FNUS73 KUNR 190404
FWSUNR

SPOT FORECAST FOR WESTBURY TRAILS...SDS
NATIONAL WEATHER SERVICE RAPID CITY SD
1004 PM MDT TUE SEP 18 2012

FORECAST IS BASED ON REQUEST TIME OF 2146 MDT ON SEPTEMBER 18.
IF CONDITIONS BECOME UNREPRESENTATIVE CONTACT THE
NATIONAL WEATHER SERVICE OFFICE IN RAPID CITY.

...STRONG COLD FRONT COMING LATE TONIGHT...

.DISCUSSION...
A STRONG COLD FRONT WILL MOVE THROUGH THE FIRE AREA BETWEEN 500 AM
AND 700 AM. AHEAD OF THE FRONT...WEST TO NORTHWEST WINDS LESS THAN
10 MPH ARE EXPECTED. BEHIND THE FRONT...A PERIOD OF STRONG GUSTY
NORTHWEST WINDS ARE EXPECTED FROM 15 TO 30 MPH WITH GUSTS TO 40
MPH. WINDS WILL REMAIN GUSTY THROUGH THE DAY...BUT SLOWLY
DIMINISH. POOR RELATIVE HUMIDITY RECOVERY IS EXPECTED TONIGHT WITH
VERY DRY MINIMUM RELATIVE HUMIDITIES EXPECTED WEDNESDAY.

.REST OF TONIGHT...

SKY/WEATHER.........MOSTLY CLEAR...SOME HIGH CLOUDS.
MIN TEMPERATURE.....AROUND 55.
MAX HUMIDITY........40 PERCENT.
WIND (20 FT)........WEST TO NORTHWEST WINDS 5 TO 10 MPH SHIFTING TO
                    THE NORTHWEST 15 TO 30 MPH AFTER 500 AM.
CWR.................0 PERCENT.
LAL.................1.
HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......600 FT AGL.
TRANSPORT WINDS.....WEST AROUND 10 MPH.
SMOKE DISPERSAL.....POOR.

.WEDNESDAY...

SKY/WEATHER.........MOSTLY SUNNY.
MAX TEMPERATURE.....AROUND 71.
MIN HUMIDITY........23 PERCENT.
WIND (20 FT)........WINDY. NORTHWEST WINDS 15 TO 30 MPH WITH GUSTS
                    TO AROUND 40 MPH THROUGH LATE MORNING...THEN NORTHWEST
                    10 TO 20 MPH WITH GUSTS TO 25 MPH IN THE AFTERNOON.
CWR.................0 PERCENT.
LAL.................1.
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED
                    FIRE GROWTH.
MIXING HEIGHT.......7000 FT AGL.
TRANSPORT WINDS.....NORTHWEST AROUND 30 MPH.
SMOKE DISPERSAL.....EXCELLENT.

.WEDNESDAY NIGHT...

SKY/WEATHER.........MOSTLY CLEAR.
MIN TEMPERATURE.....AROUND 40.
MAX HUMIDITY........60 PERCENT.
WIND (20 FT)........NORTHWEST LESS THAN 10 MPH BECOME LIGHT TERRAIN
                    DOMINATED.
CWR.................0 PERCENT.
LAL.................1.
HAINES INDEX........2 OR VERY LOW POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......600 FT AGL.
TRANSPORT WINDS.....WEST AROUND 5 MPH.
SMOKE DISPERSAL.....POOR.

$$
FORECASTER...EH
REQUESTED BY...ST 660
TYPE OF REQUEST...WILDFIRE
.TAG 20120918.WESTB.01/UNR