FNUS73 KUNR 071203
FWSUNR

SPOT FORECAST FOR PCK RX...USFS
NATIONAL WEATHER SERVICE RAPID CITY SD
603 AM MDT THU MAY 7 2009

FORECAST IS BASED ON IGNITION TIME OF 0605 MDT ON MAY 07.
IF CONDITIONS BECOME UNREPRESENTATIVE CONTACT THE
NATIONAL WEATHER SERVICE OFFICE IN RAPID CITY.

.DISCUSSION...PARTY CLOUDY SKIES ARE EXPECTED TODAY WITH SCATTERED
AFTERNOON AND EVENING THUNDERSTORMS POSSIBLE. MINIMUM RELATIVE
HUMIDITIES WILL BE 30 TO 35 PERCENT.

A STRONG UPPER LEVEL DISTURBANCE WILL BRING MORE WIDESPREAD SHOWERS
AND THUNDERSTORMS LATE TONIGHT INTO FRIDAY...ALONG WITH COOLER
TEMPERATURES. FRIDAY WILL BE WINDY WITH NORTHWEST WINDS INCREASING
TO 15 TO 25 MPH. WETTING RAINS ARE LIKELY LATE TONIGHT AND FRIDAY.

.TODAY...

SKY/WEATHER.........PARTLY SUNNY. ISOLATED SHOWERS AND
                    THUNDERSTORMS IN THE AFTERNOON.
TEMPERATURE.........42 AT IGNITION...MAX 64.
RH..................82 PERCENT AT IGNITION...MIN 32 PERCENT.
WIND (20 FT)........WINDS WEST AT 8 MPH AT IGNITION...OTHERWISE
                    NORTHWEST WINDS 6 TO 14 MPH.
CWR.................15 PERCENT.
LAL.................1 UNTIL 1200...THEN 2.
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......8200 TO 9200 FT AGL.
TRANSPORT WINDS.....WEST 7 TO 15 MPH INCREASING TO 17 TO 22 MPH
                    EARLY IN THE AFTERNOON.
SMOKE DISPERSAL.....FAIR INCREASING TO EXCELLENT.

.TONIGHT...

SKY/WEATHER.........MOSTLY CLOUDY. SCATTERED SHOWERS AND
                    THUNDERSTORMS IN THE EVENING...THEN NUMEROUS
                    SHOWERS AND THUNDERSTORMS AFTER MIDNIGHT.
TEMPERATURE.........MIN 35.
RH..................MAX 82 PERCENT.
WIND (20 FT)........NORTHWEST WINDS 8 TO 14 MPH.
CWR.................51 PERCENT.
LAL.................3.
HAINES INDEX........2 OR VERY LOW POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......200 TO 700 FT AGL.
TRANSPORT WINDS.....NORTHWEST 16 TO 23 MPH DECREASING TO 9 TO 16
                    MPH IN THE LATE EVENING AND OVERNIGHT.
SMOKE DISPERSAL.....VERY GOOD DECREASING TO POOR.

.FRIDAY...

SKY/WEATHER.........PARTLY SUNNY. SCATTERED RAIN SHOWERS IN THE
                    MORNING.
TEMPERATURE.........MAX 51.
RH..................MIN 48 PERCENT.
WIND (20 FT)........NORTHWEST WINDS 12 TO 21 MPH INCREASING TO 22
                    TO 23 MPH IN THE AFTERNOON.
CWR.................34 PERCENT.
LAL.................1.
HAINES INDEX........2 OR VERY LOW POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......9300 TO 10300 FT AGL.
TRANSPORT WINDS.....WEST 16 TO 25 MPH INCREASING TO NORTHWEST 30 TO
                    39 MPH IN THE AFTERNOON.
SMOKE DISPERSAL.....FAIR INCREASING TO EXCELLENT.

$$
FORECASTER...LC
REQUESTED BY...MELODY
TYPE OF REQUEST...PRESCRIBED
.TAG 20090507.PCKRX.01/UNR