Suppression Forecast
Issued by NWS Spokane, WA

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FNUS76 KOTX 212129
FWSOTX

Spot Forecast for Jack Creek Fire...USFS
National Weather Service Spokane WA
229 PM PDT Mon Aug 21 2017

Forecast is based on request time of 0600 PDT on August 21.
If conditions become unrepresentative...contact the National Weather
Service.

.DISCUSSION...

...Strong dry cold front passage Wednesday night into Thursday
morning...

A ridge of high pressure aloft will build over the fire and allow
for a warming trend that peaks on Tuesday. Wednesday a surge of
marine air will push up to the west of the fire and as a result
the northwest winds will increase. Windy conditions are expected
Wednesday night into Thursday when the dry cold front passes
with wind blowing out from the west.

.TUESDAY...

Sky/weather.........Sunny.
CWR.................0 percent.
LAL.................1.
Max temperature.....Around 80.
Min humidity........25 percent.
Wind (20 ft)........Upslope/upvalley 2 to 5 mph in the morning becoming
                    southwest 5 to 6 mph in the afternoon.
Mixing height.......Near surface in the morning...becoming 4600 ft
                    AGL in the afternoon.
Transport winds.....Southwest 3 to 7 mph.
Haines Index........3 very low.

.TUESDAY NIGHT...

Sky/weather.........Mostly clear.
CWR.................0 percent.
LAL.................1.
Min temperature.....Around 55.
Max humidity........78 percent.
Wind (20 ft)........Northwest winds 4 to 8 mph.
Mixing height.......Lowering to near surface overnight.
Transport winds.....Northwest 6 to 10 mph.
Haines Index........4 low.

.WEDNESDAY...

Sky/weather.........Some high clouds streaming overhead, otherwise
                    mostly sunny.
CWR.................near 0 percent.
LAL.................1.
Max temperature.....Around 74.
Min humidity........39 percent.
Wind (20 ft)........Northwest winds 5 to 8 mph. Increasing overnight.
Mixing height.......Near surface in the morning...becoming 4500 ft
                    AGL in the afternoon.
Transport winds.....West 6 to 10 mph. Increasing overnight.
Haines Index........4 low.

$$
Forecaster...RP
Requested by...Toby Stapleton
Type of request...WILDFIRE
.TAG 1714476.3/OTX


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