FXUS66 KHNX 222322 AAA
Area Forecast Discussion
National Weather Service San Joaquin Valley - Hanford CA
315 PM PDT Fri Jun 22 2018
...Updated Air Quality section...
Dry conditions with well above normal temperatures will prevail
through the weekend. Temperatures will lower slightly next week
with dry weather continuing.
Summer has officially begun and it will certainly feel like it
through this weekend as strong high pressure brings well above
normal temperatures. 24 hour trends indicate temps are currently
running 3-6 degrees higher than yesterday across the San Joaquin
Valley. Most of the valley will top the century mark later this
afternoon, near 10 degrees above climatological normals. The air
mass will warm further on Saturday resulting in max temperatures
around 105 across much of the SJV. A Heat Advisory is in effect
today and again on Saturday due to the increased threat of heat
illnesses. Some reminders during the heat: drink plenty of fluids,
stay in an air-conditioned room, stay out of the sun, and check
up on relatives and neighbors. Also, remember to provide water
and shelter for pets and livestock. Temperatures are expected to
nudge downward beginning Sunday, but this may end up being a day
too early. Will closely evaluate the next couple of model runs
to determine if the Heat Advisory needs to be extended through
Sunday as well.
The ridge is expected to weaken Monday as an upper trough drops
over the Pacific Northwest. Additional s/wv energy is projected
to move into the west coast midweek with a more amplified trough
digging down into California. Temperatures will trend lower to
near normal by later in the week. Otherwise, a very dry atmosphere
will mean nary a cloud in the sky for at least the next several
VFR conditions will prevail across the Central CA interior during
the next 24 hours.
.AIR QUALITY ISSUES...
On Saturday June 23 2018...Unhealthy for sensitive groups in
Fresno...Kern...Kings and Tulare Counties and Sequoia National Park
and Forest. Further information is available at Valleyair.org
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.php for additional information
an/or to provide feedback.
Heat Advisory until 8 PM PDT Saturday CAZ089>092.
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