872
FNUS76 KPDT 232159
FWSPDT

Spot Forecast for SLIDE RANCH...SE WA IMT
National Weather Service Pendleton OR
259 PM PDT Sun Jun 23 2024

Forecast is based on forecast start time of 1800 PDT on June 23.
***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.

...RED FLAG WARNING IN EFFECT UNTIL 8 PM PDT THIS EVENING
FOR WINDS AND LOW RELATIVE HUMIDITY...

.DISCUSSION...Dry air from aloft will continue to mix to the surface
this afternoon. Southwest winds will transition to westerly to northwesterly
this evening, followed by lighter drainage (downslope, downvalley) winds
overnight. Winds will be diurnally and terrain-driven Monday and Tuesday.

.TONIGHT...

Sky/weather.........Mostly clear (5-15 percent).
CWR.................0 percent.
LAL.................1.
Min temperature.....47-50.
Max humidity........67-72 percent.
Wind (20 ft)........Becoming west to northwest winds 10-15 mph, gusting to
                    25 mph in the evening. Winds will become variable 2-6 mph
                    overnight.
Mixing height.......Decreasing to 250-500 ft AGL overnight.
Transport winds.....West 7-10 mph, diminishing to 3-6 mph overnight.
Haines Index........4 or low potential for large plume dominated
                    fire growth.

.MONDAY...

Sky/weather.........Sunny (0-10 percent).
CWR.................0 percent.
LAL.................1.
Max temperature.....84-87.
Min humidity........16-21 percent.
Wind (20 ft)........Variable 2-5 mph early, becoming upslope, upvalley
                    (east to northeast) 4-7 mph by mid-morning and afternoon.
Mixing height.......Increasing to 5500-6000 ft AGL by afternoon.
Transport winds.....Southwest 4-6 mph.
Haines Index........4 or low potential for large plume dominated
                    fire growth.

.MONDAY NIGHT...

Sky/weather.........Mostly clear (0-10 percent).
CWR.................0 percent.
LAL.................1.
Min temperature.....53-56.
Max humidity........58-63 percent.
Wind (20 ft)........Northeast winds 4-7 mph becoming downslope, downvalley
                    2-5 mph overnight.
Mixing height.......Decreasing to 250-500 ft AGL overnight.
Transport winds.....North 4-7 mph.
Haines Index........3 or very low potential for large plume
                    dominated fire growth.

.TUESDAY...

Sky/weather.........Sunny (0-10 percent).
CWR.................0 percent.
LAL.................1.
Max temperature.....92-95.
Min humidity........11-16 percent.
Wind (20 ft)........Downslope, downvalley early morning, becoming upslope, upvalley
                    (northeast to east) 4-6 mph by mid-morning and afternoon.
Mixing height.......Increasing to 7500-8000 ft AGL by afternoon.
Transport winds.....East 4-7 mph.
Haines Index........3 or very low potential for large plume
                    dominated fire growth.

$$
Forecaster...Plunkett
Requested by...David Winter
Type of request...WILDFIRE
.TAG 2416553.1/PDT
.DELDT 06/23/24
.FormatterVersion 2.0.0
.EMAIL david_winter@firenet.gov