@ FNUS76 KSTO 191400 FWSSTO Spot Forecast for Gurnsey RX...USFS National Weather Service Sacramento CA 700 AM PDT Tue May 19 2026 Forecast is based on ignition time of 0900 PDT on May 19. If conditions become unrepresentative...contact the National Weather Service. .DISCUSSION... Dry weather prevails through the week alongside a gradual warming trend. Daytime minimum humidity into the teens to low 20s is expected with modest overnight humidity recovery. Winds look to follow diurnal trends with increasing west-southwest winds in the afternoon becoming light and terrain driven in the evening and overnight hours. No precipitation is anticipated during the forecast period at this time. .REST OF TODAY... Sky/weather.........Sunny. Max temperature.....69-74. Min humidity........15-20 percent. Wind (20 ft)........ Slope/valley.......Light winds becoming south 4 to 6 mph early in the afternoon, then shifting to the west late in the afternoon. Ridgetop...........North 3 to 6 mph shifting to the northwest 3 to 9 mph late in the afternoon. Mixing height.......Rising to around 8700 ft AGL. Transport winds.....Northeast 7 to 9 mph shifting to the northwest 7 to 8 mph late in the afternoon. Chance of thunder...0 percent. TIME (PDT) 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM Sky cover.......CLR CLR CLR CLR CLR CLR CLR CLR MCR Chc of thdr (%).0 0 0 0 0 0 0 0 0 Temp............50 59 63 65 67 69 70 70 71 RH..............29 22 19 18 17 17 17 17 17 SL/VL wind dir..E E E SE SE S S W W SL/VL wind spd..2 2 3 3 5 5 5 5 5 SL/VL wind gust.7 7 8 8 9 9 10 10 10 Ridge wind dir..NE N N N N NW NW NW N Ridge wind spd..6 5 5 3 3 3 5 7 9 Mix hgt (kft)...4.1 4.1 7.7 7.7 7.7 8.7 8.7 8.7 6.5 Transp wind dir.E E NE NE NE N N N NW Transp wind spd.9 9 7 7 7 7 7 7 8 .TONIGHT... Sky/weather.........Mostly clear. Min temperature.....35-40. Max humidity........52-57 percent. Wind (20 ft)........ Slope/valley.......West winds up to 5 mph early in the evening becoming light. Ridgetop...........North 5 to 10 mph shifting to the west 7 to 13 mph overnight. Mixing height.......Falling to around 400 ft AGL. Transport winds.....Northwest 7 to 8 mph shifting to the northeast late in the evening. Chance of thunder...0 percent. TIME (PDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM Sky cover.......MCR CLR CLR MCR MCR CLR MCR PC MCR PC PC PC Chc of thdr (%).0 0 0 0 0 0 0 0 0 0 0 0 Temp............70 69 64 56 52 49 46 45 44 42 41 42 RH..............17 20 30 37 43 47 52 53 53 55 55 55 SL/VL wind dir..W W W NW N N NE NE NE NE NE NE SL/VL wind spd..5 2 1 1 1 2 2 1 1 1 1 1 SL/VL wind gust.8 6 3 5 5 6 5 5 5 5 5 3 Ridge wind dir..N N N N N N NW NW W W W W Ridge wind spd..10 9 9 8 8 7 6 5 5 7 10 13 Mix hgt (kft)...6.5 6.5 0.5 0.5 0.5 0.4 0.4 0.4 0.5 0.5 0.5 0.4 Transp wind dir.NW NW N N N N N N NE NE NE NE Transp wind spd.8 8 7 7 7 8 8 8 7 7 7 7 .WEDNESDAY... Sky/weather.........Sunny. Max temperature.....70-75. Min humidity........20-25 percent. Wind (20 ft)........ Slope/valley.......Light winds becoming southwest up to 7 mph late in the morning. Ridgetop...........West 6 to 14 mph. Mixing height.......Rising to around 8400 ft AGL. Transport winds.....Northeast around 7 mph shifting to the southwest 3to 9 mph early in the morning, then shifting to the west around 9 mph late in the afternoon. Chance of thunder...0 percent. TIME (PDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM Sky cover.......PC PC MCR MCR MCR MCR MCR MCR MCR MCR MCR MCR Chc of thdr (%).0 0 0 0 0 0 0 0 0 0 0 0 Temp............39 41 46 53 64 67 70 71 73 73 73 73 RH..............55 55 49 36 28 23 23 22 22 22 22 22 SL/VL wind dir..NE NE SE SE SE SW SW SW W W W W SL/VL wind spd..1 1 1 1 1 5 5 5 7 7 7 6 SL/VL wind gust.3 3 7 7 7 10 10 10 14 14 14 14 Ridge wind dir..W W W W W W W W W W W W Ridge wind spd..14 14 14 13 10 8 7 6 6 6 6 6 Mix hgt (kft)...0.4 0.4 3.0 3.0 3.0 7.8 7.8 7.8 8.4 8.4 8.4 6.7 Transp wind dir.NE NE S S S W W W W W W W Transp wind spd.7 7 3 3 3 8 8 8 9 9 9 9 $$ Forecaster...NR Requested by...John Outland Type of request...PRESCRIBED .TAG 2614021.0/STO .DELDT 05/19/26 .FormatterVersion 2.0.0 .EMAIL john.outland@usda.gov