631
FNUS76 KPDT 310836
FWSPDT

Spot Forecast for YTC...YTC FD
National Weather Service Pendleton OR
136 AM PDT Fri Jul 31 2026

Forecast is based on forecast start time of 0600 PDT on July 31.
***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.

...WIND ADVISORY IN EFFECT FROM 11 AM TO 11 PM PDT SATURDAY...

.DISCUSSION...Dry weather is expected through Saturday.

MIN RH values will be around 15 percent today and 25 to 30 percent
on Saturday, with moderate overnight recoveries.

Winds will be out of the northwest and north this morning, then shift
to the southeast this afternoon with speeds mainly 10 to 15 mph in the
morning, then 10 mph or less.

Winds increase tonight and Saturday and will be out of the northwest
tonight and west on Saturday with gusts up to 40 mph.

.TODAY...

Sky/weather.........Sunny (0-10 percent). Patchy smoke late in the
                    afternoon.
Chance of pcpn......0 percent.
Chance of lightning.0 percent.
Max temperature.....Around 90.
Min humidity........12-17 percent.
Surface winds (mph).Northwest winds 6 to 15 mph shifting to the
                    north 6 to 8 mph late in the morning, then
                    shifting to the southeast 6 to 10 mph late in
                    the morning becoming 6 to 10 mph late in the
                    afternoon.
Mixing height.......5300 ft AGL.
Transport winds.....Northwest 7 to 14 mph shifting to the south 5
                    to 8 mph late in the morning.

TIME (PDT)      6 AM   8 AM   10 AM  NOON   2 PM   4 PM
Chc of ltng (%).0      0      0      0      0      0
Temp............59     64     73     79     84     86
RH..............41     35     26     22     19     18
Surface wind....NW 15  NW 10  N 8    E 6    SE 8   SE 9
Surface wnd gst.18     12                   9      10

.TONIGHT...

Sky/weather.........Mostly clear (5-15 percent). Patchy smoke in
                    the evening.
Chance of pcpn......0 percent.
Chance of lightning.0 percent.
Min temperature.....63-66.
Max humidity........49-54 percent.
Surface winds (mph).Breezy. South winds 6 to 10 mph shifting to the
                    northwest 15 to 25 mph in the late evening and
                    overnight, then increasing to 20 to 35 mph with
                    gusts to around 40 mph after 3 am.
Mixing height.......500 ft AGL.
Transport winds.....Southwest around 8 mph shifting to the
                    northwest 7 to 16 mph early in the evening,
                    then increasing to 26 to 28 mph overnight.

.SATURDAY...

Sky/weather.........Sunny (5-15 percent).
Chance of pcpn......0 percent.
Chance of lightning.0 percent.
Max temperature.....79-82.
Min humidity........25-30 percent.
Surface winds (mph).Breezy. West winds 20 to 35 mph. Gusts up to 40
                    mph.
Mixing height.......7500 ft AGL.
Transport winds.....West 21 to 28 mph.

$$
Forecaster...Nierenberg
Requested by...Josh Thompson
Type of request...OTHER
.TAG 2618719.0/PDT
.DELDT 07/31/26
.FormatterVersion 2.0.0
.EMAIL joshua.a.thompson36.civ@army.mil