FNUS73 KUNR 181750
FWSUNR

SPOT FORECAST FOR FOSSIL RX...USFS
NATIONAL WEATHER SERVICE RAPID CITY SD
1150 AM MDT MON OCT 18 2010

FORECAST IS BASED ON IGNITION TIME OF 1205 MDT ON OCTOBER 18.
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 NEAR 60 WITH MINIMUM RELATIVE HUMIDITIES AROUND 25
PERCENT. WINDS WILL BE LIGHT FROM THE SOUTHEAST. MIXING HEIGHTS
WILL INCREASE TO NEAR 4700 FT AGL BY THIS AFTERNOON. TONIGHT WILL
BE CLEAR AND COOL WITH EXCELLENT RELATIVE HUMIDITY RECOVERY.

TUESDAY WILL SEE SLIGHTLY WARMER TEMPERATURES WITH NORTHWEST
WINDS INCREASING TO 10 TO 15 MPH IN THE AFTERNOON. MINIMUM
RELATIVE HUMIDITIES WILL BE 20 TO 25 PERCENT WITH MIXING HEIGHTS
INCREASING TO AROUND 5300 FT AGL.


.TODAY...

SKY/WEATHER.........SUNNY.
TEMPERATURE.........57 AT IGNITION...MAX 61.
RH..................36 PERCENT AT IGNITION...MIN 27 PERCENT.
WIND (20 FT)........WINDS SOUTHEAST AT 6 MPH AT
                    IGNITION...OTHERWISE LIGHT WINDS BECOMING
                    SOUTHEAST 5 TO 6 MPH EARLY IN THE MORNING.
CWR.................0 PERCENT.
LAL.................1.
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......4200 TO 5200 FT AGL.
TRANSPORT WINDS.....SOUTHWEST 5 TO 12 MPH.
SMOKE DISPERSAL.....FAIR.

.TONIGHT...

SKY/WEATHER.........MOSTLY CLEAR.
TEMPERATURE.........MIN 31.
RH..................MAX 85 PERCENT.
WIND (20 FT)........SOUTHEAST WINDS AROUND 5 MPH EARLY 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.......200 TO 700 FT AGL.
TRANSPORT WINDS.....SOUTH AROUND 3 MPH SHIFTING TO THE EAST EARLY
                    IN THE EVENING...THEN SHIFTING TO THE NORTHWEST
                    2 TO 7 MPH LATE IN THE EVENING.
SMOKE DISPERSAL.....POOR.

.TUESDAY...

SKY/WEATHER.........SUNNY.
TEMPERATURE.........MAX 63.
RH..................MIN 23 PERCENT.
WIND (20 FT)........NORTHWEST WINDS 8 TO 13 MPH.
CWR.................0 PERCENT.
LAL.................1.
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......4800 TO 5800 FT AGL.
TRANSPORT WINDS.....NORTHWEST 8 TO 16 MPH INCREASING TO 16 TO 21
                    MPH LATE IN THE MORNING.
SMOKE DISPERSAL.....POOR INCREASING TO GOOD LATE IN THE
                    MORNING...THEN DECREASING TO POOR LATE IN THE
                    AFTERNOON.

$$
FORECASTER...LC
REQUESTED BY...FOSSIL RX
TYPE OF REQUEST...PRESCRIBED
.TAG 20101018.FOSSI.02/UNR