FNUS75 KRIW 310923
FWSRIW

SPOT FORECAST FOR FONTENELLE...IA TDC
NATIONAL WEATHER SERVICE RIVERTON WY
323 AM MDT TUE JUL 31 2012

FORECAST IS BASED ON REQUEST TIME OF 2005 MDT ON JULY 30.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...

MONSOONAL MOISTURE COMBINED WITH DAYTIME HEATING WILL RESULT IN
WIDELY SCATTERED AFTERNOON AND EVENING SHOWERS AND THUNDERSTORMS
OVER THE NEXT COUPLE OF DAYS. THE MAIN HAZARDS WILL BE VERY STRONG
AND ERRATIC WINDS...AS WELL AS DANGEROUS CLOUD TO GROUND
LIGHTNING. VERY DRY AND BREEZY CONDITIONS ARE EXPECTED OVER THE
WILDFIRE AREA THURSDAY AND FRIDAY.

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

FORECASTER...MURRELL

.TODAY...
SKY/WEATHER.........PARTLY TO MOSTLY CLOUDY (50-75 PERCENT).
                    WIDELY SCATTERED SHOWERS AND THUNDERSTORMS
                    IN THE AFTERNOON.
MAX TEMPERATURE.....80.
MIN HUMIDITY........15-20 PERCENT.
20 FOOT WINDS.......UPSLOPE/UPVALLEY 4-8 MPH...BECOMING WEST TO
                    SOUTHWEST 5-10 MPH AROUND 2 PM. NON-THUNDERSTORM
                    GUSTS TO 20 MPH IN THE AFTERNOON. GUSTY AND
                    ERRATIC WINDS EXPECTED NEAR THUNDERSTORMS.
RIDGE TOP WINDS.....WEST TO NORTHWEST AROUND 5 MPH...INCREASING
                    TO AROUND 10 MPH IN THE AFTERNOON. GUSTS TO 25
                    MPH.
LAL.................1 UNTIL NOON...THEN 3.
CHC OF WETTING RAIN.10 PERCENT.
HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......1500 FT AGL INCREASING TO 9500 FT AGL
                    IN THE AFTERNOON.
TRANSPORT WINDS.....NORTHWEST AROUND 10 MPH SHIFTING TO THE
                    SOUTHWEST 10 MPH IN THE AFTERNOON.
SMOKE DISPERSAL.....POOR INCREASING TO GOOD.

.TONIGHT...
SKY/WEATHER.........PARTLY CLOUDY (30-40 PERCENT). ISOLATED SHOWERS
                    AND THUNDERSTORMS THROUGH MIDNIGHT.
MIN TEMPERATURE.....43-49.
MAX HUMIDITY........80-90 PERCENT NEAR SNIDER BASIN. OTHER AREAS OF
                    THE FIRE WILL BE AROUND 40 PERCENT.
20 FOOT WINDS.......DOWNSLOPE/DOWNVALLEY 4-8 MPH. GUSTY AND ERRATIC
                    WINDS EXPECTED NEAR THUNDERSTORMS.
RIDGE TOP WINDS.....WEST TO NORTHWEST AROUND 10 MPH.
LAL.................2 UNTIL MIDNIGHT...THEN 1.
CHC OF WETTING RAIN.10 PERCENT.
HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......7300-8300 FT AGL DECREASING TO 1900 FT AGL
                    BY 9 PM.
TRANSPORT WINDS.....WEST TO NORTHWEST AROUND 10 MPH.
SMOKE DISPERSAL.....GOOD DECREASING TO POOR.

.WEDNESDAY...
SKY/WEATHER.........MOSTLY SUNNY (20-30 PERCENT) THEN BECOMING
                    PARTLY CLOUDY (45-55 PERCENT). WIDELY SCATTERED
                    SHOWERS AND THUNDERSTORMS IN THE AFTERNOON.
MAX TEMPERATURE.....80.
MIN HUMIDITY........AROUND 20 PERCENT.
20 FOOT WINDS.......UPSLOPE/UPVALLEY 4-8 MPH BECOMING WEST 10 TO 15
                    MPH IN THE AFTERNOON. GUSTS 20 TO 25 MPH IN THE
                    AFTERNOON. GUSTY AND ERRATIC WINDS EXPECTED NEAR
                    THUNDERSTORMS IN THE AFTERNOON.
RIDGE TOP WINDS.....WEST 10 TO 20 MPH.
LAL.................1 UNTIL NOON...THEN 3.
CHC OF WETTING RAIN.10 PERCENT.
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED
                    FIRE GROWTH.
MIXING HEIGHT.......2000 FT AGL INCREASING TO 8300-9300 FT AGL
                    IN THE AFTERNOON.
TRANSPORT WINDS.....WEST 15 TO 20 MPH.
SMOKE DISPERSAL.....VERY GOOD IN THE AFTERNOON.

.FORECAST DAYS 3 THROUGH 5...

.WEDNESDAY NIGHT...MOSTLY CLEAR. ISOLATED SHOWERS AND
THUNDERSTORMS IN THE EVENING. LOWS IN THE MID 40S. WINDS
GENERALLY LESS THAN 10 MPH.

.THURSDAY...MOSTLY CLEAR. LOWS IN THE MID 40S. HIGHS IN THE MID
70S. WEST WINDS 10 TO 15 MPH. FREQUENT GUSTS OVER 25 MPH IN THE
AFTERNOON.

.FRIDAY...MOSTLY CLEAR. LOWS IN THE LOWER 40S. HIGHS IN THE LOWER
70S. WEST WINDS 10 TO 15 MPH. FREQUENT GUSTS OVER 25 MPH IN THE
AFTERNOON.

.SATURDAY...MOSTLY CLEAR. LOWS IN THE LOWER 40S. HIGHS IN THE
LOWER 70S. WINDS GENERALLY LESS THAN 10 MPH.

$$

FORECASTER...MURRELL
REQUESTED BY...BENTLEY
REASON FOR REQUEST...WILDFIRE
.TAG 20120730.FONTE.02/RIW