FNUS75 KRIW 191002
FWSRIW

SPOT FORECAST FOR NORTH LITTLE MT5...BLM WOD
NATIONAL WEATHER SERVICE RIVERTON WY
402 AM MDT FRI APR 19 2013

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

.DISCUSSION...
AN APPROACHING DISTURBANCE WILL INCREASE THE MOUNTAIN TOP WINDS THIS
AFTERNOON AND PRODUCE A FEW LIGHT SHOWERS OVER THE HIGHER TERRAIN.
THE CHANCES OF SHOWERS WILL INCREASE TONIGHT INTO SATURDAY ALONG
WITH A SLIGHT CHANCE OF THUNDERSTORMS SATURDAY AFTERNOON. IT WILL BE
COLD ENOUGH FOR SNOW SHOWERS LATER TONIGHT AND SATURDAY MORNING WITH
MORE RAIN SHOWERS SATURDAY AFTERNOON.


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

FORECASTER...SKRBAC

.TODAY...
SKY/WEATHER.........PARTLY CLOUDY (55-65 PERCENT) THEN BECOMING
                    MOSTLY CLOUDY (60-70 PERCENT). SLIGHT CHANCE OF
                    OF RAIN SHOWERS IN THE AFTERNOON.
MAX TEMPERATURE.....46-49.
MIN HUMIDITY........29-32 PERCENT.
20 FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH BECOMING SOUTHEAST AROUND
                    10 MPH IN THE AFTERNOON. GUSTS UP TO 20 MPH.
RIDGE TOP WINDS.....SOUTHWEST 5 TO 10 MPH INCREASING TO AROUND 15
                    MPH IN THE AFTERNOON.
MIXING HEIGHT.......3200-3600 FT AGL INCREASING TO 4500-5000 FT AGL IN
                    THE AFTERNOON.
TRANSPORT WINDS.....WEST 10 TO 15 MPH THROUGH NOON THEN INCREASING TO
                    20 TO 25 MPH.
SMOKE DISPERSAL.....POOR TO FAIR THROUGH NOON (32000-54000 KNOT-FT) THEN
                    BECOMING GOOD AND THEN VERY GOOD BY MID AFTERNOON
                    (90000-125000 KNOT-FT).

.TONIGHT...
SKY/WEATHER.........MOSTLY CLOUDY (70-80 PERCENT). CHANCE OF RAIN
                    IN THE EVENING. CHANCE OF SNOW IN THE LATE
                    EVENING AND OVERNIGHT.
MIN TEMPERATURE.....31-34.
MAX HUMIDITY........82-85 PERCENT.
20 FOOT WINDS.......SOUTHEAST WINDS 8 TO 11 MPH WITH GUSTS TO 15 MPH IN
                    THE EVENING BECOMING DOWNSLOPE/DOWNVALLEY 4-7 MPH.
RIDGE TOP WINDS.....SOUTHWEST 15 TO 20 MPH DECREASING TO 5 TO 10
                    MPH AFTER MIDNIGHT.
MIXING HEIGHT.......3100-4100 FT AGL DECREASING TO 1200-1700 FT AGL
                    AFTER MIDNIGHT.
TRANSPORT WINDS.....SOUTHWEST 15 TO 20 MPH BECOMING NORTHWEST AFTER MIDNIGHT.
SMOKE DISPERSAL.....GOOD (90600 KNOT-FT) DECREASING TO POOR (20000-34000
                    KNOT-FT) AFTER MIDNIGHT.

.SATURDAY...
SKY/WEATHER.........CLOUDY (75-85 PERCENT). SCATTERED SNOW SHOWERS
                    IN THE MORNING. SCATTERED RAIN SHOWERS IN THE
                    AFTERNOON ALONG WITH A SLIGHT CHANCE OF A
                    THUNDERSTORM.
MAX TEMPERATURE.....46-49.
MIN HUMIDITY........40-43 PERCENT.
20 FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH. GUSTY AND ERRATIC
                    WINDS EXPECTED NEAR THUNDERSTORMS IN THE
                    AFTERNOON.
RIDGE TOP WINDS.....NORTHWEST 15 TO 20 MPH...BECOMING SOUTHWEST 12 TO 17 MPH
                    IN THE AFTERNOON.
MIXING HEIGHT.......3000-3500 FT AGL INCREASING TO 4500-5500 FT AGL
                    IN THE AFTERNOON.
TRANSPORT WINDS.....WEST 15 TO 20 MPH...BECOMING SOUTHWEST IN THE AFTERNOON.
SMOKE DISPERSAL.....FAIR TO GOOD (45000-70000 KNOT-FT) INCREASING TO
                    GOOD TO VERY GOOD (67000-110000 KNOT-FT) IN THE AFTERNOON.

.FORECAST DAYS 3 THROUGH 5...
.SATURDAY NIGHT...MOSTLY CLOUDY. SCATTERED SHOWERS IN THE
EVENING...THEN CHANCE OF SNOW AFTER MIDNIGHT. LOWS AROUND 30.
WINDS GENERALLY LESS THAN 10 MPH.
.SUNDAY...CLOUDY WITH RAIN AND SNOW LIKELY. LOWS AROUND 20. HIGHS
IN THE LOWER 40S. WINDS GENERALLY LESS THAN 10 MPH.
.MONDAY...COLDER. MOSTLY CLOUDY. CHANCE OF SNOW. LOWS AROUND 19.
HIGHS AROUND 30. WINDS GENERALLY LESS THAN 10 MPH.
.TUESDAY...NOT AS COOL. PARTLY CLOUDY. SLIGHT CHANCE OF SNOW.
LOWS IN THE MID 20S. HIGHS IN THE LOWER 40S. WINDS GENERALLY LESS
THAN 10 MPH.

$$

FORECASTER...SKRBAC
REQUESTED BY...JANOTA
REASON FOR REQUEST...PRESCRIBED
.TAG 20130419.NORTH.02/RIW