FNUS73 KUNR 131857
FWSUNR

SPOT FORECAST FOR PCK RX...USFS
NATIONAL WEATHER SERVICE RAPID CITY SD
1257 PM MDT MON SEP 13 2010

FORECAST IS BASED ON IGNITION TIME OF 0800 MDT ON SEPTEMBER 14.
IF CONDITIONS BECOME UNREPRESENTATIVE CONTACT THE
NATIONAL WEATHER SERVICE OFFICE IN RAPID CITY.

.DISCUSSION...QUIET WEATHER WILL CONTINUE TONIGHT AND
TUESDAY...BUT CHANCES FOR PRECIPITATION WILL INCREASE THROUGH
TUESDAY NIGHT. TOMORROW...WINDS WILL START THE DAY LIGHT AND
VARIABLE...THEN INCREASE FROM THE EAST TO SOUTHEAST THROUGH THE
MID TO LATE MORNING. SMOKE DISPERSAL WILL BE POOR MOST OF THE
DAY...BUT SHOULD BECOME FAIR IN THE MID TO LATE AFTERNOON. A STORM
SYSTEM WILL APPROACH THE AREA FROM THE WEST TUESDAY...AND BRING A
A GOOD CHANCE FOR SHOWERS AND STORMS BY MID EVENING AND CONTINUE
THROUGH THE NIGHT.

.TONIGHT...

SKY/WEATHER.........PARTLY CLOUDY.
TEMPERATURE.........MIN 42.
RH..................MAX 89 PERCENT.
WIND (20 FT)........WINDS LIGHT AND VARIABLE.
CWR.................0 PERCENT.
LAL.................1.
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED
                    FIRE GROWTH.
MIXING HEIGHT.......900 TO 1400 FT AGL.
TRANSPORT WINDS.....NORTHWEST 2 TO 7 MPH.
SMOKE DISPERSAL.....POOR.

.TUESDAY...

SKY/WEATHER.........PARTLY SUNNY.
TEMPERATURE.........50 AT IGNITION...MAX 74.
RH..................77 PERCENT AT IGNITION...MIN 38 PERCENT.
WIND (20 FT)........WINDS LIGHT AND VARIABLE...BECOMING EAST TO
                    SOUTHEAST 8 TO 15 MPH IN THE LATE MORNING
                    AND AFTERNOON.
CWR.................0 PERCENT.
LAL.................1.
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED
                    FIRE GROWTH.
MIXING HEIGHT.......2000 TO 3000 FT AGL.
TRANSPORT WINDS.....NORTHEAST 2 TO 8 MPH INCREASING TO SOUTHEAST 12
                    TO 21 MPH IN THE LATE MORNING AND AFTERNOON.
SMOKE DISPERSAL.....POOR IN THE MORNING...BECOMING FAIR IN THE MID
                    AFTERNOON.

.TUESDAY NIGHT...

SKY/WEATHER.........CLOUDY. CHANCE OF SHOWERS AND THUNDERSTORMS IN
                    THE EVENING...THEN SHOWERS AND THUNDERSTORMS
                    LIKELY AFTER MIDNIGHT.
TEMPERATURE.........MIN 40.
RH..................MAX 100 PERCENT.
WIND (20 FT)........WEST WINDS 6 TO 12 MPH.
CWR.................44 PERCENT.
LAL.................4.
HAINES INDEX........2 OR VERY LOW POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......600 TO 1100 FT AGL.
TRANSPORT WINDS.....SOUTH 22 TO 30 MPH BECOMING NORTHWEST 8 TO 17
                    MPH EARLY IN THE MORNING.
SMOKE DISPERSAL.....POOR.

$$
FORECASTER...CALDERON
REQUESTED BY...PLOCK
TYPE OF REQUEST...PRESCRIBED
.TAG 20100914.PCKRX.01/UNR