Porterville, California 7 Day Weather Forecast

Wx Forecast - Wx Discussion - Wx Aviation

707
FXUS66 KHNX 072310 AAA
AFDHNX

Area Forecast Discussion...UPDATED
National Weather Service Hanford CA
410 PM PDT Mon Apr 7 2025

.UPDATE...Updated Key Messages and Aviation Section.

&&

.KEY MESSAGES...

1. Dry weather will prevail through the upcoming weekend.

2. Wind Advisory for the Mojave Slopes through 1100 PM PDT
Tuesday.

3. Temperatures will remain a few degrees above normal through
Tuesday then rise to well above normal Wednesday through Friday.

&&

.DISCUSSION...An upper ridge extends from southern California
northeast over the Rockies this morning as an upper trough
pushes inland over the Pacific Northwest. Precipitation extends
down to northern California with dry conditions continuing
across the central California interior. The main impact from the
trough will be increasing winds across the Mojave Slopes this
afternoon. The probabilities for a maximum wind gust greater
than 45 mph are 65% in Mojave today and 60% on Tuesday. A Wind
Advisory is in effect for the Mojave Slopes from 2 PM this
afternoon through 11 PM Tuesday.

An upper ridge will build over the west coast on Wednesday then
amplify through Friday as it gradually shifts eastward over the
Rockies. Temperatures are forecast to be around 4 to 8 degrees
above climatological averages today then lower to around 2 to 5
degrees above average on Tuesday. The ridge brings much warmer
conditions the rest of the week with Thursday expected to be the
warmest. Highs are forecast to be around 10 to 15 degrees above
average on Thursday with Wednesday and Friday being around 8 to
12 degrees above average. The probabilities for a high greater
than 82 degrees in the San Joaquin Valley on Wednesday generally
range from 45 to 70 percent. The probability for a high greater
than 87 degrees Thursday generally ranges from 45 to 75 percent.

Model ensembles favor an eastern Pacific upper trough splitting
as it reaches the coast this weekend. The northern energy moves
over the Pacific Northwest as the southern energy forms a closed
upper low off the central/southern California coast. Dry weather
is forecast to continue at this time with temperatures lowering
to slightly above average. Winds will increase again and could
reach advisory level along the Mojave Slopes.

&&

.AVIATION...00Z Update:

VFR conditions will persist across the central CA interior thru
24Z Tue.

&&

.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 Tuesday for CAZ338.

&&

$$

public...DCH
aviation...DAS

weather.gov/hanford