Area Forecast Discussion
Issued by NWS San Joaquin Valley, CA

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FXUS66 KHNX 231100

Area Forecast Discussion
National Weather Service San Joaquin Valley - Hanford CA
400 AM PDT Wed May 23 2018

Near normal temperatures and mostly dry conditions will persist
over the next several days. Increased chances of showers and
thunderstorms will also continue over the higher elevations of the
Sierra. Slightly cooler conditions and an increase in unsettled
weather and clouds will develop beginning Friday into the
weekend. A warming trend is expected on Sunday and continue into
the middle of next week.


A relatively active pattern will continue into the holiday
weekend with weak systems moving through the main flow over the
region. The main impacts with these systems will be an increase in
clouds, near normal to slightly below normal temperatures, breezy
to gusty conditions for the coastal ridge pass areas and the Kern
County mountain passes and desert areas. Also, increased chances
of higher elevation showers and thunderstorms with the unsettled
air mass. Campers and hikers venturing up to the mountain areas
should be vigilant and prepared for the development of
thunderstorms. Lightning can be deadly and a lack of shelter in
these areas increases the risks.

On Sunday, weak ridging will move into the region bringing a
decrease in mountain thunderstorm chances and increasing
temperatures across the area. Afternoon highs of low to mid 90s
will occur across the San Joaquin Valley and Kern County desert
areas by Monday. Keep in mind that area rivers and lakes are cold
and if swimming is on the agenda this holiday weekend to be sure
to wear life-vests and remember that alcohol use around the water
can make for a dangerous combination. Another, system is progged
to move southeastward into the region by the middle of next week,
again cooling temperatures and increasing precipitation chances,
especially over the Sierra crest areas.


Expect a few thunderstorms with local MVFR/IFR conditions over the
higher elevations of the Southern Sierra Nevada between 19Z today
and 03Z Thursday. Otherwise...VFR conditions will prevail across the
Central CA 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 medium.

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


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