Suppression Forecast
Issued by NWS Sacramento, CA

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000
FNUS76 KSTO 220331
FWSSTO

SPOT FORECAST for Silverthorn...USFS
National Weather Service SACRAMENTO CA
731 PM PST Tue Feb 21 2017

Forecast is based on ignition time of 0000 PST on February 22.
If conditions become unrepresentative...contact the National Weather
Service.

.DISCUSSION...
A trough of low pressure will continue unsettled weather over the
region on Wednesday. The spot location will have a slight chance
for some afternoon showers or an isolated thunderstorm. Mostly Dry
weather is expected for Thursday for the location but a stray
snow shower will be possible.

.WEDNESDAY...

Sky/weather.........Mostly cloudy with a chance of rain showers,
                    snow showers and a slight chance of
                    thunderstorms.
CWR.................30 percent.
Max temperature.....48-53.
Min humidity........57-62 percent.
Wind (20 ft)........
 Slope/valley.......South winds up to 7 mph. Gusty and erratic
                    winds expected near thunderstorms.
 Ridgetop...........South 7 mph.
Mixing height.......2100-3200 ft AGL increasing to 4300-4800 ft AGL
                    in the afternoon.
Transport winds.....South 7 mph.

.WEDNESDAY NIGHT...

Sky/weather.........Mostly cloudy with a chance of rain showers,
                    snow showers and a slight chance of
                    thunderstorms early in the evening, then partly
                    cloudy with a chance of snow showers after
                    midnight.
CWR.................15 percent.
Min temperature.....35-40.
Max humidity........82-87 percent.
Wind (20 ft)........
 Slope/valley.......North winds up to 6 mph. Gusty and erratic
                    winds expected near thunderstorms in the
                    evening.
 Ridgetop...........Light winds.
Mixing height.......2600-4300 ft AGL decreasing to 1000-1300 ft AGL
                    in the late evening and overnight.
Transport winds.....Light winds.

.THURSDAY...

Sky/weather.........Mostly cloudy in the morning then becoming
                    partly cloudy. A slight chance of snow showers.
CWR.................5 percent.
Max temperature.....49-54.
Min humidity........41-46 percent.
Wind (20 ft)........
 Slope/valley.......Variable less than 5 mph.
 Ridgetop...........Light winds.
Mixing height.......1300 ft AGL increasing to 4500 ft AGL late in
                    the morning, then increasing to 7300 ft AGL
                    early in the afternoon decreasing to 5300 ft
                    AGL late in the afternoon.
Transport winds.....Light winds.

$$
Forecaster...RB
Requested by...Ryan Means
Type of request...PRESCRIBED
.TAG 1702569.0/STO
.EMAIL rmeans@fs.fed.us



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