Suppression Forecast
Issued by NWS Spokane, WA

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FNUS76 KOTX 281322
FWSOTX

Spot Forecast for Forest Johnson Unit 8...USFS
National Weather Service Spokane WA
622 AM PDT Fri Apr 28 2017

Forecast is based on ignition time of 0800 PDT on April 28.
If conditions become unrepresentative...contact the National Weather
Service.

.DISCUSSION...

Seasonal temperatures through the weekend with light and terrain
driven winds today and Saturday. Better mixing today under sunny
skies compared to Saturday. A cold front will push across the
burn project Sunday morning. Clouds will increase ahead of the
front with sprinkles possible Saturday and Saturday night. Winds
will be gusty on Sunday behind the front. Another cold front will
keep conditions cool and breezy for Monday. Then a warming and
drying trend for the middle portion of next week under a ridge.

***************************************************************
FORECASTS FOR 20 FOOT WIND SPEEDS (VALLEYS AND RIDGE TOPS) ARE
10 MINUTE AVERAGES REFLECTING RAWS WIND.
***************************************************************

.TODAY...

Sky/weather.........Mostly sunny.
CWR.................1 percent.
LAL.................1.
Max temperature.....58.
Min humidity........30 percent.
Wind (20 ft)........Northwest winds 3 to 5 mph in the morning...
                    switching south-southeast winds 4 to 7 mph
                    after 0900.
Mixing height.......becoming 2300 ft AGL after 1100.
Transport winds.....West 5 to 8 mph.
Haines Index........3 very low.

.TONIGHT...

Sky/weather.........Mostly clear. Increasing cirrus clouds.
CWR.................0 percent.
LAL.................1.
Min temperature.....34.
Max humidity........74 percent.
Wind (20 ft)........south-southeast winds 4 to 7 mph in the
                    evening...switching Northwest winds 3 to 5 mph
                    after 2000.
Mixing height.......Near surface.
Transport winds.....Northwest 3 to 5 mph.
Haines Index........4 low.

.SATURDAY...

Sky/weather.........Increasing clouds in the morning...then overcast
                    with a chance of sprinkles in the afternoon.
CWR.................1 percent.
LAL.................1.
Max temperature.....56.
Min humidity........34 percent.
Wind (20 ft)........South-southeast 5 to 9 mph.
Mixing height.......becoming 1500 ft AGL in the afternoon.
Transport winds.....South-southwest 5 to 9 mph.
Haines Index........4 low.

$$
Forecaster...SVH
Requested by...Ian Morgan
Type of request...PRESCRIBED
.TAG 1707915.0/OTX



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