FNUS73 KMPX 181246
FWSMPX

SPOT FORECAST FOR GREY CLOUD DUNES SNA...MN DNR
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
746 AM CDT MON APR 18 2011

FORECAST IS BASED ON IGNITION TIME OF 1000 CDT ON APRIL 18.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...

COOL AND GRAY DAY ANTICIPATED AT THE BURN SITE TODAY AS AMPLE CLOUD
COVER REMAINS PARKED OVER THE AREA IN RESPONSE TO A DEVELOPING
WEATHER SYSTEM CURRENTLY OVER THE ROCKIES. SFC HIGH TO BE CENTERED
NEAR LAKE SUPERIOR WILL SUPPLY THE SITE WITH EAST WINDS MAINLY 10 MPH
OR LESS. DESPITE COOLER TEMPS...DRIER AIR COMING IN FROM THE EAST WILL
ALLOW AFTERNOON HUMIDITIES TO DROP INTO THE 40S. PRECIPITATION SHOULD
HOLD OFF UNTIL TUESDAY AFTERNOON AT THE EARLIEST.

.TODAY...

SKY/WEATHER.........MOSTLY CLOUDY.
TEMPERATURE.........38 AT IGNITION...MAX 48.
RH..................59 PERCENT AT IGNITION...MIN 45 PERCENT.
WIND (20 FT)........WINDS EAST AT 4 MPH AT IGNITION...OTHERWISE
                    LIGHT WINDS.
HAINES INDEX........3 OR VERY LOW AT IGNITION...MAX 3.
SMOKE DISPERSAL.....FAIR TO GOOD (16200-30500).
MIXING HEIGHT.......1900-3800 FT AGL INCREASING TO 4500-5900 FT AGL
                    IN THE LATE MORNING AND AFTERNOON.
MIXING WINDS........EAST 6 TO 12 MPH.

TIME (CDT)      8 AM   10 AM  NOON   2 PM   4 PM   6 PM
SKY (%).........CLOUDY MCLDY  MCLDY  MCLDY  MCLDY  CLOUDY
WEATHER COV.....
WEATHER TYPE....NONE   NONE   NONE   NONE   NONE   NONE
TEMP............35     38     43     46     48     47
RH..............64     59     49     45     46     49
20 FT WIND......E 3    E 4    E 4    E 4    SE 3   E 3
20 FT WIND GUST.5      5      5      5      5      5
HAINES INDEX....3      3      3      3      2      3

.TONIGHT...

SKY/WEATHER.........MOSTLY CLOUDY. SLIGHT CHANCE OF SNOW AFTER
                    MIDNIGHT. CHANCE OF SNOW 20 PERCENT.
TEMPERATURE.........MIN 34.
RH..................MAX 78 PERCENT.
WIND (20 FT)........LIGHT WINDS.
SMOKE DISPERSAL.....POOR TO FAIR (1600-29400).

.TUESDAY...

SKY/WEATHER.........CLOUDY. CHANCE OF SNOW IN THE MORNING...THEN
                    RAIN...SNOW AND CHANCE OF SLEET IN THE
                    AFTERNOON. CHANCE OF PRECIPITATION 80 PERCENT.
TEMPERATURE.........MAX 43.
RH..................MIN 57 PERCENT.
WIND (20 FT)........LIGHT WINDS BECOMING EAST 7 TO 12 MPH.
HAINES INDEX........2 TO 3 OR OR VERY LOW.
SMOKE DISPERSAL.....POOR TO GOOD (1800-45500) INCREASING TO
                    EXCELLENT (109200-113500).

$$
FORECASTER...GRIESINGER
REQUESTED BY...RUSSELL SMITH
TYPE OF REQUEST...PRESCRIBED
.TAG 20110418.GREYC.01/MPX