FNUS75 KRIW 172123
FWSRIW

SPOT FORECAST FOR NORTH LITTLE MT5...BLM WOD
NATIONAL WEATHER SERVICE RIVERTON WY
323 PM MDT WED APR 17 2013

FORECAST IS BASED ON IGNITION TIME OF 1100 MDT ON APRIL 19.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...
A DEPARTING WEATHER SYSTEM WILL LEAVE DRIER AND WARMER WEATHER IN
ITS WAKE TO END THE WORK WEEK. THE NEXT CHANCE FOR PRECIPITATION
WILL BE FRIDAY NIGHT AND SATURDAY AS ANOTHER WEATHER DISTURBANCE
SWEEPS SOUTHEAST ACROSS THE REGION. A STRONGER STORM IS ANTICIPATED
TO BRING COLDER TEMPERATURES AND SNOW TO NORTHERN WYOMING
SUNDAY NIGHT AND MONDAY.

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

FORECASTER...JONES

.THURSDAY...
SKY/WEATHER.........MOSTLY SUNNY IN THE MORNING...THEN
                    BECOMING PARTLY CLOUDY (40-50 PERCENT)
                    DURING THE AFTERNOON.
MAX TEMPERATURE.....AROUND 40.
MIN HUMIDITY........32-35 PERCENT.
20 FOOT WINDS.......DOWNSLOPE/DOWNVALLEY 5 TO 8 MPH UNTIL 1000...
                    THEN BECOMING UPSLOPE/UPVALLEY 5 TO 8 MPH
                    BY 1200.
RIDGE TOP WINDS.....SOUTH 10 TO 15 MPH.
MIXING HEIGHT.......RISING TO AROUND 5000 FT AGL BY 1500.
TRANSPORT WINDS.....BECOMING WEST-NORTHWEST AROUND 10 MPH BY 1200.
SMOKE DISPERSAL.....BECOMING FAIR IN THE AFTERNOON.

.THURSDAY NIGHT...
SKY/WEATHER.........PARTLY CLOUDY (50-60 PERCENT).
MIN TEMPERATURE.....25-28.
MAX HUMIDITY........69-72 PERCENT.
20 FOOT WINDS.......BECOMING DOWNSLOPE/DOWNVALLEY 4 TO 7 MPH
                    BY 2100.
RIDGE TOP WINDS.....SOUTHWEST AROUND 10 MPH.
MIXING HEIGHT.......DECREASING TO 3000 FT OR LESS BY 2000.
TRANSPORT WINDS.....BECOMING DOWNSLOPE/DOWNVALLEY 5 TO 10 MPH
                    BY 2100.
SMOKE DISPERSAL.....BECOMING POOR BY 2100.

.FRIDAY...
SKY/WEATHER.........PARTLY CLOUDY (50-60 PERCENT) IN THE MORNING...
                    THEN MOSTLY CLOUDY (60-70 PERCENT) WITH
                    ISOLATED RAIN AND SNOW SHOWERS AFTER 1400.
MAX TEMPERATURE.....45-48.
MIN HUMIDITY........32-35 PERCENT.
20 FOOT WINDS.......DOWNSLOPE/DOWNVALLEY 4 TO 7 MPH UNTIL 1000...
                    THEN BECOMING UPSLOPE/UPVALLEY 5 TO 9 MPH
                    BY 1200.
RIDGE TOP WINDS.....SOUTH AROUND 10 MPH UNTIL 1200...THEN GRADUALLY
                    BECOMING WEST AT 10 TO 15 MPH BY 1600.
MIXING HEIGHT.......GRADUALLY RISING TO 4000-5000 FT AGL BY 1400.
TRANSPORT WINDS.....SOUTH AROUND 10 MPH UNTIL 1200...THEN INCREASING
                    AND BECOMING WEST AROUND 15 MPH BY 1600.
SMOKE DISPERSAL.....POOR UNTIL 1000...THEN GRADUALLY BECOMING
                    GOOD BY 1600.

.FORECAST DAYS 3 THROUGH 5...
.FRIDAY NIGHT...MOSTLY CLOUDY WITH SCATTERED RAIN AND SNOW
SHOWERS. LOWS IN THE LOWER 30S. WINDS GENERALLY LESS THAN 10 MPH.
.SATURDAY...CLOUDY WITH SCATTERED RAIN AND SNOW SHOWERS...ESPECIALLY
DURING THE AFTERNOON. LOWS IN THE LOWER 30S. HIGHS IN THE UPPER 40S.
WINDS GENERALLY LESS THAN 10 MPH.
.SUNDAY...CLOUDY WITH A CHANCE OF RAIN AND SNOW...INCREASING
LATE IN THE DAY AND OVERNIGHT. LOWS IN THE LOWER 20S. HIGHS IN THE
LOWER 40S. WINDS GENERALLY LESS THAN 10 MPH UNTIL A COLD FRONT
PUSHES SOUTH SUNDAY EVENING. EXPECT GUSTY NORTHWEST WIND
10 TO 20 MPH BEHIND THE COLD FRONT.
.MONDAY...MOSTLY CLOUDY WITH SNOW LIKELY IN THE MORNING...THEN
DECREASING LATE IN THE DAY. LOWS AROUND 20. HIGHS IN THE LOWER 30S.
NORTHWEST WIND 10 TO 15 MPH.

$$

FORECASTER...JONES
REQUESTED BY...JANOTA
REASON FOR REQUEST...PRESCRIBED
.TAG 20130419.NORTH.01/RIW