Suppression Forecast
Issued by NWS Spokane, WA

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FNUS76 KOTX 191923
FWSOTX

Spot Forecast for Nasty 35 RX...CWICC
National Weather Service Spokane WA
1223 PM PDT Thu Sep 19 2019

Forecast is based on ignition time of 1300 PDT on September 19.
If conditions become unrepresentative...contact the National Weather
Service.

.DISCUSSION...
A stable layer (inversion) will exist for the next few hours
roughly 1600-1900 feet above the project.  As temperatures
warm, this layer is expected to lift closer to 2500-2800 feet
between 1400-1600 pdt above the project elevation before lowering
again after 1700 pdt.  A fast moving disturbance will drop through
the region tonight and Friday and will support increasing clouds and
a few showers near the crest. It will also increase the winds on
area ridges. A little warmer and dry Saturday, but expect more
cool and wet weather by Sunday afternoon.

.REST OF TODAY...

Sky/weather.........Partly sunny.  Filtered sunshine though
                    increasing mid and high clouds.
CWR.................0 percent.
LAL.................1.
Max temperature.....64.
Min humidity........47 percent.
Wind (20 ft)........Upslope 3 to 6 mph...becoming northwest
                    6 to 9 mph after 1400 pdt.  Gusts to 15 mph
                    after 1600 pdt.
Mixing height.......1800 ft AGL this morning...increasing to
                    2600 ft AGL between 1400-1600 pdt.
Transport winds.....Northwest around 10 mph.
Haines Index........2 or very low potential for large plume
                    dominated fire growth.

.TONIGHT...

Sky/weather.........Mostly cloudy. Slight chance for sprinkles.
CWR.................5 percent.
LAL.................1.
Min temperature.....46.
Max humidity........87 percent.
Wind (20 ft)........Northwest winds 8 to 12 mph gusts 15-20 mph.
Mixing height.......900 feet AGL.
Transport winds.....Northwest around 13 mph.
Haines Index........2 or very low potential for large plume
                    dominated fire growth.

.FRIDAY...

Sky/weather.........Mostly cloudy in the morning...becoming
                    mostly sunny.
CWR.................0 percent.
LAL.................1.
Max temperature.....65.
Min humidity........49 percent.
Wind (20 ft)........Northwest winds 8 to 11 mph. Gusts 15 to 19 mph
                    in the afternoon.
Mixing height.......900 ft AGL in the morning increasing to
                    2500 ft AGL in the afternoon.
Transport winds.....Northwest 12 mph.
Haines Index........2 or very low potential for large plume
                    dominated fire growth.

$$
Forecaster...SB
Requested by...Ben Marquart
Type of request...PRESCRIBED
.TAG 1915710.1/OTX
.DELDT 09/19/19
.FormatterVersion 1.0.26
.EMAIL Benjamin.marquart@usda.gov


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