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000
FNUS76 KPDT 211509
FWSPDT

Spot Forecast for Orion 5...USFS
National Weather Service Pendleton OR
809 AM PDT Sun Apr 21 2024

Forecast is based on ignition time of 1000 PDT on April 21.
***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...Last night`s system continues to move out of the
area today with clearing skies and gradually decreasing winds
today. Much cooler temperatures and higher humidities today. Clear
skies tonight with light winds and this will continue on Monday
with a warming trend through Tuesday. Next chance of rain looks
to be Thursday night.

.REST OF TODAY...

Sky/weather.........Mostly sunny (40-50 percent).
CWR.................1 percent.
LAL.................1.
Max temperature.....47-50.
Min humidity........40-45 percent.
Wind (20 ft)........West winds 8 to 16 mph.
Ridgetop wind.......West winds 11 to 20 mph.
Mixing height.......3000 ft AGL rising to 4600 ft AGL in the
                    afternoon.
Transport winds.....West winds 18 to 21 mph.
Haines Index........2 to 3 or very low potential for large plume
                    dominated fire growth.

TIME (PDT)      10A 11A 12P 1PM 2PM 3PM 4PM 5PM 6PM 7PM 8PM 9PM
Temp............40  44  45  48  48  48  48  46  45  42  39  36
RH..............62  55  53  48  46  45  46  51  55  63  70  74
20 FT wind dir..W   W   W   W   W   W   W   W   W   W   W   W
20 FT wind spd..13  13  13  13  14  14  14  13  13  13  10  10
20 FT wind gust.14  14  14  14  18  18  18  14  14  14  11  11

.TONIGHT...

Sky/weather.........Mostly clear (10-20 percent).
CWR.................0 percent.
LAL.................1.
Min temperature.....27-31.
Max humidity........76-81 percent.
Wind (20 ft)........West to southwest winds 5 to 12 mph shifting to
                    the north 3 to 7 mph early in the morning.
Ridgetop wind.......West to southwest winds 9 to 17 mph shifting to
                    the north 6 to 11 mph early in the morning.
Mixing height.......3500 ft AGL becoming near surface during the
                    evening.
Transport winds.....West winds 10 to 17 mph becoming north to
                    northwest 5 to 10 mph early in the morning.
Haines Index........3 to 4 or very low to low potential for large
                    plume dominated fire growth.

.MONDAY...

Sky/weather.........Sunny (0-10 percent).
CWR.................0 percent.
LAL.................1.
Max temperature.....53-57.
Min humidity........24-29 percent.
Wind (20 ft)........Northeast winds 5 to 8 mph shifting to the east
                    late in the morning.
Ridgetop wind.......Northeast winds 7 to 11 mph shifting to the
                    east late in the morning.
Mixing height.......Near surface rising to 4500 ft AGL in the
                    afternoon.
Transport winds.....Northeast 5 to 8 mph shifting to the east 6 to
                    9 mph late in the morning.
Haines Index........3 to 4 or very low to low potential for large
                    plume dominated fire growth.

$$
Forecaster...Perry
Requested by...Mike Starkovich
Type of request...PRESCRIBED
.TAG 2411547.0/PDT
.DELDT 04/21/24
.FormatterVersion 2.0.0
.EMAIL michael.starkovich@usda.gov