FNUS73 KUNR 261542
FWSUNR

SPOT FORECAST FOR WHOOPUP...SD-SDS
NATIONAL WEATHER SERVICE RAPID CITY SD
942 AM MDT TUE JUL 26 2011

FORECAST IS BASED ON IGNITION TIME OF 0830 MDT ON JULY 26.
IF CONDITIONS BECOME UNREPRESENTATIVE CONTACT THE
NATIONAL WEATHER SERVICE OFFICE IN RAPID CITY.

.DISCUSSION...A TROUGH OF LOW PRESSURE WILL REMAIN NEARLY
STATIONARY JUST EAST OF THE FIRE TODAY. THIS WILL CAUSE LIGHT WINDS AT
THE FIRE WITH A SLIGHT SHIFT IN THE WINDS TOWARD THE SOUTHWEST AND
WEST LATER THIS AFTERNOON. SCATTERED THUNDERSTORMS WILL DEVELOP
THIS AFTERNOON. THE MAIN THREAT FROM ANY STORM WOULD BE STRONG AND
ERRATIC WINDS.

.TODAY...

SKY/WEATHER.........CLOUDY. ISOLATED SHOWERS AND THUNDERSTORMS
                    IN THE AFTERNOON.
TEMPERATURE.........MAX 87.
RH..................MIN 30 PERCENT.
WIND (20 FT)........SOUTHEAST WIND 0 TO 3 MPH SHIFTING SOUTHWEST
                    AT 0 TO 4 MPH AROUND 1100 AM THEN WEST AROUND
                    300 PM.
CWR.................0 PERCENT.
LAL.................1 UNTIL 1200...THEN 2.
HAINES INDEX........6 OR HIGH POTENTIAL FOR LARGE PLUME DOMINATED
                    FIRE GROWTH.
MIXING HEIGHT.......11000 TO 13300 FT AGL.
TRANSPORT WINDS.....SOUTHEAST 2 TO 4 MPH SHIFTING TO THE SOUTHWEST 4 TO
                    8 MPH AROUND 1100 AM THE MORNING...THEN INCREASING TO
                    SOUTHWEST 12 TO 20 MPH THIS AFTERNOON.
SMOKE DISPERSAL.....FAIR INCREASING TO EXCELLENT.

.TONIGHT...

SKY/WEATHER.........BECOMING PARTLY CLOUDY. SCATTERED SHOWERS AND
                    THUNDERSTORMS IN THE EVENING...THEN AN ISOLATED
                    SHOWER OR THUNDERSTORMS AFTER MIDNIGHT.
TEMPERATURE.........MIN 60.
RH..................MAX 75 PERCENT.
WIND (20 FT)........WEST WINDS 5 TO 12 MPH IN THE EVENING BECOMING
                    LIGHT.
CWR.................10 PERCENT.
LAL.................3 UNTIL 2400...THEN 2.
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......200 TO 700 FT AGL.
TRANSPORT WINDS.....SOUTHWEST 15 TO 20 MPH BECOMING WEST 5 TO 10
                    MPH AROUND 700 PM. THEN SHIFTING TO THE
                    NORTHEAST 5 TO 8 MPH AFTER MIDNIGHT SHIFTING TO THE
                    NORTHWEST AROUND 400 AM.
SMOKE DISPERSAL.....EXCELLENT DECREASING TO POOR BY 1000 PM.

.WEDNESDAY...

SKY/WEATHER.........PARTLY CLOUDY.
TEMPERATURE.........MAX 89.
RH..................MIN 25 PERCENT.
WIND (20 FT)........SOUTHWEST WINDS 3 TO 7 MPH.
CWR.................0 PERCENT.
LAL.................1.
HAINES INDEX........6 OR HIGH POTENTIAL FOR LARGE PLUME DOMINATED
                    FIRE GROWTH.
MIXING HEIGHT.......9800 TO 11000 FT AGL.
TRANSPORT WINDS.....SOUTHWEST 4 TO 10 MPH.
SMOKE DISPERSAL.....FAIR INCREASING TO GOOD IN THE AFTERNOON.

$$
FORECASTER...MS
REQUESTED BY...SD-SDS
TYPE OF REQUEST...PRESCRIBED
.TAG 20110726.WHOOP.01/UNR