Area Forecast Discussion
Issued by NWS Sacramento, CA
FXUS66 KSTO 050508
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SACRAMENTO CA
1005 PM PDT SUN OCT 4 2015
Mild weather with near to slightly below temperatures through
Tuesday. Warming begins Wednesday.
.DISCUSSION (TODAY THROUGH WEDNESDAY)...
Cyclonic flow from the upper low over Socal will be affecting Norcal
for at least one more day before the transition to anticyclonic flow
with the return of high pressure from the Pacific Ocean on Tue.
Backwash cloudiness around the low will bank-up clouds on the E side
of the Siernev Crest and we would expect some spill-over onto the W
side of the Crest mainly during the daytime hrs due to surface
heating. Just a slight chance of a light shower or two in the far
SErn corner of our CWA in Alpine/Tuolumne Cos mainly Mon afternoon.
Otherwise dry wx pattern developing with ridging/warming for the
week ahead. JHM
Daytime highs should range near to slightly below normal into
Tuesday as that low hovers over SoCal. By Tuesday night/Wednesday
morning, the low starts tracking eastward and high pressure
ridging builds into NorCal. This will cause a warming trend
midweek and temperatures will finally nudge several degrees above
normal by Wednesday as drier weather continues. JBB
.EXTENDED DISCUSSION (Thursday THROUGH Sunday)
Strong upper level high pressure ridging will keep dry weather
and unseasonably warm temperatures Thursday through the weekend.
Temperatures are expected to peak Saturday, with highs in the
lower 90s across the Valley. Slightly cooler temperatures arrive
next Sunday, as a weak system brushes by to the north. So far, it
looks like any precipitation with that system will remain to the
north and west of the area. EK
VFR conditions expected over the next 24 hours. A few light
showers possible with local MVFR cigs over the Sierra Nevada south
of KTVL through Monday evening. Light winds overnight.