Suppression Forecast
Issued by NWS Riverton, WY

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000
FNUS75 KRIW 221042
FWSRIW

SPOT FORECAST FOR NORTH LITTLE MTN RX...BLM WOD
NATIONAL WEATHER SERVICE RIVERTON WY
442 AM MDT TUE APR 22 2014

FORECAST IS BASED ON IGNITION TIME OF 1200 MDT ON APRIL 22.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...

AHEAD OF A STORM SYSTEM...A VERY WARM AND WINDY SPRING DAY WILL OCCUR
TODAY WITH VERY LOW HUMIDITY. ALTHOUGH THE ATMOSPHERE IS RELATIVELY
DRY...CANNOT RULE OUT AN ISOLATED SHOWER OR THUNDERSTORM TODAY.
THE ASSOCIATED COLD FRONT WITH THIS STORM SYSTEM WILL PUSH ACROSS
THE FIRE SITE LATE TONIGHT SWITCHING WINDS FROM THE SOUTHWEST...TO
THE NORTHWEST OR NORTH. THE BEST CHANCE OF PRECIPITATION FROM THIS
SYSTEM WILL BE BETWEEN 3 AM AND NOON WEDNESDAY. A WETTING EVENT IS
NOT EXPECTED.

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

FORECASTER...MURRELL

.TODAY...
SKY/WEATHER.........MOSTLY CLOUDY (75 PERCENT) IN THE MORNING.
                    PARTLY CLOUDY (50-60 PERCENT) WITH VERY
                    ISOLATED RAIN SHOWERS AND POSSIBLY A
                    THUNDERSTORM IN THE AFTERNOON.
MAX TEMPERATURE.....75.
MIN HUMIDITY........15 PERCENT.
20 FOOT WINDS.......VARIABLE 3-6 MPH BECOMING SOUTH 5-10 MPH
                    BY 10 AM...THEN INCREASING TO AROUND 15 MPH BY
                    3 PM. GUSTS AROUND 30 MPH LATE IN THE AFTERNOON.
                    GUSTY AND ERRATIC WINDS NEAR ANY THUNDERSTORMS.
RIDGE TOP WINDS.....SOUTH 10-15 MPH INCREASING TO 20-25 MPH
                    IN THE AFTERNOON.
LAL.................1 UNTIL 2 PM...THEN 2.
CHC OF WETTING RAIN.NEAR ZERO.
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......2200 FT AGL INCREASING TO 9500 FT AGL
                    IN THE AFTERNOON.
TRANSPORT WINDS.....SOUTH 10-15 MPH...BECOMING SOUTH SOUTHWEST
                    25-35 MPH IN THE AFTERNOON.
SMOKE DISPERSAL.....POOR INCREASING TO GOOD AROUND 11 AM THEN
                    EXCELLENT (180000 KNOT-FT) BY 3 PM.

.TONIGHT...
SKY/WEATHER.........PARTLY CLOUDY (50 PERCENT) WITH ISOLATED
                    RAIN SHOWERS AND POSSIBLY A THUNDERSTORM THROUGH
                    9 PM. BECOMING MOSTLY CLOUDY (75+ PERCENT) WITH
                    WIDELY SCATTERED RAIN SHOWERS AFTER MIDNIGHT.
MIN TEMPERATURE.....35-40.
MAX HUMIDITY........65-70 PERCENT.
20 FOOT WINDS.......SOUTH 15-20 MPH...BECOMING SOUTHWEST AROUND
                    15 MPH BY AROUND 9 PM...THEN SWITCHING BETWEEN
                    3 AM AND 6 AM TO THE NORTHWEST OR NORTH. GUSTS
                    TO 30 MPH. GUSTY AND ERRATIC WINDS EXPECTED
                    NEAR THUNDERSTORMS IN THE EVENING.
RIDGE TOP WINDS.....SOUTH TO SOUTHWEST AROUND 20 MPH SHIFTING TO
                    THE NORTHWEST AROUND 15 MPH BY AROUND 3 AM.
LAL.................2 UNTIL 9 PM...THEN 1.
CHC OF WETTING RAIN.5 PERCENT.
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......DECREASING TO 2500 FT AGL BY AROUND 9 PM.
TRANSPORT WINDS.....SOUTH TO SOUTHWEST AROUND 20 MPH SHIFTING TO
                    THE NORTHWEST AROUND 15 MPH BY AROUND 3 AM.
SMOKE DISPERSAL.....FAIR (40000 KT-FT) MOST OF THE NIGHT.

.WEDNESDAY...
SKY/WEATHER.........MOSTLY CLOUDY (60-70 PERCENT). WIDELY SCATTERED
                    RAIN ANS SNOW SHOWERS. NO SNOW ACCUMULATION.
MAX TEMPERATURE.....50.
MIN HUMIDITY........25 PERCENT.
20 FOOT WINDS.......NORTH TO NORTHWEST AROUND 15 MPH...BECOMING
                    WEST TO NORTHWEST BY AROUND NOON. GUSTS UP TO
                    20 MPH.
RIDGE TOP WINDS.....WEST TO NORTHWEST 15-20 MPH.
LAL.................1.
CHC OF WETTING RAIN.5 PERCENT.
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......2500 FT AGL INCREASING TO 7500 FT AGL
                    IN THE AFTERNOON.
TRANSPORT WINDS.....WEST 20 TO 25 MPH.
SMOKE DISPERSAL.....INCREASING TO VERY GOOD (109500 KNOT-FT)
                    BY MIDDAY.

.FORECAST DAYS 3 THROUGH 5...

.WEDNESDAY NIGHT...MOSTLY CLOUDY WITH A SLIGHT CHANCE OF RAIN AND
SNOW SHOWERS. LOWS IN THE LOWER 30S. WEST WINDS AROUND 10 MPH.

.THURSDAY...MOSTLY CLOUDY. SLIGHT CHANCE OF RAIN AND SNOW
SHOWERS. HIGHS IN THE LOWER 50S. WEST WINDS AROUND 10 MPH.

.FRIDAY...MOSTLY CLOUDY. SLIGHT CHANCE OF SHOWERS. LOWS IN THE
UPPER 30S. HIGHS IN THE MID 50S. WINDS GENERALLY LESS THAN
10 MPH.

.SATURDAY...MOSTLY CLOUDY WITH CHANCE OF RAIN SHOWERS. A SLIGHT
CHANCE OF THUNDERSTORMS. LOWS IN THE MID 30S. HIGHS IN THE LOWER
60S. SOUTH WINDS 10-15 MPH.

$$

FORECASTER...MURRELL
REQUESTED BY...WENGERT
REASON FOR REQUEST...PRESCRIBED
.TAG 20140422.NORTH.01/RIW






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