FNUS75 KRIW 021937
FWSRIW

SPOT FORECAST FOR RAMSHORN...IA CDC
NATIONAL WEATHER SERVICE RIVERTON WY
137 PM MDT WED SEP 2 2009

FORECAST IS BASED ON REQUEST TIME OF 1326 MDT ON SEPTEMBER 02.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...

UPPER HIGH PRESSURE WILL MOVE ACROSS THE REGION THIS AFTERNOON
THROUGH THURSDAY WITH LIGHT AND TERRAIN DRIVEN WINDS EXPECTED
THROUGH THURSDAY. LIMITED MOISTURE BENEATH THE UPPER LEVEL HIGH
SHOULD BE SUFFICIENT TO GENERATE ISOLATED AFTERNOON AND EVENING
SHOWERS AND THUNDERSTORMS TODAY AND THURSDAY. THE CHANCE OF WETTING
RAIN WILL BE LESS THAN 5 PERCENT TODAY AND THURSDAY...BUT ANY
THUNDERSTORMS COULD PRODUCE OUTFLOW WIND GUSTS UP TO 45 MPH. MINIMUM
RELATIVE HUMIDITIES WILL DECREASE SLIGHTLY THURSDAY...BUT WILL STILL
BE ABOVE 20 PERCENT.

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

FORECASTER...SMITH

.THIS AFTERNOON...
SKY/WEATHER.........PARTLY CLOUDY (25-35 PERCENT). ISOLATED SHOWERS AND
                    THUNDERSTORMS.
MAX TEMPERATURE.....AROUND 70.
MIN HUMIDITY........23-26 PERCENT.
20 FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH. GUSTY AND ERRATIC WINDS
                    EXPECTED NEAR THUNDERSTORMS.
RIDGE TOP WINDS.....WEST 10 TO 15 MPH.
LAL.................2.
CHC OF WETTING RAIN.LESS THAN 5 PERCENT.
HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.

.TONIGHT...
SKY/WEATHER.........MOSTLY CLEAR (10-15 PERCENT).
MIN TEMPERATURE.....40-43.
MAX HUMIDITY........64-67 PERCENT.
20 FOOT WINDS.......DOWNSLOPE/DOWNVALLEY 4-7 MPH.
RIDGE TOP WINDS.....NORTHWEST 5 TO 10 MPH.
LAL.................1.
CHC OF WETTING RAIN.ZERO PERCENT.
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED
                    FIRE GROWTH.

.THURSDAY...
SKY/WEATHER.........MOSTLY SUNNY (20-30 PERCENT) THEN BECOMING
                    PARTLY CLOUDY (35-45 PERCENT). SLIGHT CHANCE OF
                    SHOWERS AND THUNDERSTORMS IN THE AFTERNOON.
MAX TEMPERATURE.....73-76.
MIN HUMIDITY........21-24 PERCENT.
20 FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH. GUSTY AND ERRATIC
                    WINDS EXPECTED NEAR THUNDERSTORMS IN THE
                    AFTERNOON.
RIDGE TOP WINDS.....WEST 5 TO 10 MPH.
LAL.................1 UNTIL 1200...THEN 2.
CHC OF WETTING RAIN.LESS THAN 5 PERCENT.
HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.

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

$$

FORECASTER...SMITH
REQUESTED BY...BOB EVANS
REASON FOR REQUEST...WILDFIRE
.TAG 20090902.RAMSH.01/RIW