925
FNUS76 KPDT 130042
FWSPDT

Spot Forecast for Falls Fire...USFS
National Weather Service Pendleton OR
542 PM PDT Fri Jul 12 2024

Forecast is based on forecast start time of 1900 MDT on July 12.
***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.

...FIRE WEATHER WATCH IN EFFECT FROM SATURDAY AFTERNOON THROUGH
SUNDAY EVENING...

.DISCUSSION...Hot, dry, and unstable conditions will persist over the
site through the weekend. Overnight RH recovery is anticipated to be
poor along ridgetops, and moderate in valleys/drainages. A deep boundary
layer will develop each day, facilitating gusty west-southwest winds.
Isolated high-based showers or thunderstorms have a low chance (15%) of
developing each afternoon. Any showers or thunderstorms that develop
will be capable of producing erratic, gusty outflow winds.

.TONIGHT...

Sky/weather.........Mostly clear (5-15 percent). Haze and areas of
                    smoke.
CWR.................0 percent.
LAL.................1.
Min temperature.....57-60.
Max humidity........29-34 percent.
Wind (20 ft)........Becoming northwest 5-8 mph with gusts of 15-20 mph
                    this evening. Downslope, downvalley 2-4 mph after
                    midnight.
Ridgetop wind.......Becoming northwest 5-8 mph with gusts of 15-20 mph
                    this evening. Downslope, downvalley 2-4 mph after
                    midnight.
Mixing height.......Decreasing to 500-800 ft AGL overnight.
Transport winds.....North around 10 mph.
Haines Index........6 or high potential for large plume dominated
                    fire growth.

.SATURDAY...

Sky/weather.........Sunny (5-15 percent). Haze and areas of smoke
                    through the day. Slight chance of showers and
                    thunderstorms in the afternoon.
CWR.................0 percent.
LAL.................2.
Max temperature.....96-99.
Min humidity........6-11 percent.
Wind (20 ft)........Becoming southwest 4-9 mph in the morning,
                    increasing to 9-14 mph gusting 15-25 mph in
                    the afternoon. Any isolated thunderstorms that
                    develop in the afternoon will be capable of
                    producing erratic, gusty outflow winds.
Ridgetop wind.......Becoming southwest 5-10 mph in the morning,
                    increasing to 11-16 mph gusting 20-30 mph in
                    the afternoon. Any isolated thunderstorms that
                    develop in the afternoon will be capable of
                    producing erratic, gusty outflow winds.
Mixing height.......Increasing to 14000-15000 ft AGL by afternoon.
Transport winds.....Southwest around 22 mph.
Haines Index........6 or high potential for large plume dominated
                    fire growth.

.SATURDAY NIGHT...

Sky/weather.........Partly cloudy (35-45 percent) then becoming
                    mostly cloudy (50-60 percent). Slight chance of
                    showers and thunderstorms in the evening. Areas
                    of smoke in the evening. Haze through the
                    night. Patchy smoke overnight.
CWR.................0 percent.
LAL.................2.
Min temperature.....59-62.
Max humidity........30-35 percent.
Wind (20 ft)........Northwest winds 5-10 mph, gusting to 15 mph
                    in the evening. Any isolated thunderstorms will
                    be capable of producing erratic, gusty outflow winds.
Ridgetop wind.......Northwest winds 5-10 mph, gusting to 15 mph
                    in the evening. Any isolated thunderstorms will
                    be capable of producing erratic, gusty outflow winds.
Mixing height.......Decreasing to 600-800 ft AGL overnight
Transport winds.....North around 12 mph.
Haines Index........6 or high potential for large plume dominated
                    fire growth.

.SUNDAY...

Sky/weather.........Mostly sunny (45-55 percent). Haze in the
                    morning. Slight chance of showers and
                    thunderstorms in the afternoon.
CWR.................0 percent.
LAL.................1.
Max temperature.....91-94.
Min humidity........8-13 percent.
Wind (20 ft)........Light winds becoming west 5-10 mph, gusting to
                    15 mph in the afternoon. Any isolated thunderstorms
                    will be capable of producing erratic, gusty outflow winds.
Ridgetop wind.......Light winds becoming west 5-10 mph, gusting to
                    15 mph in the afternoon. Any isolated thunderstorms
                    will be capable of producing erratic, gusty outflow winds.
Mixing height.......Increasing to 11500-12500 ft AGL by afternoon.
Transport winds.....West around 17 mph.
Haines Index........6 or high potential for large plume dominated
                    fire growth.

$$
Forecaster...Plunkett
Requested by...Scott MacDonald
Type of request...WILDFIRE
.TAG 2417911.0/PDT
.DELDT 07/12/24
.FormatterVersion 2.0.0
.EMAIL ebb-6241@charter.net