Area Forecast Discussion
Issued by NWS Sacramento, CA
FXUS66 KSTO 261622
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SACRAMENTO CA
922 AM PDT Tue Aug 26 2014
High pressure rebuilds with a warming trend through the remainder
of the week, followed by a weak trough later this week bringing
increasing high clouds and cooler temperatures.
After a cooler Monday due to the upper Low transiting the area,
temperatures will begin to warm across the interior of NorCal
today and atmosphere will stabilize as high pressure builds in
from the eastern Pacific. Readings today are expected to top out
around 5-10 degrees warmer than on Monday as onshore flow weakens
and the overall airmass warms in response to rising heights aloft
(850 mb temps forecast to increase around 3-4 degrees C).
Temperatures this week are forecast to top out on Tuesday and
Wednesday as the upper ridge moves overhead. Portions of the
Central Valley, especially the north end of the Sacramento Valley,
may once again reach triple digits these two days.
By Friday and Saturday, another trough is forecast to approach
from the Gulf of Alaska lowering heights and bringing increased
onshore flow resulting in another cool down. The region will also
likely see an increase in high clouds emanating from the remnants
of Hurricane Marie, however it`s looking more likely that deeper
moisture will remain well offshore west of 130W.
Mainly VFR conditions the next 24 hours. Winds will remain below
15 kt today across Valley TAF sites, with SW winds 15-25 kt near