FNUS75 KRIW 221051
FWSRIW

SPOT FORECAST FOR HOLE IN THE WALL...USFS SHF
NATIONAL WEATHER SERVICE RIVERTON WY
451 AM MDT MON AUG 22 2011

FORECAST IS BASED ON REQUEST TIME OF 2317 MDT ON AUGUST 21.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...UPPER HIGH PRESSURE OVER THE SOUTHERN PLAINS WILL SHIFT WESTWARD
OVER THE NEXT COUPLE OF DAYS. TEMPERATURES WILL BE WARMER TODAY AND TUESDAY
ALONG WITH LOWER RELATIVE HUMIDITY TODAY AND TUESDAY. THE HIGHER ELEVATIONS
WILL TREND TOWARD LOWER RELATIVE HUMIDITY TODAY THROUGH TUESDAY. THE
COMBINATION OF VERY WARM TEMPERATURES...VERY LOW RELATIVE HUMIDITY AND
OCCASIONAL GUSTY WEST WIND WILL INCREASE THE FIRE DANGER FOR THE NEXT
COUPLE OF DAYS. ISOLATED LATE AFTERNOON AND EVENING THUNDERSTORMS ARE
EXPECTED TODAY...SIMILAR TO SUNDAY...HOWEVER THIS ACTIVITY WILL BE MUCH
MORE ISOLATED TODAY.  NO THUNDERSTORMS ARE EXPECTED ON TUESDAY. ONE OTHER
SHORT TERM CONCERN WILL BE THE POTENTIAL FOR STRONG WEST WINDS FOR A FEW
HOURS TONIGHT. THE HIGHEST LIKELIHOOD OF THIS WILL BE FROM LATE THIS EVENING
INTO THE EARLY MORNING HOURS.


...THUNDERSTORMS IMPLY STRONG GUSTY AND ERRATIC WINDS...
...HAINES INDEX IS HIGH LEVEL HAINES BOTH DAY AND NIGHT...

FORECASTER...SKRBAC

.TODAY...
SKY/WEATHER.........MOSTLY SUNNY (25-35 PERCENT) THEN BECOMING
                    PARTLY CLOUDY (45-55 PERCENT). AN ISOLATED SHOWER
                    OR THUNDERSTORM IS POSSIBLE BETWEEN 1300 AND 1700.
MAX TEMPERATURE.....87 AT 5600 FEET AND 74 AT 8000 FEET.
MIN HUMIDITY........13 PERCENT AT 5600 FEET AND 17 PERCENT AT 8000 FEET.
20 FOOT WINDS.......SOUTHWEST 5-9 MPH. WEST WINDS 9 TO 12 MPH BY 1400.
                    THERE WILL BE SOME EDDYING OF THE WINDS IN THE AFTERNOON.
                    IN ADDITION...GUSTY AND ERRATIC WINDS EXPECTED NEAR
                    THUNDERSTORMS IN THE AFTERNOON.
RIDGE TOP WINDS.....WEST AROUND 15 MPH INCREASING TO 20 MPH LATE THIS
                    AFTERNOON.
LAL.................1...BECOMING 2 AFTER 1300L.
CHC OF WETTING RAIN.LESS THAN 5 PERCENT.
HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.

.TONIGHT...
SKY/WEATHER.........PARTLY CLOUDY (35-45 PERCENT). SLIGHT CHANCE OF
                    SHOWERS AND THUNDERSTORMS IN THE EVENING.
MIN TEMPERATURE.....52-55.
MAX HUMIDITY........25-29 PERCENT.
20 FOOT WINDS.......WEST 6-12 MPH. GUSTY AND ERRATIC WINDS EXPECTED NEAR
                    THUNDERSTORMS IN THE EVENING. BRIEF STRONG WEST WINDS
                    OF 15-30 MPH ARE QUITE POSSIBLE BETWEEN 10 PM AND 4 AM.
RIDGE TOP WINDS.....WEST AROUND 20 MPH...DECREASING TO 5-10 MPH AFTER 4 AM.
LAL.................2 UNTIL 2400...THEN 1.
CHC OF WETTING RAIN.LESS THAN 5 PERCENT.
HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.

.TUESDAY...
SKY/WEATHER.........MOSTLY SUNNY (10-20 PERCENT).
MAX TEMPERATURE.....85 AT 5600 FEET AND 71 AT 8000 FEET.
MIN HUMIDITY........15 PERCENT AT 5600 FEET AND 13 PERCENT AT 8000 FEET.
20 FOOT WINDS.......WEST 10 TO 15 MPH. AFTER 0900 NORTHWEST 5 TO 10 MPH.
                    WINDS WILL SHIFT TO THE NORTHEAST AT 10 TO 15 MPH
                    AROUND 1800.
RIDGE TOP WINDS.....WEST 10 TO 15 MPH.
LAL.................1.
CHC OF WETTING RAIN.ZERO PERCENT.
HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.

.FORECAST DAYS 3 THROUGH 5...
.TUESDAY NIGHT...MOSTLY CLEAR. LOWS IN THE LOWER 50S. WINDS
GENERALLY LESS THAN 10 MPH.
.WEDNESDAY...MOSTLY CLEAR. LOWS IN THE MID 50S. HIGHS IN THE
LOWER 70S. WINDS GENERALLY LESS THAN 10 MPH.
.THURSDAY...PARTLY CLOUDY WITH SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS IN THE LOWER 50S. HIGHS IN THE UPPER 70S.
WINDS GENERALLY LESS THAN 10 MPH.
.FRIDAY...PARTLY CLOUDY WITH CHANCE OF SHOWERS AND THUNDERSTORMS.
LOWS IN THE LOWER 50S. HIGHS IN THE LOWER 70S. WINDS GENERALLY
LESS THAN 10 MPH.

$$

FORECASTER...SKRBAC/LIPSON
REQUESTED BY...MIKE WOODS
REASON FOR REQUEST...WILDFIRE
.TAG 20110821.HOLEI.01/RIW