FNUS75 KRIW 111356
FWSRIW

SPOT FORECAST FOR WIGGINS R A T...USFS SHF
NATIONAL WEATHER SERVICE RIVERTON WY
756 AM MDT WED APR 11 2012

FORECAST IS BASED ON IGNITION TIME OF 0755 MDT ON APRIL 11.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...AFTER A DRY START TODAY CLOUDS WILL INCREASE THROUGH
THE MORNING. A COLD FRONT WILL MOVE CLOSER TO THE AREA THIS AFTERNOON
WITH ISOLATED SHOWERS AND THUNDERSTORMS AFTER 1400 THROUGH
AROUND 2200. THE COLD FRONT WILL MOVE THROUGH THE AREA BETWEEN
1800 AND 2200 WITH GUSTY WINDS. COLDER AIR WILL MOVE IN BEHIND THE FRONT
AND BRING A THREAT OF RAIN AND SNOW SHOWERS LATER TONIGHT AND INTO
THURSDAY.


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

FORECASTER...HATTINGS

.TODAY...
SKY/WEATHER.........MOSTLY SUNNY (20-30 PERCENT) THEN BECOMING
                    PARTLY CLOUDY (35-45 PERCENT) AFTER 1000 THEN
                    MOSTLY CLOUDY (55-65 PERCENT) WITH ISOLATED
                    SHOWERS AND THUNDERSTORMS AFTER 1400.
MAX TEMPERATURE.....60-64.
MIN HUMIDITY........13-18 PERCENT.
20 FOOT WINDS.......SOUTH TO SOUTHEAST AT 5-10 MPH INCREASING TO
                    SOUTHEAST AT 8 TO 16 MPH WITH GUSTS TO 15 TO 25
                    MPH AFTER 1100. GUSTY AND ERRATIC WINDS EXPECTED
                    NEAR SHOWERS AND THUNDERSTORMS AFTER 1400.
RIDGE TOP WINDS.....SOUTHEAST 5 TO 10 MPH SHIFTING TO THE SOUTH
                    AROUND 15 MPH LATE IN THE AFTERNOON.
LAL.................1 UNTIL 1400...THEN 2.
CHC OF WETTING RAIN.3 PERCENT.
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED
                    FIRE GROWTH.
MIXING HEIGHT.......1300-2300 FT AGL INCREASING TO 5500-6500 FT AGL
                    IN THE AFTERNOON.
TRANSPORT WINDS.....LIGHT AND VARIABLE WINDS BECOMING SOUTH 10 TO 20
                    MPH AFTER 1100.
SMOKE DISPERSAL.....POOR (14100 KNOT-FT) INCREASING TO GOOD (71200
                    KNOT-FT) AFTER 1300.

.TONIGHT...
SKY/WEATHER.........MOSTLY CLOUDY (55-65 PERCENT). ISOLATED
                    THUNDERSTORMS AND SCATTERED RAIN
                    SHOWERS UNTIL 2300. SCATTERED RAIN AND SNOW
                    SHOWERS AFTER 2300.
MIN TEMPERATURE.....31-34.
MAX HUMIDITY........75-80 PERCENT.
20 FOOT WINDS.......BECOMING WEST TO SOUTHWEST 10 TO 15 MPH WITH GUSTS
                    UP TO 25 MPH AFTER 1900. GUSTY AND ERRATIC WINDS
                    EXPECTED NEAR THUNDERSTORMS IN THE EVENING.
RIDGE TOP WINDS.....SOUTH TO SOUTHEAST AT 10 TO 20 MPH SHIFTING TO WEST
                    TO SOUTHWET AT 15 TO 25 MPH AFTER MIDNIGHT WITH HIGHER
                    GUSTS.
LAL.................2 UNTIL 2200...THEN 1.
CHC OF WETTING RAIN.10 PERCENT.
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......5000-6000 FT AGL DECREASING TO 2400 FT AGL
                    AFTER MIDNIGHT.
TRANSPORT WINDS.....SOUTH 16 TO 17 MPH SHIFTING TO THE WEST 16 TO
                    20 MPH AFTER MIDNIGHT.
SMOKE DISPERSAL.....GOOD BECOMING POOR AFTER MIDNIGHT (35900-71100 KNOT-FT).

.THURSDAY...
SKY/WEATHER.........MOSTLY CLOUDY (60-70 PERCENT). SCATTERED SNOW
                    SHOWERS IN THE MORNING. SCATTERED RAIN AND SNOW
                    SHOWERS IN THE AFTERNOON.
MAX TEMPERATURE.....42-45.
MIN HUMIDITY........30-35 PERCENT.
20 FOOT WINDS.......WEST WINDS 10 TO 20 MPH. GUSTS UP TO 30 MPH.
                    GUSTY AND ERRATIC AT TIMES IN THE AFTERNOON.
RIDGE TOP WINDS.....WEST 15 TO 25 MPH.
LAL.................1.
CHC OF WETTING RAIN.3 PERCENT.
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......3800-4800 FT AGL INCREASING TO 6300-7300 FT AGL
                    IN THE AFTERNOON.
TRANSPORT WINDS.....WEST 15 TO 25 MPH.
SMOKE DISPERSAL.....FAIR UNTIL 1200... THEN GOOD (70000-100000 KNOT-FT).

.FORECAST DAYS 3 THROUGH 5...
.THURSDAY NIGHT...PARTLY CLOUDY. ISOLATED SHOWERS AND SNOW
SHOWERS IN THE EVENING...THEN ISOLATED SNOW SHOWERS AFTER
MIDNIGHT. LOWS IN THE MID 20S. WEST WINDS AROUND 14 MPH.
.FRIDAY...MOSTLY CLOUDY. SCATTERED SHOWERS AND SNOW SHOWERS. LOWS
IN THE MID 20S. HIGHS IN THE LOWER 40S. WINDS GENERALLY LESS THAN
10 MPH.
.SATURDAY...MOSTLY CLOUDY WITH SHOWERS AND SNOW SHOWERS LIKELY.
LOWS IN THE UPPER 20S. HIGHS IN THE UPPER 30S. WINDS GENERALLY
LESS THAN 10 MPH.
.SUNDAY...MOSTLY CLOUDY. SLIGHT CHANCE OF SNOW. LOWS IN THE MID
20S. HIGHS IN THE UPPER 30S. WINDS GENERALLY LESS THAN 10 MPH.

$$

FORECASTER...HATTINGS
REQUESTED BY...JAY SLAGOWSKI
REASON FOR REQUEST...PRESCRIBED
.TAG 20120411.WIGGI.02/RIW