465
FNUS76 KPDT 291132
FWSPDT

Spot Forecast for HWY20 RX units 62,63,80...USFS
National Weather Service Pendleton OR
432 AM PDT Wed May 29 2024

Forecast is based on ignition time of 0600 PDT on May 29.
***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...An upper level trough will remain in place over the region
this morning bringing chances of rain showers early this morning (20%).
Westerly winds will prevail with sustained winds 10-20 mph with gusts to
25 mph this morning (<20%). Winds will remain elevated through the
evening before decreasing tomorrow. Daytime RHs will be moderate
with excellent overnight recoveries. An upper level ridge will move in
overnight bringing decreased winds, warmer temperatures and poor daytime
RHs.

.TODAY...

Sky/weather.........Mostly sunny (20-30 percent). Slight chance of
                    thunderstorms and isolated rain showers early
                    in the morning.
CWR.................0 percent.
LAL.................1.
Max temperature.....59-62.
Min humidity........30-35 percent.
Wind (20 ft)........West winds 5 to 10 mph. Gusts up to 25 mph late
                    in the morning. Gusty and erratic winds
                    expected near thunderstorms early in the
                    morning.
Mixing height.......4700 ft AGL.
Transport winds.....West 13 to 21 mph.
Haines Index........2 to 4 or very low to low potential for large
                    plume dominated fire growth.

TIME (PDT)      6 AM   8 AM   10 AM  NOON   2 PM   4 PM
Temp............36     42     50     56     57     57
RH..............84     71     55     44     40     39
20 ft wind......W 5    W 6    W 6    W 8    W 10   W 10
20 ft wind gust.7      12     12     16     18     18

.TONIGHT...

Sky/weather.........Mostly clear (15-25 percent).
CWR.................0 percent.
LAL.................1.
Min temperature.....30-33.
Max humidity........83-88 percent.
Wind (20 ft)........Northwest winds 5 to 10 mph with gusts to around
                    20 mph in the evening becoming light.
Mixing height.......500 ft AGL.
Transport winds.....West 16 to 21 mph decreasing to 5 to 9 mph late
                    in the evening.
Haines Index........2 or very low potential for large plume
                    dominated fire growth.

.THURSDAY...

Sky/weather.........Sunny (5-15 percent).
CWR.................0 percent.
LAL.................1.
Max temperature.....70-73.
Min humidity........22-27 percent.
Wind (20 ft)........Light winds becoming northwest 5 to 7 mph late
                    in the afternoon.
Mixing height.......6100 ft AGL.
Transport winds.....West around 5 mph early in the morning becoming
                    light, then becoming northwest 6 to 9 mph late
                    in the morning.
Haines Index........2 or very low potential for large plume
                    dominated fire growth.

$$
Forecaster...Bennese
Requested by...Burn boss Trainee
Type of request...PRESCRIBED
.TAG 2415239.0/PDT
.DELDT 05/29/24
.FormatterVersion 2.0.0
.EMAIL Tj.whitehall@usda.gov