Suppression Forecast
Issued by NWS Riverton, WY

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000
FNUS75 KRIW 262020
FWSRIW

SPOT FORECAST FOR BALD RIDGE...USFS SHF
NATIONAL WEATHER SERVICE RIVERTON WY
220 PM MDT THU MAR 26 2015

FORECAST IS BASED ON IGNITION TIME OF 1125 MDT ON MARCH 26.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...DRY CONDITIONS WILL CONTINUE FOR THE NEXT COUPLE DAYS
WITH BUILDING HIGH PRESSURE EXPECTED OVER THE FORECAST AREA. THIS
SYSTEM WILL PERMIT WARMING TEMPERATURES...WITH HUMIDITY DECREASING INTO THE
TEENS BY SATURDAY. AN APPROACHING WAVE OF LOW PRESSURE WILL ARRIVE
LATE FRIDAY AND INTO SATURDAY...BRINGING A WIND SHIFT ACROSS THE
AREA. SOME ISOLATED SHOWERS AND THUNDERSTORMS WILL BE POSSIBLE WITH
THIS SYSTEM. GUSTY AND ERRATIC WIND MAY ACCOMPANY ANY STORM ACTIVITY.
OTHERWISE...GUSTY TO BREEZY WINDS WILL ACCOMPANY THE SYSTEM ON
SATURDAY...AND WILL LIKELY COMBINE WITH THE LOWERED HUMIDITY TO INCREASE
FIRE POTENTIAL ACROSS THE BURN SITE. THIS SITUATION WILL CONTINUE
TO BE MONITORED.

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

FORECASTER...LIPSON

.FRIDAY...
SKY/WEATHER.........MOSTLY SUNNY (20-30 PERCENT).
MAX TEMPERATURE.....59-62.
MIN HUMIDITY........28-30 PERCENT.
20 FOOT WINDS.......WEST WINDS 13 TO 16 MPH WITH GUSTS TO OF 20 TO 30
                    MPH ON THE NORTHERN UNIT. ON THE SOUTHERN UNIT CLOSER
                    TO THE CLIFF BANDS WEST 10 TO 13 MPH WITH
                    A FEW GUSTS TO 26 MPH WITH WINDS OCCASIONALLY
                    VARIABLE AT 5 TO 10 MPH.
RIDGE TOP WINDS.....WEST 20 TO 25 MPH.
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......2700-3700 FT AGL.
TRANSPORT WINDS.....WEST 22 TO 25 MPH.
SMOKE DISPERSAL.....FAIR TO GOOD (59100-72900 KNOT-FT).

.FRIDAY NIGHT...
SKY/WEATHER.........CLEAR (0-10 PERCENT).
MIN TEMPERATURE.....AROUND 40.
MAX HUMIDITY........72-75 PERCENT.
20 FOOT WINDS.......WEST WINDS 15 TO 18 MPH WITH GUSTS OF 27 TO 33
                    MPH ON THE NORTHERN UNIT. ON THE SOUTHERN UNIT CLOSER
                    TO THE CLIFF BANDS WEST 10 TO 13 MPH WITH
                    A FEW GUSTS TO 26 MPH WITH WINDS OCCASIONALLY
                    VARIABLE AT 5 TO 10 MPH.

RIDGE TOP WINDS.....WEST AROUND 20 MPH ON THE EASTERN UNIT.
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......2600-3600 FT AGL.
TRANSPORT WINDS.....WEST 24 TO 31 MPH.
SMOKE DISPERSAL.....GOOD (63400-77800 KNOT-FT).

.SATURDAY...
SKY/WEATHER.........SUNNY (0-5 PERCENT) THEN BECOMING PARTLY CLOUDY
                    (35-45 PERCENT).
MAX TEMPERATURE.....61-64.
MIN HUMIDITY........21-24 PERCENT.
20 FOOT WINDS.......ON THE NORTHERN UNIT...WEST WINDS 17 TO 22 MPH.
                    GUSTS UP TO 30 MPH. AFTER 1200 WEST WINDS INCREASING
                    TO 22 TO 32 MPH WITH GUSTS TO 40 TO 50 MPH.
                    ON THE SOUTHERN UNIT NEAR THE CLIFF BANDS
                    WEST 10 TO 15 MPH WITH GUSTS TO 26 MPH BUT OCCASIONALLY
                    VARIABLE AT 5 TO 10 MPH. AFTER 1200 WEST 10 TO 20 MPH WITH
                    OCCASIONAL GUSTS OF 30 MPH
                    ALONG WITH WINDS OCCASIONALLY VARIABLE AT 5 TO 10 MPH.
                    EXPECT MORE VAIABILITY OF THE WIND DIRECTION AT LESSER
                    SPEEDS OF 8 TO 13 MPH ON BOTH UNITS AFTER 1600 BUT
                    PRIMARILY OUT OF THE WEST AT 10 TO 15 MPH ON THE
                    NORTHERN UNIT.
RIDGE TOP WINDS.....WEST 35 TO 45 MPH INCREASING TO AROUND 55 MPH
                    LATE IN THE AFTERNOON.
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......2800-3800 FT AGL INCREASING TO 5600-6600 FT AGL
                    IN THE AFTERNOON.
TRANSPORT WINDS.....WEST 45 MPH.
SMOKE DISPERSAL.....GOOD TO VERY GOOD (88900-123400 KNOT-FT).

.FORECAST DAYS 3 THROUGH 5...
.SATURDAY NIGHT...PARTLY CLOUDY. LOWS IN THE MID 30S. WINDS
GENERALLY LESS THAN 10 MPH.
.SUNDAY...MOSTLY CLEAR. LOWS IN THE MID 30S. HIGHS IN THE MID
50S. WINDS GENERALLY LESS THAN 10 MPH.
.MONDAY...MOSTLY CLEAR. LOWS IN THE UPPER 30S. HIGHS IN THE LOWER
60S. WINDS GENERALLY LESS THAN 10 MPH.
.TUESDAY...PARTLY CLOUDY WITH ISOLATED SHOWERS. LOWS IN THE MID
20S. HIGHS IN THE UPPER 50S. WINDS GENERALLY LESS THAN 10 MPH.

$$

FORECASTER...LIPSON
REQUESTED BY...MIKE WOODS
REASON FOR REQUEST...PRESCRIBED
.TAG 20150326.BALDR.01/RIW








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