FNUS76 KPDT 061955 FWSPDT Spot Forecast for Range 73 RX...DOD National Weather Service Pendleton OR 1255 PM PDT Wed May 6 2026 Forecast is based on ignition time of 0800 PDT on May 07. ***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...Moderate (50-55%) overnight humidity recoveries Thursday morning will lead to a cooler and more dry day across the fire area. A weak and dissipating cold front will pass overnight into Friday morning, increasing cloud cover, further cooling high temperatures and slightly improving afternoon humidities on Friday. The front will stall as high pressure follows closely, increasing northwest winds mid-to late afternoon on Friday. .THURSDAY... Sky/weather.........Sunny (20-30 percent). CWR.................0 percent. Chance of lightning.0 percent. Max temperature.....79-82. Min humidity........12-17 percent. Wind (20 ft)........Light northwest winds 2 to 6 mph shifting to the west southwest around noon, then shifting to the north 5 to 10 mph after 1700. Ridgetop wind.......Light winds 3 to 7 mph shifting to the west southwest around noon, then shifting to the north 6 to 12 mph after 1700. Mixing height.......5600 ft AGL. Transport winds.....West 6 to 8 mph. Ventilation Index...Low (100) increasing to moderate (250) in the afternoon. TIME (PDT) 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM 6PM 7PM Chc of ltng (%).0 0 0 0 0 0 0 0 0 0 0 0 Temp............55 59 65 68 71 73 76 77 77 78 77 75 RH..............43 39 33 29 25 22 20 19 19 19 21 24 20 FT wind dir..E N N NW W W SW SW W NW N N 20 FT wind spd..3 3 5 2 3 5 5 5 5 5 7 9 20 FT wind gust. 9 8 8 8 8 9 10 14 .THURSDAY NIGHT... Sky/weather.........Partly cloudy (30-40 percent) then becoming mostly cloudy (75-85 percent) after 2000. CWR.................0 percent. Chance of lightning.0 percent. Min temperature.....49-52. Max humidity........42-47 percent. Wind (20 ft)........North winds 8 to 13 mph with gusts up to 20 mph after 1900, becoming 3 to 7 mph after 0200. Ridgetop wind.......North winds 10 to 15 mph with gusts up to 22 mph after 1900, becoming 4 to 8 mph after 0200. Mixing height.......500 ft AGL. Transport winds.....North 7 to 14 mph. Ventilation Index...Low (190) and decreasing (40) overnight. .FRIDAY... Sky/weather.........Mostly cloudy (70-80 percent) then becoming sunny (20-30 percent) after 1400. CWR.................0 percent. Chance of lightning.0 percent. Max temperature.....76-79. Min humidity........14-19 percent. Wind (20 ft)........Northwest winds 3 to 7 mph shifting to the west northwest 10 to 15 mph with gusts up to 23 mph after noon, peaking between 1600 and 1800. Ridgetop wind.......Northwest winds 4 to 8 mph shifting to the west northwest 12 to 17 mph with gusts up to 25 mph after noon, peaking between 1600 and 1800. Mixing height.......6600 ft AGL early in themorning. Transport winds.....Northwest around 9 mph shifting to the west 14 to 18 mph late in the morning. Ventilation Index...Low (60) increasing to high (670) in the afternoon. $$ Forecaster...Callihan Requested by...Jeremy Johnson Type of request...PRESCRIBED .TAG 2612959.0/PDT .DELDT 05/06/26 .FormatterVersion 2.0.0 .EMAIL jeremy.d.johnson151.civ@army.mil