FNUS75 KRIW 221455
FWSRIW

SPOT FORECAST FOR WEST SLOPE RX...BLM CAD
NATIONAL WEATHER SERVICE RIVERTON WY
855 AM MDT MON MAR 22 2010

FORECAST IS BASED ON IGNITION TIME OF 1000 MDT ON MARCH 22.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...

A COLD FRONT WILL MOVE THROUGH THE AREA EARLY THIS AFTERNOON BETWEEN 1200
AND 1400 LDT. RELATIVE HUMIDITY WILL STAY FAIRLY HIGH FOR DAYTIME VALUES
AHEAD OF THE COLD FRONT AND BEHIND THE FRONT AS WELL. AN ISOLATED
THUNDERSTORM IS POSSIBLE THIS AFTERNOON IN THE UNSTABLE AIRMASS ALONG AND
BEHIND THE COLD FRONT. PERIODS OF LIGHT SNOW CAN BE EXPECTED THIS EVENING...
FOLLOWED BY SCATTERED SNOW SHOWERS AFTER MIDNIGHT. TUESDAY WILL BE MOSTLY
CLOUDY AND COOL WITH HIGH DAYTIME RELATIVE HUMIDITY AND A FEW LIGHT SHOWERS.

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

FORECASTER...SMITH

.TODAY...
SKY/WEATHER.........CLOUDY (80-90 PERCENT). SCATTERED RAIN SHOWERS
                    AND SNOW SHOWERS IN THE MORNING...THEN RAIN
                    SHOWERS LIKELY AND ISOLATED THUNDERSTORMS IN
                    THE AFTERNOON.
MAX TEMPERATURE.....42-45.
MIN HUMIDITY........47-50 PERCENT.
WIND (20 FT)........UPSLOPE/UPVALLEY 5-9 MPH BECOMING NORTHWEST
                    AT 1300 LDT 10 TO 15 MPH WITH GUSTS TO 22 MPH. GUSTY
                    AND ERRATIC WINDS EXPECTED NEAR THUNDERSTORMS IN
                    THE AFTERNOON.
RIDGE TOP WINDS.....WEST 15 MPH...BECOMING NORTHWEST AT 1200 LDT 15 TO
                    20 MPH WITH GUSTS TO 25 MPH.
LAL.................1...THEN 2 AFTER 1400 LDT.
CWR.................15 PERCENT.
HAINES INDEX........3.
MIXING HEIGHT........1500 TO 2000 FEET THIS MORNING...BECOMING 7000 TO
                     7500 FEET AFTER 1400 LDT.
TRANSPORT WINDS.....WEST 15 TO 20 MPH...THEN NORTHWEST AROUND 20 MPH AT
                    1200 LDT.
SMOKE DISPERSAL.....FAIR THIS MORNING...THEN EXCELLENT AFTER 1300 LDT.

.TONIGHT...
SKY/WEATHER.........CLOUDY (90-100 PERCENT). CHANCE OF RAIN SHOWERS
                    AND ISOLATED THUNDERSTORMS THROUGH 1900 LDT...THEN
                    PERIODS OF LIGHT SNOW SHOWERS THIS EVENING.
                    SCATTERED SNOW SHOWERS AFTER MIDNIGHT. 1 TO 2 INCHES
                    POSSIBLE.
MIN TEMPERATURE.....29-32.
MAX HUMIDITY........79-82 PERCENT.
WIND (20 FT)........NORTH WINDS 10 TO 15 MPH WITH GUSTS TO 25 MPH.
                    GUSTY AND ERRATIC WINDS EXPECTED NEAR THUNDERSTORMS
                    THROUGH 1900 LDT.
RIDGE TOP WINDS.....NORTH 15 TO 20 WITH GUSTS TO 25 MPH.
LAL.................2 UNTIL 1900 LDT...THEN 1.
CWR.................30 PERCENT.
HAINES INDEX........3 UNTIL 1900 LDT...THEN 2.
MIXING HEIGHT.......5000 TO 6000 FEET THROUGH 2200 LDT...THEN 800 T0 1200
                    FEET.
TRANSPORT WINDS.....NORTH AROUND 20 MPH.
SMOKE DISPERSAL.....EXCELLENT THROUGH 2200 LDT...THEN GOOD.

.TUESDAY...
SKY/WEATHER.........MOSTLY CLOUDY (70-80 PERCENT). SCATTERED SNOW
                    SHOWERS IN THE MORNING...THEN ISOLATED RAIN
                    SHOWERS AND SNOW SHOWERS IN THE AFTERNOON.
MAX TEMPERATURE.....36-39.
MIN HUMIDITY........55-58 PERCENT.
WIND (20 FT)........NORTH WINDS 10 TO 15 MPH.
RIDGE TOP WINDS.....NORTH AROUND 15 MPH
LAL.................1
CWR.................10 PERCENT.
HAINES INDEX........3.
MIXING HEIGHT.......6000 TO 6500 FEET.
TRANSPORT WINDS.....NORTH 15 TO 20 MPH.
SMOKE DISPERSAL.....GOOD TO EXCELLENT.

.FORECAST DAYS 3 THROUGH 5...
.TUESDAY NIGHT...PARTLY CLOUDY. LOWS IN THE UPPER 20S. WINDS
GENERALLY LESS THAN 10 MPH.
.WEDNESDAY...PARTLY CLOUDY. LOWS IN THE MID 20S. HIGHS IN THE
UPPER 40S. WINDS GENERALLY LESS THAN 10 MPH.
.THURSDAY...MOSTLY CLOUDY. LOWS IN THE LOWER 30S. HIGHS IN THE
LOWER 50S. WINDS GENERALLY LESS THAN 10 MPH.
.FRIDAY...MOSTLY CLOUDY. SLIGHT CHANCE OF SHOWERS IN THE
AFTERNOON. SLIGHT CHANCE OF SNOW. LOWS IN THE UPPER 20S. HIGHS IN
THE MID 40S. WINDS GENERALLY LESS THAN 10 MPH.

$$

FORECASTER...SMITH
REQUESTED BY...CODY DISPATCH
REASON FOR REQUEST...PRESCRIBED
.TAG 20100322.WESTS.01/RIW