FNUS73 KUNR 192052
FWSUNR

SPOT FORECAST FOR AMERICAN ELK RX...NATIONAL PARK SERVICE
NATIONAL WEATHER SERVICE RAPID CITY SD
252 PM MDT TUE OCT 19 2010

FORECAST IS BASED ON IGNITION TIME OF 1700 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. TONIGHT
WILL BE CLEAR AND COOL WITH FAIR RELATIVE HUMIDITY RECOVERY.
LIGHT WEST TO NORTHWEST DOWNSLOPE WINDS CAN BE EXPECTED.

WEDNESDAY WILL SEE SLIGHTLY WARMER TEMPERATURES. WINDS WILL
BECOME NORTHEAST AT 4 TO 8 MPH. MINIMUM RELATIVE HUMIDITIES
WILL BE 17 TO 20 PERCENT. MIXING HEIGHTS WILL BE AROUND 4900
FT AGL WITH FAIR SMOKE DISPERSAL EXPECTED IN THE AFTERNOON.


.TONIGHT...

SKY/WEATHER.........MOSTLY CLEAR.
TEMPERATURE.........MIN 35.
RH..................MAX 54 PERCENT.
WIND (20 FT)........NORTHWEST WINDS 5 TO 6 MPH.
CWR.................0 PERCENT.
LAL.................1.
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......100 TO 600 FT AGL.
TRANSPORT WINDS.....WEST 5 TO 10 MPH.
SMOKE DISPERSAL.....POOR.

.WEDNESDAY...

SKY/WEATHER.........SUNNY.
TEMPERATURE.........MAX 67.
RH..................MIN 20 PERCENT.
WIND (20 FT)........NORTHEAST WINDS 6 TO 7 MPH.
CWR.................0 PERCENT.
LAL.................1.
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......4400 TO 5400 FT AGL.
TRANSPORT WINDS.....NORTHWEST 7 TO 10 MPH SHIFTING TO THE NORTHEAST
                    AROUND 6 MPH LATE IN THE AFTERNOON.
SMOKE DISPERSAL.....FAIR.

$$
FORECASTER...LC
REQUESTED BY...DAN SWANSON
TYPE OF REQUEST...PRESCRIBED
.TAG 20101019.AMERI.01/UNR