FNUS73 KUNR 211214
FWSUNR

SPOT FORECAST FOR PCK RX...USFS
NATIONAL WEATHER SERVICE RAPID CITY SD
614 AM MDT TUE SEP 21 2010

FORECAST IS BASED ON IGNITION TIME OF 0700 MDT ON SEPTEMBER 21.
IF CONDITIONS BECOME UNREPRESENTATIVE CONTACT THE
NATIONAL WEATHER SERVICE OFFICE IN RAPID CITY.

.DISCUSSION...HIGH PRESSURE WILL MOVE EAST OF THE AREA
TODAY...ALLOWING RETURN FLOW AND SOUTHEAST WINDS TO INCREASE. A
STRONG STORM SYSTEM WILL BRING INCREASING CHANCES FOR SHOWERS AND
THUNDERSTORMS WEDNESDAY AND THURSDAY...WITH WETTING RAINS LIKELY
WEDNESDAY NIGHT AND THURSDAY.

.TODAY...

SKY/WEATHER.........PARTLY CLOUDY...MID/HIGH CLOUDS STREAMING BY.
MAX TEMPERATURE.....AROUND 70.
MIN HUMIDITY........35 PERCENT.
WIND (20 FT)........SOUTHWEST WINDS LESS THAN 8 MPH BECOMING
                    SOUTHEAST 10 TO 15 MPH BY EARLY AFTERNOON.
CWR.................0 PERCENT.
LAL.................1.
HAINES INDEX........2 OR VERY LOW POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......5000 FT AGL.
TRANSPORT WINDS.....SOUTH AROUND 15 MPH.
SMOKE DISPERSAL.....BECOMING GOOD BY LATE MORNING.

.TONIGHT...

SKY/WEATHER.........PARTLY CLOUDY.
MIN TEMPERATURE.....AROUND 38.
MAX HUMIDITY........100 PERCENT.
WIND (20 FT)........SOUTH WINDS 5 TO 10 MPH.
CWR.................0 PERCENT.
LAL.................1.
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......200 FT AGL.
TRANSPORT WINDS.....SOUTH AROUND 15 MPH.
SMOKE DISPERSAL.....POOR.

.WEDNESDAY...

SKY/WEATHER.........MOSTLY CLOUDY. CHANCE OF SHOWERS AND
                    THUNDERSTORMS IN THE AFTERNOON.
MAX TEMPERATURE.....AROUND 65.
MIN HUMIDITY........43 PERCENT.
WIND (20 FT)........NORTH WINDS 6 TO 12 MPH.
CWR.................15 PERCENT.
LAL.................3.
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED
                    FIRE GROWTH.
MIXING HEIGHT.......2500 FT AGL.
TRANSPORT WINDS.....NORTHWEST AROUND 10 MPH.
SMOKE DISPERSAL.....POOR.

$$
FORECASTER...EH
REQUESTED BY...BRIAN RAFFERTY
TYPE OF REQUEST...PRESCRIBED
.TAG 20100921.PCKRX.02/UNR