Area Forecast Discussion
Issued by NWS Sacramento, CA

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000
FXUS66 KSTO 240520
AFDSTO

Area Forecast Discussion
National Weather Service Sacramento CA
1020 PM PDT TUE AUG 23 2016

.SYNOPSIS...
A subtle warm up expected Wednesday and Thursday, but still
around seasonal averages. Then weak troughing late in the week
will cool temperatures to below normal levels.

&&

.SHORT TERM DISCUSSION (Tonight through Friday)...
Max temps were several degrees cooler Tue than yesterday except for
the Nrn SJV and Srn Motherlode areas. The temps were near normal
except in the Solano Co area where the cooling influence of the
Delta Breeze resulted in temps some 7-13 degrees cooler than normal.

A persistent weak trof over the region will keep a temperate wx
pattern over Norcal for the rest of the week with thunderstorm
activity remaining outside our CWA. JHM

&&
.EXTENDED DISCUSSION (Saturday THROUGH Tuesday)

ECMWF progs an upper low/trough off the West Coast to move across
NorCal Monday or Tuesday while the GFS keeps the trough over
Oregon with ridging/anticyclonic flow over NorCal. Either way,
available moisture is limited and main impact appears to be some
increased onshore flow. Temperatures are the question mark with
these two pattern differences. We split the difference and kept
temperatures below to near normal for the extended. JClapp


&&

.AVIATION...
NW flow aloft with trough axis over the Great Basin. Marine layer
slight lowered today to about 1500 ft at Ft. Ord, but stayed at
1700 ft at Bodega Bay profiler. MVFR/IFR stratus likely to return
to Cordelia tonight with only limited possibly of stratus creeping
into Sac Valley Wednesday morning. Local SW SFC wind gusts 30-35
kts in Delta again 22z-13z.      JClapp


&&

.STO Watches/Warnings/Advisories...
None.
&&

$$



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