FNUS75 KRIW 070950
FWSRIW

SPOT FORECAST FOR NOWLIN...IA TDC
NATIONAL WEATHER SERVICE RIVERTON WY
350 AM MDT WED SEP 7 2011

FORECAST IS BASED ON REQUEST TIME OF 1755 MDT ON SEPTEMBER 06.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...

WIDELY SCATTERED SHOWERS AND THUNDERSTORMS ARE EXPECTED AGAIN THIS
AFTERNOON AND EVENING. WINDS ARE EXPECTED TO GENERALLY BE EAST TO
SOUTHEAST TODAY...BUT COULD BE UPSLOPE/UPVALLEY AT TIMES. WINDS
WILL ALSO BECOME MORE VARIABLE AND GUSTY AS SHOWERS AND THUNDERSTORMS
DEVELOP. DRIER AIR WILL BEGIN TO WORK INTO THE AREA THURSDAY...BUT
THERE WILL STILL BE ENOUGH MOISTURE FOR AN ISOLATED SHOWER OR
THUNDERSTORM...BUT THE COVERAGE WILL BE LESS THAN WHAT OCCURS
TODAY. DRY AND WARM CONDITIONS...WITH MAINLY TERRAIN DRIVEN FLOW
IS EXPECTED FRIDAY AND SATURDAY.

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

FORECASTER...MURRELL

.TODAY...
SKY/WEATHER.........MOSTLY CLOUDY (60-75 PERCENT). WIDELY SCATTERED
                    SHOWERS AND THUNDERSTORMS IN THE AFTERNOON.
MAX TEMPERATURE.....54-58.
MIN HUMIDITY........35-40 PERCENT.
20 FOOT WINDS.......EAST TO SOUTHEAST 5-10 MPH. GUSTS UP TO 15 MPH.
                    GUSTY AND ERRATIC WINDS EXPECTED NEAR
                    THUNDERSTORMS IN THE AFTERNOON.
RIDGE TOP WINDS.....SOUTHEAST AROUND 10 MPH.
LAL.................1 UNTIL 1200...THEN 2.
CHC OF WETTING RAIN.5 PERCENT.
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......2400-3400 FT AGL INCREASING TO 5400-6200 FT AGL
                    IN THE AFTERNOON.
TRANSPORT WINDS.....SOUTHEAST 10 TO 15 MPH.
SMOKE DISPERSAL.....POOR TO FAIR (33100-56200 KNOT-FT).

.TONIGHT...
SKY/WEATHER.........PARTLY CLOUDY (60 PERCENT)...BECOMING MOSTLY
                    CLEAR (20 PERCENT) BY MIDNIGHT. ISOLATED
                    SHOWERS AND THUNDERSTORMS THROUGH 2200.
MIN TEMPERATURE.....AROUND 40.
MAX HUMIDITY........68-71 PERCENT.
20 FOOT WINDS.......DOWNSLOPE/DOWNVALLEY 4-8 MPH. GUSTY AND
                    ERRATIC WINDS EXPECTED NEAR THUNDERSTORMS
                    IN THE EVENING.
RIDGE TOP WINDS.....SOUTHEAST AROUND 10 MPH...BECOMING SOUTH
                    AFTER MIDNIGHT.
LAL.................2 UNTIL 2400...THEN 1.
CHC OF WETTING RAIN.NEAR ZERO.
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED
                    FIRE GROWTH.
MIXING HEIGHT.......3300-4300 FT AGL DECREASING TO 400-1400 FT AGL
                    AFTER MIDNIGHT.
TRANSPORT WINDS.....SOUTHEAST AROUND 10 MPH...BECOMING SOUTH
                    AFTER MIDNIGHT.
SMOKE DISPERSAL.....POOR (10400-34100 KNOT-FT).

.THURSDAY...
SKY/WEATHER.........MOSTLY SUNNY (20-30 PERCENT) THEN BECOMING
                    PARTLY CLOUDY (50-60 PERCENT). SLIGHT CHANCE OF
                    SHOWERS AND THUNDERSTORMS IN THE AFTERNOON.
MAX TEMPERATURE.....59-62.
MIN HUMIDITY........24-27 PERCENT.
20 FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH. GUSTY AND ERRATIC
                    WINDS EXPECTED NEAR THUNDERSTORMS IN THE
                    AFTERNOON.
RIDGE TOP WINDS.....SOUTHEAST 5-10 MPH.
LAL.................1 UNTIL 1200...THEN 2.
CHC OF WETTING RAIN.NEAR ZERO.
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......3000-4000 FT AGL INCREASING TO 7400-8400 FT AGL
                    IN THE AFTERNOON.
TRANSPORT WINDS.....SOUTHEAST 5-10 MPH.
SMOKE DISPERSAL.....POOR TO FAIR (20900-56200 KNOT-FT).

.FORECAST DAYS 3 THROUGH 5...

.THURSDAY NIGHT...PARTLY CLOUDY WITH SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS IN THE UPPER 30S. WINDS GENERALLY LESS THAN
10 MPH.

.FRIDAY...MOSTLY CLEAR. LOWS IN THE UPPER 30S. HIGHS IN THE LOWER
60S. WINDS GENERALLY LESS THAN 10 MPH.

.SATURDAY...MOSTLY CLEAR. LOWS IN THE UPPER 30S. HIGHS IN THE
LOWER 60S. WINDS GENERALLY LESS THAN 10 MPH.

.SUNDAY...PARTLY CLOUDY. ISOLATED SHOWERS AND THUNDERSTORMS. LOWS
IN THE UPPER 30S. HIGHS IN THE LOWER 60S. WINDS GENERALLY LESS
THAN 10 MPH.

$$

FORECASTER...MURRELL
REQUESTED BY...ICT4
REASON FOR REQUEST...WILDFIRE
.TAG 20110906.NOWLI.01/RIW