Suppression Forecast
Issued by NWS Great Falls, MT

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FNUS75 KTFX 201131
FWSTFX

Spot Forecast for Ford Creek Rx...USFS
National Weather Service Great Falls MT
531 AM MDT Fri Apr 20 2018

Forecast is based on ignition time of 0800 MDT on April 20.
If conditions become unrepresentative...contact the National Weather
Service.

.DISCUSSION...

High pressure provides clear skies and light winds over the burn area
today. Morning frost gives way to a mild afternoon with moderately low
relative humidity. Upslope flow will likely influence the daytime winds
considering the southerly aspect of the burn area.  A mainly dry cold
front will bring marginal RH values and strong gusty winds to the burn
area on Saturday. Winds will diminish while RH increases on Sunday.
Monday may see increased moisture to the area...and perhaps some snow.


.REST OF TODAY...

Sky/weather.........Sunny.
CWR.................0 percent.
LAL.................1.
Max temperature.....56-61.
Min humidity........22-27 percent.
Wind (20 ft)........West winds around 5 mph
 Slope/valley.......West winds around 5 to 10 mph.
Mixing height.......500 ft AGL increasing to 6000 ft AGL in the
                    afternoon.
Transport winds.....West around 5 mph.
Haines index........2 very low.

.TONIGHT...

Sky/weather.........Mostly clear.
CWR.................0 percent.
LAL.................1.
Min temperature.....32-37.
Max humidity........80-85 percent.
Wind (20 ft)........Southwest winds 5 to 10 mph.
 Slope/valley.......Southwest winds 5 to 10 mph.
Mixing height.......6000 ft AGL decreasing to 500 ft AGL after
                    midnight.
Transport winds.....Southwest around 5 mph.
Haines index........2 very low.

.SATURDAY...

Sky/weather.........Mostly sunny.
CWR.................0 percent.
LAL.................1.
Max temperature.....51-56.
Min humidity........31-36 percent.
Wind (20 ft)........West winds 10 to 20 mph. Gusts up to 30 mph
                    increasing to 45 mph in the afternoon.
Mixing height.......500 ft AGL increasing to 4500 ft AGL in the
                    afternoon.
Transport winds.....Southwest around 30 mph.
Haines index........2 very low.

$$
Forecaster...Nutter
Requested by...Shelby Majors
Type of request...PRESCRIBED
.TAG 1806900.2/TFX
.EMAIL smajors@fs.fed.us



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