Area Forecast Discussion
Issued by NWS Sacramento, CA
Issued by NWS Sacramento, CA
321 FXUS66 KSTO 272004 AFDSTO Area Forecast Discussion National Weather Service Sacramento CA 104 PM PDT Sat Apr 27 2024 .Synopsis... Mild and dry weather in store with breezy winds early next week. && Mostly clear skies prevail over interior NorCal today, as high temperatures in the Valley remain in the mid 70s, the foothills in the 60s, and the mountains in the 50s. While the quiet and calm weather will continue through early next week, a brief and weak shortwave trough will still bring the slightest chances for precipitation to the northern Sacramento Valley, northern foothills, and mountains this evening (NBM has a less than 10% probability for more than a trace amount). Early in the week, a low over the Pacific Northwest, combined with a high pressure system to the south will keep us in a calm but warm pattern. Winds in the Valley may get breezy on Monday and Tuesday, with a 20 to 50% probability of gusts of at least 30 mph between Red Bluff and Sacramento, as well as areas of the Valley along the Coastal Range. Winds will be strongest in the late morning/early afternoon. Otherwise, expect calm conditions with slightly warming temperatures for the end of the month. Highs in the Valley will range from the mid to high 70s, foothill highs will be in the mid 60s to low 70s, and mountain temperatures will generally be in the 60s. //SP && .EXTENDED DISCUSSION (Wednesday THROUGH Saturday)... Ensembles project upper level troughing to be well off to our northeast and keep interior NorCal under northwesterly flow aloft on Wednesday. As we start to move into the later parts of next week, off-shore upper level ridging is forecast to build and pave the way for continued dry and warm weather. Cluster analysis still reveals some forecast uncertainty regarding upper level ridging dominating or a more zonal flow regime over the area as we continue to move through the week. The NBM is favoring dry and warm weather over the area currently throughout the extended period. Current high temperature forecasts for Wednesday through Saturday are in the upper 70s to low 80s for the Valley, and upper 50s to low 70s for the higher elevations. && .AVIATION... Mainly VFR conditions next 24 hours except areas of MVFR possible vicinity showers northern mountains and northern Sierra between 21Z and 06Z as a weak weather system moves through. Surface wind gusts generally less than 12 kts. && .STO WATCHES/WARNINGS/ADVISORIES... None. && $$