FNUS76 KPDT 190412 FWSPDT Spot Forecast for SAFR 9/78 RX...USFS National Weather Service Pendleton OR 912 PM PDT Wed Mar 18 2026 Forecast is based on ignition time of 0700 PDT on March 19. ***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 the transport wind multiplied by the mixing height in 100's of feet. Index categories are a generalized indicator only.*** If you have questions or concerns with this forecast, please contact our office at (541) 276-8134. .DISCUSSION...Moderate (45-55 percent) overnight humidity recoveries Thursday morning as another dry day is ahead as afternoon humidities could dip back into the single digits. Afternoon winds will be breezy Thursday, but more enhanced Friday in association with a passing cold front. This front could also bring light rain to the fire area, but chances of measurable rain amounts is minimal (<20 percent chance). Afternoon humidities will improve on Friday. .THURSDAY... Sky/weather.........Mostly sunny (40-50 percent) then becoming partly sunny (60-70 percent). CWR.................0 percent. Chance of lightning.0 percent. Max temperature.....68-72. Min humidity........8-13 percent. Wind (20 ft)........Light winds becoming southwest 5 to 10 mph with gusts to around 15 mph after 1300. Ridgetop wind.......Southwest 5 to 10 mph increasing to 15 to 20 mph in the afternoon. Mixing height.......6000 ft AGL. Transport winds.....Southwest around 9 mph increasing to west 20 to 26 mph late in the morning, then decreasing to around 16 mph late in the afternoon. Ventilation Index...Poor (80) increasing to excellent (990) in the afternoon. TIME (PDT) 7 AM 9 AM 11 AM 1 PM 3 PM 5 PM Chc of ltng (%).0 0 0 0 0 0 Temp............46 51 64 71 72 71 RH..............48 30 18 11 9 12 20 ft wind......SW 4 S 4 SW 5 SW 5 W 8 W 7 20 ft wind gust. 5 12 12 16 14 .THURSDAY NIGHT... Sky/weather.........Mostly cloudy (50-60 percent) then becoming partly cloudy (35-45 percent). CWR.................0 percent. Chance of lightning.0 percent. Min temperature.....45-48. Max humidity........59-64 percent. Wind (20 ft)........West winds 5 to 10 mph early in the evening becoming light. Ridgetop wind.......Southwest winds 15 to 20 mph. Mixing height.......3400 ft AGL early in the evening then 500 ft AGL late in the evening. Transport winds.....West 9 to 16 mph. Ventilation Index...Fair (210) decreasing to poor (40) overnight. .FRIDAY... Sky/weather.........Mostly sunny (35-45 percent). Chance of rain (40 percent) late in the afternoon and evening. CWR.................0 percent. Chance of lightning.0 percent. Max temperature.....70-73. Min humidity........37-42 percent. Wind (20 ft)........Light winds becoming west 5 to 10 mph with gusts to around 25 mph after noon. Ridgetop wind.......Southwest winds 15 to 20 mph becoming west in the afternoon. Mixing height.......5700 ft AGL. Transport winds.....Southwest 8 to 15 mph increasing to west 24 to 28 mph late in the afternoon. Ventilation Index...Poor (40) increasing to excellent (820) in the afternoon. $$ Forecaster...Callihan Requested by...Jeremy Gottfried Type of request...PRESCRIBED .TAG 2606205.1/PDT .DELDT 03/18/26 .FormatterVersion 2.0.0 .EMAIL jeremy.gottfried@usda.gov