FNUS75 KRIW 060955
FWSRIW

SPOT FORECAST FOR BULL...IA TDC
NATIONAL WEATHER SERVICE RIVERTON WY
355 AM MDT WED OCT 6 2010

FORECAST IS BASED ON REQUEST TIME OF 2025 MDT ON OCTOBER 05.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...
A CUTOFF UPPER LOW PRESSURE SYSTEM OVER THE SOUTHWEST U.S. WILL
BEGIN TO WEAKEN...AND EJECT NORTHEAST TODAY AND THURSDAY. THE
FIRST PIECE OF ENERGY WILL ROTATE NORTH AND NORTHWEST ACROSS
WYOMING THIS EVENING. A BAND OF PRECIPITATION IS EXPECTED TO PUSH
NORTH INTO THE AREA WITH THIS FEATURE TONIGHT...MAINLY BETWEEN
2100 AND MIDNIGHT...WITH A GOOD SHOT AT RECEIVING SOME RAINFALL.
A LOW LEVEL EASTERLY FLOW WILL PREVAIL TODAY WITH LITTLE TREND IN
TEMPERATURE FROM TUESDAY AND SLIGHTLY HIGHER RELATIVE HUMIDITY.

THE MAIN UPPER LOW PRESSURE SYSTEM WILL LIFT ACROSS THE AREA
FRIDAY WITH A DRIER AND COOLER SOUTHERLY FLOW PRECEDING ON
THURSDAY...AND THEN SHOWERS INCREASING THURSDAY NIGHT AND FRIDAY
WITH SOME SNOW POSSIBLE ABOVE 8000 FEET.

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

FORECASTER...MEUNIER/MURRELL

.TODAY...
SKY/WEATHER.........PARTLY CLOUDY (55-65 PERCENT) THEN BECOMING
                    MOSTLY CLOUDY (65-75 PERCENT). ISOLATED RAIN
                    SHOWERS THROUGH THE DAY WITH A THUNDERSTORM POSSIBLE
                    AFTER 1500.

MAX TEMPERATURE.....66-69 AT 7000 FEET TO 58-63 AT RIDGE TOP LEVEL.
MIN HUMIDITY........34-38 PERCENT.
20 FOOT WINDS.......EAST OR DOWN CANYON 4-8 MPH IN THE MORNING BECOMING
                    SOUTHEAST AROUND 10 MPH BETWEEN 1400 AND 1500.
RIDGE TOP WINDS.....EAST AROUND 10 MPH SHIFTING TO THE SOUTHEAST 15
                    TO 20 MPH AROUND 1500.
LAL.................1 UNTIL 1500...THEN 2.
CHC OF WETTING RAIN.2 PERCENT.
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME DOMINATED
                    FIRE GROWTH.

.TONIGHT...
SKY/WEATHER.........MOSTLY CLOUDY WITH ISOLATED SHOWERS THROUGH 2100...THEN
                    BECOMING CLOUDY WITH SCATTERED SHOWERS FROM 2100 THROUGH
                    MIDNIGHT.  CLOUDS AND SHOWERS DECREASING AFTER MIDNIGHT.
MIN TEMPERATURE.....39-42.
MAX HUMIDITY........93-96 PERCENT.

20 FOOT WINDS.......EAST SOUTHEAST 5-9 MPH. GUSTY AND ERRATIC WIND
                    NEAR THUNDERSTORMS.
RIDGE TOP WINDS.....SOUTHEAST AROUND 15 MPH VEERING SOUTH AFTER MIDNIGHT.

LAL.................2 UNTIL 2100...THEN 1.
CHC OF WETTING RAIN.15 PERCENT.
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.

.THURSDAY...
SKY/WEATHER.........PARTLY CLOUDY (45-55 PERCENT). ISOLATED RAIN
                    SHOWERS THROUGH 1500...THEN MOSTLY CLOUDY
                    WITH SCATTERED SHOWERS AND ISOLATED THUNDERSTORMS.
MAX TEMPERATURE.....61 TO 64 AT 7000 FEET.  55-59 AT RIDGE TOP.
MIN HUMIDITY........34-37 PERCENT.

20 FOOT WINDS.......SOUTHEAST 5 TO 9 MPH BECOMING WEST 5 TO 10 MPH
                    WITH GUSTS TO 15 MPH AFTER 1500.
RIDGE TOP WINDS.....SOUTHEAST AROUND 15 MPH.

LAL.................1 UNTIL 1500...THEN 2.
CHC OF WETTING RAIN.10 PERCENT.
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.

.FORECAST DAYS 3 THROUGH 5...
.THURSDAY NIGHT...MOSTLY CLOUDY. CHANCE OF SHOWERS AND ISOLATED
THUNDERSTORMS IN THE EVENING...THEN SLIGHT CHANCE OF SHOWERS AND
SNOW SHOWERS AFTER MIDNIGHT. LOWS IN THE MID 30S. WINDS GENERALLY
LESS THAN 10 MPH.

.FRIDAY...COOLER. MOSTLY CLOUDY WITH CHANCE OF SHOWERS...SNOW
SHOWERS AND ISOLATED THUNDERSTORMS. LOWS IN THE LOWER 30S. HIGHS
IN THE MID 40S. WINDS GENERALLY LESS THAN 10 MPH.

.SATURDAY...PARTLY CLOUDY WITH SLIGHT CHANCE OF SHOWERS AND SNOW
SHOWERS. LOWS IN THE LOWER 30S. HIGHS IN THE LOWER 50S. WINDS
GENERALLY LESS THAN 10 MPH.

.SUNDAY...PARTLY CLOUDY. LOWS IN THE LOWER 30S. HIGHS IN THE
UPPER 50S. WINDS GENERALLY LESS THAN 10 MPH.

$$

FORECASTER...MEUNIER/MURRELL
REQUESTED BY...DAVE WILKINS
REASON FOR REQUEST...WILDFIRE
.TAG 20101005.BULL_.01/RIW