145
FNUS76 KPDT 080042
FWSPDT

Spot Forecast for Hidden Forest OR-DEF-865...USFS
National Weather Service Pendleton OR
542 PM PDT Fri Aug 7 2026

Forecast is based on forecast start time of 2000 PDT on August 07.
***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 transport wind
   multiplied by the mixing height in 100`s of ft.
   Categories are a generalized indicator only:
   low (< 200), moderate (200-500), high (500-700),
   and very high (> 700).                           ***

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

.DISCUSSION...Overnight recoveries tonight will be fair to moderate with
light winds, becoming terrain driven by the overnight hours. Relative
humidities in the day will drop into/near the single digits with
slightly breezy conditions developing by the afternoon hours of Saturday.
Slight improvement in overnight recoveries heading into Sunday, but will
still be mostly fair to moderate.


.REST OF TONIGHT...

Sky/weather.........Mostly clear (10-20 percent).
CWR.................0 percent.
Chance of lightning.0 percent.
Min temperature.....50-55.
Max humidity........43-48 percent.
Wind (20 ft)........Northwest winds 5 to 10 mph, then becoming
                    south 3 to 8 mph after 2 am.
Ridgetop wind.......Northwest winds 7 to 12 mph, then becoming
                    south 5 to 10 mph after 2 am.
Mixing height.......500 ft AGL early in the evening.
Transport winds.....Northwest 9 to 14 mph early in the evening
                    becoming light, then becoming southwest
                    5 to 10 mph early in the morning.
Ventilation Index...Moderate (390) decreasing to low (30)
                    overnight.

TIME (PDT)      8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM 6AM 7AM
Chc of ltng (%).0   0   0   0   0   0   0   0   0   0   0   0
Temp............79  73  69  65  61  59  57  54  53  53  52  56
RH..............22  28  33  38  43  46  48  49  49  46  46  40
20 FT wind dir..NW  NW  NW  W   SW  SW  S   S   S   S   S   SW
20 FT wind spd..8   7   5   4   4   4   4   4   5   5   5   5
20 FT wind gust.13  10  7   5           5   5           6


TIME (PDT)      8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM 6PM 7PM
Chc of ltng (%).0   0   0   0   0   0   0   0   0   0   0   0
Temp............63  68  76  79  83  86  86  87  88  86  85  82
RH..............33  26  20  17  14  13  13  12  13  14  16  19
20 FT wind dir..SW  SW  SW  N   N   N   N   N   N   N   N   N
20 FT wind spd..5   4   6   8   8   10  10  11  12  12  12  12
20 FT wind gust.6   6   7   11  13  14  16  17  17  18  18  18


TIME (PDT)      8PM 9PM 10P
Chc of ltng (%).0   0   0
Temp............75  69  65
RH..............25  31  36
20 FT wind dir..N   N   N
20 FT wind spd..8   8   8
20 FT wind gust.16  16  16  6


.SATURDAY...

Sky/weather.........Sunny (5-15 percent).
CWR.................0 percent.
Chance of lightning.0 percent.
Max temperature.....Around 90.
Min humidity........7-12 percent.
Wind (20 ft)........Southwest winds 3 to 8 mph, then becoming north
                    5 to 10 mph by 11 AM. Wind gusting up to 20 mph by
                    1 PM.
Ridgetop wind.......Southwest winds 5 to 10 mph, then becoming north
                    7 to 12 mph by 11 AM. Wind gusting up to 25 mph by
                    1 PM.
Mixing height.......7500 ft AGL early in the morning.
Transport winds.....Southwest 5 to 10 mph shifting to the
                    northwest 10 to 15 mph early in the morning.
Ventilation Index...Low (40) increasing to high (620) in the
                    afternoon.

.SATURDAY NIGHT...

Sky/weather.........Clear (0-5 percent).
CWR.................0 percent.
Chance of lightning.0 percent.
Min temperature.....49-54.
Max humidity........52-57 percent.
Wind (20 ft)........North winds 7 to 12 mph becoming light by 10 PM.
Ridgetop wind.......North winds 10 to 15 mph becoming light by 10 PM.
Mixing height.......500 ft AGL in the evening and overnight then
                    500 ft AGL early in the morning.
Transport winds.....North 6 to 15 mph in the evening and overnight
                    becoming light, then becoming southwest 5 to 10 mph
                    early in the morning.
Ventilation Index...Moderate (370) decreasing to low (30)
                    overnight.

$$
Forecaster...Day
Requested by...Nicholas.foey@usda.gov
Type of request...WILDFIRE
.TAG 2619176.0/PDT
.DELDT 08/07/26
.FormatterVersion 2.0.0
.EMAIL nicholas.foey@usda.gov,Nicholas.foey@usda.gov,william.fielder@usda.gov