FNUS73 KUNR 191430
FWSUNR

SPOT FORECAST FOR PCK RX...USFS
NATIONAL WEATHER SERVICE RAPID CITY SD
830 AM MDT MON APR 19 2010

.DISCUSSION...AN UPPER LEVEL DISTURBANCE ACROSS MONTANA WILL DROP
THROUGH WESTERN SOUTH DAKOTA THIS AFTERNOON AND EVENING. THIS WILL
BRING SCATTERED SHOWERS AND THUNDERSTORMS ACROSS THE BLACK HILLS.
ERRATIC AND GUSTY WINDS ARE POSSIBLE AROUND THE THUNDERSTORMS.
HIGHS TODAY WILL BE AROUND 60 WITH MINIMUM RELATIVE HUMIDITY
AROUND 45 PERCENT.

.TODAY...
SKY/WEATHER.........PARTLY SUNNY. SCATTERED SHOWERS AND
                    THUNDERSTORMS IN THE AFTERNOON.
MAX TEMPERATURE.....61.
MIN HUMIDITY........42-47 PERCENT.
WIND (20 FT)........WINDS VARIABLE 1-3 MPH BECOMING UPSLOPE 3-5 MPH.
CWR.................0 PERCENT INCREASING TO 15 PERCENT IN THE
                    AFTERNOON.
LAL.................1 UNTIL 1200...THEN 3.
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......5500 TO 6500 FT AGL.
TRANSPORT WINDS.....VARIABLE 5 MPH BECOMING NORTHWEST 5 TO 10 MPH.
SMOKE DISPERSAL.....BECOMING FAIR.

.TONIGHT...
SKY/WEATHER.........MOSTLY CLOUDY. CHANCE OF SHOWERS AND
                    THUNDERSTORMS IN THE EVENING...THEN SLIGHT
                    CHANCE OF SHOWERS AND THUNDERSTORMS AFTER
                    MIDNIGHT.
MIN TEMPERATURE.....35-39.
MAX HUMIDITY........AROUND 95 PERCENT.
WIND (20 FT)........SOUTHEAST WINDS 3 TO 6 MPH EARLY IN THE EVENING
                    BECOMING LIGHT.
CWR.................10 PERCENT.
LAL.................3 UNTIL 2400...THEN 2.
HAINES INDEX........2 OR VERY LOW POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......400 TO 900 FT AGL.
TRANSPORT WINDS.....EAST 6 TO 7 MPH.
SMOKE DISPERSAL.....POOR.

.TUESDAY...

SKY/WEATHER.........PARTLY SUNNY.
MAX TEMPERATURE.....AROUND 58.
MIN HUMIDITY........52-57 PERCENT.
WIND (20 FT)........LIGHT WINDS BECOMING SOUTHEAST 5 TO 10 MPH IN
                    THE LATE MORNING AND AFTERNOON.
CWR.................10 PERCENT.
LAL.................1.
HAINES INDEX........2 OR VERY LOW POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......3500 TO 4500 FT AGL.
TRANSPORT WINDS.....EAST 5 TO 10 MPH.
SMOKE DISPERSAL.....POOR.

$$
FORECASTER...NWS
REQUESTED BY...RAFFERTY
TYPE OF REQUEST...PRESCRIBED
.TAG 20100419.PCKRX.02/UNR