Big Creek, California 7 Day Weather Forecast

Wx Forecast - Wx Discussion - Wx Aviation

340
FXUS66 KHNX 010429
AFDHNX

Area Forecast Discussion
National Weather Service Hanford CA
929 PM PDT Thu Jul 31 2025

.UPDATE...Updated Aviation section.

&&

.KEY MESSAGES...
1. Near average temperatures are expected across much of the
region into the weekend. There is a 20 to 50 percent chance to
exceed 100 degrees in the San Joaquin Valley Friday and
Saturday.

2. Increased fire risk this weekend with widespread minimum
relative humidity between 20 and 25 percent for the non-desert
areas. MinRH expected less than 10 percent in the Mojave Desert
with gusty winds in the afternoon to evening.

3. Slight cooling trend early next week before returning above
triple digits. 15 to 25 percent chance for greater than 105
degrees in the San Joaquin Valley next Thursday.

&&

.DISCUSSION...
Seasonal conditions are currently resent for central California
as zonal flow is gradually setting up over the region. This
pattern is resulting from a trough located over the northeast
Pacific and an area of high pressure building over the Desert
Southwest. Temperatures through the weekend are expected to be
near average for this time of year, with widespread highs in the
San Joaquin Valley in the upper 90s; there is also a 20 to 50
percent chance for triple-digit temperatures Friday and
Saturday. The warming temperatures will result in a decrease in
relative humidity over the area. Weekend minimum values of 20 to
25 percent are expected for the San Joaquin Valley, and Sierra
foothill and mountain areas along with values less than 10
percent in the Kern Desert. There is also potential for gusty
winds in the typical wind-prone locations, including Pacheco
Pass, Lake Isabella, and the Mojave Slopes with the upcoming
pattern. This may further enhance fire risk when combined with
the lowered RH values.

A brief cooldown is anticipated early next week as a shortwave
low pressure trough passes through northern California and the
Pacific Northwest. For Monday, there is less than a 40 to 50
percent chance to exceed 95 degrees in the San Joaquin Valley.
This cooldown will quickly be replaced with a warming trend for
the remainder of the week as high pressure builds in. There is a
35 to 85 percent chance for afternoon highs to exceed 100
degrees Wednesday through the weekend, and a low chance (15 to
25 percent) to exceed 105 degrees.

&&

.AVIATION...
06Z Update:

VFR conditions are expected in the San Joaquin Valley for the next
24 hours.

&&

.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...
None.

&&

$$

public/aviation...McCoy/BSO
idss.............Molina

weather.gov/hanford