926
FNUS76 KPDT 240004
FWSPDT

Spot Forecast for Puderbaugh 502 Rx...USFS
National Weather Service Pendleton OR
504 PM PDT Mon Sep 23 2024

Forecast is based on ignition time of 0800 PDT on September 24.
***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...High pressure will continue to build over the
region through Tuesday, resulting in a warming and drying trend
that will persist into Wednesday. A cold front and upper low
passage across the region will result in southerly winds
increasing Wednesday. Strongest winds are expected after 12/1PM
in the afternoon with cold front approach to the fire area. A
slight chance (15-20%) of rain showers will be possible late
Wednesday evening.

.TUESDAY...

Sky/weather.........Sunny (5-15 percent).
CWR.................0 percent.
LAL.................1.
Max temperature.....74-77.
Min humidity........27-32 percent.
Wind (20 ft)........South winds 5 to 10 mph increasing to
9 to 14 mph after 11AM.
Ridgetop wind.......South winds 5 to 10 mph increasing to
10 to 15 mph after 11AM.
Mixing height.......3400 ft AGL.
Transport winds.....South 9 to 17 mph increasing to 15 to 20 mph
                    late in the afternoon.
Haines Index........2 or very low potential for large plume
                    dominated fire growth.

TIME (PDT)      8 AM   10 AM  NOON   2 PM   4 PM   6 PM
Temp............53     63     69     73     73     70
RH..............66     49     41     35     32     36
20 ft wind......S 8    S 8    S 10   S 12   S 12   S 12
20 ft wind gust.                     18     18     17

.TUESDAY NIGHT...

Sky/weather.........Mostly clear (5-15 percent).
CWR.................0 percent.
LAL.................1.
Min temperature.....53-56.
Max humidity........51-56 percent.
Wind (20 ft)........South winds 7 to 12 mph.
Ridgetop wind.......South winds 7 to 12 mph.
Mixing height.......1200 ft AGL early in the evening.
Transport winds.....South 10 to 15 mph.
Haines Index........2 or very low potential for large plume
                    dominated fire growth.

.WEDNESDAY...

Sky/weather.........Sunny (20-30 percent).
CWR.................0 percent.
LAL.................1.
Max temperature.....76-79.
Min humidity........19-24 percent.
Wind (20 ft)........South winds 6 to 12 mph increasing to
10 to 18 mph after 1PM. Gusts up to 29 mph.
Ridgetop wind.......South winds 7 to 12 mph increasing to
12 to 21 mph after 1PM. Gusts up to 32 mph.
Mixing height.......7700 ft AGL late in the morning.
Transport winds.....South 10 to 16 mph increasing to southwest 24
                    to 28 mph late in the afternoon.
Haines Index........2 to 4 or very low to low potential for large
                    plume dominated fire growth.

$$
Forecaster...Lawhorn
Requested by...Todd Pederson
Type of request...PRESCRIBED
.TAG 2422933.0/PDT
.DELDT 09/23/24
.FormatterVersion 2.0.0
.EMAIL todd.pederson@usda.gov