Suppression Forecast
Issued by NWS Great Falls, MT

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000
FNUS75 KTFX 192358
FWSTFX

Spot Forecast for Iron mask...Blm
National Weather Service Great Falls MT
558 PM MDT Thu Apr 19 2018

Forecast is based on ignition time of 1800 MDT on April 19.
If conditions become unrepresentative...contact the National Weather
Service.

.DISCUSSION...

Cumulus cloud-cover through early this evening will dissipate
after sunset with winds remaining light from the east and good
overnight humidity recovery. Slightly warmer and drier conditions
are expected Friday with continued light winds and mainly clear
skies. A cold front will approach the region Saturday with winds
increasing from the southwest and likely shifting to the west or
northwest late Saturday afternoon and evening.

.TONIGHT...

Sky/weather.........Partly cloudy.
CWR.................0 percent.
Min temperature.....32-37.
Max humidity........77-82 percent.
Wind (20 ft)........
 Slope/valley.......East winds around 5 mph.

.FRIDAY...

Sky/weather.........Sunny.
CWR.................0 percent.
LAL.................1.
Max temperature.....57-62.
Min humidity........24-29 percent.
Wind (20 ft)........
 Slope/valley.......North winds around 5 mph.
Mixing height.......Increasing to 5500 ft AGL in the
                    afternoon.
Transport winds.....North around 10 mph.
Haines index........2 very low.

.FRIDAY NIGHT...

Sky/weather.........Mostly clear.
CWR.................0 percent.
Min temperature.....34-39.
Max humidity........67-72 percent.
Wind (20 ft)........
 Slope/valley.......Northwest winds around 5 mph shifting to the
                    southwest after midnight.

.SATURDAY...

Sky/weather.........Partly cloudy.
CWR.................0 percent.
LAL.................1.
Max temperature.....58-63.
Min humidity........24-29 percent.
Wind (20 ft)........
 Slope/valley.......Southwest winds 10 to 15 mph with gusts to around 30 mph
                    in the afternoon.
Mixing height.......Increasing to 6000 ft AGL in the
                    afternoon.

$$
Forecaster...Hoenisch
Requested by...Greg campbell
Type of request...PRESCRIBED
.TAG 1807124.0/TFX
.EMAIL Gcampbel@blm.gov



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