Area Forecast Discussion
Issued by NWS San Joaquin Valley, CA

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FXUS66 KHNX 102002
AFDHNX

Area Forecast Discussion
National Weather Service Hanford CA
102 PM PDT Mon Aug 10 2020


.SYNOPSIS...Scattered afternoon thunderstorms over the Sierra
Nevada mainly north of Tulare County are possible through
Tuesday. Normal to above normal afternoon highs will continue
across the valley for the next week.

&&

.DISCUSSION...
Seasonably hot weather to continue across the San Joaquin Valley
today as many areas are forecast to surpass the century mark by
afternoon. High temperatures are forecast to be in the 98-103
degree range for most of the valley today. Latest GOES17 imagery
is depicting some building CU over the Sierra Nevada, mainly north
of Tulare County. HRRR model guidance is showing thunderstorms
developing around 2 PM; these thunderstorms will be capable of
gusty winds 40-50 mph, small hail, and localized downpours.

High temperatures will moderate a couple degrees tomorrow as
upper troughing begins to influence the area. Afternoon convection
over the Sierra Nevada again look possible, mainly north of
Tulare County as instability prevails. The trough will usher in
drier air aloft by Wednesday and this will likely halt the chance
for convection as dew points are forecast to be 10-12 degrees
lower than on Tuesday. High temperatures to remain near normal
through Wednesday and Thursday as the upper trough slowly advances
over the area. Some moisture from Tropical Storm Elida may pivot
around a desert southwest ridge by Thursday and Friday, which
could bring some cloud cover over Central California these days.
By this weekend, a strong upper ridge will shift west over Central
California, heralding the return of widespread triple digit heat.
Afternoon highs by Saturday will range from 100-105 degrees
across the SJ Valley, and up to 104-109 degrees in Indian Wells
Canyon.

&&

.AVIATION...
Isolated thunderstorms can be expected near the Sierra crest
through 03z Tuesday. Otherwise, VFR conditions will prevail over
the central California interior during the next 24 hours.

&&

.AIR QUALITY ISSUES...
On Monday August 10 2020... Unhealthy for sensitive groups in Kern
County and Sequoia National Park and Forest.
Further information is available at Valleyair.org



&&

.CERTAINTY...

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

&&

.HNX WATCHES/WARNINGS/ADVISORIES...
None.
&&

$$

public...Bollenbacher
aviation....Bollenbacher

weather.gov/hanford



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