlefork 62 39 0.0 9 88.6 16.0 242.2 7.4 27.4 13.1
Meander USFS 60 48 0.0 7 86.8 13.5 111.9 4.8 20.8 7.8
MN Valley 65 49 0.0 7 84.6 7.5 24.9 3.5 8.6 3.4
Moose Lake 62 47 0.0 8 84.8 8.7 31.5 3.9 10.3 4.3
Mora 64 49 0.0 7 84.3 7.9 18.5 3.4 7.8 3.1
New Ulm Municipal Airport 66 44 0.0 7 87.3 8.4 51.4 5.1 11.9 6.1
Orr 60 47 0.0 7 84.4 9.4 100.7 3.5 15.2 4.8
Redstn 66 38 0.0 8 88.7 10.3 72.6 6.8 15.2 9.0
Rice Lake 62 46 0.0 9 85.0 9.2 116.4 4.5 15.3 6.1
Rochester 66 44 0.0 9 85.7 4.2 74.7 4.8 7.4 4.4
Roseau 63 45 0.0 14 88.6 16.1 179.2 10.9 26.3 17.1
Saginaw 61 47 0.0 8 83.4 9.0 52.7 3.3 12.6 4.0
Seagull Lake 59 43 0.0 6 84.1 11.4 40.4 3.1 13.4 3.9
Sherburne 64 49 0.0 7 84.9 8.5 19.0 3.6 8.4 3.5
Skibo 61 43 0.0 8 85.6 11.0 41.6 4.4 13.3 5.6
Stanton Airfield 66 47 0.0 8 84.9 8.1 227.3 3.9 14.9 5.3
St. Croix 62 46 0.0 7 84.5 9.1 23.2 3.4 9.2 3.4
Station °F RH P24I Wind FFMC DMC DC ISI BUI FWI
Superior #2 61 45 0.0 9 82.2 8.6 79.3 3.1 13.5 3.9
Superior #3 60 46 0.0 7 84.3 11.2 108.7 3.5 17.8 5.2
Voyageurs/Kabnam 60 45 0.0 7 87.8 15.3 108.6 5.6 22.6 9.4

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.