FNUS73 KARX 121221
FWSARX

SPOT FORECAST FOR OSR 23B...USFWS
NATIONAL WEATHER SERVICE LA CROSSE WI
721 AM CDT TUE MAY 12 2009

FORECAST IS BASED ON IGNITION TIME OF 1100 CDT ON MAY 12.
IF CONDITIONS BECOME UNREPRESENTATIVE CONTACT THE
NATIONAL WEATHER SERVICE IN LA CROSSE.

.DISCUSSION...STRONG SOUTHERLY WINDS WILL BE SEEN ACROSS THE
DISTRICTS TODAY IN RESPONSE TO A STRENGTHENING PRESSURE GRADIENT
BETWEEN A DEPARTING AREA OF HIGH PRESSURE AND A DEVELOPING LOW
PRESSURE SYSTEM OVER THE PLAINS. THE WINDS ARE EXPECTED TO BLOW AT
15 TO 25 MPH AND GUSTS TO AROUND 35 MPH. THEN...AS THE LOW PRESSURE SYSTEM
AND ASSOCIATED COLD FRONT PROGRESS TOWARDS THE AREA THERE WILL BE
CHANCES FOR SHOWERS AND THUNDERSTORMS BEGINNING LATER THIS
AFTERNOON FROM NORTHERN WISCONSIN INTO SOUTH CENTRAL MINNESOTA.
THE BETTER CHANCES HOWEVER WILL COME TONIGHT AND THEN AGAIN ON
WEDNESDAY AS THE COLD FRONT MOVES THROUGH THE REGION. COOLER AIR
ALONG WITH BREEZY NORTHWEST WINDS WILL TAKE PLACE ACROSS THE
DISTRICTS FOR WEDNESDAY NIGHT AND THURSDAY IN THE WAKE OF THE
FRONT. ANOTHER UPPER LEVEL DISTURBANCE AND ASSOCIATED FRONTAL
BOUNDARY WILL PASS THROUGH THE AREA LATER ON IN THE WEEK...BRINGING
MORE CHANCES FOR RAIN ON FRIDAY AND FRIDAY NIGHT. THEN BEHIND THIS
SYSTEM A DRY WEEKEND IS EXPECTED WITH TEMPERATURES A BIT BELOW
NORMAL...IN THE 60S WITH THE WEEKLY RELATIVE HUMIDITIES BOTTOMING
OUT IN THE 30S ON SUNDAY.


.TODAY...

SKY/WEATHER.........PARTLY SUNNY.
TEMPERATURE.........61 AT IGNITION...MAX 71.
RH..................48 PERCENT AT IGNITION...MIN 36.
WIND (20 FT)........WINDS SOUTH AT 18 MPH AT IGNITION...OTHERWISE
                    SOUTH WINDS 6 TO 11 MPH INCREASING TO 14 TO 19
                    MPH WITH GUSTS TO AROUND 30 MPH IN THE LATE
                    MORNING AND AFTERNOON.
CWR.................NONE.
HAINES INDEX........4 OR LOW AT IGNITION...MAX 5.
SMOKE DISPERSAL.....EXCELLENT /79800 KNOT-FT/ AT IGNITION.
                    MAX...EXCELLENT /178000 KNOT-FT/.

.TONIGHT...

SKY/WEATHER.........MOSTLY CLOUDY. CHANCE OF SHOWERS AND
                    THUNDERSTORMS IN THE EVENING...THEN SHOWERS AND
                    THUNDERSTORMS LIKELY AFTER MIDNIGHT. CHANCE OF
                    PRECIPITATION 70 PERCENT.
TEMPERATURE.........MIN 50.
RH..................MAX 100 PERCENT.
WIND (20 FT)........SOUTH WINDS 11 TO 16 MPH WITH GUSTS TO AROUND
                    25 MPH.
CWR.................42 PERCENT.
HAINES INDEX........MAX 3.
SMOKE DISPERSAL.....MIN...GOOD /41100 KNOT-FT/.

.WEDNESDAY...

SKY/WEATHER.........MOSTLY CLOUDY. OCCASIONAL SHOWERS AND
                    THUNDERSTORMS. CHANCE OF PRECIPITATION 80
                    PERCENT.
TEMPERATURE.........MAX 67.
RH..................MIN 63 PERCENT.
WIND (20 FT)........SOUTH WINDS 12 TO 17 MPH SHIFTING TO THE
                    SOUTHWEST 11 TO 16 MPH LATE IN THE AFTERNOON.
CWR.................80 PERCENT.
HAINES INDEX........MAX 3.
SMOKE DISPERSAL.....MAX...EXCELLENT /112400 KNOT-FT/.

$$
FORECASTER...JR
REQUESTED BY...TATE FISCHER
TYPE OF REQUEST...PRESCRIBED
.TAG 20090512.OSR23.01/ARX