137
FNUS76 KPDT 262130
FWSPDT

Spot Forecast for Darlene 3...Oregon State Fire Marshal
National Weather Service Pendleton OR
230 PM PDT Wed Jun 26 2024

Forecast is based on forecast start time of 1500 PDT on June 26.
***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...Winds are expect to increase at the wildfire this
afternoon with gusts up to 25 mph with a shift in wind direction
from WNW to W most likely between 3 to 5 PM owing to a crossing
cold front. Elevated winds will persist into the evening before
winds become light after midnight, around 3 to 5 mph. Cooler air
will move in tomorrow in tandem with good RH recovery tonight.
Breezy conditions return tomorrow with fair chances (60-80%) to
see gusts around 20 mph.

.REST OF TODAY...

Sky/weather.........Partly sunny (60-70 percent).
CWR.................0 percent.
LAL.................1.
Max temperature.....Around 79.
Min humidity........18-22 percent.
Wind (20 ft)........West northwest winds around 10 mph with gusts
                    to around 20 mph shifting to the west 15 mph
                    with gusts up to 25 around 3 to 5 PM.
Mixing height.......7000 ft AGL.
Transport winds.....Southwest 18 to 25 mph.
Haines Index........2 to 3 or very low potential for large plume
                    dominated fire growth.

TIME (PDT)       3 PM      6 PM      9 PM      MIDNGT
Temp............ 75        68        58        48
RH.............. 22        34        54        73
20 FT wind......WNW 16G20  W 13G20   W 12G16   W 08

.TONIGHT...

Sky/weather.........Mostly cloudy (70-80 percent) then becoming
                    partly cloudy (40-50 percent).
CWR.................0 percent.
LAL.................1.
Min temperature.....38-40.
Max humidity........89-94 percent.
Wind (20 ft)........West winds 8 to 12 mph with gusts to around 20
                    mph in the evening becoming light drainage winds
                    2 to 4 mph after midnight.
Mixing height.......1500 ft AGL.
Transport winds.....West 10 to 18 mph.
Haines Index........2 to 3 or very low potential for large plume
                    dominated fire growth.

.THURSDAY...

Sky/weather.........Mostly sunny (20-30 percent).
CWR.................0 percent.
LAL.................1.
Max temperature.....71-74.
Min humidity........21-26 percent.
Wind (20 ft)........Light west winds 2 to 4 mph becoming northwest
                    5 to 8 mph late in the morning with gusts
                    15 to 20 mph.
Mixing height.......5500 ft AGL.
Transport winds.....West 10 to 15 mph.
Haines Index........2 or very low potential for large plume
                    dominated fire growth.

$$
Forecaster...Townsend
Requested by...Chris Schimmer
Type of request...WILDFIRE
.TAG 2416760.0/PDT
.DELDT 06/26/24
.FormatterVersion 2.0.0
.EMAIL christopher.schimmer@portlandoregon.gov