Area Forecast Discussion
Issued by NWS San Joaquin Valley, CA

Current Version | Previous Version | Graphics & Text | 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

000
FXUS66 KHNX 152109
AFDHNX

Area Forecast Discussion
National Weather Service San Joaquin Valley - Hanford CA
103 PM PDT Tue May 15 2018

.SYNOPSIS...
A push of cooler air can be expected across central California by
Wednesday with below normal temperatures into Thursday. All areas
will remain relatively breezy with winds increasing by Wednesday
afternoon. Highest wind gusts will be over the Sierra crest to
eastern Kern County through Wednesday evening. Then, decreasing
winds and clouds by Thursday morning.

&&

.DISCUSSION...
Shortwave troughs will pretty much dominate the weather pattern
for central California through early next week. This will result
in normal to slightly below normal temperatures and somewhat
unsettled weather over the Sierra Nevada Mountains. The first low
pressure and associated trough moves inland over central
California on Wednesday. Not much moisture with this trough per
models, but definitely a push of cooler air can be expected. This
marine layer/air actually pushes into the San Joaquin Valley
tonight. A breezy northwest wind will accompany this airmass,
especially northern half of the valley.

Speaking of wind, the models are picking up on stronger gusts
across most of the forecast area starting Wednesday afternoon and
continuing through the evening hours. Southern and eastern Kern
County into the Mojave Desert will have decent wind gusts behind
the aforementioned boundary. In fact, some areas should have gusts
very close to Wind Advisory criteria. Will have the next few
forecast shifts take a closer look. Either way, it will be breezy
through Wednesday night with passage of mid/upper level trough.

Even with limited moisture, believe there is just enough lift and
heating for widely scattered afternoon and early evening showers
and thunderstorms over the Sierra Range. In fact, convection over
the highest terrain remains likely in this pattern.

The pattern changes just enough by this upcoming weekend,
resulting in less convection and warmer temperatures across
central California. A shortwave ridge looks to move over the
forecast area by the weekend, before the next trough moves inland
by early next Monday. Weekend high temperatures should reach the
middle to upper 80s in the San Joaquin Valley.

However, temperatures either side of this upcoming weekend will be
quite comfortable with highs in the upper 70s to lower 80s. Higher
mountains of the Sierra Nevada may not get out of the 50s the
next few days, with overnight lows well below the freezing mark.
The forecast over the next week for the central California
interior should be enjoyed before summer starts in earnest.

&&

.AVIATION...
VFR conditions will prevail across the central California interior
through Wednesday, although some clouds will persist in the
Sierra Nevada Range. A northwesterly surface wind will increase in
both the San Joaquin Valley and eastern Kern County Desert
beginning Wednesday afternoon...continuing until around 09Z
Thursday.

&&

.AIR QUALITY ISSUES...
None.

&&

.CERTAINTY...

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

Certainty levels include low...medium...and high. Please visit
www.weather.gov/hnx/certainty.php for additional information
an/or to provide feedback.

&&

.HNX Watches/Warnings/Advisories...NONE.
&&

$$

public...Lynott
avn/fw...Lynott
synopsis...Lynott

weather.gov/hanford


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