FNUS73 KUNR 211418
FWSUNR

SPOT FORECAST FOR GHOST HAWK RX 2...SD-RBA
NATIONAL WEATHER SERVICE RAPID CITY SD
818 AM MDT WED APR 21 2010

FORECAST IS BASED ON IGNITION TIME OF 1300 CDT ON APRIL 21.
IF CONDITIONS BECOME UNREPRESENTATIVE CONTACT THE
NATIONAL WEATHER SERVICE OFFICE IN RAPID CITY.

.DISCUSSION...
AREAS OF FOG WILL DISSIPATE THIS MORNING...WITH PARTLY SUNNY SKIES
THIS AFTERNOON. HIGHS WILL BE IN THE LOWER 60S WITH MINIMUM RELATIVE
HUMIDITY OF 40 TO 44 PERCENT. A LARGE STORM SYSTEM WILL BRING WIDESPREAD
WETTING RAINS THURSDAY NIGHT THROUGH FRIDAY NIGHT.

.TODAY...

SKY/WEATHER.........AREAS OF FOG IN THE MORNING...OTHERWISE PARTLY
                    SUNNY.
MAX TEMPERATURE.....64.
MIN HUMIDITY........40-44 PERCENT.
WIND (20 FT)........SOUTHEAST 6 TO 12 MPH.
CWR.................0 PERCENT.
LAL.................1.
HAINES INDEX........2 OR VERY LOW POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......3800 TO 4800 FT AGL.
TRANSPORT WINDS.....SOUTHEAST 8 TO 14 MPH.
SMOKE DISPERSAL.....FAIR.

.TONIGHT...

SKY/WEATHER.........PARTLY CLOUDY THEN BECOMING MOSTLY CLOUDY.
MIN TEMPERATURE.....42-44.
MAX HUMIDITY........AROUND 90 PERCENT.
WIND (20 FT)........SOUTHEAST WINDS 5 TO 10 MPH.
CWR.................0 PERCENT.
LAL.................1.
HAINES INDEX........2 OR VERY LOW POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......500 TO 1000 FT AGL.
TRANSPORT WINDS.....SOUTHEAST 13 TO 15 MPH.
SMOKE DISPERSAL.....POOR.

.THURSDAY...

SKY/WEATHER.........MOSTLY CLOUDY. CHANCE OF SHOWERS AND
                    THUNDERSTORMS IN THE AFTERNOON.
MAX TEMPERATURE.....64.
MIN HUMIDITY........50 PERCENT.
WIND (20 FT)........SOUTHEAST WINDS 6 TO 14 MPH INCREASING TO 16 TO
                    17 MPH LATE IN THE MORNING.
CWR.................20 PERCENT.
LAL.................1 UNTIL 1200...THEN 3.
HAINES INDEX........2 OR VERY LOW POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......4400 TO 5400 FT AGL.
TRANSPORT WINDS.....EAST 15 TO 20 MPH.
SMOKE DISPERSAL.....FAIR INCREASING TO GOOD IN THE AFTERNOON.

$$
FORECASTER...NWS
REQUESTED BY...STEVEN IPSWITCH
TYPE OF REQUEST...PRESCRIBED
.TAG 20100421.GHOST.03/UNR