FNUS73 KMPX 261231
FWSMPX

SPOT FORECAST FOR ST  CROIX...MN DNR
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
731 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 25 PERCENT. NE
WINDS WILL BE STRONGEST THROUGH 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.........51 AT IGNITION...MAX 56.
RH..................42 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 (55800-101900) INCREASING TO
                    EXCELLENT (70700-111500) LATE IN THE
                    MORNING...THEN DECREASING TO GOOD (59900) LATE
                    IN THE AFTERNOON.
MIXING HEIGHT.......2500-4300 FT AGL INCREASING TO 5100-6700 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 MCLEAR
WEATHER COV.....
WEATHER TYPE....NONE   NONE   NONE   NONE   NONE   NONE
TEMP............48     51     54     56     56     54
RH..............54     42     32     27     26     30
20 FT WIND......N 10   N 11   N 8    NE 8   NE 7   NE 5
20 FT WIND GUST.15     20     15     15     15     10
HAINES INDEX....4      4      3      3      3      3

.TONIGHT...

SKY/WEATHER.........PARTLY CLOUDY.
TEMPERATURE.........MIN 34.
RH..................MAX 66 PERCENT.
WIND (20 FT)........EAST WINDS 5 TO 6 MPH.
SMOKE DISPERSAL.....POOR TO GOOD (2500-52400) DECREASING TO POOR
                    (2100-3400) AFTER MIDNIGHT.

.FRIDAY...

SKY/WEATHER.........MOSTLY CLOUDY. CHANCE OF PRECIPITATION 20
                    PERCENT.
TEMPERATURE.........MAX 55.
RH..................MIN 33 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 (3800-50300) INCREASING TO GOOD TO
                    EXCELLENT (59900-100000) IN THE LATE MORNING
                    AND AFTERNOON.

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