Spot Forecast
Issued by NWS Pendleton, OR
Issued by NWS Pendleton, OR
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FNUS76 KPDT 031246
FWSPDT
Spot Forecast for Conboy NW HQ...USFWS
National Weather Service Pendleton OR
546 AM PDT Sun May 3 2026
Forecast is based on ignition time of 0700 PDT on May 03.
***Thunderstorms imply gusty and erratic winds ***
***Winds are 20 foot 10-minute averages ***
***CWR: Chance of wetting rain 0.10 or greater ***
***Ventilation Index is derived from transport wind
multiplied by the mixing height in 100`s of ft.
Categories are a generalized indicator only:
low (< 200), moderate (200-500), high (500-700),
and very high (> 700). ***
If you have questions or concerns with this forecast, please
contact our office at (541) 276-8134.
.DISCUSSION...Good (55-65 percent) overnight humidity recoveries
this morning will lead to a warmer (+3) and drier (-2%) day across
the fire area. Winds will increase out of the northeast this
morning under sunny skies. Humidities will improve slightly (+5)
on Monday with increasing afternoon winds as a slow moving front
approaches from the east. Mixing heights also increase slightly
due to the front`s presence.
.REST OF TODAY...
Sky/weather.........Sunny (0-10 percent).
CWR.................0 percent.
Max temperature.....82-85.
Min humidity........23-28 percent.
Wind (20 ft)........Light winds becoming northeast 5 to 10 mph
with gusts up to 15 mph after 0900, then
becoming 2 to 6 mph after 1400.
Mixing height.......7700 ft AGL.
Transport winds.....Northeast 5 to 10 mph.
Ventilation Index...Low (120) increasing to moderate (480) in the
afternoon.
TIME (PDT) 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM 6PM
Temp............53 57 61 68 74 78 79 81 82 81 81 80
RH..............59 59 55 46 38 33 31 29 28 28 28 30
20 FT wind dir..E NE NE NE NE E E NE NE N NE NE
20 FT wind spd..2 2 9 10 10 8 5 3 2 2 2 4
20 FT wind gust. 13 14 14 12 8
.TONIGHT...
Sky/weather.........Mostly clear (5-15 percent).
CWR.................0 percent.
Min temperature.....53-56.
Max humidity........56-61 percent.
Wind (20 ft)........Northeast winds 2 to 6 mph shifting to the
north around 2200.
Mixing height.......900 ft AGL.
Transport winds.....North 5 to 7 mph.
Ventilation Index...Low (100) and staying low (50) overnight.
.MONDAY...
Sky/weather.........Sunny (5-15 percent).
CWR.................0 percent.
Max temperature.....81-84.
Min humidity........28-33 percent.
Wind (20 ft)........Northeast winds 2 to 7 mph shifting to the west
6 to 12 mph with gusts up to 20 mph after 1300,
peaking between 1400 and 1800.
Mixing height.......7900 ft AGL.
Transport winds.....North 5 to 8 mph shifting to the northwest
around 12 mph late in the afternoon.
Ventilation Index...Low (50) increasing to moderate (300) in the
afternoon.
$$
Forecaster...Callihan
Requested by...Cory Thompson
Type of request...PRESCRIBED
.TAG 2612537.0/PDT
.DELDT 05/03/26
.FormatterVersion 2.0.0
.EMAIL cory_thompson@fws.gov