Area Forecast Discussion
Issued by NWS Sacramento, CA
FXUS66 KSTO 240355
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SACRAMENTO CA
855 PM PDT Wed Jul 23 2014
Temperatures will rise to near normal on Thursday then warm to
several degrees above normal Friday into early next week. The
Sierra crest will see a threat of thunderstorms Sunday into early
next week and possibly as far north as the Shasta County Mountains
.Short Term Discussion (Today through Saturday)...
We still have a moderate delta breeze this evening but that will
lighten up overnight as surface high pressure builds into Oregon
and far Northern California. Northerly winds on Thursday along
with high pressure beginning to build from the desert southwest
towards the region will warm temperatures on Thursday to around
normal. The Bay Area influence will also become much less than
what we have had over the past week with a shallow marine layer
along the coast and much weaker winds through the delta. Overall
the winds do not look that strong for most areas during the day
but may become breezy for a few hours over parts of Shasta and
Weaker delta breezes Friday and Saturday along with the building
high pressure will warm temperatures to above normal. Winds will
also be northerly for both those days but do not look that strong.
Light northerly winds on Saturday morning will reverse direction
during the day for the Sacramento valley.
.Extended Discussion (Sunday through Wednesday)
A ridge of high pressure will continue over the western US Sunday
and into next week. This will promote southerly flow once again
over California, which will bring monsoonal moisture back up over
the Sierra Crest along the western side of the upper level high.
The moisture will be enough to support a potential for Sierra
thunderstorms beginning Sunday afternoon/evening and continuing a
slight chance for Monday and Tuesday afternoon/evenings. Little
change in temperature is forecast for the extended, with
temperatures reaching a few degrees above normal with the
influence of the persistent high. Shen
VFR conditions expected the next 24 hours. Winds becoming
northerly at generally 5 to 15 kt after 15Z.