Forecast Canadian fire danger indexes

Forecast for 13:00 2016-09-30

**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 62 0.0 11 84.6 12.2 161.1 5.0 20.6 8.1
Albert Lea 66 59 0.0 10 86.0 15.5 109.9 5.6 22.9 9.5
Badoura 62 65 0.0 8 84.2 27.4 111.6 3.6 34.0 8.1
Baudette 62 65 0.0 9 80.5 5.0 52.8 2.5 8.1 2.1
Bemidji 61 69 0.0 8 81.6 12.8 188.8 2.7 21.9 4.6
Bigstone 66 56 0.0 10 86.1 12.3 184.2 5.3 21.1 8.6
Brainerd 63 65 0.0 6 83.6 13.3 130.9 2.8 21.2 4.7
Camp Ripley/Little Falls 64 61 0.0 6 84.1 11.6 141.0 3.0 19.3 4.8
Carlos Avery 65 64 0.0 7 83.1 8.3 32.4 2.9 10.2 3.0
Cass Lake 61 65 0.0 8 80.5 13.2 222.7 2.3 23.0 4.0
Cutfoot 62 63 0.0 7 74.5 9.5 96.0 1.3 15.2 1.0
Detroit Lakes 62 66 0.0 10 85.7 16.9 144.0 5.1 26.1 9.4
Effie 62 60 0.0 6 79.3 6.2 151.1 1.7 11.2 1.4
Ely 64 56 0.0 5 76.8 4.7 111.1 1.3 8.5 0.7
Fernberg 64 55 0.0 5 73.6 3.3 208.5 1.0 6.4 0.5
Grand Portage 63 63 0.0 8 77.9 3.4 106.6 1.8 6.3 0.9
Hibbing 62 61 0.0 6 79.9 5.6 38.5 1.8 8.2 1.0
Hill City 62 64 0.0 6 77.1 5.3 124.2 1.4 9.6 0.8
Isabella 62 60 0.0 7 69.9 2.7 56.8 1.1 4.8 0.5
Itasca 60 67 0.0 9 83.2 13.4 256.0 3.3 23.7 6.1
Station °F RH P24I Wind FFMC DMC DC ISI BUI FWI
Kelliher 61 67 0.0 6 77.5 4.7 146.1 1.5 8.7 0.8
Kittson 64 61 0.0 13 84.7 10.4 131.3 5.7 17.4 8.3
Litchfield 64 65 0.0 7 86.2 9.7 28.6 4.4 10.5 4.8
Littlefork 61 65 0.0 6 73.8 3.6 106.1 1.2 6.6 0.6
Meander USFS 62 61 0.0 4 67.2 4.0 37.5 0.8 6.3 0.4
MN Valley 66 60 0.0 7 85.8 10.9 34.6 4.2 12.2 5.0
Moose Lake 59 70 0.0 8 79.8 6.2 139.3 2.1 11.1 2.1
Mora 65 60 0.0 6 81.8 5.8 71.4 2.3 9.6 2.1
New Ulm Municipal Airport 66 60 0.0 6 86.1 18.3 113.5 4.1 26.1 7.8
Orr 61 61 0.0 5 75.6 5.3 33.1 1.2 7.6 0.6
Redstn 65 56 0.0 9 86.2 16.1 172.2 5.3 26.1 9.6
Rice Lake 62 64 0.0 7 79.7 5.1 115.5 1.9 9.2 1.5
Rochester 64 65 0.0 11 84.2 9.3 41.7 4.6 11.9 5.5
Roseau 63 65 0.0 11 84.0 9.8 168.9 4.4 17.0 6.5
Saginaw 61 67 0.0 8 79.8 6.9 221.7 2.1 12.9 2.4
Seagull Lake 63 56 0.0 5 75.3 4.1 184.6 1.1 7.7 0.6
Sherburne 65 63 0.0 7 84.0 8.3 44.2 3.2 11.3 3.6
Skibo 62 60 0.0 6 76.3 4.3 105.9 1.3 7.8 0.7
St. Croix 63 63 0.0 7 80.9 8.1 104.7 2.2 13.6 2.6
Superior #1 63 57 0.0 7 64.4 2.4 166.6 0.9 4.7 0.4
Station °F RH P24I Wind FFMC DMC DC ISI BUI FWI
Superior #2 63 59 0.0 5 73.0 4.4 84.2 1.0 7.8 0.5
Voyageurs/Kabnam 60 67 0.0 6 70.6 3.5 16.1 1.0 4.5 0.4

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.