802 
FNUS76 KOTX 152245
FWSOTX

Spot Forecast for WALKER CREEK FIRE...DNR/USFS
National Weather Service Spokane WA
345 PM PDT Sun Aug 15 2021

Forecast is based on forecast start time of 0600 PDT on August 16. 
If conditions become unrepresentative...contact the National Weather
Service.

...RED FLAG WARNING IN EFFECT UNTIL 11 PM PDT THIS EVENING...

.DISCUSSION...

Breezy southwest winds will subside this evening at the Walker
Creek fire with the passage of a dry cold front tonight. Expect 
cooler temperatures and slightly higher humidities for Monday with
a return of breezy westerly winds. The cooling continues Monday
night into Tuesday as an upper level disturbance tracks over the 
fire with a threat of showers. A stray thunderstorm is possible
Tuesday afternoon, while better chances will be to the east of 
the fire. Winds will become northerly and gusty on Tuesday. The 
increase in winds may help mix out the smoke by Monday, yet the 
northerly winds may bring more smoke to the area. Anticipate warmer 
and drier conditions with less wind for Wednesday and through the 
rest of the week.     

.MONDAY...

Sky/weather.........Partly sunny. Areas of smoke. 
CWR.................0 percent. 
LAL.................1. 
Max temperature.....Around 74. 
Min humidity........26 percent. 
Wind (20 ft)........West-southwest winds 2 to 5 mph through late 
                    morning, becoming west 6 to 12 mph through
                    the afternoon. Gusts to 18 mph on exposed 
                    ridges.  
Mixing height.......Near surface in the morning increasing to 
                    7000 ft AGL in the afternoon. 
Transport winds.....West around 18 mph. 
Haines Index........2 or very low potential for large plume 
                    dominated fire growth. 

.MONDAY NIGHT...

Sky/weather.........Cloudy. Areas of smoke. Chance of rain showers
                    overnight. 
CWR.................20 percent. 
LAL.................1. 
Min temperature.....Around 51. 
Max humidity........80 percent. 
Wind (20 ft)........Northwest winds 5 to 11 mph through mid evening,
                    becoming north 4 to 9 mph overnight. Local gusts
                    to 15 mph in the early evening on exposed ridges.
Mixing height.......5000 ft AGL in the evening decreasing to near 
                    the surface overnight. 
Transport winds.....Northwest around 12 mph in the evening, then
                    decreasing to 8 mph overnight. 
Haines Index........2 or very low potential for large plume 
                    dominated fire growth. 

.TUESDAY...

Sky/weather.........Mostly cloudy. Areas of smoke. Chance of rain
                    showers. A stray thunderstorm is possible in 
                    the afternoon. 
CWR.................10 percent. 
LAL.................2. 
Max temperature.....Around 61. 
Min humidity........49 percent. 
Wind (20 ft)........North-northwest winds 7 to 12 mph in the morning 
                    increasing 13 to 17 mph in the afternoon. Gusts 
                    up to 25 mph on exposed ridges. Erratic winds 
                    possible near thunderstorms. 
Mixing height.......1000 ft AGL in the morning increasing to 6500 
                    ft AGL in the afternoon. 
Transport winds.....Northwest around 25 mph. 
Haines Index........2 or very low potential for large plume 
                    dominated fire growth. 

$$
Forecaster...RF
Requested by...Eric Trimble
Type of request...WILDFIRE
.TAG 2117069.12/OTX
.DELDT 08/15/21
.FormatterVersion 1.0.26
.EMAIL eric.trimble@usda.gov