606
FNUS76 KOTX 222151
FWSOTX

Spot Forecast for Pioneer...NPS
National Weather Service Spokane WA
251 PM PDT Sun Sep 22 2024

Forecast is based on forecast start time of 0600 PDT on September 23.
If conditions become unrepresentative...contact the National Weather
Service.

.DISCUSSION...

A warming and drying trend will occur through Tuesday as high pressure
moves in.  This will result in decreasing winds although some gusts
up to 20 MPH will occur on Monday.  On Wednesday a cold front will arrive
in the afternoon or early evening with gusty west winds with rain showers
likely. There is a 50% chance of the fire receiving a wetting rain
(0.10" or more). Another cold front arrives Thursday Night into Friday
with more breezy west winds, and a 40% chance of a wetting rain.

.MONDAY...

Sky/weather.........Partly cloudy. Slight chance of sprinkles in
                    the morning.
CWR.................0 percent.
LAL.................1.
Max temperature.....1100 ft elevation: 80 near the lake.
                    6000 ft elevation: 60 near ridge top.
Min humidity........1100 ft elevation: 44 percent.
                    6000 ft elevation: 62 percent.
Wind (20 ft)........West winds 6 to 10 mph with gusts to 20
                    mph with strongest winds along Lake Chelan and
                    on ridge tops. Except for steep north-south
                    drainages wind downslope/downvalley 5 to 10 mph in the
                    morning then upvalley/upvalley 3 to 8 mph in the
                    afternoon.
Mixing height.......Near the surface through 1000 PDT increasing
                    to 2500 ft AGL in the afternoon.
Transport winds.....West 10 to 15 mph.
Haines Index........2 Very Low.

.MONDAY NIGHT...

Sky/weather.........Mostly clear.
CWR.................0 percent.
LAL.................1.
Min temperature.....1100 ft elevation: 60 near the lake.
                    6000 ft elevation: 48 near ridge top.
Max humidity........70-85 percent.
Wind (20 ft)........Downslope/downvalley 4 to 8 mph, except on
                    ridgetops northwest 4 to 10 mph in the evening
                    then southwest 3 to 7 mph overnight.
Mixing height.......Near the surface.
Transport winds.....Northwest 5 to 10 mph in the evening then
                    downslope/downvalley near 5 mph.
Haines Index........2 Very Low.

.TUESDAY...

Sky/weather.........Sunny.
CWR.................0 percent.
LAL.................1.
Max temperature.....1100 ft elevation: 87 near the lake.
                    6000 ft elevation: 69 near ridge top.
Min humidity........1100 ft elevation: 31 percent.
                    6000 ft elevation: 44 percent.
Wind (20 ft)........Downslope/downvalley 2 to 5 mph through 1000 PDT
                    then upslope/upvalley 4 to 9 mph.
Mixing height.......Near the surface through 1000 PDT increasing to
                    3500 ft AGL in the afternoon.
Transport winds.....Downslope/downvalley around 5 mph through 1000 PDT
                    then southeast 5 to 10 mph.
Haines Index........2 Very Low.

.TUESDAY NIGHT...

Sky/weather.........Mostly clear.
CWR.................0 percent.
LAL.................1.
Min temperature.....1100 ft elevation: 61 near the lake.
                    6000 ft elevation: 48 near ridge top.
Max humidity........70-85 percent.
Wind (20 ft)........Downslope/downvalley 4 to 8 mph, except on
                    ridgetops southwest 4 to 10 mph, with gusts
                    up to 20 mph overnight.
Mixing height.......Near the surface.
Transport winds.....Downslope/downvalley 4 to 8 mph.
Haines Index........2 Very Low.

$$
Forecaster...JW
Requested by...Geoff Hibbs
Type of request...WILDFIRE
.TAG 2422791.2/OTX
.DELDT 09/22/24
.FormatterVersion 2.0.0
.EMAIL geoff_hibbs@nps.gov,sofia_ecker@nps.gov,zachary_w_allen@nps.gov,teague_walsh-felz@nps.gov,anna_valentine@nps.gov