Suppression Forecast
Issued by NWS Spokane, WA

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FNUS76 KOTX 250024
FWSOTX

Spot Forecast for Simmons Rx...USFS
National Weather Service Spokane WA
524 PM PDT Sat Sep 24 2022

Forecast is based on ignition time of 1700 PDT on September 24.
If conditions become unrepresentative...contact the National Weather
Service.

.DISCUSSION...

A ridge of high pressure building in over the region will promote a
warming and drying trend through the weekend into early next week.
Winds will light from the southeast overnight and switching westerly
with diurnal heating. The ridge looks to break down around the
middle of next week a dry cold front passage.

.THIS EVENING...

Sky/weather.........Sunny.
CWR.................0 percent.
LAL.................1.
Max temperature.....Valley Bottom (4000 feet)...65-67 between
                    1700-1900 PDT.
                    Ridge Tops (6500 feet)...53-55 between
                    1700-1900 PDT.
Min humidity........Valley Bottom (4000 feet)...43 percent
                    between 1700-1900 PDT.
                    Ridge Tops (6500 feet)...65 percent
                    between 1700-1900 PDT.
Wind (20 ft)........Valley Bottom and Mid Slope...Upvalley/Upslope
                    winds 2 to 5 mph through 1900 PDT then switching
                    downslope/downvalley afterward.
                    Ridge tops...West winds 5 to 8 mph through
                    1900 PDT then switching southeast 4 to 6 mph
                    afterward.
Mixing height.......3000 ft AGL.
Transport winds.....West around 7 mph.
Haines Index........2 Very Low.

.TONIGHT...

Sky/weather.........Partly cloudy.
CWR.................0 percent.
LAL.................1.
Min temperature.....46-49.
Max humidity........63-69 percent.
Wind (20 ft)........Valley Bottom and Mid Slopes...Downvalley-
                    Downslope 2 to 4 mph.
                    Ridge Tops...Southeast 4 to 6 mph.
Mixing height.......500 ft AGL.
Transport winds.....Southeast around 5 mph.
Haines Index........2 Very Low.

.SUNDAY...

Sky/weather.........Mostly sunny. A few high thin clouds.
CWR.................0 percent.
LAL.................1.
Max temperature.....Valley Bottom (4000 feet)...78.
                    Ridge Tops (6500 feet)...65.
Min humidity........28-36 percent.
Wind (20 ft)........Valley Bottom and Mid Slope...Downslope-
                    Downvalley winds 2 to 4 mph early in the
                    morning switching upslope/upvalley 3 to
                    6 mph after 0900.
                    Ridge tops...Southeast winds 4 to 6 mph
                    early in the morning switching southwest
                    6 to 10 mph after 1000 PDT.
Mixing height.......Increasing to 3500 ft AGL in the afternoon.
Transport winds.....Southwest around 8 mph.
Haines Index........2 Very Low.

$$
Forecaster...SVH
Requested by...Kyrk Barron
Type of request...PRESCRIBED
.TAG 2218582.0/OTX
.DELDT 09/24/22
.FormatterVersion 2.0.0
.EMAIL kyrk.barron@usda.gov,megan.primmer@usda.gov


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