Mettler, California 7 Day Weather Forecast

Wx Forecast - Wx Discussion - Wx Aviation

762
FXUS66 KHNX 130538
AFDHNX

Area Forecast Discussion
National Weather Service Hanford CA
1038 PM PDT Sat Sep 12 2026


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.KEY MESSAGES...
1. Wind Advisory for the San Joaquin Valley from 7 PM Saturday
to 5 AM Sunday. Wind Advisory from 10 PM Saturday to 11 AM
Sunday for the Mojave Slopes and Desert. Lake Wind Advisory
from 1 PM Saturday to 10 AM Sunday for San Luis Reservoir. Lake
Wind Advisory from noon Saturday to 11 PM Sunday for Lake
Isabella.

2. Minimum relative humidity between 15-30 percent and high
confidence for 30 mph wind gusts lead to Elevated Fire Risk for
the Valley and Foothills Saturday night through Sunday morning.

3. Minor Heat Risk over the weekend into next week with a
cooling trend this weekend. Although much cooler, high
confidence that temperatures will be above normal.


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.DISCUSSION...
Winds are picking up across the area as a trough continues to
slide in the area due to the strong gradient between the core of
the trough and the ridge of high pressure that has moved east.
Temperatures will be cooler on Sunday with a 80 to 90 percent
chance of highs below 90 degrees in the Valley. Winds decrease
late Sunday morning but winds will remain gusty around Lake
Isabella. Wind Advisories will gradually expire across the
region on Sunday morning when the winds decrease starting in the
Valley before the Mojave Slopes and San Luis Reservoir.

Temperatures begin to rebound on Monday as the trough lifts.
In its place, a rex block will emerge off the coast and the
ridge across the Southern U.S. will strengthen leading to the
warmup. However, temperatures will remain above average with a
30 to 55 percent chance of highs of at least 95 degrees in the
Valley from Thursday into next weekend. The CPC outlooks shows a
major shift from a 50 to 60 percent chance of above average
temperatures in the 6-10 day outlook to a 33 to 50 percent
chance in the 8-14 day outlook. The CPC also shows a 33 to 50
percent chance of above average precipitation in the 8-14 day
outlook hinting again at a pattern change.

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.AVIATION...
VFR conditions prevailing for the next 24 hours. Strong NW gusts
expected across most of the area.


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.FIRE WEATHER...
A low pressure system moving into the area is gusty winds to
the central San Joaquin Valley and Sierra Nevada crest of Madera
County late Saturday afternoon. Gusts of 30 and 45 mph
respectively will overlap with relative humidity around 20 to 30
percent before evening recovery begins. While both minimum
relative humidity and fuel curing are not at critical levels,
there is moderate fire weather concerns through Sunday morning
as strong winds will support rapid initial spread of any fire
starts.


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.AIR QUALITY ISSUES...
None.

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.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.

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.HNX WATCHES/WARNINGS/ADVISORIES...
Wind Advisory until 11 AM PDT Sunday for CAZ338.
Lake Wind Advisory until 10 AM PDT Sunday for CAZ300.
Wind Advisory until 5 AM PDT Sunday for CAZ301>307-309>312-315.
Lake Wind Advisory until 11 PM PDT Sunday for CAZ332.
&&

$$

JPK

weather.gov/hanford