FNUS73 KMPX 261235
FWSMPX

SPOT FORECAST FOR GREY CLOUD DUNES...MN DNR
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
735 AM CDT THU APR 26 2012

FORECAST IS BASED ON IGNITION TIME OF 1100 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 NORTH TO
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 30 PERCENT. NE
WINDS WILL BE STRONGEST INTO THE EARLY AFTERNOON...WITH 8 TO 12 MPH WINDS
WITH GUSTS TO 20 MPH GIVING WAY TO 5 TO 10 MPH WINDS LATE THIS AFTERNOON.

.TODAY...

SKY/WEATHER.........PARTLY SUNNY.
TEMPERATURE.........51 AT IGNITION...MAX 56.
RH..................45 PERCENT AT IGNITION...MIN 28 PERCENT.
WIND (20 FT)........WINDS NORTH AT 11 MPH AT IGNITION...OTHERWISE
                    NORTHEAST WINDS 7 TO 12 MPH.
HAINES INDEX........4 OR LOW AT IGNITION...MAX 4.
SMOKE DISPERSAL.....GOOD TO EXCELLENT (55600-105200) INCREASING TO
                    EXCELLENT (68800-109000) IN THE
                    AFTERNOON...THEN DECREASING TO GOOD (58100)
                    LATE IN THE AFTERNOON.
MIXING HEIGHT.......2500-4200 FT AGL INCREASING TO 5100-6500 FT AGL
                    IN THE LATE MORNING AND AFTERNOON.
MIXING WINDS........NORTHEAST 21 TO 29 MPH DECREASING TO 13 TO 18
                    MPH EARLY IN THE AFTERNOON.

TIME (CDT)      9 AM   11 AM  1 PM   3 PM   5 PM   7 PM
SKY (%).........PCLDY  PCLDY  MCLEAR MCLEAR MCLEAR PCLDY
WEATHER COV.....
WEATHER TYPE....NONE   NONE   NONE   NONE   NONE   NONE
TEMP............48     51     54     56     56     54
RH..............58     45     35     29     28     30
20 FT WIND......N 9    N 10   N 8    NE 8   NE 7   NE 6
20 FT WIND GUST.15     15     15     15     15     10
HAINES INDEX....4      4      3      3      3      3

.TONIGHT...

SKY/WEATHER.........PARTLY CLOUDY.
TEMPERATURE.........MIN 35.
RH..................MAX 64 PERCENT.
WIND (20 FT)........EAST WINDS 5 TO 7 MPH EARLY IN THE EVENING
                    BECOMING LIGHT...THEN BECOMING EAST AROUND 5
                    MPH LATE IN THE EVENING.
SMOKE DISPERSAL.....POOR TO GOOD (2500-51400).

.FRIDAY...

SKY/WEATHER.........MOSTLY CLOUDY. CHANCE OF RAIN SHOWERS. CHANCE
                    OF RAIN 30 PERCENT.
TEMPERATURE.........MAX 55.
RH..................MIN 35 PERCENT.
WIND (20 FT)........EAST WINDS 10 TO 15 MPH.

$$
FORECASTER...GRIESINGER
REQUESTED BY...RUSSELL SMITH
TYPE OF REQUEST...PRESCRIBED
.TAG 20120426.GREYC.01/MPX