FNUS73 KUNR 191911
FWSUNR

SPOT FORECAST FOR NEW UNDERWOOD RX...SDWFS
NATIONAL WEATHER SERVICE RAPID CITY SD
111 PM MDT MON APR 19 2010

FORECAST IS BASED ON IGNITION TIME OF 1400 MDT ON APRIL 19.
IF CONDITIONS BECOME UNREPRESENTATIVE CONTACT THE
NATIONAL WEATHER SERVICE OFFICE IN RAPID CITY.

.DISCUSSION...
AN UPPER LEVEL DISTURBANCE ACROSS MONTANA WILL DROP THROUGH
WESTERN SOUTH DAKOTA THIS AFTERNOON AND EVENING. THIS WILL
BRING ISOLATED SHOWERS AND THUNDERSTORMS TO THE AREA. ERRATIC AND
GUSTY WINDS ARE POSSIBLE AROUND THE THUNDERSTORMS. HIGHS TODAY WILL
BE AROUND 68 WITH MINIMUM RELATIVE HUMIDITY AROUND 42 PERCENT.

.REST OF TODAY...
SKY/WEATHER.........PARTLY SUNNY. ISOLATED SHOWERS AND
                    THUNDERSTORMS.
MAX TEMPERATURE.....AROUND 68.
MIN HUMIDITY........AROUND 42 PERCENT.
WIND (20 FT)........WINDS NORTH 4 TO 6 MPH.
CWR.................10 PERCENT.
LAL.................2.
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......4900 TO 5900 FT AGL.
TRANSPORT WINDS.....NORTHEAST 7 TO 9 MPH.
SMOKE DISPERSAL.....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.....AROUND 44.
MAX HUMIDITY........89 PERCENT.
WIND (20 FT)........NORTH WINDS 7 TO 12 MPH.
CWR.................10 PERCENT.
LAL.................3 UNTIL 2400...THEN 2.
HAINES INDEX........2 OR VERY LOW POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......500 TO 1000 FT AGL.
TRANSPORT WINDS.....EAST 5 TO 9 MPH.
SMOKE DISPERSAL.....POOR.

$$
FORECASTER...NWS
REQUESTED BY...STEVE ESSER
TYPE OF REQUEST...PRESCRIBED
.TAG 20100419.NEWUN.01/UNR