Suppression Forecast
Issued by NWS Grand Junction, CO

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284
FNUS75 KGJT 261521
FWSGJT

SPOT FORECAST FOR SHEEP GULCH RX...USFS
NATIONAL WEATHER SERVICE GRAND JUNCTION CO
921 AM MDT MON SEP 26 2016

FORECAST IS BASED ON IGNITION TIME OF 1000 MDT ON SEPTEMBER 27.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...
HIGH PRESSURE OVERHEAD HAS CAUSED A SUBSIDENCE INVERSION TO FORM
AND WITH LIGHT WINDS...SMOKE DISPERSAL WILL BE POOR ON TUESDAY. ON
WEDNESDAY AN APPROACHING AREA OF LOW PRESSURE WILL BREAK DOWN THE
INVERSION AND ALLOW GOOD SMOKE DISPERSAL IN THE AFTERNOON THOUGH
WINDS WILL STILL BE RELATIVELY LIGHT. BY THURSDAY...THE LOW
PRESSURE WILL BECOME AN OPEN WAVE AS IT MOVES OVER THE AREA
BRINGING SOME ISOLATED SHOWERS...MAYBE A THUNDERSTORM...NEAR THE
BURN SITE. UNSETTLED WEATHER CONTINUES INTO FRIDAY WHICH LOOKS TO
BE THE BEST DAY FOR ANY PRECIPITATION OVER THE BURN SITE FROM
ABOUT NOON ONWARDS. SOME VERY ISOLATED SHOWERS ARE POSSIBLE
SATURDAY AND SUNDAY BUT SHOULD NOT AFFECT THE BURN SITE.

.TODAY...

SKY/WEATHER.........SUNNY (0-10%).
MAX TEMPERATURE.....72-77 F.
MIN HUMIDITY........14-19%.
20-FOOT WINDS.......NORTH WINDS 5 MPH.
SMOKE DISPERSAL.....POOR (31200 KNOT-FT).
HAINES INDEX........2 VERY LOW.
LAL.................1.
MIXING HEIGHT.......2400 FT AGL INCREASING TO 8800 FT AGL LATE IN
                    THE MORNING.
TRANSPORT WINDS.....NORTHWEST 5 MPH.

.TONIGHT...

SKY/WEATHER.........CLEAR (0-10%).
MIN TEMPERATURE.....34-39 F.
MAX HUMIDITY........74-79%.
20-FOOT WINDS.......WEST WINDS 5 MPH SHIFTING TO THE EAST AFTER
                    MIDNIGHT.
SMOKE DISPERSAL.....POOR (8000 KNOT-FT).
HAINES INDEX........3 VERY LOW.
LAL.................1.
MIXING HEIGHT.......8300 FT AGL DECREASING TO 1200 FT AGL.
TRANSPORT WINDS.....NORTH 5 MPH.

.WEDNESDAY...

SKY/WEATHER.........MOSTLY SUNNY (10-20%) THEN BECOMING PARTLY
                    CLOUDY (30-40%).
MAX TEMPERATURE.....71-76 F.
MIN HUMIDITY........15-20%.
20-FOOT WINDS.......EAST WINDS 5 MPH SHIFTING TO THE SOUTHWEST
                    6 TO 10 MPH IN THE AFTERNOON.
SMOKE DISPERSAL.....POOR (16400 KNOT-FT) INCREASING TO GOOD (93000
                    KNOT-FT) AFTER 12PM.
HAINES INDEX........3 VERY LOW.
LAL.................1.
MIXING HEIGHT.......1300 FT AGL INCREASING TO 11900 FT AGL.
TRANSPORT WINDS.....SOUTHEAST 5 MPH.

$$
FORECASTER...TOM RENWICK
REQUESTED BY...RYAN HUGHES
TYPE OF REQUEST...PRESCRIBED
.TAG 20160927.SHEEP.01/GJT



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