FNUS73 KUNR 041257
FWSUNR

SPOT FORECAST FOR HEADQUARTERS WEST RX...NPS
NATIONAL WEATHER SERVICE RAPID CITY SD
657 AM MDT FRI SEP 4 2009

FORECAST IS BASED ON IGNITION TIME OF 1000 MDT ON SEPTEMBER 04.
IF CONDITIONS BECOME UNREPRESENTATIVE CONTACT THE
NATIONAL WEATHER SERVICE OFFICE IN RAPID CITY.

.DISCUSSION...A TROF OF LOW PRESSURE OVER EASTERN MONTANA WILL BRING
SOUTHEASTERLY WINDS TODAY. WITH MOSTLY SUNNY SKIES...HIGHS WILL
CLIMB INTO THE LOWER 80S WITH MINIMUM RELATIVE HUMIDITY AROUND 30
PERCENT.

.TODAY...

SKY/WEATHER.........MOSTLY SUNNY.
TEMPERATURE.........68 AT IGNITION...MAX 80-82.
RH..................47-50 PERCENT AT IGNITION...MIN 28-32 PERCENT.
WIND (20 FT)........EAST-SOUTHEAST 5 TO 9 MPH
CWR.................0 PERCENT.
LAL.................1.
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......7300 TO 8300 FT AGL.
TRANSPORT WINDS.....SOUTH 5 TO 8 MPH SHIFTING TO THE SOUTHEAST
                    AROUND 10 MPH EARLY IN THE AFTERNOON.

.TONIGHT...

SKY/WEATHER.........PARTLY CLOUDY.
TEMPERATURE.........MIN 55-58.
RH..................MAX 67-72 PERCENT.
WIND (20 FT)........SOUTHEAST WINDS 5 TO 8 MPH EARLY IN THE EVENING
                    BECOMING VARIABLE 2 TO 4 MPH.
CWR.................0 PERCENT.
LAL.................1.
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......400 TO 900 FT AGL.
TRANSPORT WINDS.....WEST 6 TO 10 MPH.

.SATURDAY...

SKY/WEATHER.........SUNNY.
TEMPERATURE.........MAX 81-84.
RH..................MIN 25-28 PERCENT.
WIND (20 FT)........SOUTHEAST WINDS 8 TO 14 MPH.
CWR.................0 PERCENT.
LAL.................1.
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED
                    FIRE GROWTH.
MIXING HEIGHT.......7900 TO 8900 FT AGL.
TRANSPORT WINDS.....SOUTHEAST 9 TO 15 MPH.

$$
FORECASTER...NWS
REQUESTED BY...DAN SWANSON
TYPE OF REQUEST...PRESCRIBED
.TAG 20090904.HEADQ.01/UNR