FNUS76 KOTX 232151
FWSOTX

Spot Forecast for Parvin...NEWICC
National Weather Service Spokane WA
251 PM PDT Sun Aug 23 2026

Forecast is based on forecast start time of 1500 PDT on August 23. 
.DISCUSSION...

Dry and breezy conditions this afternoon will slowly ease off 
into the evening with a slow wind shift to south and eventually 
southeast. A warming and drying trend commences Monday and Tuesday
as high pressure strengthens across the Inland Northwest. RH 
recoveries will be fair overnight into Tuesday. Winds Wednesday 
and Thursday will be breezy out of the southwest around 10-20 mph 
with gusts around 20-30 mph as high pressure breaks down. This 
will come with a threat of isolated thunderstorms Wednesday (10% 
chance).

If conditions become unrepresentative, contact the National Weather
Service.
***************************************************************
Forecasts for 20 foot wind speeds (valleys and ridge tops) are
10 minute averages reflecting RAWS wind.
***Ventilation Index is derived from transport wind
   multiplied by the mixing height divided by 100.
   Categories: low (< 200), moderate (200-500), 
   high (500-800), and very high (> 800). 
***************************************************************

.TODAY...

Sky/weather.........Sunny. 
CWR.................0 percent. 
Chance of lightning.0 percent. 
Max temperature.....77. 
Min humidity........27-32 percent. 
Wind (20 ft)........West winds 8 to 11 mph. Gusts up to 20 mph.
Mixing height.......3000 ft AGL. 
Transport winds.....West 16 to 18 mph. 
Ventilation Index...Very high (832). 

TIME (PDT)      3PM 4PM 5PM 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM     
Temp............75  75  75  76  74  69  61  57  54  52  50  49  
RH..............31  30  31  32  33  44  55  64  69  74  77  80  
20 FT wind dir..W   W   W   W   W   W   SW  S   S   SE  SE  SE  
20 FT wind spd..11  10  9   8   7   6   6   5   4   4   4   4   
20 FT wind gust.20  19  17  12  10  6   6   5   4   4   4   4   
Transp wind dir.W   W   W   W   W   W   W   SW  SW  S   S   S   
Transp wind spd.18  17  16  14  10  8   7   6   6   6   6   7   

.TONIGHT...

Sky/weather.........Mostly clear. 
CWR.................0 percent. 
Chance of lightning.0 percent. 
Min temperature.....49. 
Max humidity........80-85 percent. 
Wind (20 ft)........South/southeast winds around 4 mph in the 
                    evening becoming southeast around midnight.
Mixing height.......Falling to near surface around 1900 hours. 
Transport winds.....West 6 to 14 mph shifting to the southeast 
                    around 7 mph after 3 am. 
Ventilation Index...High (600) decreasing to low (28) overnight. 

.MONDAY...

Sky/weather.........Sunny. 
CWR.................0 percent. 
Chance of lightning.0 percent. 
Max temperature.....87. 
Min humidity........15-20 percent. 
Wind (20 ft)........East winds around 5-10 mph. 
Mixing height.......500 ft AGL increasing to 6500 ft AGL. 
Transport winds.....Southeast 5 to 8 mph shifting to the southwest 
                    around 6 mph late in the afternoon, then 
                    shifting to the west late in the afternoon. 
Ventilation Index...Moderate (218) increasing to moderate (319) in 
                    the afternoon. 

$$
Forecaster...DB
Requested by...Cameron
Type of request...WILDFIRE
.TAG 2620324.0/OTX
.DELDT 08/23/26
.FormatterVersion 2.0.0
.EMAIL wanec@firenet.gov