Suppression Forecast
Issued by NWS Riverton, WY

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FNUS75 KRIW 041655
FWSRIW

SPOT FORECAST FOR S COTTONWOOD RX...USFS BTF
NATIONAL WEATHER SERVICE RIVERTON WY
1055 AM MDT WED MAY 4 2016

FORECAST IS BASED ON IGNITION TIME OF 1120 MDT ON MAY 04.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...
A RIDGE OF HIGH PRESSURE WILL KEEP CONDITIONS WARM AND DRY TODAY.
WIDELY SCATTERED SHOWERS AND AN ISOLATED THUNDERSTORM ARE POSSIBLE
LATE THURSDAY AFTERNOON AS MOISTURE SPREADS NORTH AHEAD OF AN
INCOMING LOW PRESSURE SYSTEM. GUSTY OUTFLOW WIND WILL BE THE MAIN
HAZARD WITH THE SHOWERS AND STORMS AS LITTLE RAIN WILL MAKE IT TO
THE GROUND. SOUTHWEST WIND WILL INCREASE THURSDAY AFTERNOON AS THIS
LOW PRESSURE SYSTEM APPROACHES.

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

FORECASTER...JONES

.TODAY...

SKY/WEATHER.........MOSTLY SUNNY (20-30 PERCENT).
MAX TEMPERATURE.....65-68.
MIN HUMIDITY........21-24 PERCENT.
20 FOOT WINDS.......UPSLOPE/UPVALLEY 3 TO 7 MPH...BECOMING
                    SOUTHWEST 10 TO 15 MPH BETWEEN 1230L AND 1430L.
RIDGE TOP WINDS.....SOUTH 10 TO 15 MPH.
LAL.................1.
CHC OF WETTING RAIN.ZERO PERCENT.
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......GRADUALLY INCREASING TO 7000 FT AGL BY 1500L.
TRANSPORT WINDS.....SOUTH 10 TO 15 MPH.
SMOKE DISPERSAL.....INCREASING TO GOOD BY 1400L.

.TONIGHT...

SKY/WEATHER.........PARTLY CLOUDY (35-45 PERCENT).
MIN TEMPERATURE.....30-34.
MAX HUMIDITY........69-73 PERCENT.
20 FOOT WINDS.......SOUTH-SOUTHWEST WIND 10 TO 15 MPH UNTIL
                    1900L...THEN BECOMING DOWNSLOPE/DOWNVALLEY
                    4 TO 7 MPH BY 2100L.
RIDGE TOP WINDS.....SOUTH-SOUTHWEST AROUND 10 MPH.
LAL.................1.
CHC OF WETTING RAIN.ZERO PERCENT.
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......AROUND 6000 FT AGL UNTIL 1900L...THEN
                    DECREASING TO LESS THAN 1000 FT AGL BY 2200L.
TRANSPORT WINDS.....SOUTH-SOUTHWEST AROUND 10 MPH.
SMOKE DISPERSAL.....GOOD UNTIL 1900L...THEN BECOMING POOR BY 2100L.

.THURSDAY...

SKY/WEATHER.........PARTLY CLOUDY (35-45 PERCENT) UNTIL 1100L...
                    THEN BECOMING MOSTLY CLOUDY (60-70 PERCENT) BY
                    1400L. WIDELY SCATTERED RAIN SHOWERS AFTER 1400L
                    ALONG WITH AN ISOLATED THUNDERSTORM.
MAX TEMPERATURE.....66-69.
MIN HUMIDITY........20-24 PERCENT.
20 FOOT WINDS.......SOUTH-SOUTHEAST 5 TO 9 MPH UNTIL 1100L...THEN
                    GRADUALLY BECOMING SOUTH 12 TO 15 MPH BY 1400L.
                    OCCASIONAL GUSTS TO 20 MPH AFTER 1400L. GUSTY
                    AND ERRATIC WINDS EXPECTED NEAR THUNDERSTORMS.
RIDGE TOP WINDS.....SOUTH 10 TO 15 MPH.
LAL.................1 UNTIL 1400...THEN LAL 2.
CHC OF WETTING RAIN.5 PERCENT.
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......LESS THAN 2000 FT AGL UNTIL 0900L...THEN
                    GRADUALLY INCREASING TO AROUND 7000 FT AGL
                    BY 1400L.
TRANSPORT WINDS.....SOUTH 12 TO 16 MPH.
SMOKE DISPERSAL.....POOR UNTIL 0900L...THEN GRADUALLY INCREASING TO
                    VERY GOOD BY 1400L.

.FORECAST DAYS 3 THROUGH 5...
.THURSDAY NIGHT...
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS AND ISOLATED THUNDERSTORMS IN
THE EVENING...THEN A CHANCE OF RAIN AND SNOW SHOWERS AFTER
MIDNIGHT. LOWS IN THE MID 30S. WINDS GENERALLY LESS THAN 10 MPH.
.FRIDAY...
SHOWERS LIKELY WITH A SLIGHT CHANCE OF THUNDERSTORMS. SOME STORMS
COULD BE STRONG IN THE AFTERNOON. LOWS IN THE MID 30S. HIGHS NEAR 60.
WINDS GENERALLY LESS THAN 10 MPH...EXCEPT NEAR THUNDERSTORMS.
.SATURDAY...
COOLER. CLOUDY WITH SHOWERS LIKELY...POSSIBLY MIXED WITH SNOW AT TIMES.
LOWS IN THE UPPER 30S. HIGHS AROUND 50. WINDS GENERALLY LESS THAN 10 MPH.
.SUNDAY...
MOSTLY CLOUDY WITH A CHANCE OF RAIN AND SNOW SHOWERS. LOWS IN
THE LOWER 30S. HIGHS AROUND 50. WINDS GENERALLY LESS THAN 10 MPH.

$$
FORECASTER...JONES
REQUESTED BY...MIKE
TYPE OF REQUEST...PRESCRIBED
.TAG 20160504.SCOTT.01/RIW



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