FNUS73 KUNR 161816
FWSUNR

SPOT FORECAST FOR FOSSIL RX...USFS
NATIONAL WEATHER SERVICE RAPID CITY SD
1216 PM MDT SAT OCT 16 2010

FORECAST IS BASED ON IGNITION TIME OF 1100 MDT ON OCTOBER 16.
IF CONDITIONS BECOME UNREPRESENTATIVE CONTACT THE
NATIONAL WEATHER SERVICE OFFICE IN RAPID CITY.

.DISCUSSION...THE WEATHER TODAY WILL BE MOSTLY SUNNY AND COOLER WITH A
HIGH TEMPERATURE AROUND 58 AND MINIMUM RELATIVE HUMIDITY AROUND 26 PERCENT.
THE MIXING HEIGHT WILL REACH 2600 TO 3600 FT AGL THIS AFTERNOON. HOWEVER...
SINCE THE WINDS IN THE MIXED LAYER WILL REMAIN RELATIVELY LIGHT...THE
SMOKE DISPERSAL CALCULATION WILL REMAIN IN THE POOR CATEGORY THROUGH THE
AFTERNOON.

.REST OF TODAY...

SKY/WEATHER.........MOSTLY SUNNY.
TEMPERATURE.........MAX 58.
RH..................MIN 26 PERCENT.
WIND (20 FT)........SOUTHEAST WINDS 4 TO 8 MPH.
CWR.................0 PERCENT.
LAL.................1.
HAINES INDEX........2 OR VERY LOW POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......2600 TO 3600 FT AGL.
TRANSPORT WINDS.....SOUTHEAST 5 TO 9 MPH.
SMOKE DISPERSAL.....POOR.

.TONIGHT...

SKY/WEATHER.........PARTLY CLOUDY THEN BECOMING MOSTLY CLOUDY.
TEMPERATURE.........MIN 34.
RH..................MAX 72 PERCENT.
WIND (20 FT)........SOUTHEAST AROUND 4 MPH BECOMING SOUTH.
CWR.................0 PERCENT.
LAL.................1.
HAINES INDEX........2 OR VERY LOW POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......FALLING TO 100 TO 600 FT AGL SHORTLY AFTER SUNSET.
TRANSPORT WINDS.....NORTHEAST 4 TO 7 MPH.
SMOKE DISPERSAL.....POOR.

.SUNDAY...

SKY/WEATHER.........PARTLY SUNNY.
TEMPERATURE.........MAX 64.
RH..................MIN 32 PERCENT.
WIND (20 FT)........NORTH 5 TO 9 MPH.
CWR.................0 PERCENT.
LAL.................1.
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED
                    FIRE GROWTH.
MIXING HEIGHT.......2700 TO 3700 FT AGL.
TRANSPORT WINDS.....NORTHWEST 9 TO 14 MPH.
SMOKE DISPERSAL.....POOR.

$$
FORECASTER...GR
REQUESTED BY...MILLER
TYPE OF REQUEST...PRESCRIBED
.TAG 20101016.FOSSI.02/UNR