238
FNUS76 KPDT 160045
FWSPDT

Spot Forecast for Welcome Station RX...USFS
National Weather Service Pendleton OR
545 PM PDT Wed May 15 2024

Forecast is based on ignition time of 0800 PDT on May 16.
***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.

.DISCUSSION...The ridge of high pressure controlling the region
will be ushered out by a strong low pressure system and cold front
to end the week. Look for gusty westerly winds, sometimes varying
from southwesterly to northwesterly, both Thursday and Friday. The
strongest part of this system will stay north of the region,
keeping precipitation chances nil at the site.

.THURSDAY...

Sky/weather.........Sunny (0-10 percent).
CWR.................0 percent.
LAL.................1.
Max temperature.....75-78.
Min humidity........21-26 percent.
Wind (20 ft)........Southwest winds 5 to 7 mph shifting to the
                    northwest 5 to 8 mph with gusts to around 17
                    mph late in the morning.
Ridgetop wind.......Southwest winds 5 to 10 mph shifting to the
northwest 6 to 12 mph with gusts to 20 mph
late in the morning.
Mixing height.......5400 ft AGL.
Transport winds.....West 6 to 13 mph increasing to around 16 mph
                    late in the afternoon.
Haines Index........3 to 4 or very low to low potential for large
                    plume dominated fire growth.

TIME (PDT)      8 AM   10 AM  NOON   2 PM   4 PM   6 PM
Temp............52     64     71     74     72     66
RH..............60     41     29     26     27     35
20 ft wind......SW 6   SW 6   NW 7   W 7    W 7    W 8
20 ft wind gust.              8      14     14     17

.THURSDAY NIGHT...

Sky/weather.........Mostly clear (10-20 percent).
CWR.................0 percent.
LAL.................1.
Min temperature.....39-42.
Max humidity........74-79 percent.
Wind (20 ft)........West winds 5 to 8 mph. Gusts up to 21 mph in
                    the evening.
Ridgetop wind.......West winds 6 to 12 mph with gusts to 25 mph
in the evening.
Mixing height.......1000 ft AGL.
Transport winds.....West 13 to 16 mph.
Haines Index........3 to 4 or very low to low potential for large
                    plume dominated fire growth.

.FRIDAY...

Sky/weather.........Sunny (0-10 percent).
CWR.................0 percent.
LAL.................1.
Max temperature.....62-65.
Min humidity........15-20 percent.
Wind (20 ft)........West winds 5 to 7 mph shifting to the northwest
                    5 to 17 mph late in the morning.
Ridgetop wind.......West winds 5 to 10 mph shifting to the northwest
10 to 20 mph late in the morning.
Mixing height.......6200 ft AGL.
Transport winds.....West around 14 mph shifting to the northwest
                    early in the morning.
Haines Index........3 to 4 or very low to low potential for large
                    plume dominated fire growth.

$$
Forecaster...Goatley
Requested by...Jessie Creech
Type of request...PRESCRIBED
.TAG 2414332.0/PDT
.DELDT 05/15/24
.FormatterVersion 2.0.0
.EMAIL jessie.creech@usda.gov