574
FNUS76 KPDT 032356
FWSPDT

Spot Forecast for South Fork...USDA Forest Service
National Weather Service Pendleton OR
456 PM PDT Wed Jul 3 2024

Forecast is based on forecast start time of 0600 PDT on July 04.
***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.

...HEAT ADVISORY IN EFFECT FROM NOON FRIDAY TO 10 PM PDT
TUESDAY...

.DISCUSSION...Not much to speak of weather-wise outside of the
upcoming heat wave that is expected to really ramp up around
Friday and last for as long as the next week. High pressure coming
in will allow ridgetop and low-level winds to shift more
easterly, while surface winds will remain terrain-driven.

.INDEPENDENCE DAY...

Sky/weather.........Sunny (0-5 percent).
CWR.................0 percent.
LAL.................1.
Max temperature.....79-82.
Min humidity........19-24 percent.
Wind (20 ft)........Upslope (East) winds 3 to 7 mph.
Ridgetop wind.......East winds 5 to 8 mph.
Mixing height.......6700 ft AGL by the afternoon.
Transport winds.....East winds around 5 mph.
Haines Index........4 or low potential for large plume dominated
                    fire growth.

.THURSDAY NIGHT...

Sky/weather.........Clear (0-10 percent).
CWR.................0 percent.
LAL.................1.
Min temperature.....59-62.
Max humidity........43-48 percent.
Wind (20 ft)........Downslope (West) winds 3 to 7 mph.
Ridgetop wind.......East winds 5 to 7 mph.
Mixing height.......5000 ft AGL early in the evening, then near-
                    surface overnight.
Transport winds.....Northwest around 6 mph.
Haines Index........4 or low potential for large plume dominated
                    fire growth.

.FRIDAY...

Sky/weather.........Sunny (0-5 percent).
CWR.................0 percent.
LAL.................1.
Max temperature.....86-89.
Min humidity........14-19 percent.
Wind (20 ft)........Upslope (East) winds 3 to 7 mph.
Ridgetop wind.......East winds 5 to 8 mph.
Mixing height.......7600 ft AGL by the afternoon.
Transport winds.....West around 6 mph.
Haines Index........5 or moderate potential for large plume
                    dominated fire growth.

$$
Forecaster...Evans
Requested by...Joshua James
Type of request...WILDFIRE
.TAG 2417149.11/PDT
.DELDT 07/02/24
.FormatterVersion 2.0.0
.EMAIL joshua.james@usda.gov