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Area Forecast Discussion (AFD)

Issued by San Joaquin Valley, CA (HNX)

                            
000
FXUS66 KHNX 191237
AFDHNX

Area Forecast Discussion
National Weather Service San Joaquin Valley - Hanford CA
437 AM PST Tue Feb 19 2019

.SYNOPSIS...
The next storm system will impact Central California around the 
middle of the week. This storm system will be moisture starved, 
with precipitation amounts much less than what fell in the 
forecast area this past weekend. Temperatures will remain below o
normal for this time of year for at least the next several days.

&&

.DISCUSSION...
Cold air on the back side of a departing trough is maintaining
cooler than normal conditions across central California, with
another round of freezing temperatures across the San Joaquin
Valley this morning. A Freeze warning remains in effect through 9
AM. Just some lingering upslope clouds in the south end this 
morning, otherwise we can expect mainly sunny skies with 
temperatures around 6 to 12 degrees below climo today.

Expect little change in temperatures Wednesday in continued
northwesterly flow ahead of the next approaching shortwave trough.
This trough will bring another round of cold precipitation by
later Wednesday. Snow levels with this system will drop below 3000
ft bringing some snow into the foothills again, although moisture
is rather limited and snowfall accumulations will be modest.
Rainfall in the lower elevations will also be limited, with just a
few hundredths to around a tenth of an inch expected. A few 
inches of snow falling at pass level in the Kern County mountains 
can disrupt travel and a Winter Storm Watch is in effect there 
Wednesday into Thursday.o

Below normal temperatures continue into the end of the week,
behind the exiting system then temperatures will moderate 
somewhat by the latter part of the weekend as heights increase 
ahead of another developing trough. There are model differences 
with the evolution of this feature but forecast calls for a chance
of precip by early next week. 


&&

.AVIATION...
VFR conditions can be expected across the central CA Interior for 
the next 24 hours. 

&&

.AIR QUALITY ISSUES...
None.

&&

.CERTAINTY...

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
www.weather.gov/hnx/certainty.html for additional information
an/or to provide feedback.

&&

.HNX Watches/Warnings/Advisories...
Winter Storm Watch from Wednesday afternoon through Thursday 
afternoon CAZ095.

Freeze Warning until 9 AM PST this morning CAZ089>092.

&&

$$

public...JEB
avn/fw...Andersen
synopsis...JEB

weather.gov/hanford