315
FNUS76 KPDT 132223
FWSPDT

Spot Forecast for Upper Pine...USFS
National Weather Service Pendleton OR
323 PM PDT Sat Jul 13 2024

Forecast is based on forecast start time of 1800 MDT on July 13.
***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 FOR HOT, DRY, AND UNSTABLE CONDITIONS IN EFFECT
UNTIL 11 PM PDT SUNDAY...

...HEAT ADVISORY IN EFFECT UNTIL 11 PM PDT THIS EVENING...

.DISCUSSION...A very dry airmass combined with unstable conditions
will help promote extreme fire behavior both today and tomorrow.
Locally breezy conditions will be possible in the afternoons.
There is also a slight chance of an isolated thunderstorm developing
near the site late Sunday afternoon due to this oncoming weather system,
however confidence is very low (<15%) in storms occurring due to the
dry atmosphere in place.

.TONIGHT...

Sky/weather.........Partly cloudy (35-45 percent) then becoming
                    mostly cloudy (60-70 percent) then becoming
                    partly cloudy (45-55 percent). Smoke in the
                    evening, then areas of smoke late in the
                    evening.
CWR.................1 percent.
LAL.................1.
Min temperature.....64-67.
Max humidity........26-31 percent.
Wind (20 ft)........West winds 5 to 8 mph with gusts to around 17
                    mph in the evening becoming light, then
                    becoming west 5 to 7 mph overnight. Gusty and
                    erratic winds expected near thunderstorms in
                    the evening.
Ridgetop wind.......West winds 7 to 12 mph with gusts to around 20
mph.
Mixing height.......14100 ft AGL early in the evening.
Transport winds.....West around 22 mph decreasing to around 8 mph
                    in the late evening and overnight.
Haines Index........5 or moderate potential for large plume
                    dominated fire growth.

TIME (MDT)      7 PM   9 PM   11 PM  1 AM   3 AM   5 AM
Temp............94     86     76     72     70     68
RH..............13     16     23     26     27     29
20 ft wind......W 8    W 5    W 5    W 4    W 5    W 5
20 ft wind gust.17     13     13     6      6      6

.SUNDAY...

Sky/weather.........Partly sunny (50-60 percent). Areas of smoke,
                    then smoke late in the afternoon.
CWR.................6 percent.
LAL.................1.
Max temperature.....91-94.
Min humidity........8-13 percent.
Wind (20 ft)........West winds 5 to 8 mph. Gusts up to 20 mph late
                    in the afternoon. Gusty and erratic winds
                    expected near thunderstorms late in the
                    afternoon.
Ridgetop wind.......West winds 7 to 12 mph with gusts between 20 to
25 mph in the afternoon.
Mixing height.......12500 ft AGL in the late morning and afternoon.
Transport winds.....West 8 to 17 mph.
Haines Index........4 to 5 or low to moderate potential for large
                    plume dominated fire growth.

.SUNDAY NIGHT...

Sky/weather.........Partly cloudy (30-40 percent). Smoke in the
                    evening, then areas of smoke late in the
                    evening.
CWR.................6 percent.
LAL.................1.
Min temperature.....Around 60.
Max humidity........35-40 percent.
Wind (20 ft)........West winds 5 to 8 mph becoming 5 to 7 mph late
                    in the evening. Gusty and erratic winds
                    expected near thunderstorms in the evening.
Ridgetop wind.......West winds 5 to 10 mph.
Mixing height.......12500 ft AGL early in the evening.
Transport winds.....West 8 to 17 mph.
Haines Index........4 or low potential for large plume dominated
                    fire growth.

.MONDAY...

Sky/weather.........Sunny (15-25 percent). Areas of smoke.
CWR.................1 percent.
LAL.................1 until 1700.
Max temperature.....Around 90.
Min humidity........8-13 percent.
Wind (20 ft)........West winds 5 to 8 mph. Gusts up to 20 mph late
                    in the afternoon.
Ridgetop wind.......West winds 7 to 12 mph with gusts 20 to 25 mph
in the afternoon.
Mixing height.......11400 ft AGL in the late morning and afternoon.
Transport winds.....West 8 to 13 mph.
Haines Index........4 or low potential for large plume dominated
                    fire growth.

$$
Forecaster...Lawhorn
Requested by...Scott MacDonald, FBAN NW 8
Type of request...WILDFIRE
.TAG 2417901.2/PDT
.DELDT 07/12/24
.FormatterVersion 2.0.0
.EMAIL ebb-6241@charter.net