094
FNUS76 KPDT 160603
FWSPDT

Spot Forecast for BOUNDARY RD 2...YAKAMA AGENCY
National Weather Service Pendleton OR
1103 PM PDT Tue Jul 15 2025

Forecast is based on forecast start time of 0600 PDT on July 16.
***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.

.DISCUSSION...Northerly winds (northwest to northeast through the
day) will develop tomorrow, with several wind switches overnight.
Winds will switch from west to northwest and back in the afternoon
Thursday. RHs will remain in the lower teens in the afternoons,
with poor to moderate overnight recovery. Overnight low level
inversions will develop by 11PM, then will lift generally after
8AM the following morning.

.WEDNESDAY...

Sky/weather.........Sunny (0-10 percent). Haze and areas of smoke
                    late in the afternoon.
CWR.................0 percent.
Chance of lightning.0 percent.
Max temperature.....91-94.
Min humidity........12-17 percent.
Wind (20 ft)........Northwest winds 5 to 10 mph shifting to the
                    north around 8AM, then shifting to the northeast
around 12PM, then to the east around 5PM.
Ridgetop wind.......North winds 5 to 10 mph shifting to the east
around 5 PM.
Mixing height.......5400 ft AGL early in the morning.
Transport winds.....North 8 to 9 mph shifting to the northeast
                    around 8 mph late in the morning, then shifting
                    to the west late in the afternoon shifting to
                    the southwest around 9 mph late in the
                    afternoon.
Ventilation Index...Poor (70) increasing to poor (150) in the
                    afternoon.

TIME (PDT)      6 AM   8 AM   10 AM  NOON   2 PM   4 PM
Chc of ltng (%).0      0      0      0      0      0
Temp............57     66     75     81     85     89
RH..............54     38     31     25     20     17
20 ft wind......NW 8   N 9    N 9    NE 10  NE 10  NE 10
20 ft wind gust.       11     11     13     13     13

.WEDNESDAY NIGHT...

Sky/weather.........Mostly clear (5-15 percent). Haze and areas of
                    smoke early in the evening.
CWR.................0 percent.
Chance of lightning.0 percent.
Min temperature.....62-65.
Max humidity........42-47 percent.
Wind (20 ft)........East winds 5 to 10 mph shifting to the south
                    around 8PM, then shifting to the west around 11PM.
Ridgetop wind.......East winds 5 to 10 mph shifting to the south
around 8PM, then shifting to the west by 11PM.
Mixing height.......500 ft AGL in the evening.
Transport winds.....Southwest 7 to 10 mph shifting to the west 7 to
                    9 mph overnight.
Ventilation Index...Fair (230) decreasing to poor (30) overnight.

.THURSDAY...

Sky/weather.........Sunny (0-10 percent).
CWR.................0 percent.
Chance of lightning.0 percent.
Max temperature.....94-97.
Min humidity........10-15 percent.
Wind (20 ft)........West winds 5 to 10 mph shifting to the
                    northwest after 11AM, then shifting to the west
around 5PM.
Ridgetop wind.......West winds 5 to 11 mph shifting to the north
by 11AM.
Mixing height.......8300 ft AGL early in the morning.
Transport winds.....West around 7 mph shifting to the north early
                    in the morning, then shifting to the west 7 to
                    9 mph late in the morning.
Ventilation Index...Poor (40) increasing to fair (400) in the
                    afternoon.

$$
Forecaster...Lawhorn
Requested by...SAMANTHA WATLAMET
Type of request...WILDFIRE
.TAG 2518095.0/PDT
.DELDT 07/16/25
.FormatterVersion 2.0.0
.EMAIL samantha_watlamet@yakama.com