FNUS75 KRIW 091523
FWSRIW

SPOT FORECAST FOR BIG HORN RIVER PILE BURNING...BLM WOD
NATIONAL WEATHER SERVICE RIVERTON WY
923 AM MDT MON MAR 9 2009

FORECAST IS BASED ON IGNITION TIME OF 0930 MDT ON MARCH 09.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...
A VERY COLD WINTER-LIKE STORM SYSTEM WILL CONTINUE TO PRODUCE
WIDESPREAD LIGHT SNOW TO THE SOUTHERN BIG HORN BASIN TODAY THROUGH
TONIGHT. LIGHT NORTH TO NORTHWEST WIND WITH STABLE CONDITIONS
WILL CONTINUE OVER THE REGION THROUGH TUESDAY MORNING. UNSTABLE
CONDITIONS ARE EXPECTED TUESDAY AFTERNOON AS THE COLD POOL ALOFT
ASSOCIATED WITH THIS STORM MOVES OVERHEAD. POOR SOME DISPERSAL IS
EXPECTED TODAY THROUGH TUESDAY MORNING WITH GOOD TO EXCELLENT
SMOKE DISPERSAL EXPECTED TUESDAY AFTERNOON. A DRY NORTHWEST FLOW
ALOFT WILL BEGIN TO DEVELOP OVER THE DISTRICT ON WEDNESDAY.


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

FORECASTER...CHURCH

.TODAY...
SKY/WEATHER.........CLOUDY (90-100 PERCENT). LIGHT SNOW.
MAX TEMPERATURE.....15-19.
MIN HUMIDITY........74-79 PERCENT.
20 FOOT WINDS.......NORTH TO NORTHWEST WIND 4 TO 7 MPH.
RIDGE TOP WINDS.....VARIABLE 3 TO 6 MPH.
HAINES INDEX........2. LOW.
MIXING HEIGHT.......5864 FT MSL.
TRANSPORT WINDS.....VARIABLE 4 TO 7 MPH.
SMOKE DISPERSAL.....POOR.

.TONIGHT...
SKY/WEATHER.........CLOUDY (90-100 PERCENT). SNOW.
MIN TEMPERATURE.....6-10.
MAX HUMIDITY........92-96 PERCENT.
20 FOOT WINDS.......NORTH TO NORTHWEST 4 TO 8 MPH.
RIDGE TOP WINDS.....EAST 3 TO 6 MPH.
HAINES INDEX........2. LOW
MIXING HEIGHT.......234 FT MSL.
TRANSPORT WINDS.....EAST 5 TO 10 MPH.
SMOKE DISPERSAL.....POOR.

.TUESDAY...
SKY/WEATHER.........MOSTLY CLOUDY (60-70 PERCENT). SLIGHT CHANCE OF
                    SNOW IN THE MORNING...THEN SLIGHT CHANCE OF
                    SNOW SHOWERS IN THE AFTERNOON.
MAX TEMPERATURE.....22-26.
MIN HUMIDITY........45-49 PERCENT.
20 FOOT WINDS.......NORTHWEST WINDS 4 TO 8 MPH.
RIDGE TOP WINDS.....NORTHWEST 10 TO 15 MPH.
HAINES INDEX........3. LOW.
MIXING HEIGHT.......6200 FT MSL.
TRANSPORT WINDS.....NORTHWEST 7 TO 12 MPH.
SMOKE DISPERSAL.....POOR IN THE MORNING BECOMING GOOD TO EXCELLENT AFTER
                    1300.

.FORECAST DAYS 3 THROUGH 5...
.TUESDAY NIGHT...PARTLY CLOUDY. LOWS AROUND 5. WINDS GENERALLY
LESS THAN 10 MPH.
.WEDNESDAY...PARTLY CLOUDY. LOWS AROUND 15. HIGHS IN THE LOWER
30S. WINDS GENERALLY LESS THAN 10 MPH.
.THURSDAY...MOSTLY CLEAR. LOWS IN THE LOWER 20S. HIGHS AROUND 40.
WINDS GENERALLY LESS THAN 10 MPH.
.FRIDAY...MOSTLY CLEAR. LOWS IN THE MID 20S. HIGHS AROUND 50.
WINDS GENERALLY LESS THAN 10 MPH.

$$

FORECASTER...CHURCH
REQUESTED BY...SAGE DECKER
REASON FOR REQUEST...PRESCRIBED
.TAG 20090309.BIGHO.01/RIW