FNUS75 KRIW 111840
FWSRIW

SPOT FORECAST FOR WRL 4E HAZ...WORLAND F.D.
NATIONAL WEATHER SERVICE RIVERTON WY
1240 PM MDT MON APR 11 2011

FORECAST IS BASED ON INCIDENT TIME OF 1600 MDT ON APRIL 11.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...
SOME LIGHT SHOWERS MAY DEVELOP OVERNIGHT AHEAD OF A COLD FRONT
WHICH WILL MOVE THROUGH DURING THE EARLY MORNING HOURS TUESDAY.
HIGHER RH AND GUSTY WINDS CAN BE EXPECTED TUESDAY IN THE WAKE OF
THE COLD FRONT AS COOLER TEMPERATURES TAKE HOLD AND GROUND
MOISTURE INCREASES WITH A CHANCE OF SNOW DURING THE MORNING HOURS.

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

FORECASTER...BERC

.TONIGHT...
SKY/WEATHER.........PARTLY CLOUDY (40-50 PERCENT).
MIN TEMPERATURE.....33-36.
MAX HUMIDITY........87-90 PERCENT.
20 FOOT WINDS.......DOWNSLOPE/DOWNVALLEY 4-7 MPH.
RIDGE TOP WINDS.....SOUTHEAST AROUND 10 MPH SHIFTING TO THE
                    SOUTHWEST AFTER MIDNIGHT BECOMING NORTHWEST
                    AFTER 4 AM WITH COLD FRONT PASSAGE.
MIXING HEIGHT.......4000 FT AGL DECREASING TO 300 FT AGL AFTER
                    MIDNIGHT.
TRANSPORT WINDS.....SOUTHEAST AROUND 14 MPH SHIFTING TO THE
                    SOUTHWEST AFTER MIDNIGHT.
SMOKE DISPERSAL.....POOR TO FAIR (2500-48000 KNOT-FT).

.TUESDAY...
SKY/WEATHER.........CLOUDY (80-90 PERCENT). CHANCE OF SNOW SHOWERS
                    IN THE MORNING. CHANCE OF RAIN SHOWERS THROUGH
                    THE DAY.
MAX TEMPERATURE.....46-49.
MIN HUMIDITY........60-63 PERCENT.
20 FOOT WINDS.......NORTHWEST WINDS AROUND 11 MPH WITH HIGHER GUSTS
                    EARLY IN THE MORNING BECOMING UPSLOPE/UPVALLEY
                    5-9 MPH.
RIDGE TOP WINDS.....NORTH 10 TO 15 MPH.
MIXING HEIGHT.......900 FT AGL INCREASING TO 3800 FT AGL IN THE
                    AFTERNOON.
TRANSPORT WINDS.....NORTH 12 TO 20 MPH.
SMOKE DISPERSAL.....POOR (13400-37300 KNOT-FT).

.FORECAST DAYS 3 THROUGH 5...
.TUESDAY NIGHT...CLOUDY. SLIGHT CHANCE OF SHOWERS IN THE
EVENING...THEN SLIGHT CHANCE OF SNOW SHOWERS AFTER MIDNIGHT. LOWS
IN THE LOWER 30S. WINDS GENERALLY LESS THAN 10 MPH.
.WEDNESDAY...MOSTLY CLOUDY WITH CHANCE OF SHOWERS...SNOW SHOWERS
AND ISOLATED THUNDERSTORMS. LOWS IN THE LOWER 30S. HIGHS IN THE
LOWER 50S. SOUTHEAST WINDS AROUND 10 MPH.
.THURSDAY...MOSTLY CLOUDY WITH CHANCE OF SHOWERS...SNOW SHOWERS
AND ISOLATED THUNDERSTORMS. LOWS IN THE UPPER 20S. HIGHS IN THE
UPPER 40S. WINDS GENERALLY LESS THAN 10 MPH.
.FRIDAY...PARTLY CLOUDY. LOWS AROUND 30. HIGHS IN THE MID 40S.
WINDS GENERALLY LESS THAN 10 MPH.
.SATURDAY...MOSTLY CLOUDY. LOWS IN THE LOWER 30S. HIGHS IN THE
MID 50S. WINDS GENERALLY LESS THAN 10 MPH.

$$

FORECASTER...BERC
REQUESTED BY...COKER
REASON FOR REQUEST...HAZMAT
.TAG 20110411.WRL4E.01/RIW