Area Forecast Discussion
Issued by NWS San Joaquin Valley, CA

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FXUS66 KHNX 242250

Area Forecast Discussion
National Weather Service San Joaquin Valley - Hanford CA
350 PM PDT Sat Mar 24 2018

A weak low pressure system moving through the region will bring
clouds and a chance for precipitation outside the desert areas
and especially to the higher elevations around Yosemite National
Park through early Monday morning. High pressure will move into
the region beginning Monday, bringing dry and much warmer
conditions through the end of next week.


Scattered showers are developing across central CA as a frontal
trough drops south through the region ahead of an upper low
approaching the northern CA coast. We have had a couple of
lightning strikes and a report of small hail with some of this
convection. We should continue to see scattered convective
activity outside of desert zones through the evening while the
upper low continues to swing into the coast. Winds have been
gusting to around 30-35 mph in the desert areas this afternoon and
we expect to see gusts around 40 mph continuing through the
evening behind the trough.

As the upper low continues eastward the main trough is progged to
push through our region by Sunday night. This will produce gusty
and cooler conditions over the area, with temperatures around 5-10
degrees below climo Sunday. Showers will also linger over the
higher terrain Sunday through Sunday night.

Monday will begin dry and warming conditions as the trough slides
into the desert southwest and an upper ridge amplifies along the
US west coast. As the ridge strengthens through the week, our
temperatures will climb to around 6-12 degrees above normal by
Friday. An approaching shortwave trough is forecast to flatten the
ridge by Saturday bringing a degree or so cooler temps but no


Areas of MVFR and local IFR in scattered showers in the San
Joaquin Valley through 06Z Sunday, with localized terrain
obscurations and low ceilings in the mountains and foothills
lingering through 00Z Monday. Otherwise, VFR conditions will
prevail throughout the central California interior during the
next 24 hours.





The level of certainty for days 1 and 2 is high.
The level of certainty for days 3 through 7 is high.

Certainty levels include low...medium...and high. Please visit for additional information
an/or to provide feedback.


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