117
FNUS76 KPDT 131642
FWSPDT

Spot Forecast for Jane RX...Burns Interagency Communications Center
National Weather Service Pendleton OR
942 AM PDT Sat Jul 13 2024

Forecast is based on ignition time of 1000 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 IN EFFECT UNTIL 8 PM PDT THIS EVENING...

...FIRE WEATHER WATCH IN EFFECT FROM SUNDAY MORNING THROUGH
SUNDAY EVENING...

.DISCUSSION...A very dry airmass combined with unstable conditions
will help promote extreme fire behavior both today and tomorrow. A
weather system passing through the region over the weekend will
also lead to an increase in winds, however confidence is on the
lower end (30-40%) as to whether or not gusts eclipse 15 mph at
the site this weekend. 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 (<20%) in storms occurring due to the dry atmosphere
in place.


.TODAY...

Sky/weather.........Sunny (10-20 percent). Haze and areas of smoke
                    in the afternoon.
CWR.................0 percent.
LAL.................1.
Max temperature.....96-99.
Min humidity........5-10 percent.
Wind (20 ft)........Light winds early, becoming Southwest at 6 to
                    12 mph by the afternoon. Shifting more West
                    by the late afternoon.
Ridgetop wind.......Southwest winds 7 to 14 mph, with gusts up
                    to 18 mph, especially along exposed ridgetops.
Mixing height.......13700 ft AGL by the afternoon.
Transport winds.....Southwest around 20 mph.
Haines Index........6 or high potential for large plume dominated
                    fire growth.

.TONIGHT...

Sky/weather.........Mostly cloudy (60-70 percent). Patchy smoke in
                    the evening.
CWR.................0 percent.
LAL.................1.
Min temperature.....64-67.
Max humidity........29-34 percent.
Wind (20 ft)........Northwest winds 5 to 10 mph.
Ridgetop wind.......West winds 8 to 14 mph early in the evening,
                    becoming Northwest around 5 to 10 mph overnight.
Mixing height.......12400 ft AGL early in the evening, becoming near-
                    surface overnight.
Transport winds.....West around 18 mph early in the evening,
                    becoming North-Northwest around 10 mph overnight.
Haines Index........6 or high potential for large plume dominated
                    fire growth.

.SUNDAY...

Sky/weather.........Partly sunny (50-60 percent). Haze in the
                    afternoon.
CWR.................0 percent.
LAL.................1.
Max temperature.....91-94.
Min humidity........8-13 percent.
Wind (20 ft)........West winds 6 to 12 mph.
Ridgetop wind.......West winds 7 to 14 mph.
Mixing height.......11200 ft AGL by the afternoon.
Transport winds.....West around 18 mph.
Haines Index........6 or high potential for large plume dominated
                    fire growth.

$$
Forecaster...Evans
Requested by...Lindsey Ward
Type of request...PRESCRIBED
.TAG 2417874.0/PDT
.DELDT 07/12/24
.FormatterVersion 2.0.0
.EMAIL orbic@firenet.gov