Scientific Forecaster Discussion
fxus66 khnx 242249
Area forecast discussion
National Weather Service Hanford California
349 PM PDT Sat Aug 24 2019
Update...updated air quality issues section.
warming trend over the next few days as a ridge of high pressure
anchors itself over the forecast area. Temperatures will remain
above average through next week. Expect afternoon highs on Monday
through Wednesday to be around 5-10 degrees above average. Slight
chance of a few afternoon/evening showers and thunderstorms over
the Sierra crest midweek.
visible satellite imagery shows mainly sunny skies across the
central California interior with just a few cumulus popping over
the Sierra Nevada. 24 hour trends show temperatures are generally
at to a couple degrees lower than yesterday. High temperatures in
the San Joaquin Valley will top out mostly in the upper 90s today
with a few locations reaching the century mark. A ridge of high
pressure will strengthen over the region for a warming trend the
next few days. Triple digit highs will become more widespread in
the sjv, lower foothills, and desert. Maximum temperatures are
forecast to be around 5-10 degrees above climatological normals
Monday through Wednesday. An upper trough is expected to weaken
the ridge a little later in the week as it approaches the Pacific
northwest coast. This will nudge temperatures back downward but
are still expected to be a little above normal.
Water vapor imagery show Tropical Storm Ivo spinning west of the
southern tip of Baja California. Ivo is forecast to weaken to a
tropical depression by Sunday as it slowly moves to the north-
northwest. The remnants are forecast to track northward to just
west of the central California coast by Tuesday and then inland
over northern California on Wednesday. There may be just enough
moisture and instability to produce some isolated showers and
thunderstorms over the Sierra Nevada tues-Wed. Otherwise, dry
conditions will continue over the forecast area.
Aviation...VFR conditions can be expected over the central
California interior during the next 24 hours.
Air quality issues...
on Sunday August 25 2019...unhealthy for sensitive groups in Fresno
and Kern 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 high.
Certainty levels include low...medium...and high. Please visit
www.Weather.Gov/hnx/certainty.Html for additional information
an/or to provide feedback.