Area Forecast Discussion
Issued by NWS Sacramento, CA
FXUS66 KSTO 261509
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SACRAMENTO CA
809 AM PDT Thu Mar 26 2015
Mainly warm and dry weather will continue the next week. Weak
systems may bring a few showers to the mountains this weekend into
early next week.
High pressure will remain in control today with ridge axis
overhead. This will allow for dry weather, mostly sunny skies and
warming temperatures. Highs will be 5-8 degrees warmer than
Wednesday and will top out in the low to mid 80s in the Valley
with 70s in the mountains. Little to no change made to going
forecast for today.
Skies are mostly clear across interior Northern California as high
pressure builds into the area. Highs will be in the lower to mid
80s today with the ridge axis overhead, and again Friday as the
ridge shifts eastward.
An upper level trough will approach the West Coast late Friday.
The current consensus is for the trough to split, with a closed
low possibly forming off the Southern California coast. Hi-Res
models are showing the possibility of a few showers over the
Shasta County mountains late Friday into Saturday, and over the
Sierra and Lassen Park over the weekend. This trough may cool
temperatures a few degrees across the region, but highs will
remain well above normal for this time of year.
.Extended Discussion (Monday through Thursday)
Basic outlook in the extended forecast is dry weather with above
normal temperatures. Weak ridging re-establishes itself on Monday
over NorCal with valley highs in the low 80s, mountains/foothills
in the 60s and 70s. This will put max temps about 15 degrees above normal. A
weak trough will move into the Pacific NW by early Tuesday morning
and brush far NorCal which will lower daytime highs by about 5
degrees but they will still be 10 degrees above normal. Only a
slight variation to temperatures Wednesday into Thursday as dry
weather continues with somewhat zonal flow aloft. JBB
VFR conditions continue. Few to sct high clouds possible with variable
winds less than 10 kts.