FNUS73 KUNR 191401
FWSUNR

SPOT FORECAST FOR FOSSIL RX...US FOREST SERVICE
NATIONAL WEATHER SERVICE RAPID CITY SD
801 AM MDT TUE OCT 19 2010

FORECAST IS BASED ON IGNITION TIME OF 1000 MDT ON OCTOBER 19.
IF CONDITIONS BECOME UNREPRESENTATIVE CONTACT THE
NATIONAL WEATHER SERVICE OFFICE IN RAPID CITY.

.DISCUSSION...HIGH PRESSURE WILL BRING SUNNY SKIES AND MILD
TEMPERATURES TO THE REGION FOR THE NEXT SEVERAL DAYS. HIGHS
TODAY WILL BE IN THE LOWER 60S WITH MINIMUM RELATIVE HUMIDITIES
20 TO 25 PERCENT. NORTHWEST WINDS WILL INCREASE TO 10 TO 15 MPH.
MIXING HEIGHTS WILL BE AROUND 4700 FT AGL THIS AFTERNOON WITH
GOOD SMOKE DISPERAL. TONIGHT WILL BE CLEAR AND COOL WITH GOOD
RELATIVE HUMIDITY RECOVERY.

WEDNESDAY WILL SEE SLIGHTLY WARMER TEMPERATURES WITH NORTHWEST
WINDS OF 8 TO 12 MPH IN THE AFTERNOON. MINIMUM RELATIVE HUMIDITIES
WILL BE 20 TO 25 PERCENT. MIXING HEIGHTS WILL BE AROUND 4700 FT AGL
WITH GOOD SMOKE DISPERSAL IN THE AFTERNOON.


.TODAY...

SKY/WEATHER.........SUNNY.
TEMPERATURE.........49 AT IGNITION...MAX 63.
RH..................42 PERCENT AT IGNITION...MIN 24 PERCENT.
WIND (20 FT)........WINDS NORTHWEST AT 14 MPH AT
                    IGNITION...OTHERWISE NORTHWEST WINDS 10 TO 15
                    MPH.
CWR.................0 PERCENT.
LAL.................1.
HAINES INDEX........2 OR VERY LOW POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......4200 TO 5200 FT AGL.
TRANSPORT WINDS.....NORTHWEST 13 TO 20 MPH DECREASING TO AROUND 15
                    MPH LATE IN THE AFTERNOON.
SMOKE DISPERSAL.....FAIR INCREASING TO GOOD IN THE AFTERNOON...THEN
                    DECREASING TO POOR LATE IN THE AFTERNOON.

.TONIGHT...

SKY/WEATHER.........CLEAR.
TEMPERATURE.........MIN 32.
RH..................MAX 69 PERCENT.
WIND (20 FT)........NORTHWEST WINDS 5 TO 9 MPH IN THE EVENING
                    BECOMING LIGHT...THEN BECOMING WEST 5 TO 7 MPH
                    AFTER MIDNIGHT.
CWR.................0 PERCENT.
LAL.................1.
HAINES INDEX........2 OR VERY LOW POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......100 TO 600 FT AGL.
TRANSPORT WINDS.....NORTHWEST 6 TO 13 MPH.
SMOKE DISPERSAL.....POOR.

.WEDNESDAY...

SKY/WEATHER.........SUNNY.
TEMPERATURE.........MAX 68.
RH..................MIN 22 PERCENT.
WIND (20 FT)........NORTHEAST WINDS 7 TO 9 MPH.
CWR.................0 PERCENT.
LAL.................1.
HAINES INDEX........2 OR VERY LOW POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......4300 TO 5300 FT AGL.
TRANSPORT WINDS.....NORTH 9 TO 16 MPH.
SMOKE DISPERSAL.....FAIR INCREASING TO GOOD EARLY IN THE
                    AFTERNOON...THEN DECREASING TO POOR LATE IN THE
                    AFTERNOON.

$$
FORECASTER...LC
REQUESTED BY...JAY MILLER
TYPE OF REQUEST...PRESCRIBED
.TAG 20101019.FOSSI.01/UNR