Suppression Forecast
Issued by NWS Grand Junction, CO

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FNUS75 KGJT 201607
FWSGJT

Spot Forecast for Johnson Creek...State of Utah
National Weather Service Grand Junction CO
907 AM MST Tue Feb 20 2018

Forecast is based on ignition time of 0900 MST on February 20.
If conditions become unrepresentative...contact the National Weather
Service.

.DISCUSSION...
The upper level wind gradient will begin to lax today behind the
passage of yesterday`s cold front, though sufficient mixing will
still occur during the afternoon hours today and Wednesday
resulting in good smoke dispersal. Temperatures will be at least
10 degrees cooler today before gradually moderating on Wednesday.
Southwesterly winds will increase late Wednesday as the next
Pacific trough moves into the Great Basin.

.REST OF TODAY...

Sky/weather.........Mostly cloudy (60-70%).
Max temperature.....25-30 F.
Min humidity........27-32%.
Wind (20 ft)........West winds 8 to 10 MPH. Gusts up to 20 mph in
                    the afternoon.
Mixing height.......Rising to 9200 ft AGL.
Clearing Index......Increasing to 830.

.TONIGHT...

Sky/weather.........Mostly clear (20-30%) after midnight.
Min temperature.....8-13 F.
Max humidity........57-62%.
Wind (20 ft)........East winds 3 to 5 MPH.
Mixing height.......Lowering to 1200 ft AGL after midnight.
Clearing Index......Decreasing to 100.

.WEDNESDAY...

Sky/weather.........Mostly sunny (20-30%), then becoming mostly
                    cloudy (60-70%) around 1300.
Max temperature.....31-36 F.
Min humidity........27-32%.
Wind (20 ft)........Southeast winds 10 to 12 MPH, becoming south
                    with gusts up to 25 mph in the afternoon.
Mixing height.......Rising to 6500 ft AGL around 1400.
Clearing Index......Increasing to 1020.

$$
Forecaster...Megan Stackhouse
Requested by...San Juan County Fire Warden
Type of request...PRESCRIBED
.TAG 1802207.0/GJT
.EMAIL heberheyder@utah.gov



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