FNUS73 KMPX 261145
FWSMPX

SPOT FORECAST FOR RAILROAD PRAIRIE...MN DNR
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
645 AM CDT THU APR 26 2012

FORECAST IS BASED ON IGNITION TIME OF 1030 CDT ON APRIL 26.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...
HIGH PRESSURE WILL BE BUILDING DOWN FROM THE CANADIAN PRAIRIES INTO THE
WESTERN GREAT LAKES TODAY...WITH A COOLER...THOUGH VERY DRY NORTHEAST WIND
TAKING SHAPE. WILL BE A MUCH COOLER DAY TODAY...WITH HIGHS ONLY IN
THE MID 50S...BUT A SIGNIFICANT INTRUSION OF DRY AIR WILL ALLOW AFTERNOON
HUMIDITIES AT THE BURN SITE TO FALL TO AROUND 25 PERCENT. NE WINDS WILL
BE STRONGEST IN THE MORNING...WITH 8 TO 12 MPH WINDS WITH GUSTS TO 20 MPH
DURING THE MORNING GIVING WAY TO 5 TO 10 MPH WINDS THIS AFTERNOON.

.TODAY...

SKY/WEATHER.........PARTLY SUNNY.
TEMPERATURE.........50 AT IGNITION...MAX 55.
RH..................49 PERCENT AT IGNITION...MIN 25 PERCENT.
WIND (20 FT)........WINDS NORTH AT 12 MPH AT IGNITION...OTHERWISE
                    NORTHEAST WINDS 7 TO 12 MPH.
HAINES INDEX........4 OR LOW AT IGNITION...MAX 4.
SMOKE DISPERSAL.....GOOD TO EXCELLENT (58200-103700) INCREASING TO
                    EXCELLENT (69600-115000) LATE IN THE
                    MORNING...THEN DECREASING TO GOOD (57600) LATE
                    IN THE AFTERNOON.
MIXING HEIGHT.......2600-4200 FT AGL INCREASING TO 5000-6800 FT AGL
                    IN THE LATE MORNING AND AFTERNOON.
MIXING WINDS........NORTHEAST 21 TO 30 MPH DECREASING TO 12 TO 18
                    MPH EARLY IN THE AFTERNOON.

TIME (CDT)      8 AM   10 AM  NOON   2 PM   4 PM   6 PM
SKY (%).........MCLDY  PCLDY  MCLEAR MCLEAR MCLEAR MCLEAR
WEATHER COV.....
WEATHER TYPE....NONE   NONE   NONE   NONE   NONE   NONE
TEMP............43     48     51     54     55     54
RH..............71     49     37     29     25     28
20 FT WIND......N 11   N 11   N 9    N 8    NE 7   NE 5
20 FT WIND GUST.20     20     15     15     15     10
HAINES INDEX....3      4      3      3      3      3

.TONIGHT...

SKY/WEATHER.........PARTLY CLOUDY.
TEMPERATURE.........MIN 33.
RH..................MAX 69 PERCENT.
WIND (20 FT)........EAST WINDS AROUND 5 MPH EARLY IN THE EVENING
                    BECOMING LIGHT...THEN BECOMING EAST AROUND 5
                    MPH EARLY IN THE MORNING.
SMOKE DISPERSAL.....POOR TO GOOD (1700-50300).

.FRIDAY...

SKY/WEATHER.........PARTLY SUNNY.
TEMPERATURE.........MAX 55.
RH..................MIN 32 PERCENT.
WIND (20 FT)........EAST WINDS 10 TO 15 MPH.
HAINES INDEX........3 TO 4 OR OR VERY LOW TO OR LOW.
SMOKE DISPERSAL.....POOR TO GOOD (3800-50800) INCREASING TO
                    EXCELLENT (60600-101400) IN THE LATE MORNING
                    AND AFTERNOON.

$$
FORECASTER...GRIESINGER
REQUESTED BY...MARK CLEVELAND
TYPE OF REQUEST...PRESCRIBED
.TAG 20120426.RAILR.01/MPX