137
FNUS76 KPDT 260056
FWSPDT

Spot Forecast for Darlene 3 Fire...Deschuites County SO/USFS
National Weather Service Pendleton OR
556 PM PDT Tue Jun 25 2024

Forecast is based on forecast start time of 1800 PDT on June 25.
***Thunderstorms imply gusty and erratic winds***
***Winds are 20 foot 10-minute averages***
***CWR-Chance of wetting rain 0.10 or greater***

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

.DISCUSSION...Precipitation from high-based convection is unlikely
overnight (<20% chance). Southwest to west winds late this afternoon
are expected to become northwest this evening before transitioning to lighter
downslope and downvalley winds overnight. Winds will increase in
magnitude from the southwest to west by mid-morning Wednesday, peaking
during the afternoon.

.TONIGHT...

Sky/weather.........Partly cloudy (40-50 percent). Areas of smoke
                    overnight.
CWR.................0 percent.
LAL.................1.
Min temperature.....47-50.
Max humidity........75-80 percent.
Wind (20 ft)........Northwest winds 5-8 mph with gusts to 15 mph
                    in the evening becoming downslope and downvalley
                    2-4 mph after midnight.
Ridgetop wind.......North to northeast 9-14 mph with gusts to 20 mph
                    in the evening, becoming southwest 8-12 mph
                    after midnight.
Mixing height.......Decreasing to 450-550 ft AGL overnight.
Transport winds.....Northwest 5-8 mph, becoming south-southwest
                    2-5 mph after midnight.
Haines Index........5 or moderate potential for large plume
                    dominated fire growth.

.WEDNESDAY...

Sky/weather.........Sunny (10-20 percent) then becoming partly
                    sunny (60-70 percent). Areas of smoke in the
                    morning.
CWR.................0 percent.
LAL.................1.
Max temperature.....76-79.
Min humidity........20-25 percent.
Wind (20 ft)........Southwest winds 5-9 mph with gusts to 20 mph
                    becoming west-southwest 12-15 mph with gusts
                    of 20-30 mph by late morning and afternoon.
Ridgetop wind.......Southwest winds 8-12 mph with gusts to 25 mph
                    becoming west-southwest 15-18 mph with gusts
                    of 20-30 mph by late morning and afternoon.
Mixing height.......Increasing to 6800-7800 ft AGL by afternoon.
Transport winds.....Southwest 15-20 mph.
Haines Index........3 or very low potential for large plume
                    dominated fire growth.

.WEDNESDAY NIGHT...

Sky/weather.........Partly cloudy (25-35 percent).
CWR.................0 percent.
LAL.................1.
Min temperature.....36-39.
Max humidity........82-87 percent.
Wind (20 ft)........Northwest winds 6-10 mph with gusts of 15 mph
                    in the evening, becoming west-southwest 2-5 mph
                    after midnight.
Ridgetop wind.......Northwest winds 7-11 mph with gusts of 15 mph
                    in the evening, becoming west-southwest 3-6 mph
                    after midnight.
Mixing height.......Decreasing to 600-1200 ft AGL overnight.
Transport winds.....West 10-15 mph.
Haines Index........2 or very low potential for large plume
                    dominated fire growth.

.THURSDAY...

Sky/weather.........Sunny (15-25 percent).
CWR.................0 percent.
LAL.................1.
Max temperature.....72-75.
Min humidity........23-28 percent.
Wind (20 ft)........Light winds becoming northwest 5-8 mph with
                    gusts to 15 mph in the afternoon.
Ridgetop wind.......Northwest winds 4-8 mph, becoming 7-11 mph with
                    gusts to 15 mph in the afternoon.
Mixing height.......Increasing to 5500-6000 ft AGL by afternoon.
Transport winds.....West 8-12 mph.
Haines Index........3 or very low potential for large plume
                    dominated fire growth.

$$
Forecaster...Plunkett
Requested by...Nathan Garibay
Type of request...WILDFIRE
.TAG 2416706.0/PDT
.DELDT 06/25/24
.FormatterVersion 2.0.0
.EMAIL nathan.garibay@deschutes.org