Area Forecast Discussion
Issued by NWS Sacramento, CA

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002
FXUS66 KSTO 292002
AFDSTO

Area Forecast Discussion
National Weather Service Sacramento CA
102 PM PDT MON AUG 29 2016

.SYNOPSIS...
Below normal temperatures and locally breezy this week. Mostly dry
except for isolated showers/thunderstorms over the Coast Range
early Tuesday.

&&

.DISCUSSION...
Fairly mild day thus far. Valley temperatures as of 1 pm are
ranging from the mid 70s to mid 80s. Expect those highs to
continue to warm another 5-10 degrees this afternoon with the
warmest area up near Redding and Red Bluff.

High clouds are still streaming across NorCal...tapping into moisture
from Hurricane Madeline out in the Central Pacific Ocean. That
moisture could contribute to a slight chance of showers and
thunderstorms overnight into Tuesday morning as a short wave
tracks into NorCal. With moisture and instability from the short
wave, it appears the best timing for thunderstorms would occur
overnight into Tuesday morning. The area of concern within our CWA is
across the coastal range north of Lake County, however, the slight
chance of some dry lightning may occur farther southward, but
confidence is lower in that scenario. By Tuesday afternoon, the
short wave will track northeastward out of our CWA and the airmass
aloft will be drier so have left out mention of showers and
thunderstorms for Tuesday afternoon and evening.

After the passage of the short wave, the main trough will linger
near the West Coast for the remainder of the week. The trough will
bring a slight cooling trend. Daytime highs will be 1-5 degrees
below average for interior NorCal through Thursday. The trough
will also enhance winds in some areas resulting in occasionally
breezy conditions.   JBB

&&

.EXTENDED DISCUSSION (Friday THROUGH Monday)
NorCal will be under the influence of a longwave trough through
the weekend. This will continue below normal temperatures. No
precipitation expected. By the end of the weekend into early next
week, ridging may gradually build in, bringing a warming trend in
temperatures and more northerly flow. CEO

&&

.AVIATION...
VFR conditions across TAF sites next 24 hours with some high
clouds today. Generally light onshore winds around 5 to 10 kts
except for gusts up to 25 knots near the Delta.

&&

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

&&

$$



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