FNUS73 KUNR 191435
FWSUNR

SPOT FORECAST FOR COTTONWOOD RX...USDA FOREST SERVICE WALL RANGER DISTRICT
NATIONAL WEATHER SERVICE RAPID CITY SD
835 AM MDT MON APR 19 2010

FORECAST IS BASED ON IGNITION TIME OF 1000 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
USTY WINDS ARE POSSIBLE AROUND THE THUNDERSTORMS. HIGHS TODAY WILL
BE AROUND 66 WITH MINIMUM RELATIVE HUMIDITY AROUND 40 PERCENT.

.TODAY...
SKY/WEATHER.........PARTLY SUNNY. ISOLATED SHOWERS AND
                    THUNDERSTORMS IN THE AFTERNOON.
MAX TEMPERATURE.....AROUND 65-68.
MIN HUMIDITY........37-41 PERCENT.
WIND (20 FT)........VARIABLE WINDS 3 TO 5 MPH BECOMING EAST 5 TO 10 MPH.
CWR.................10 PERCENT.
HAINES INDEX........2 OR VERY LOW POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......4800 TO 5800 FT AGL.
TRANSPORT WINDS.....SOUTHEAST AROUND 5-9 MPH.
SMOKE DISPERSAL.....POOR THIS MORNING BECOMING FAIR THIS AFTERNOON.

.TONIGHT...
SKY/WEATHER.........MOSTLY CLOUDY. SLIGHT CHANCE OF SHOWERS AND
                    THUNDERSTORMS.
MIN TEMPERATURE.....AROUND 43.
MAX HUMIDITY........AROUND 90 PERCENT.
WIND (20 FT)........NORTHEAST WINDS 6 TO 10 MPH.
CWR.................10 PERCENT.
HAINES INDEX........2 OR VERY LOW POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......500 TO 1000 FT AGL.
TRANSPORT WINDS.....EAST AROUND 10 MPH.
SMOKE DISPERSAL.....POOR.

.TUESDAY...

SKY/WEATHER.........PARTLY SUNNY.
MAX TEMPERATURE.....AROUND 63.
MIN HUMIDITY........44-48 PERCENT.
WIND (20 FT)........EAST WINDS 6 TO 12 MPH.
CWR.................10 PERCENT.
HAINES INDEX........2 OR VERY LOW POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......3800 TO 4800 FT AGL.
TRANSPORT WINDS.....EAST AROUND 10 MPH.
SMOKE DISPERSAL.....FAIR.

$$
FORECASTER...NWS
REQUESTED BY...CORY RICHARDSON
TYPE OF REQUEST...PRESCRIBED
.TAG 20100419.COTTO.01/UNR