Spot Forecast
Issued by NWS Medford, OR
Issued by NWS Medford, OR
794 FNUS76 KMFR 271647 FWSMFR Spot Forecast for Sumpter Fire...Forest Service National Weather Service MEDFORD OR 947 AM PDT Wed Aug 27 2025 Forecast is based on forecast start time of 1000 PDT on August 27. If conditions become unrepresentative...contact the National Weather Service. ...RED FLAG WARNING IN EFFECT FROM 1 PM THIS AFTERNOON TO 9 PM PDT THIS EVENING FOR ABUNDANT LIGHTNING ON DRY FUELS... .DISCUSSION...Warm temperatures continue through the week. Isolated to scattered thunderstorms are expected over and in the vicinity of the incident this afternoon. Besides lightning, gusty outflow winds, small hail, and locally heavy rainfall may be possible with any storms. Warm and dry conditions are expected Thursday and Friday, then slightly cooler, but dry and breezy conditions are expected this weekend. .REST OF TODAY... Sky/weather.........Mostly sunny. Chance of thunderstorms (20-25%) in the afternoon. Chance of lightning.25 percent. Max temperature.....Around 76. Min humidity........30-35 percent. Eye level winds.....West 3-5 mph. Wind (20 ft)........West 5- 10 mph. Gusty and erratic winds expected near thunderstorms in the afternoon. Mixing height.......8200 ft AGL. Transport winds.....West 7 to 16 mph. CWR.................15 percent. TIME (PDT) 10A 11A 12P 1PM 2PM 3PM 4PM 5PM Sky cover.......CLR PC PC PC MC MC MC PC Weather cov..... SCH SCH SCH SCH SCH SCH SCH Weather type.... RW RW RW RW RW RW RW Tstm cov........ SCH SCH SCH CH CH CH CH CWR.............0 0 0 0 0 0 0 10 Chc of ltng (%).0 20 20 20 25 25 25 25 Temp............70 72 73 73 75 75 76 75 RH..............48 40 39 37 33 31 29 29 20 FT wind dir..S W W W W W W W 20 FT wind spd..3 6 6 6 8 8 8 9 20 FT wind gust.6 8 8 8 13 13 13 14 Eye lvl wnd dir.S W W W W W W W Eye lvl wnd spd.1 2 2 2 3 3 3 3 Eye lvl wnd gst.2 3 3 3 5 5 5 5 Mix hgt (kft)...3.6 7.4 7.4 7.4 8.2 8.2 8.2 7.1 Transp wind dir.SW W W W W W W W Transp wind spd.7 14 14 14 16 16 16 14 .TONIGHT... Sky/weather.........Mostly clear. Chance of lightning.5 percent. Min temperature.....Around 58. Max humidity........55-60 percent. Eye level winds.....East to southeast 1-2 mph. Wind (20 ft)........East to southeast 4-5 mph. Mixing height.......0 ft AGL. Transport winds.....Southeast 6 to 7 mph. CWR.................0 percent. TIME (PDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM Sky cover.......PC PC PC PC PC MCR CLR CLR CLR CLR CLR CLR Weather cov.....SCH SCH SCH SCH SCH Weather type....RW RW RW RW RW Tstm cov........SCH SCH CWR.............10 10 10 10 10 10 10 10 10 10 10 0 Chc of ltng (%).20 20 0 0 0 0 0 0 0 0 0 0 Temp............74 72 68 65 64 63 62 61 61 60 60 59 RH..............33 37 45 51 54 55 54 56 56 58 57 60 20 FT wind dir..W W W W W SE SE SE SE SE SE SE 20 FT wind spd..9 9 5 5 5 4 4 4 5 5 5 6 20 FT wind gust.14 14 7 7 7 6 6 6 7 7 7 8 Eye lvl wnd dir.W W W W W SE SE SE SE SE SE SE Eye lvl wnd spd.3 3 2 2 2 1 1 1 2 2 2 2 Eye lvl wnd gst.5 5 3 3 3 2 2 2 3 3 3 3 Mix hgt (kft)...7.1 7.1 0.5 0.5 0.5 0.1 0.1 0.1 0.1 0.1 0.1 0.1 Transp wind dir.W W NW NW NW NE NE NE SE SE SE SE Transp wind spd.14 14 8 8 8 1 1 1 6 6 6 7 .THURSDAY... Sky/weather.........Sunny. Chance of lightning.3 percent. Max temperature.....Around 78. Min humidity........20-25 percent. Eye level winds.....South to southeast 1-3 mph in the morning, becoming west to southwest 2-4 mph in the afternoon. Wind (20 ft)........South to southeast 3-5 mph in the morning, becoming west to southwest 6-10 mph in the afternoon. Mixing height.......8400 ft AGL. Transport winds.....South to southwest 7 to 14 mph. CWR.................0 percent. TIME (PDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM Sky cover.......MCR MCR CLR CLR CLR CLR CLR CLR CLR CLR CLR CLR Weather cov..... Weather type.... Tstm cov........ CWR.............0 0 0 0 0 0 0 0 0 0 0 0 Chc of ltng (%).0 0 0 0 0 0 0 0 0 0 0 0 Temp............58 59 64 68 71 74 75 76 76 77 77 77 RH..............61 60 49 40 33 28 25 23 22 20 19 20 20 FT wind dir..SE SE SE SE SE SW SW SW W W W W 20 FT wind spd..6 6 6 6 6 6 6 6 7 7 7 7 20 FT wind gust.8 8 8 8 8 8 8 8 11 11 11 11 Eye lvl wnd dir.SE SE SE SE SE SW SW SW W W W W Eye lvl wnd spd.2 2 2 2 2 2 2 2 3 3 3 3 Eye lvl wnd gst.3 3 3 3 3 3 3 3 4 4 4 4 Mix hgt (kft)...0.1 0.1 2.0 2.0 2.0 4.6 4.6 4.6 8.4 8.4 8.4 6.4 Transp wind dir.SE SE S S S S S S SW SW SW W Transp wind spd.7 7 12 12 12 14 14 14 12 12 12 9 $$ Forecaster...NIEUWENHUIS Requested by...Daisha Roberts Type of request...WILDFIRE .TAG 2520824.0/MFR .DELDT 08/27/25 .FormatterVersion 2.0.0 .EMAIL Orrvc@firenet.gov