FNUS73 KMPX 221219
FWSMPX

SPOT FORECAST FOR HARVEY...FWS
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
719 AM CDT WED APR 22 2009

FORECAST IS BASED ON IGNITION TIME OF 0735 CDT ON APRIL 22.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...
HIGH PRESSURE WILL MOVE ACROSS THE AREA TODAY...AND BRING LIGHT NORTHWEST
WINDS. TEMPERATURES WILL WARM INTO THE LOW 60S AT THE BURN SITE...AND
COMBINE WITH DECREASING RELATIVE HUMIDITIES TO BELOW 25 PERCENT
THIS AFTERNOON. THE HIGH WILL MOVE OFF BY THIS EVENING...AND
CAUSE WINDS TO SHIFT TO SOUTHEASTERLY IN DIRECTION FOR TONIGHT. SOUTHERLY
WINDS WILL CONTINUE INCREASING ON THURSDAY...WITH GUSTS TO BETWEEN 25 AND
30 MPH POSSIBLE DURING THE AFTERNOON.

.TODAY...

SKY/WEATHER.........MOSTLY SUNNY.
TEMPERATURE.........39 AT IGNITION...MAX 63.
RH..................85 PERCENT AT IGNITION...MIN 23 PERCENT.
WIND (20 FT)........WINDS NORTHWEST AT 5 MPH AT
                    IGNITION...OTHERWISE NORTHWEST WINDS 5 TO 6 MPH
                    SHIFTING TO THE SOUTHEAST 5 TO 7 MPH EARLY IN
                    THE AFTERNOON.
HAINES INDEX........4 OR LOW AT IGNITION...MAX 5.
SMOKE DISPERSAL.....POOR TO GOOD (2100-47400) INCREASING TO FAIR TO
                    GOOD (15000-52700) IN THE AFTERNOON.
MIXING HEIGHT.......300-2000 FT AGL INCREASING TO 4800-5800 FT AGL.
MIXING WINDS........NORTHWEST 6 TO 13 MPH SHIFTING TO THE SOUTH
                    AROUND 8 MPH LATE IN THE AFTERNOON.

TIME (CDT)      7 AM   9 AM   11 AM  1 PM   3 PM   5 PM
SKY (%).........MCLEAR MCLEAR PCLDY  PCLDY  PCLDY  MCLEAR
WEATHER COV.....
WEATHER TYPE....NONE   NONE   NONE   NONE   NONE   NONE
TEMP............35     44     52     58     62     63
RH..............85     55     38     29     24     23
20 FT WIND......NW 5   NW 5   NW 5   N 5    SW 5   S 5
20 FT WIND GUST.
HAINES INDEX....4      5      5      5      4      3

.TONIGHT...

SKY/WEATHER.........PARTLY CLOUDY.
TEMPERATURE.........MIN 47.
RH..................MAX 76 PERCENT.
WIND (20 FT)........SOUTHEAST WINDS 6 TO 11 MPH.
SMOKE DISPERSAL.....POOR TO GOOD (4200-42000).

.THURSDAY...

SKY/WEATHER.........PARTLY SUNNY.
TEMPERATURE.........MAX 82.
RH..................MIN 32 PERCENT.
WIND (20 FT)........SOUTH WINDS 16 TO 21 MPH.
HAINES INDEX........5 TO 6 OR OR MODERATE TO OR HIGH.
SMOKE DISPERSAL.....POOR TO GOOD (5100-39700) INCREASING TO GOOD TO
                    EXCELLENT (57700-78600) LATE IN THE
                    MORNING...THEN INCREASING TO EXCELLENT
                    (118200-160700) EARLY IN THE AFTERNOON..THEN
                    INCREASING TO EXCELLENT (200500) LATE IN THE
                    AFTERNOON.
MIXING HEIGHT.......300-2000 FT AGL INCREASING TO 2600-4500 FT AGL
                    LATE IN THE MORNING...THEN INCREASING TO
                    5700-7000 FT AGL EARLY IN THE AFTERNOON
                    DECREASING TO 4800 FT AGL LATE IN THE AFTERNOON.
MIXING WINDS........SOUTH 24 TO 32 MPH SHIFTING TO THE SOUTHWEST 35
                    TO 38 MPH IN THE AFTERNOON.

$$
FORECASTER...SCHMIT
REQUESTED BY...USFWS LITCHFIELD WMD
TYPE OF REQUEST...PRESCRIBED
.TAG 20090422.HARVE.01/MPX