Suppression Forecast
Issued by NWS Great Falls, MT

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FNUS75 KTFX 242128
FWSTFX

Spot Forecast for Helmville RX...USDA Forest Service
National Weather Service Great Falls MT
328 PM MDT Tue Apr 24 2018

Forecast is based on ignition time of 0900 MDT on April 25.
If conditions become unrepresentative...contact the National Weather
Service.

.DISCUSSION...

Clear and dry conditions will remain through tonight. Wednesday will
remain clear and dry until the passage of a weak and mainly dry cold front.
This will bring a north to northeasterly wind shift sometime in the late
afternoon or early evening hours. An isolated shower is also possible with
the passage of this front. High pressure then builds into the area for
Thursday...brining mainly clear skies...drying conditions...and light winds.
Min RH values on Thursday could dip into the teens and 20s.

.WEDNESDAY...

Sky/weather.........Mostly sunny with a few afternoon clouds.
CWR.................5 percent or less.
Max temperature.....62-67.
Min humidity........26-31 percent.
Wind (20 ft)........West southwest winds 5 to 10 mph with gusts near 15 mph
                    in the afternoon.
 Slope/valley.......West southwest winds 5 to 10 mph with gusts near 15 mph
                    in the afternoon.
Mixing height.......0 ft AGL increasing to 7500 ft AGL in the
                    afternoon.
Transport winds.....West around 10 to 15 mph.

.WEDNESDAY NIGHT...

Sky/weather.........Partly cloudy. Slight chance of rain in the
                    evening.
CWR.................5 percent to less.
Min temperature.....28-33.
Max humidity........74-79 percent.
Wind (20 ft)........Becoming north northeast at 5 to 15 MPH after 6 PM.
 Slope/valley.......Becoming north northeast at 5 to 15 mph after 6 PM.
Mixing height.......7500 ft AGL decreasing to 0 ft AGL after
                    midnight.
Transport winds.....North around 10 to 15 mph.

.THURSDAY...

Sky/weather.........Sunny.
CWR.................0 percent.
Max temperature.....67-72.
Min humidity........17-22 percent.
Wind (20 ft)........East winds around 5 to 10 mph.
 Slope/valley.......East winds around 5 to 10 mph.
Mixing height.......0 ft AGL increasing to 5500 ft AGL in the
                    afternoon.
Transport winds.....Southeast around 5 to 10 mph.

$$
Forecaster...Anglin
Requested by...William Schroeder
Type of request...PRESCRIBED
.TAG 1807684.0/TFX
.EMAIL wschroeder@fs.fed.us



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