FNUS73 KGRR 201304
FWSGRR

FIRE WEATHER PLANNING FORECAST FOR PRAIRIE FIELDS...MI DNR
NATIONAL WEATHER SERVICE GRAND RAPIDS MI
804 AM EST TUE NOV 20 2012

FORECAST IS BASED ON IGNITION TIME OF 1300 EST ON NOVEMBER 20.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...
A WEAK COOL FRONT WILL SLOWLY PRESS INTO THE AREA FROM THE WEST
TODAY. WINDS WILL BE QUITE WEAK AS THE PRESSURE GRADIENT
ASSOCIATED WITH IT IS WEAK. A LIGHT SOUTH WIND AROUND 5 MPH WILL
SHIFT TO THE SOUTHWEST THIS AFTERNOON. SCATTERED SHOWERS CAN BE
EXPECTED TODAY ASSOCIATED WITH THE FRONT. MANY AREAS WILL STAY
DRY...BUT THE THREAT FOR A FEW SHOWERS DOES EXIST. CLOUDS SHOULD
REMAIN IN PLACE ALL DAY.

WEDNESDAY SKIES WILL TRY TO TREND TOWARD PARTLY CLOUDY...BUT LOW
CLOUDS AND FOG WILL LIKELY BE THE MAIN STORY. HIGH PRESSURE WILL
PROVIDE LIGHT WINDS ONCE AGAIN.


.TODAY...

SKY/WEATHER.........MOSTLY CLOUDY (80-90 PERCENT). CHANCE OF RAIN
                    SHOWERS.
TEMPERATURE.........52 AT IGNITION...MAX 54.
RH..................69 PERCENT AT IGNITION...MIN 66 PERCENT.
WIND (20 FT)........WINDS SOUTH AT 6 MPH AT IGNITION...OTHERWISE
                    SOUTHWEST WINDS 4 TO 6 MPH.
MIXING WINDS........SOUTHWEST 6 TO 8 MPH.
MIXING HEIGHT.......4400 FT AGL AT IGNITION...OTHERWISE 4200-4700
                    FT AGL DECREASING TO 2200 FT AGL IN THE
                    EVENING.
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH AT IGNITION...MAX 3.
SMOKE DISPERSAL.....0-400 (POOR TO GOOD).

TIME (EST)      1 PM   3 PM   5 PM
SKY (%).........90     95     94
WEATHER COV.....CHANCE S CHC  S CHC
WEATHER TYPE....RNSHWR RNSHWR RNSHWR
TEMP............52     53     51
RH..............69     69     74
20 FT WIND......S 6    SW 6   W 5
20 FT GUST......
HAINES INDEX....3      3      3

.WEDNESDAY...

SKY/WEATHER.........MOSTLY CLOUDY BECOMING PARTY SUNNY (70-80 PERCENT).
TEMPERATURE.........MAX 56.
RH..................MIN 64 PERCENT.
WIND (20 FT)........SOUTHWEST WINDS 5 TO 10 MPH.
MIXING WINDS........SOUTHWEST 3 TO 7 MPH.
MIXING HEIGHT.......4000-4500 FT AGL DECREASING TO 1500 FT AGL IN
                    THE EVENING.
HAINES INDEX........3 TO 5 OR OR VERY LOW POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH TO OR MODERATE POTENTIAL
                    FOR LARGE PLUME DOMINATED FIRE GROWTH.
SMOKE DISPERSAL.....0-300 (POOR TO GOOD).

$$
FORECASTER...DUKE
REQUESTED BY...LEE OSTERLAND
TYPE OF REQUEST...PRESCRIBED
.TAG 20121120.PRAIR.01/GRR