271
FNUS76 KPDT 302141
FWSPDT

Spot Forecast for Bologna...USFS
National Weather Service Pendleton OR
241 PM PDT Thu Jul 30 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.

...FIRE WEATHER WATCH IN EFFECT FROM SATURDAY MORNING THROUGH
SATURDAY EVENING...

.DISCUSSION...Inversion breaks between 0700 and 0800 with a
thermal belt around 4000 feet Friday morning. Winds will increase
through the afternoon out of the north-northwest under clear
skies. Incoming dry cold front Saturday will bring breezy
conditions, peaking in the mid-to late afternoon. Minimum
humidities improve 6-9% from Friday.

.FRIDAY...

Sky/weather.........Sunny (0-10 percent). Patchy smoke.
CWR.................0 percent.
Chance of lightning.0 percent.
Max temperature.....89-92.
Min humidity........12-17 percent.
Wind (20 ft)........Light east winds becoming west 3 to 7 mph
                    after 1300 then from the north with gusts up
                    to 15 mph after 1500. Winds peak between
                    1700-2000.
Ridgetop wind.......Light east winds becoming west 4 to 8 mph
                    after 1300 then  from the north with gusts
                    up to 20 mph after 1500. Winds peak between
                    1700-2000.
Mixing height.......5700 ft AGL early in the morning.
Transport winds.....Light winds becoming west around 8 mph late in
                    the afternoon, then shifting to the north
                    around 12 mph late in the afternoon.
Ventilation Index...Low (30) increasing to low (110-120) in the
                    afternoon.

TIME (PDT)      6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Chc of ltng (%).0   0   0   0   0   0   0   0   0   0   0   0
Temp............56  59  62  66  73  78  82  86  89  90  90  90
RH..............41  39  36  31  27  23  21  18  17  16  16  17
20 FT wind dir..N   N   NE  E   E   E   NE  W   W   NW  N   N
20 FT wind spd..3   2   2   2   2   3   3   3   4   6   7   7
20 FT wind gust.4   4       5   6   6   6   6   7   10  12  14

.FRIDAY NIGHT...

Sky/weather.........Mostly clear (5-15 percent). Patchy smoke early
                    in the evening.
CWR.................0 percent.
Chance of lightning.0 percent.
Min temperature.....59-62.
Max humidity........36-41 percent.
Wind (20 ft)........North winds 5 to 10 mph with gusts up to 15 mph
                    becoming northwest 2 to 6 mph after 2300.
Ridgetop wind.......North winds 6 to 12 mph with gusts up to 20 mph
                    becoming northwest 3 to 7 mph after 2300.
Mixing height.......500 ft AGL in the evening.
Transport winds.....Northwest 6 to 12 mph becoming light.
Ventilation Index...Moderate (210) decreasing to low (30)
                    overnight.

.SATURDAY...

Sky/weather.........Sunny (10-20 percent).
CWR.................0 percent.
Chance of lightning.0 percent.
Max temperature.....81-84.
Min humidity........20-25 percent.
Wind (20 ft)........Light terrain driven winds becoming west 5 to
                    10 mph with gusts to around 18 mph after 1000
                    then west-northwest winds 10 to 17 mph with
                    gusts up to 25 mph after 1300. Winds peak
                    between 1600-1900.
Ridgetop wind.......Light winds becoming west 6 to 12 mph with
                    gusts to around 22 mph after 1000 then west
                    northwest 12 to 20 mph with gusts up to 30
                    mph after 1300. Winds peak between 1600-1900.
Mixing height.......6100 ft AGL early in the morning.
Transport winds.....Light winds becoming west 17 to 20 mph.
Ventilation Index...Low (30) increasing to high (590-620) in the
                    afternoon.

$$
Forecaster...Callihan
Requested by...Corrin Floyd
Type of request...WILDFIRE
.TAG 2618691.0/PDT
.DELDT 07/30/26
.FormatterVersion 2.0.0
.EMAIL corrin_floyd@firenet.gov