Suppression Forecast
Issued by NWS Sacramento, CA

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000
FNUS76 KSTO 202036
FWSSTO

SPOT FORECAST for Willow Fire...STANISLAUS NF
National Weather Service SACRAMENTO CA
136 PM PDT Wed Sep 20 2017

Forecast is based on request time of 1000 PDT on September 20.
If conditions become unrepresentative...contact the National Weather
Service.

.DISCUSSION...
Light rain showers tonight turning to snow as snow levels drop
overnight. Not much will stick to ground tonight, but some may
stick Thursday morning. Strongest winds tonight and weaken
somewhat Thursday behind the cold front passage mid to late
morning Thursday. Stronger than usually NE downsloping (foehn)
winds will not begin until Friday night and continue through
Monday night, with westerly afternoon winds trying to counter
these downsloping winds.

.TONIGHT...

Sky/weather.........Rain showers likely from 2200-0400 with best chance
of snow late in this period.
(0.15 to 0.25 rain with light dusting of snow)
Min temperature.....34-37.
Max humidity........93-98 percent.
Wind (20 ft)........
 Slope/valley.......Southwest winds 9 to 12 mph. Gusts up to 20
                    mph in the evening.
 Ridgetop...........West-southwest 10 to 15 mph. Gusts to 25 mph.
Mixing height.......3200-4900 ft AGL decreasing to 2800-3200 ft AGL
                    after midnight.
Transport winds.....Southwest 23 mph.
CWR.................30 percent.
LAL.................1.

.THURSDAY...

Sky/weather.........Mostly cloudy with a chance of snow showers late in
the morning to early afternoon, before turning to a mix
in the afternoon. (Up to 1 inch of snow, before melting)
Max temperature.....37-40.
Min humidity........45-50 percent.
Wind (20 ft)........
 Slope/valley.......West winds 5 to 10 mph. Gusts to 15 mph.
 Ridgetop...........West-southwest 10 to 15 mph. Gusts to 20 mph.
Mixing height.......3000-3200 ft AGL increasing to 4700-5500 ft AGL
                    late in the morning.
Transport winds.....Southwest 15 mph.
CWR.................20 percent.
LAL.................1.

$$
Forecaster...JClapp
Requested by...Brian Lamphiear
Type of request...WILDFIRE
.TAG 1715980.2/STO
.EMAIL BJLamphiear@fs.fed.us



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