Suppression Forecast
Issued by NWS Grand Junction, CO

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000
FNUS75 KGJT 230447
FWSGJT

Spot Forecast for Johnson Creek...State of Utah
National Weather Service Grand Junction CO
947 PM MST Thu Feb 22 2018

Forecast is based on ignition time of 0900 MST on February 23.
If conditions become unrepresentative...contact the National Weather
Service.

.DISCUSSION...
An approaching cold front will cause some gusty southwest winds
today reaching 25 MPH at times. These gusty winds bring deep
mixing allowing the clearing index to reach over 1000. Numerous
snow and snow showers will occur ahead of the front. The best
chance for any precipitation will be as the front moves through
which will be near 6PM this evening. By Saturday morning, all
precipitation will be over as clouds decrease. Clearing index will
reach 900 in the afternoon from 3PM through 5PM before dropping
back down.

.FRIDAY...

Sky/weather.........Cloudy (90-100%).  Snow and snow showers with
                    blowing snow at times.
Max temperature.....27-32 F.
Min humidity........55-60%.
Wind (20 ft)........Southwest winds 10 to 15 MPH with gusts up to
                    25 mph.
Mixing height.......9200 ft AGL.
Clearing Index......1050.

.FRIDAY NIGHT...

Sky/weather.........Mostly cloudy (80-90%). Patchy blowing snow in
                    the evening. Numerous snow showers.
Min temperature.....4-9 F.
Max humidity........87-92%.
Wind (20 ft)........Northwest winds 5 to 10 MPH with occasional
                    gusts to 15 MPH after midnight.
Mixing height.......5100 ft AGL decreasing to 2100 ft AGL after
                    midnight.
Clearing Index......810 decreasing to 420 after midnight.

.SATURDAY...

Sky/weather.........Partly cloudy (50-60%), then becoming mostly
                    sunny (20-30%).
Max temperature.....27-32 F.
Min humidity........32-37%.
Wind (20 ft)........Northwest winds 5 MPH becoming southwest in
                    the afternoon.
Mixing height.......5600 ft AGL.
Clearing Index......580 increasing to 900 after 3PM.

$$
Forecaster...Tom Renwick
Requested by...San Juan County Fire Warden
Type of request...PRESCRIBED
.TAG 1802399.0/GJT
.EMAIL heberheyder@utah.gov


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