Forecast Canadian fire danger indexes

Forecast for 13:00 2016-08-28

**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 79 50 0.01 14 72.5 16.6 198.4 2.1 27.4 4.2
Albert Lea 78 70 0.0 10 79.8 9.6 76.1 2.6 14.6 3.3
Badoura 77 66 0.0 10 86.2 38.9 195.2 5.7 52.0 15.1
Baudette 76 55 0.2 9 63.4 9.6 120.4 1.0 15.9 0.8
Bemidji 76 63 0.21 10 69.4 16.4 167.0 1.4 26.4 2.5
Bigstone 82 60 0.61 16 72.4 11.2 137.3 2.4 18.7 3.6
Brainerd 75 70 0.0 9 86.3 22.6 101.2 5.1 29.0 10.0
Camp Ripley/Little Falls 74 74 0.04 11 81.3 23.9 102.7 3.3 30.2 7.0
Carlos Avery 77 73 0.01 9 68.9 11.3 64.3 1.3 15.7 1.1
Cass Lake 75 68 0.25 10 65.8 14.2 195.4 1.2 24.0 1.7
Cutfoot 72 72 1.08 6 49.2 9.6 73.7 0.2 14.5 0.2
Detroit Lakes 78 63 0.16 13 75.1 23.6 172.1 2.2 35.2 5.1
Effie 73 68 0.58 6 54.7 13.4 209.2 0.4 23.2 0.4
Ely 72 60 0.36 4 59.1 17.3 276.3 0.5 29.9 0.6
Fernberg 71 62 0.14 4 68.5 30.6 355.5 0.8 50.4 2.3
Grand Portage 68 67 0.1 6 70.6 18.1 191.8 1.0 29.3 1.6
Hibbing 72 68 0.52 6 54.6 21.5 156.9 0.4 32.0 0.5
Hill City 74 69 0.0 6 86.3 37.3 123.5 4.3 42.5 10.6
Isabella 70 59 0.01 6 83.7 18.0 227.3 2.9 30.1 6.1
Itasca 76 66 0.23 11 68.7 26.6 245.4 1.4 41.8 3.7
Station °F RH P24I Wind FFMC DMC DC ISI BUI FWI
Kelliher 76 55 0.26 9 70.5 15.9 227.7 1.3 27.1 2.3
Kittson 79 50 0.0 15 86.7 41.5 204.3 8.7 55.0 21.2
Litchfield 76 81 0.01 11 71.2 15.6 104.3 1.6 22.7 2.7
Littlefork 73 62 0.57 7 60.0 16.1 206.7 0.7 27.0 0.8
Meander USFS 71 64 0.48 5 55.4 11.8 214.3 0.4 20.7 0.4
MNS #1 76 69 0.02 10 78.2 15.7 60.0 2.2 19.0 3.3
MN Valley 79 73 0.01 10 74.1 8.2 46.5 1.7 11.4 1.4
Moose Lake 74 69 0.0 6 83.8 21.8 177.4 2.8 33.4 6.4
Mora 76 69 0.04 9 77.0 15.6 71.1 1.8 20.1 2.7
New Ulm Municipal Airport 80 69 0.0 11 76.1 8.4 98.0 2.1 13.8 2.4
Orr 72 62 0.35 5 59.6 14.7 167.1 0.6 24.1 0.6
Redstn 79 73 0.0 14 72.0 7.8 159.2 2.1 14.0 2.4
Rice Lake 75 68 0.0 7 86.6 23.9 174.3 4.6 35.6 10.3
Rochester 78 71 0.0 8 83.2 10.2 42.0 3.2 12.7 3.9
Roseau 78 52 0.0 12 77.3 24.3 249.7 2.3 39.1 5.9
Saginaw 74 63 0.07 5 77.8 34.9 292.8 1.4 53.7 4.4
Seagull Lake 72 58 0.03 4 85.1 31.4 262.1 3.1 48.3 8.7
Sherburne 76 74 0.02 10 76.8 19.7 186.1 1.9 31.1 4.0
Skibo 72 60 0.04 5 82.9 33.6 262.8 2.4 50.9 7.2
Stanton Airfield 79 69 0.0 9 84.3 105.0 603.7 4.0 146.4 19.5
Station °F RH P24I Wind FFMC DMC DC ISI BUI FWI
St. Croix 76 68 0.09 5 72.8 14.4 101.2 1.0 21.2 1.0
Superior #1 70 60 0.0 5 86.5 28.7 285.1 4.0 45.8 10.6
Superior #2 72 63 0.34 5 58.8 18.7 234.5 0.6 31.2 0.7
Voyageurs/Kabnam 73 63 0.79 7 56.8 12.0 97.6 0.6 18.3 0.5

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.