FNUS73 KUNR 122142
FWSUNR

SPOT FORECAST FOR FOSSIL...GREAT PLAINS DISPATCH
NATIONAL WEATHER SERVICE RAPID CITY SD
342 PM MDT WED AUG 12 2009

FORECAST IS BASED ON REQUEST TIME OF 1529 MDT ON AUGUST 12.
IF CONDITIONS BECOME UNREPRESENTATIVE CONTACT THE
NATIONAL WEATHER SERVICE OFFICE IN RAPID CITY.

...HOT WEATHER CONTINUES...

.DISCUSSION...
A STRONG UPPER LEVEL RIDGE OF HIGH PRESSURE WILL CONTINUE TO
BRING HOT AND DRY CONDITIONS TO THE BURN AREA THROUGH THURSDAY
WITH VERY LOW AFTERNOON RELATIVE HUMIDITIES AND ONLY FAIR RECOVERY
AT NIGHT. HAINES INDICES WILL CONTINUE TO RUN AROUND 6.

ISOLATED THUNDERSTORMS THIS EVENING ARE EXPECTED TO REMAIN NORTH
AND WEST OF THE BURN AREA.

.TONIGHT...

SKY/WEATHER.........MOSTLY CLEAR.
MIN TEMPERATURE.....AROUND 59.
MAX HUMIDITY........50 PERCENT.
WIND (20 FT)........EAST WINDS 4 TO 8 MPH BECOME BECOMING WEST LATER
                    THIS EVENING.
CWR.................0 PERCENT.
LAL.................1.
HAINES INDEX........6 OR HIGH POTENTIAL FOR LARGE PLUME DOMINATED
                    FIRE GROWTH.
MIXING HEIGHT.......300 TO 800 FT AGL.
TRANSPORT WINDS.....NORTHWEST AROUND 4 MPH.
SMOKE DISPERSAL.....POOR.

.THURSDAY...

SKY/WEATHER.........MOSTLY SUNNY.
MAX TEMPERATURE.....AROUND 93.
MIN HUMIDITY........12 PERCENT.
WIND (20 FT)........SOUTH WINDS 5 TO 10 MPH.
CWR.................0 PERCENT.
LAL.................1.
HAINES INDEX........6 OR HIGH POTENTIAL FOR LARGE PLUME DOMINATED
                    FIRE GROWTH.
MIXING HEIGHT.......10000 FT AGL.
TRANSPORT WINDS.....SOUTHWEST AROUND 10 MPH.
SMOKE DISPERSAL.....VERY GOOD.

$$
FORECASTER...JJ
REQUESTED BY...COURTNEY
TYPE OF REQUEST...WILDFIRE
.TAG 20090812.FOSSI.02/UNR