022
FXUS66 KHNX 222320
AFDHNX

Area Forecast Discussion
National Weather Service Hanford CA
420 PM PDT Thu May 22 2025


.KEY MESSAGES...
1. Above average temperatures continue today, with a slight
cool-off expected tomorrow and Saturday. Highs are expected to
remain steady through the week, with a slight increase this
Sunday.

2. Minimum relative humidity in the Valley is expected to be 15
to 20 percent in the afternoon, and wind gusts of 20 to 30 mph
are expected later tonight, so a minor fire risk still exists
today.

3. There is a 50 to 80 percent chance for wind gusts greater
than 50 mph in the Mojave Desert Slopes on Thursday. A Wind
Advisory has been issued for the area from 5 PM Thursday through
11 PM Friday.

&&

.DISCUSSION...
A weak trough is expected to pass over Northern California
today, with some downstream effects here in Central California
in the form of elevated winds in the Valley and desert slopes.
There is a 50 to 80 percent chance for wind gusts greater
than 50 mph on the slopes today, and wind gusts of 20 to 30 mph
in the Valley later tonight. Coinciding with the winds are
lowered RH`s in much of the Valley this afternoon, with values
of 15 to 20%.

As the trough passes through, temperatures are expected to cool
slightly tomorrow and Saturday. With the exception of Sunday,
where a ridge will quickly pass through and raise temperatures
again, highs will be fairly steady through mid next week due to
another weak trough passing through. Looking into the long term
forecast, a strong ridge may build up by next Thursday, leading
to an increase in temperatures throughout the region, though
there is uncertainty here as a small trough could infiltrate the
right and weaken the ridge.

&&

.AVIATION...
00Z Update:

Gusty conditions are possible across the San Joaquin Valley,
with a 30-40% chance for wind gusts greater than 25 knots
through 12Z Friday. There are more favorable chances in the
Mojave Desert Slopes, with a 40-60% chance for 35 knot gusts
through 21Z-23Z Friday. Otherwise, VFR conditions will prevail
for the next 24 hours across the Central California Interior.

&&

.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
and/or to provide feedback.

&&

.HNX WATCHES/WARNINGS/ADVISORIES...
Wind Advisory until 11 PM PDT Friday for CAZ338.
&&

$$

Aviation....Molina

weather.gov/hanford