Suppression Forecast
Issued by NWS Riverton, WY

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000
FNUS75 KRIW 212129
FWSRIW

SPOT FORECAST FOR WOLF FIRE...GTP
NATIONAL WEATHER SERVICE RIVERTON WY
329 PM MDT FRI AUG 21 2015

FORECAST IS BASED ON REQUEST TIME OF 1431 MDT ON AUGUST 21.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

...RED FLAG WARNING IN EFFECT UNTIL 3 AM MDT SATURDAY...

.DISCUSSION...

ALMOST ALL OF THE ELEMENTS FOR A BAD FIRE WEATHER DAY WILL COME
TOGETHER FOR THE REST OF THIS AFTERNOON. RELATIVE HUMIDITY WILL BE
IN THE LOW TO MID TEENS THIS AFTERNOON. 20 TO 30 MPH WEST TO SOUTHWEST
WINDS...WITH GUSTS TO 40 MPH POSSIBLE LATER THIS EVENING...ALONG
WITH HIGH TEMPERATURES NEAR 80 DEGREES...WILL CERTAINLY BRING AN
ELEVATED FIRE DANGER. THERE WILL ALSO BE A DRY COLD FRONT THAT WILL
LEAD TO A SUDDEN WIND SHIFT AND COULD KICK OFF ISOLATED DRY THUNDERSTORMS
TO THE NORTH OF THE FIRE OVER YELLOWSTONE PARK. THE FRONT SHOULD
REACH THE NORTHWESTERN CORNER OF WYOMING LATER THIS AFTERNOON AND
WILL MOVE SOUTHEAST ACROSS THE FIRE AREA THROUGH MIDNIGHT.

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

FORECASTER...LIPSON

.REST OF TODAY...

SKY/WEATHER.........PARTLY CLOUDY (20-30 PERCENT). SMOKE. VISIBILITY
                    MAINLY ABOVE 6 MILES. A FEW MID CLOUDS.
TEMPERATURE........ 80
MIN HUMIDITY........13-15 PERCENT.
20 FOOT WINDS.......WEST SOUTHWEST WINDS 10 TO 20 MPH WITH GUSTS TO
                    AROUND 30 MPH. AFTER 1800 WEST 15 TO 30 MPH ALONG WITH A
                    FEW GUSTS OF 35 TO 40 MPH.
RIDGE TOP WINDS.....SOUTHWEST AROUND 30 MPH.
LAL.................1.
CHC OF WETTING RAIN.ZERO PERCENT.
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED
                    FIRE GROWTH.
MIXING HEIGHT.......10800 FT AGL.
TRANSPORT WINDS.....WEST AROUND 37 MPH.
SMOKE DISPERSAL.....EXCELLENT (310900 KNOT-FT) BUT STILL SMOKY.

.TONIGHT...

SKY/WEATHER.........PARTLY CLOUDY (35-45 PERCENT). SMOKE IN THE
                    EVENING...THEN AREAS OF SMOKE AFTER MIDNIGHT.
MIN TEMPERATURE.....39-42.
MAX HUMIDITY........73-76 PERCENT.
20 FOOT WINDS.......SOUTHWEST WINDS 10 TO 21 MPH WITH GUSTS TO
                    AROUND 40 MPH IN THE EVENING BECOMING
                    NORTH NORTHWEST 8 TO 11 MPH.
RIDGE TOP WINDS.....SOUTHWEST 20 TO 25 MPH DECREASING TO AROUND 15
                    MPH AFTER MIDNIGHT...THEN SHIFTING TO THE
                    NORTHWEST EARLY IN THE MORNING.
LAL.................1.
CHC OF WETTING RAIN.ZERO PERCENT.
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED
                    FIRE GROWTH.
MIXING HEIGHT.......5400-6400 FT AGL DECREASING TO 1000 FT AGL
                    AFTER MIDNIGHT.
TRANSPORT WINDS.....SOUTHWEST 24 TO 30 MPH DECREASING TO AROUND 16
                    MPH AFTER MIDNIGHT...THEN SHIFTING TO THE
                    NORTHWEST AROUND 14 MPH EARLY IN THE MORNING.
SMOKE DISPERSAL.....EXCELLENT (163700 KNOT-FT) DECREASING TO POOR
                    (14000 KNOT-FT) AFTER MIDNIGHT.

.SATURDAY...

SKY/WEATHER.........MOSTLY SUNNY (15-25 PERCENT). SMOKE.
MAX TEMPERATURE.....65-68.
MIN HUMIDITY........16-18 PERCENT.
20 FOOT WINDS.......NORTH NORTHWEST 9 TO 12 MPH. GUSTS UP TO 15 MPH
                    FROM 1000 TO 1600. AFTER 1600 WEST NORTHWEST 4 TO 8 MPH.
RIDGE TOP WINDS.....NORTHWEST 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.......2500-3500 FT AGL INCREASING TO 5500-6500 FT AGL
                    IN THE AFTERNOON.
TRANSPORT WINDS.....NORTHWEST 14 TO 17 MPH.
SMOKE DISPERSAL.....POOR TO GOOD (39200-76200 KNOT-FT).

.FORECAST DAYS 3 THROUGH 5...
.SATURDAY NIGHT...
MOSTLY CLEAR. SMOKE. LOWS IN THE MID 30S. WINDS GENERALLY LESS
THAN 10 MPH.
.SUNDAY...
CLEAR. AREAS OF SMOKE. LOWS IN THE MID 30S. HIGHS IN THE MID 70S.
WINDS GENERALLY LESS THAN 10 MPH.
.MONDAY...
PARTLY CLOUDY. LOWS IN THE LOWER 40S. HIGHS IN THE UPPER 70S.
WINDS GENERALLY LESS THAN 10 MPH.
.TUESDAY...
PARTLY CLOUDY. LOWS IN THE MID 40S. HIGHS IN THE LOWER 80S. WINDS
GENERALLY LESS THAN 10 MPH.

$$
FORECASTER...LIPSON
REQUESTED BY...RON STEFFENS
TYPE OF REQUEST...WILDFIRE
.TAG 20150821.WOLFF.01/RIW



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