786 
FNUS76 KPDT 292320
FWSPDT

Spot Forecast for Mill Creek...College Place Fire Department
National Weather Service Pendleton OR
420 PM PDT Tue Jul 29 2025

Forecast is based on forecast start time of 1600 PDT on July 29. 
***Thunderstorms imply gusty and erratic winds***
***Winds are 20 foot 10-minute averages***
***CWR-Chance of wetting rain 0.10 or greater***
***Ventilation Index is derived from the
   transport wind multiplied by the mixing
   height in 100's of feet. Index categories
   are a generalized indicator only.***

If you have questions or concerns with this forecast, please
contact our office at (541) 276-8134.

...HEAT ADVISORY IN EFFECT FROM NOON WEDNESDAY TO 11 PM PDT
THURSDAY...

.DISCUSSION...Very dry and hot conditions are forecast at the burn
site through the forecast period, with a very low (5% to 10%) chance
of showers and thunderstorms near the vicinity. North to northeast
winds will peak this afternoon and evening before gradually shifting
easterly and turning southerly by 4-5AM Wed. A surface inversion will
develop overnight, impacting smoke dispersion, before breaking around
8-9AM Wed.

.REST OF TODAY...

Sky/weather.........Sunny (0-10 percent). 
CWR.................0 percent. 
Chance of lightning.1 percent. 
Max temperature.....Around 100. 
Min humidity........9-14 percent. 
Wind (20 ft)........North to northeast winds 8 to 15 mph with gusts 
                    to 20 mph through the afternoon, shifting easterly
                    this evening.
Ridgetop wind.......Northeast winds around 20 mph, shifting easterly
                    this evening.
Mixing height.......8100 ft AGL. 
Transport winds.....Northeast around 20 mph. 
Ventilation Index...Excellent (1620)

TIME (PDT)      4PM 5PM 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 
Chc of ltng (%).0   0   0   0   0   0   0   0   0   0   0   0   
Temp............97  98  97  95  88  76  77  74  73  73  72  69  
RH..............13  12  11  15  18  22  25  28  28  28  28  30  
20 FT wind dir..NE  N   N   N   NE   NE   E   SE  SE  SE  SE  S  
20 FT wind spd..15  15  14  13  10   10   9   8   8   8   8   8   
20 FT wind gust.20  20  20  18  16   15                         

.TONIGHT...

Sky/weather.........Mostly clear (5-15 percent). 
CWR.................0 percent. 
Chance of lightning.1 percent. 
Min temperature.....Around 70. 
Max humidity........25-30 percent. 
Wind (20 ft)........East winds 7 to 11 mph early in the evening,
                    shifting to the southeast overnight and becoming
                    south by the mid morning. 
Ridgetop wind.......Southeast around 10 mph in the evening through the
                    early morning, shifting south in the mid morning.
Mixing height.......700 ft AGL. 
Transport winds.....Southeast around 10 mph, becoming south Wednesday
                    morning.
Ventilation Index...Fair (290) decreasing to poor (40) overnight. 

$$
Forecaster...NWS Seattle
Requested by...David Winter
Type of request...WILDFIRE
.TAG 2518836.0/PDT
.DELDT 07/29/25
.FormatterVersion 2.0.0
.EMAIL dwinter@cpwa.us