FNUS75 KRIW 282143
FWSRIW

SPOT FORECAST FOR NORTH LITTLE MT...BLM
NATIONAL WEATHER SERVICE RIVERTON WY
342 PM MDT SUN APR 28 2013

FORECAST IS BASED ON IGNITION TIME OF 1545 MDT ON APRIL 28.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...ONE MORE WARM FAIRLY TRANQUIL SPRINGLIKE DAY IS IN STORE FOR
TODAY BEFORE ANOTHER STRONG PACIFIC TROUGH BRINGS MORE ACTIVE
WEATHER TO THE BURN AREA EARLY IN THE WEEK. EXPECT WINDY CONDITIONS
MONDAY ALONG WITH A GOOD CHANCE OF ACCUMULATING SNOWFALL TUESDAY THROUGH
WEDNESDAY MORNING. TEMPERATURES WILL LIKELY BE 30 DEGREES COLDER TUESDAY
THEN THEY HAVE BEEN OVER THE WEEKEND.

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

FORECASTER...LIPSON

.MONDAY...
SKY/WEATHER.........MOSTLY CLOUDY (75-85 PERCENT). ISOLATED RAIN
                    SHOWERS LATE IN THE MORNING. SCATTERED RAIN
                    SHOWERS IN THE AFTERNOON.
MAX TEMPERATURE.....59-62.
MIN HUMIDITY........22-25 PERCENT.
20 FOOT WINDS.......SOUTH WINDS 11 TO 21 MPH WITH GUSTS TO AROUND
                    35 MPH SHIFTING TO THE WEST SOUTHWEST 22 TO 23 MPH WITH
                    GUSTS TO AROUND 40 MPH BY 1500 AND THEN
                    NORTHWEST AT AROUND THE SAME SPEEDS BY 1700.
RIDGE TOP WINDS.....SOUTH 20 TO 25 MPH INCREASING TO WEST AROUND 35
                    MPH LATE IN THE AFTERNOON.
HAINES INDEX........2 OR VERY LOW POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......2800-3800 FT AGL INCREASING TO 6200-7200 FT AGL
                    IN THE AFTERNOON.
TRANSPORT WINDS.....SOUTH 24 TO 29 MPH INCREASING TO WEST AROUND 37
                    MPH LATE IN THE AFTERNOON.
SMOKE DISPERSAL.....GOOD (71100 KNOT-FT) INCREASING TO EXCELLENT
                    (175400 KNOT-FT) IN THE AFTERNOON.

.MONDAY NIGHT...
SKY/WEATHER.........MOSTLY CLOUDY (70-80 PERCENT). ISOLATED
                    EVENING SHOWERS AND THUNDERSTORMS IN THE
                    EVENING AND ISOLATED SHOWERS AFTER MIDNIGHT.
MIN TEMPERATURE.....34.
MIN HUMIDITY........65 PERCENT.
20 FOOT WINDS.......NORTH NORTHWEST 10 TO 20 MPH.
RIDGE TOP WINDS.....NORTH 12 TO 22 MPH.
HAINES INDEX........2.
MIXING HEIGHT.......1600 FEET.
TRANSPORT WINDS.....WEST AT 30 MPH BECOMING NORTHWEST AT 15 TO 20 MPH AFTER
                    MIDNIGHT.
SMOKE DISPERSAL.....FAIR.

.TUESDAY...
SKY/WEATHER.........MOSTLY CLOUDY (70-80 PERCENT). CHANCE OF SNOW
                    IN THE MORNING...THEN SNOW LIKELY IN THE
                    AFTERNOON.
MAX TEMPERATURE.....34-37.
MIN HUMIDITY........40-43 PERCENT.
20 FOOT WINDS.......NORTH NORTHWEST 10 TO 15 MPH.
RIDGE TOP WINDS.....NORTHWEST AROUND 15 MPH.
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......3800-4800 FT AGL INCREASING TO 6900-7900 FT AGL
                    IN THE AFTERNOON.
TRANSPORT WINDS.....NORTHWEST 15 TO 18 MPH.
SMOKE DISPERSAL.....FAIR (59200 KNOT-FT) INCREASING TO VERY GOOD
                    (109400 KNOT-FT) IN THE AFTERNOON.

.TUESDAY NIGHT......
SKY/WEATHER.........MOSTLY CLOUDY (90 PERCENT).
MIN TEMPERATURE.....24 TO 26.
MIN HUMIDITY........70 TO 75 PERCENT.
20 FOOT WINDS.......NORTH 11 MPH.
RIDGE TOP WINDS.....NORTH NORTHWST WINDS 20 MPH DECREASING TO 10 MPH BY DAWN.
HAINES INDEX........2 OR VERY LOW POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH. .
MIXING HEIGHT.......500 FEET.
TRANSPORT WINDS.....NORTHWEST 20 MPH DECREASING TO 6 MPH.
SMOKE DISPERSAL.....POOR.

.WEDNESDAY...
SKY/WEATHER.........PARTLY CLOUDY (40 TO 60 PERCENT).
MAX TEMPERATURE.....45 TO 48.
MIN HUMIDITY........34 TO 35 PERCENT.
20 FOOT WINDS.......SOUTHEAST LESS THAN 10 MPH.
RIDGE TOP WINDS.....NORTH NORTHWEST 5 MPH.
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH. .
MIXING HEIGHT.......10500 FEET AGL.
TRANSPORT WINDS.....NORTHWEST 6 MPH INCREASING TO 15 TO 20 MPH IN THE AFTERNOON.
SMOKE DISPERSAL.....VERY GOOD.

.FORECAST DAYS 5 THROUGH 6...
.THURSDAY...WARMER. MOSTLY CLEAR. LOWS IN THE UPPER 30S. HIGHS IN
THE MID 50S. WINDS GENERALLY LESS THAN 10 MPH.
.FRIDAY...PARTLY CLOUDY WITH ISOLATED SHOWERS. LOWS IN THE UPPER
30S. HIGHS IN THE UPPER 50S. WINDS GENERALLY LESS THAN 10 MPH.

$$

FORECASTER...LIPSON
REQUESTED BY...CATHY HUTTON
REASON FOR REQUEST...PRESCRIBED
.TAG 20130428.NORTH.03/RIW