Area Forecast Discussion
Issued by NWS Sacramento, CA

Current Version | Previous Version | Text Only | Print | Product List | Glossary Off
Versions: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46

797
FXUS66 KSTO 291030
AFDSTO

Area Forecast Discussion
National Weather Service Sacramento CA
330 AM PDT WED JUN 29 2016

.SYNOPSIS...
Hot and mainly dry weather this week. Isolated late-day
thunderstorms possible over the mountains.

&&

.DISCUSSION...
Clear skies across interior NorCal early this morning. A rather
weak Delta Breeze spread some cooling inland Tuesday evening, but
the marine layer remains too shallow, and onshore gradients too
weak, for big-time cooling yet. Nevertheless, temperatures are
running a little cooler across most of the Central Valley compared
to 24 hours ago while mountain areas are a little milder.

Light easterly drainage winds across the west slopes of the
northern Sierra may allow some smoke from the Trailhead Fire
burning to the east of Auburn to drift down into the eastern
suburbs of Sacramento this morning.

Overall, the large-scale pattern remains relatively unchanged
today compared to yesterday. The difference is that the Delta
Breeze is at least back, yet still without vigor. So, portions of
the valley closer to the Delta will see some moderation of temps
today while inland areas remain hot.

Weak upper trough gradually develops over NorCal later this week
and will likely bring more significant cooling by the weekend,
Until then, hot weather will continue inland with fluctuating
temperatures near the Delta the next few days as it cycles up and
down.

A few late-day thunderstorms will be possible again in the Sierra
south of Tahoe today and Thursday. The warm mid-level cap may
erode just enough late today for something to pop across the
mountains of far northern California, but this is less certain.

&&

.EXTENDED DISCUSSION (SUNDAY THROUGH WEDNESDAY)...
Upper trough will persist along the Pacific Northwest over the
weekend into early next week, resulting in dry weather and near
normal temperatures. Expect high temperatures in the 90s across
the Valley, with 70s and 80s over the mountains. Dang

&&

.AVIATION...
VFR conditions the next 24 hours. Light winds generally below 10
kts, except occasional SW wind gusts near the Delta region. Dang

&&

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

&&

$$



USA.gov is the U.S. government's official web portal to all federal, state and local government web resources and services.