FNUS75 KRIW 122100
FWSRIW

SPOT FORECAST FOR CANYON...IA CDC
NATIONAL WEATHER SERVICE RIVERTON WY
300 PM MDT WED AUG 12 2009

FORECAST IS BASED ON REQUEST TIME OF 1446 MDT ON AUGUST 12.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...
ISOLATED SHOWERS AND THUNDERSTORMS MAY IMPACT THE FIRE THIS
AFTERNOON AND INTO THIS EVENING...AS ISOLATED SHOWER ACTIVITY
CONTINUES TO WORK ITS WAY THROUGH NORTH CENTRAL WYOMING.
THUNDERSTORM ACTIVITY MAY BRING GUSTY AND ERRATIC WIND TO 30
MPH....LIGHTNING AND SMALL HAIL. STORMS ARE EXPECTED TO END BY
MIDNIGHT THIS EVENING...WITH DRY CONDITIONS PREVAILING THROUGH
THURSDAY MORNING. ANOTHER ROUND OF ISOLATED SHOWERS AND
THUNDERSTORMS WILL DEVELOP THURSDAY AFTERNOON WITH SIMILAR THREATS
OF GUSTY WIND AND LIGHTNING. SLIGHTLY WARMER TEMPERATURES
ANTICIPATED THURSDAY...WITH HUMIDITY IN THE LOW TEENS.


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

FORECASTER...BRANHAM

.TONIGHT...
SKY/WEATHER.........PARTLY CLOUDY (35-45 PERCENT) THEN BECOMING
                    CLEAR (5-15 PERCENT). ISOLATED SHOWERS AND
                    THUNDERSTORMS THROUGH 2400.
MIN TEMPERATURE.....60-65.
MAX HUMIDITY........27-32 PERCENT.
20 FOOT WINDS.......SOUTH WINDS AROUND 8 MPH WITH GUSTS TO AROUND
                    15 MPH EARLY IN THE EVENING BECOMING
                    DOWNSLOPE/DOWNVALLEY 4-7 MPH. GUSTY AND ERRATIC
                    WINDS EXPECTED NEAR THUNDERSTORMS IN THE
                    EVENING.
RIDGE TOP WINDS.....SOUTHWEST 8 TO 12 MPH WITH SOME GUSTS UP TO 17 MPH.
                    WIND WILL SHIFT TO THE NORTHEAST BY 0200.
LAL.................2 UNTIL 2400...THEN 1.
CHC OF WETTING RAIN.LESS THAN 5 PERCENT THROUGH 2400.
HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.

.THURSDAY...
SKY/WEATHER.........SUNNY (0-10 PERCENT) THEN BECOMING PARTLY
                    CLOUDY (35-45 PERCENT) BY 1200. ISOLATED SHOWERS
                    AND THUNDERSTORMS BY 1400.
MAX TEMPERATURE.....79-84.
MIN HUMIDITY........12-15 PERCENT.
20 FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH BECOMING SOUTH AT 10 TO
                    15 MPH WITH HIGHER GUSTS AFTER 1500.
                    GUSTY AND ERRATIC WINDS EXPECTED NEAR
                    THUNDERSTORMS IN THE AFTERNOON.
RIDGE TOP WINDS.....SOUTH 10 TO 15 MPH INCREASING TO 20 TO 25 MPH
                    AFTER 1400.
LAL.................1 UNTIL 1400...THEN 2.
CHC OF WETTING RAIN.LESS THAN 5 PERCENT AFTER 1400.
HAINES INDEX........6 OR HIGH POTENTIAL FOR LARGE PLUME DOMINATED
                    FIRE GROWTH.

.FORECAST DAYS 3 THROUGH 5...
.THURSDAY NIGHT...PARTLY CLOUDY. ISOLATED THUNDERSTORMS IN THE
EVENING. LOWS IN THE LOWER 60S. WINDS GENERALLY LESS THAN 10 MPH.
.FRIDAY...PARTLY CLOUDY WITH SCATTERED SHOWERS AND ISOLATED
THUNDERSTORMS. LOWS IN THE LOWER 50S. HIGHS IN THE MID 70S. WINDS
GENERALLY LESS THAN 10 MPH.
.SATURDAY...COOLER. MOSTLY CLOUDY WITH SCATTERED SHOWERS AND
ISOLATED THUNDERSTORMS. LOWS IN THE MID 40S. HIGHS IN THE LOWER
60S. NORTH WINDS AROUND 10 MPH.
.SUNDAY...PARTLY CLOUDY WITH CHANCE OF SHOWERS AND THUNDERSTORMS.
LOWS AROUND 50. HIGHS AROUND 60. WINDS GENERALLY LESS THAN
10 MPH.

$$

FORECASTER...BRANHAM
REQUESTED BY...BOB EVANS
REASON FOR REQUEST...WILDFIRE
.TAG 20090812.CANYO.02/RIW