Suppression Forecast
Issued by NWS Great Falls, MT

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FNUS75 KTFX 240535
FWSTFX

Spot Forecast for Dearborn Fire...DNRC
National Weather Service Great Falls MT
1135 PM MDT Fri Sep 23 2022

Forecast is based on forecast start time of 2300 MDT on September 23.
If conditions become unrepresentative...contact the National Weather
Service.

.DISCUSSION...
A strong westerly flow aloft will move clouds and possibly a few showers
over the fire area until 0200 MDT or so, then clouds should start to
decrease toward morning. The flow aloft will decrease during the day on
Saturday as high pressure builds in from the west, allowing skies to
become mostly clear but with some lingering westerly winds. The high
pressure will otherwise keep the area dry with light winds at least
through the weekend. Daytime relative humidity should stay above 25
percent with moderate overnight recovery.

.REST OF TONIGHT...

Sky/weather.........Mostly cloudy (55-65 percent) with a slight chance
                    of rain showers until 0200 MDT, then becoming
                    partly cloudy (40-50 percent).
CWR.................0 percent.
LAL.................1.
Min temperature.....47-52.
Max humidity........55-60 percent.
Wind (20 ft)........
 Slope/valley.......Southwest winds around 10 mph.
 Ridgetop...........West around 40 mph.
Haines Index........

.SATURDAY...

Sky/weather.........Mostly sunny (25-35 percent).
CWR.................0 percent.
LAL.................1.
Max temperature.....66-71.
Min humidity........26-31 percent.
Wind (20 ft)........
 Slope/valley.......Southwest winds 5 to 10 mph shifting to the
                    west 10 to 15 mph in the afternoon.
 Ridgetop...........West around 30 mph.
Haines Index........2 or very low potential for large plume
                    dominated fire growth.

.SATURDAY NIGHT...

Sky/weather.........Partly cloudy (20-30 percent).
CWR.................0 percent.
LAL.................1.
Min temperature.....43-48.
Max humidity........62-67 percent.
Wind (20 ft)........
 Slope/valley.......Northwest winds 5 to 10 mph shifting to the
                    southwest overnight.
 Ridgetop...........West around 15 mph.
Haines Index........

.SUNDAY...

Sky/weather.........Sunny (10-20 percent).
CWR.................0 percent.
LAL.................1.
Max temperature.....71-76.
Min humidity........25-30 percent.
Wind (20 ft)........
 Slope/valley.......South winds 5 to 10 mph.
 Ridgetop...........West around 10 mph.
Haines Index........3 or very low potential for large plume
                    dominated fire growth.

$$
Forecaster...Coulston
Requested by...Rocky Infanger
Type of request...WILDFIRE
.TAG 2218558.0/TFX
.DELDT 09/23/22
.FormatterVersion 2.0.0
.EMAIL wolfcreekchief@hotmail.com, tfx.ops@noaa.gov


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