Area Forecast Discussion
Issued by NWS San Joaquin Valley, CA
FXUS66 KHNX 290958 CCA
Area Forecast Discussion...CORRECTED
National Weather Service San Joaquin Valley - Hanford CA
258 AM PDT FRI JUL 29 2016
A ridge of high pressure continue to bring hot temperatures through
the weekend. Afternoon and early evening showers and thunderstorms
are possible along the Sierra crest today and through the weekend
and will possibly spread into the Kern County mountains and desert
by the weekend.
.DISCUSSION...Last of the Thursday afternoon convective debris has
moved east of the Sierra with clear skies for the rest of the area
early this morning. Another hot day over the area as the ridge
axis remains parked over the area. For today the convective threat
in the Sierra looks to be a little farther east however some
immediate crest storms are still possible by late morning and
early afternoon. Another very hot day for sure with highs at or
exceeding Thursday`s values. An excessive heat warning has been
issued for the Kern County Desert area where the hottest locations
could reach 115 degrees. For the record the highest temperature
officially recorded in the Kern County desert is 119 at
China Lake in 1988 and again in 1993. The heat will continue into
Saturday and Sunday as forecast models keep the ridge axis nosing
well west into Central California with heights remaining at or
above 5920 meters at the 500 millibar pressure level.
Forecast models then bring a trough of low pressure across the
Pacific Northwest on Tuesday and Wednesday and the top of the
ridge axis is disturbed. This will result in some "cooling"
however it will be minor with lower elevation values remaining at
or slightly above 100 degrees through much of next week. &&
Cumulus buildups and isolated thunderstorms are expected over the
Sierra Nevada this afternoon and evening, otherwise VFR conditions
can be expected through Central California for at least the next 24
.AIR QUALITY ISSUES...
The San Joaquin Valley Air Pollution Control District has issued an
Air Quality Alert due to smoke impacts in San Joaquin, Stanislaus,
Merced, Madera, Fresno, Kings, Tulare, and the Valley Portion of Kern
Counties from the Soberanes Fire. For details, please refer to the
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.php for additional information
an/or to provide feedback.
Excessive Heat Warning from 11 AM this morning to 8 PM PDT this