Spot Forecast
Issued by NWS San Diego, CA
Issued by NWS San Diego, CA
497 FNUS76 KSGX 272042 FWSSGX Spot Forecast for Grass Valley...Forest Service National Weather Service San Diego CA 142 PM PDT Sat Apr 27 2024 Forecast is based on ignition time of 0900 PDT on April 28. If conditions become unrepresentative, contact the National Weather Service. .DISCUSSION...A departing frontal system has left a deep moisture layer with low clouds banked up along the south side of the mountains. Similar to Friday the low clouds should again pull back into the valley. Mostly clear skies beginning Sunday. .SUNDAY... Sky/weather.........Mostly sunny (0-10 percent). Max temperature.....Around 64. Min humidity........38 percent. Eye level winds.....Northwest winds around 4 mph shifting to the southwest up to 6 mph with gusts to around 10 mph late in the afternoon. Wind (20 ft)........ Slope/valley.......North winds around 7 mph becoming 6 to 7 mph in the late morning and early afternoon, then shifting to the southwest 5 to 8 mph with gusts to around 14 mph late in the afternoon. Ridgetop...........North around 10 mph shifting to the west in the afternoon. CWR.................0 percent. Mixing height.......5000 ft AGL. Transport winds.....North 7 to 9 mph shifting to the southwest around 8 mph late in the afternoon. TIME (PDT) 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM Sky (%).........7 7 6 6 6 6 6 6 6 Weather cov..... Weather type.... Tstm cov........ Temp............53 57 59 62 63 64 63 63 62 RH..............50 44 41 38 38 39 41 43 47 20 FT wind dir..N N N N NW W SW SW SW 20 FT wind spd..7 7 7 6 6 5 6 6 8 20 FT wind gust.11 12 11 11 10 9 11 11 14 Eye lvl wnd dir.N N N N NW W SW SW SW Eye lvl wnd spd.4 4 4 4 4 4 4 4 6 Eye lvl wnd gst.8 9 8 8 7 7 8 8 10 Ridge wind dir..N N N NW W W W SW SW Ridge wind spd..10 10 10 10 5 5 5 10 10 CWR.............0 0 0 0 0 0 0 0 0 .SUNDAY NIGHT... Sky/weather.........Clear (0-10 percent). Min temperature.....Around 46. Max humidity........67 percent. Eye level winds.....South winds 5 to 6 mph with gusts to around 10 mph early in the evening becoming light, then becoming east around 4 mph late in the evening becoming light becoming southeast around 4 mph overnight. Wind (20 ft)........ Slope/valley.......South winds 5 to 7 mph with gusts to around 14 mph early in the evening becoming light, then becoming east around 5 mph late in the evening becoming light becoming southeast around 5 mph overnight. Ridgetop...........Southwest around 5 mph shifting to the southeast in the late evening and overnight, then shifting to the south overnight. CWR.................0 percent. Mixing height.......200 ft AGL. Transport winds.....South 5 to 7 mph shifting to the southeast 3 to 5 mph in the late evening and overnight. TIME (PDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM Sky (%).........6 6 6 6 6 4 4 4 4 4 4 5 Weather cov..... Weather type.... Tstm cov........ Temp............59 56 54 52 50 50 51 48 48 48 48 46 RH..............52 58 64 64 66 64 61 66 67 63 63 64 20 FT wind dir..SW S S S E E SE SE SE SE SE SE 20 FT wind spd..8 7 3 1 2 5 3 2 5 5 5 5 20 FT wind gust.14 12 7 4 6 9 6 6 8 9 9 9 Eye lvl wnd dir.SW S S S E E SE SE SE SE SE SE Eye lvl wnd spd.6 5 2 1 1 4 2 1 3 3 4 4 Eye lvl wnd gst.10 9 5 3 4 7 5 5 6 7 7 7 Ridge wind dir..SW SW S S SE E SE S S S S S Ridge wind spd..5 5 5 5 5 5 5 5 5 5 5 5 CWR.............0 0 0 0 0 0 0 0 0 0 0 0 .MONDAY... Sky/weather.........Mostly sunny (0-10 percent). Max temperature.....Around 65. Min humidity........35 percent. Eye level winds.....Southeast winds around 4 mph early in the morning becoming light, then becoming south up to 6 mph with gusts to around 11 mph late in the morning. Wind (20 ft)........ Slope/valley.......South winds 5 to 9 mph early in the morning becoming light, then becoming south 5 to 9 mph with gusts to around 15 mph late in the morning. Ridgetop...........South 5 to 10 mph. CWR.................0 percent. Mixing height.......4100 ft AGL. Transport winds.....South 5 to 7 mph shifting to the southwest around 8 mph late in the afternoon. TIME (PDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM Sky (%).........5 5 5 5 5 7 7 7 7 7 7 8 Weather cov..... Weather type.... Tstm cov........ Temp............46 52 51 55 57 59 63 60 61 61 64 60 RH..............63 51 53 46 43 40 35 40 40 39 35 41 20 FT wind dir..SE SE S S S S S S S S S S 20 FT wind spd..5 5 3 3 2 5 5 6 8 8 8 9 20 FT wind gust.9 8 7 6 6 9 10 11 14 14 14 15 Eye lvl wnd dir.SE SE S S S S S S S S S S Eye lvl wnd spd.4 3 2 2 2 4 4 4 6 6 6 6 Eye lvl wnd gst.7 6 5 5 5 7 7 8 10 10 10 11 Ridge wind dir..S S S S S SW SW SW SW SW SW SW Ridge wind spd..5 5 5 5 5 5 10 10 10 10 10 10 CWR.............0 0 0 0 0 0 0 0 0 0 0 0 .FORECAST DAYS 3 THROUGH 5... .TUESDAY... Mostly clear. Lows in the mid 40s. Highs in the upper 60s. North winds around 6 mph. .WEDNESDAY... Clear. Lows in the mid 40s. Highs in the mid 60s. Southwest winds around 5 mph. .THURSDAY... Mostly clear. Lows in the upper 40s. Highs in the mid 60s. Northwest winds around 7 mph. $$ Forecaster...IVORY SMALL Requested by...Brian Grant Type of request...PRESCRIBED .TAG 2412613.0/SGX .DELDT 04/27/24 .FormatterVersion 2.0.0 .EMAIL Brian.grant3@usda.gov