Springville, California 7 Day Weather Forecast

Wx Forecast - Wx Discussion - Wx Aviation

932
FXUS66 KHNX 141113
AFDHNX

Area Forecast Discussion
National Weather Service Hanford CA
313 AM PST Sun Dec 14 2025

.UPDATE...Updated Aviation section.

&&

.KEY MESSAGES...
1. Fog, while dense at times, and low clouds will continue each
night and morning across the San Joaquin Valley into the
foothills up to 2,500 feet through Tuesday.

2. Above average temperatures will continue across the
mountains and desert until Tuesday, as the high pressure
pattern persists over the region.

3. Precipitation makes its return to Central California by the
middle of the week after having a dry start to December.

&&

.DISCUSSION...
The consistent stable pattern over the southwest will continue
through at least the beginning of next week, with strong ridging
keeping the low stratus clouds in place for the San Joaquin
Valley and dense fog for the foothills of the Sierra Nevada and
the Coastal Range from elevations of 1000 feet to 2500 feet.
This stratus may also lower further down during the nighttime
hours and lead to fog in the Valley itself.

There are indications of a pattern change beginning by next
Tuesday night into Wednesday with some light precipitation
possible in Central California as far south as Madera County,
with current probabilities for a tenth of an inch of rainfall at
10 to 20 percent from Madera northwards. There are also 25 to 35
percent probabilities for an inch of snowfall in the Sierra
Nevada, with snow levels from the NBM 25th percentile at 7500
feet and at the NBM 75th percentile closer to 95000 feet on
Wednesday afternoon. These percentiles have closed by about 500
feet on either side, which shows an increase in confidence.
This system may also be unsettled enough to push the current
stratus out of the Valley, though any new rainfall may cause
dense fog development in the Valley afterwards.

Looking into the long term, the Climate Prediction Center has
outlined Central California for a slight risk for heavy
precipitation from December 20th through December 26th, as well
as the Sierra Nevada for heavy snow. The ECMWF 500mb model is
also indicating a trough may move through around that time
frame, meaning unsettled weather may return again to the region
after the weak system coming in on Wednesday next week.

&&


.AVIATION...
IFR to LIFR ceilings and visibilities are expected to prevail
for much of the San Joaquin Valley during the next 24 hours,
with a 40 to 50 percent chance of VLIFR due to dense fog until
19Z Sunday and a 50 to 60 percent chance of VLIFR in dense fog
returning after 06Z Monday. IFR to LIFR conditions will also
persist in the coastal ranges, Sierra foothills, and the Kern
County mountains due to low clouds. Otherwise, VFR conditions
will prevail in the Sierra Nevada and in the Kern County
mountain and desert areas over the next 24 hours.

&&

.AIR QUALITY ISSUES...
On Sunday December 14 2025, Fireplace/Wood Stove Burning Status
is: No Burning Unless Registered in Fresno, Kern, and Madera
Counties. Burning Discouraged in Kings, Merced, and Tulare
Counties, and Kern (Greater Frazier Park Area) and Sequoia
National Park and Forest.

&&

.CERTAINTY...

The level of certainty for days 1 and 2 is medium.
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...
Dense Fog Advisory until 11 AM PST this morning for CAZ300>316.
&&

$$

EW/JPK/BSO

weather.gov/hanford