Forecast Canadian fire danger indexes

Forecast for 12:00 2016-12-06

**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 24 97 0.17 6 19.6 3.1 220.1 0.0 6.0 0.0
Albert Lea 23 75 0.01 22 69.7 7.3 94.9 3.6 12.2 4.3
Badoura 19 89 0.02 15 69.7 43.5 221.7 2.2 58.4 7.2
Baudette 25 88 0.16 11 33.6 1.9 105.1 0.0 3.7 0.0
Bemidji 20 91 0.1 15 37.5 1.2 226.9 0.1 2.4 0.0
Bigstone 22 66 0.0 28 63.9 1.1 97.4 4.9 2.1 2.5
Brainerd 23 81 0.08 18 55.0 5.3 162.9 1.2 9.9 0.7
Camp Ripley/Little Falls 22 79 0.04 21 67.8 2.1 112.9 3.2 4.0 1.8
Carlos Avery 22 78 0.02 18 49.5 0.0 0.0 0.7 0.0 0.1
Cass Lake 22 88 0.18 15 29.2 0.0 178.8 0.0 0.0 0.0
Cutfoot 21 84 0.07 14 37.2 0.0 134.1 0.1 0.0 0.0
Detroit Lakes 18 91 0.04 24 56.0 2.6 150.7 2.2 5.0 1.0
Effie 22 82 0.18 13 35.0 1.5 189.5 0.0 2.9 0.0
Ely 22 78 0.2 12 36.1 0.1 94.2 0.0 0.1 0.0
Fernberg 24 80 0.08 11 29.2 0.0 178.6 0.0 0.0 0.0
Grand Portage 32 74 0.23 11 35.1 0.0 0.0 0.0 0.0 0.0
Hibbing 21 87 0.23 11 27.7 0.0 57.3 0.0 0.0 0.0
Hill City 22 80 0.2 14 35.7 0.0 140.8 0.0 0.0 0.0
Isabella 23 78 0.13 11 30.3 0.0 0.6 0.0 0.0 0.0
Itasca 18 91 0.16 20 30.6 0.1 234.1 0.0 0.2 0.0
Station °F RH P24I Wind FFMC DMC DC ISI BUI FWI
Kelliher 22 92 0.18 13 29.5 3.4 191.4 0.0 6.5 0.0
Kittson 24 99 0.23 11 15.1 0.0 147.5 0.0 0.0 0.0
Litchfield 22 77 0.0 22 57.4 1.3 30.5 2.0 2.3 0.6
Littlefork 22 83 0.15 11 32.2 0.2 127.5 0.0 0.5 0.0
Meander USFS 21 82 0.14 11 28.2 0.0 68.8 0.0 0.0 0.0
MN Valley 24 71 0.0 21 59.4 0.1 0.5 2.1 0.1 0.5
Moose Lake 21 82 0.22 15 31.1 0.0 116.0 0.0 0.0 0.0
Mora 22 80 0.05 18 44.4 0.5 47.8 0.3 1.0 0.1
New Ulm Municipal Airport 23 66 0.0 25 78.5 2.8 39.9 7.6 4.8 5.7
Orr 21 80 0.17 12 37.0 0.0 97.4 0.1 0.0 0.0
Redstn 18 74 0.0 27 59.7 6.0 164.2 3.6 11.0 4.1
Rice Lake 22 79 0.17 14 38.1 0.0 108.7 0.1 0.0 0.0
Rochester 22 91 0.05 21 34.5 0.1 17.2 0.1 0.2 0.0
Roseau 27 92 0.24 13 27.0 0.6 202.2 0.0 1.1 0.0
Saginaw 21 81 0.16 14 35.5 0.0 207.5 0.0 0.0 0.0
Seagull Lake 28 73 0.11 10 40.8 0.0 109.4 0.1 0.0 0.0
Sherburne 22 78 0.02 19 62.1 0.0 27.6 2.2 0.0 0.4
Skibo 20 84 0.16 12 34.0 2.6 103.9 0.0 4.9 0.0
St. Croix 22 82 0.15 15 35.8 0.0 71.1 0.0 0.0 0.0
Voyageurs/Kabnam 23 80 0.17 11 35.1 0.0 22.9 0.0 0.0 0.0

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.