107
FNUS76 KPDT 152027
FWSPDT

Spot Forecast for FERRY FIRE...USFS
National Weather Service Pendleton OR
127 PM PDT Sun Jun 15 2025

Forecast is based on forecast start time of 0600 PDT on June 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...The weather pattern for the remainder of the work
week will remain persistent, making for breezy winds at the site,
especially Monday and Wednesday afternoon, where gusts could
eclipse 30 mph at times. As the week progresses, however, cooler
air will move in and RHs will improve. A weather system is then
expected to move into the Pacific Northwest on Friday, making for
widespread rain chances heading into the weekend, as well as
below-average temperatures that will work to further increase RHs.

.MONDAY...

Sky/weather.........Partly sunny (50-60 percent) then becoming
                    sunny (15-25 percent).
CWR.................0 percent.
Chance of lightning.0 percent.
Max temperature.....76-80.
Min humidity........19-24 percent.
Wind (20 ft)........West-Northwest winds 12 to 20 mph with gusts up
                    to 30 mph.
Ridgetop wind.......West winds 20 to 30 mph.
Mixing height.......3800 ft AGL by the afternoon.
Transport winds.....West 14 to 20 mph increasing to 25 to 30 mph
                    late in the afternoon.
Ventilation Index...Poor (170-180) increasing to good (550-580) 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............56     65     71     77     78     78
RH..............52     44     34     28     26     25
20 ft wind......W 10   W 13   W 13   W 18   W 21   W 21
20 ft wind gust.14     18     18     23     26     26

.MONDAY NIGHT...

Sky/weather.........Mostly clear (5-15 percent).
CWR.................0 percent.
Chance of lightning.0 percent.
Min temperature.....52-55.
Max humidity........58-63 percent.
Wind (20 ft)........West winds 12 to 22 mph with gusts to around 30
                    mph, shifting to the southwest 7 to 14 mph with
                    gusts to around 20 mph overnight.
Ridgetop wind.......West winds 15 to 25 mph.
Mixing height.......1100 ft AGL in the evening, then near-surface
                    overnight.
Transport winds.....West 25 to 30 mph becoming Southwest around 15
                    mph overnight.
Ventilation Index...Good (550-580) decreasing to poor (100-110)
                    overnight.

.TUESDAY...

Sky/weather.........Sunny (0-10 percent).
CWR.................0 percent.
Chance of lightning.0 percent.
Max temperature.....77-82.
Min humidity........21-26 percent.
Wind (20 ft)........West-Northwest winds 8 to 16 mph with gusts up
                    to 20 mph in the afternoon.
Ridgetop wind.......West-Southwest winds 15 to 20 mph.
Mixing height.......5000 ft AGL by the afternoon.
Transport winds.....West 12 to 18 mph.
Ventilation Index...Poor (180-190) increasing to good (640-660) in
                    the afternoon.

.TUESDAY NIGHT...

Sky/weather.........Sunny (0-10 percent).
CWR.................0 percent.
Chance of lightning.0 percent.
Min temperature.....49-54.
Max humidity........63-68 percent.
Wind (20 ft)........West winds 8 to 14 mph, becoming Southwest at
                    5 to 10 mph overnight.
Ridgetop wind.......West-Southwest winds around 20 mph early in the
                    evening, decreasing to around 15 mph overnight.
Mixing height.......1500 ft AGL early in the evening, then near-
                    surface overnight.
Transport winds.....West 14 to 20 mph early in the evening, becoming
                    Southwest around 10 mph overnight.
Ventilation Index...Good (580-600) decreasing to poor (60-80)
                    overnight.

.WEDNESDAY...

Sky/weather.........Sunny (0-10 percent).
CWR.................0 percent.
Chance of lightning.0 percent.
Max temperature.....74-79.
Min humidity........30-35 percent.
Wind (20 ft)........West-Northwest winds 10 to 18 mph with gusts up to
                    25 mph in the afternoon.
Ridgetop wind.......West winds 15 to 25 mph.
Mixing height.......5700 ft AGL by the afternoon.
Transport winds.....West 16 to 22 mph.
Ventilation Index...Poor (80-100) increasing to good (750-800) in
                    the afternoon.

.FORECAST DAYS 4 THROUGH 6...
.THURSDAY...
Mostly clear. Lows in the lower 50s. Highs in the upper 70s. West
winds around 11 mph.
.FRIDAY...
Partly cloudy. Lows in the lower 50s. Highs in the upper 60s.
West winds around 14 mph.
.SATURDAY...
Mostly cloudy with a chance of showers. Lows in the upper 40s.
Highs in the mid 60s. West winds 15 to 20 mph.

$$
Forecaster...Evans
Requested by...Ryan Gregg
Type of request...WILDFIRE
.TAG 2515876.2/PDT
.DELDT 06/15/25
.FormatterVersion 2.0.0
.EMAIL ryan.gregg@usda.gov,orcoc@firenet.gov,amy.e.lowe@usda.gov