The same data is available at this site. Please update your bookmarks.
Thank you, and we apologize for the inconvenience.
Please send an email to SR-SRH.Webmaster@noaa.gov with any concerns.
536 FXUS66 KSTO 302135 AFDSTO AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE SACRAMENTO CA 235 PM PDT Wed Jul 30 2014 .Synopsis... Another day of Sierra crest showers and thunderstorms tomorrow (less coverage than today)...when a drying trend. Then a return to Sierra showers and t-storms early/mid week next week. && .Discussion... Activity started pretty early today with showers and thunderstorms along highest terrain from Near Plumas county all the way south to Tuolumne County. Expect this activity to continue off and on this afternoon but probably end a bit quicker than normal by early afternoon as latest moisture plume pushes off to the east. HRRR hinting at some weak possible returns in valley near Sacramento...as there is some mid level instability in the area...but rally lacking a trigger for valley and should result in ACCUS. Thursday...still some instability lingering around highest terrain for isolated activity...less than today...again confined to crest. Friday and Saturday...westerly flow pushes moisture and instability out of area for dry weather. Should see temperatures at to slightly above normal during this time. Rasch && .Extended Discussion (Sunday through Wednesday) Upper ridge positioned over the Intermountain West Sunday as weak upper trough moves through NorCal. Increased mid-level southwesterly flow Sunday will keep the threat of afternoon thunderstorms outside of the forecast area with only a slight chance over the higher Sierra Nevada, south of Highway 50, on Monday. Models then depict upper ridging from the Desert SW rebuilding northwestward over Interior NorCal next week. Mid-level flow begins to turn more southerly Tue and southeasterly Wed with another slug of monsoonal moisture working its way into the forecast area. Threat of afternoon thunderstorms expands northward along the Sierra Tuesday, through Western Plumas into the Shasta and coastal mountains Wednesday. Near normal high temperatures expected through early next week then warming upwards of 5 degrees above normal Wednesday. && .Aviation... Upr rdg movs E as SWly flow alf with EPAC upr trof incrs Thu. Isold tstms poss ovr hyr mtn trrn of the Cstl rnge, Shasta, Plumas, and Siernev thru 05z Thu otrw VFR conds ovr Intr NorCal nxt 24 hrs. Isold SWly sfc wnd gsts to 25 kts poss ovr hyr mtn trnn and thru Delta aftns into eves. && .STO Watches/Warnings/Advisories... None. && $$