Spot Forecast
Issued by NWS Sacramento, CA
Issued by NWS Sacramento, CA
423 FNUS76 KSTO 032020 FWSSTO Spot Forecast for 4th of July...CALFIRE National Weather Service Sacramento CA 120 PM PDT Wed Jul 3 2024 Forecast is based on forecast start time of 0700 PDT on July 04. If conditions become unrepresentative...contact the National Weather Service. ...EXCESSIVE HEAT WARNING IN EFFECT UNTIL 11 PM PDT TUESDAY... ...RED FLAG WARNING IN EFFECT UNTIL 8 PM PDT THIS EVENING... .DISCUSSION... Very hot and dry conditions, with very little overnight relief from the heat expected on July 4th with similar conditions through the week. Winds are expected to weaken tonight heading into Thursday, transitioning to a diurnal flow pattern (northerly winds in the morning hours, becoming more southerly by the afternoon). Daytime humidities will be in the single digits to low teens through the weekend, with poor overnight recovery (maximum RHs in the mid 20s to mid 30s). .INDEPENDENCE DAY... Sky/weather.........Sunny. Max temperature.....108-112. Min humidity........7-11 percent. Surface winds (mph).North winds up to 5 mph early in the morning becoming light, shifting to the south in the afternoon. Wind (20 ft)........ Valley/lwr slopes..North winds up to 5 mph early in the morning becoming light, shifting to the south in the afternoon. RIDGE/UPPER SLOPE.. Mixing height.......Increasing to 8100 ft AGL. Transport winds.....North 5 to 7 mph shifting to the south 5 to 7 mph late in the morning. TIME (PDT) 7 AM 9 AM 11 AM 1 PM 3 PM 5 PM Sky cover.......CLEAR CLEAR CLEAR CLEAR CLEAR CLEAR Weather cov..... Weather type....NONE NONE NONE NONE NONE NONE Tstm cov........ Temp............76 85 98 103 108 110 RH..............26 20 14 12 10 9 VL/LS wind......N 5 N 5 N 5 S 5 S 5 S 5 VL/LS wind gust.8 9 10 9 10 9 Surface wind....N 5 N 5 N 5 S 5 S 5 S 5 Surface wnd gst.8 9 10 9 10 9 Ridge/upslp spd.M M M M M M Mix hgt (ft)....700 1400 4300 4300 8100 7200 Transport wind..N 7 N 6 S 5 S 5 S 7 S 6 .THURSDAY NIGHT... Sky/weather.........Clear. Min temperature.....72-76. Max humidity........35-39 percent. Surface winds (mph).South winds up to 5 mph early in the evening becoming light, then becoming east-southeast late in the evening. Wind (20 ft)........ Valley/lwr slopes..South winds up to 5 mph early in the evening becoming light, then becoming east-southeast up to 5 mph late in the evening. RIDGE/UPPER SLOPE.. Mixing height.......700 ft AGL. Transport winds.....South 5 to 8 mph shifting to the northeast 6 to 7 mph overnight. TIME (PDT) 6 PM 9 PM MIDNGT 3 AM Sky cover.......CLEAR CLEAR CLEAR CLEAR Weather cov..... Weather type....NONE NONE NONE NONE Tstm cov........ Temp............108 96 84 76 RH..............11 18 26 35 VL/LS wind......S 5G9 S 3G6 E 5G8 N 2G6 Surface wind....S 5G9 S 3G6 E 5G8 N 2G6 Ridge/upslp spd.M M M M Mix hgt (ft)....7200 700 700 700 Transport wind..S 6 S 8 SE 5 E 6 .FRIDAY... Sky/weather.........Sunny. Max temperature.....112-116. Min humidity........6-10 percent. Surface winds (mph).Light winds becoming northwest up to 6 mph late in the morning, then shifting to the west up to 6 mph late in the afternoon. Wind (20 ft)........ Valley/lwr slopes..Light winds becoming northwest up to 6 mph late in the morning, then shifting to the west by the late in the afternoon. RIDGE/UPPER SLOPE.. Mixing height.......Increasing to 10200 ft AGL. Transport winds.....North around 7 mph shifting to the east around 6 mph late in the afternoon, then shifting to the west around 7 mph late in the afternoon. TIME (PDT) 6 AM 10 AM 2 PM Sky cover.......CLEAR CLEAR CLEAR Weather cov..... Weather type....NONE NONE NONE Tstm cov........ Temp............75 94 112 RH..............35 19 10 VL/LS wind......N 2G6 N 3G7 NW 5G10 Surface wind....N 2G6 N 3G7 NW 5G10 Ridge/upslp spd.M M M Mix hgt (ft)....700 800 9700 Transport wind..N 7 N 7 E 6 $$ Forecaster...KF Requested by...Patrick Lewis Type of request...OTHER .TAG 2417300.0/STO .DELDT 07/03/24 .FormatterVersion 2.0.0 .EMAIL Patrick.lewis@fire.ca.gov