FNUS75 KCYS 261326
FWSCYS

SPOT FORECAST FOR THOMPSON FIRE...CONVERSE COUNTY
NATIONAL WEATHER SERVICE CHEYENNE WY
726 AM MDT FRI AUG 26 2011

FORECAST IS BASED ON REQUEST TIME OF 0900 MDT ON AUGUST 26.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...A COLD FRONT WILL MOVE SOUTH AND ACROSS AREAS EAST
OF THE LARAMIE RANGE THIS MORNING. BEHIND THE FRONT WILL BE SLIGHTLY
COOLER TEMPERATURES AND A WIND SHIFT FROM THE NORTHEAST AND
EVENTUALLY SOUTHEAST THIS AFTERNOON. INCREASED MOISTURE AT THE SURFACE
AND IN THE MID AND UPPER LEVELS WILL PRODUCE SCATTERED SHOWERS AND
THUNDERSTORMS THIS AFTERNOON AND EARLY TONIGHT AND AGAIN ON
SATURDAY. MANY OF THE STORMS DURING THOSE PERIODS WILL PRODUCE
BRIEF WIND GUSTS TO 45 MPH AS WELL AS WETTING RAINFALL. THE
FRONT WILL MOVE EAST AS A TROUGH TONIGHT AND SATURDAY BEFORE
ANOTHER COLD FRONT MOVES ACROSS THE DISTRICT ON SUNDAY. THE
TEMPERATURES WILL REMAIN ABOVE NORMAL THROUGH SATURDAY AND WILL
THEN BE COOLER FOR EARLY NEXT WEEK.


.TODAY...

SKY/WEATHER.........PARTLY CLOUDY (35-45 PERCENT). SCATTERED SHOWERS
                    AND THUNDERSTORMS IN THE AFTERNOON.
MAX TEMPERATURE.....AROUND 93.
MIN HUMIDITY........18 PERCENT.
WIND (20 FT)........UPSLOPE/UPVALLEY 5-9 MPH BECOMING SOUTHEAST 12
                    TO 16 MPH WITH GUSTS OF 20 TO 25 MPH IN THE AFTERNOON.
CWR.................10 PERCENT INCREASING TO 30 PERCENT IN THE
                    AFTERNOON.
LAL.................2.
MIXING HEIGHT.......7000 FT AGL INCREASING TO 10300 FT AGL IN THE
                    AFTERNOON.
TRANSPORT WINDS.....EAST AROUND 14 MPH.
SMOKE DISPERSAL.....FAIR TO EXCELLENT (21100-195000 KNOT-FT).
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED
                    FIRE GROWTH.

.TONIGHT...

SKY/WEATHER.........PARTLY CLOUDY (45-55 PERCENT). CHANCE OF
                    SHOWERS AND THUNDERSTORMS IN THE EVENING...THEN
                    SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS
                    AFTER MIDNIGHT.
MIN TEMPERATURE.....AROUND 62.
MAX HUMIDITY........70 PERCENT.
WIND (20 FT)........SOUTHEAST WINDS 8 TO 15 MPH. GUSTS UP TO 25 MPH
                    EARLY IN THE EVENING. WINDS DECREASING TO AROUND 10
                    MPH BY MIDNIGHT AND BECOMING SOUTH.
CWR.................30 PERCENT.
LAL.................3.
MIXING HEIGHT.......5700 FT AGL DECREASING TO 1100 FT AGL AFTER
                    MIDNIGHT.
TRANSPORT WINDS.....SOUTHEAST AROUND 17 MPH.
SMOKE DISPERSAL.....POOR TO EXCELLENT (10700-102700 KNOT-FT).
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED
                    FIRE GROWTH.

.SATURDAY...

SKY/WEATHER.........PARTLY CLOUDY (45-55 PERCENT). SCATTERED SHOWERS
                    AND THUNDERSTORMS IN THE AFTERNOON.
MAX TEMPERATURE.....AROUND 93.
MIN HUMIDITY........18 PERCENT.
WIND (20 FT)........UPSLOPE/UPVALLEY 5-9 MPH BECOMING SOUTH AROUND 10 MPH
                    LATE IN THE MORNING THEN WEST IN THE AFTERNOON. GUSTS
                    UP TO 15 MPH IN THE AFTERNOON.
CWR.................10 PERCENT INCREASING TO 30 PERCENT IN THE AFTERNOON.
LAL.................2.
MIXING HEIGHT.......5900 FT AGL INCREASING TO 10600 FT AGL IN THE
                    AFTERNOON.
TRANSPORT WINDS.....SOUTH AROUND 11 MPH.
SMOKE DISPERSAL.....GOOD TO EXCELLENT (59200-106300 KNOT-FT).
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED
                    FIRE GROWTH.

$$
FORECASTER...JAMSKI
REQUESTED BY...IC
TYPE OF REQUEST...WILDFIRE
.TAG 20110826.THOMP.02/CYS