642 
FXUS66 KHNX 072333 AAA
AFDHNX

Area Forecast Discussion
National Weather Service Hanford CA
333 PM PST Sun Nov 7 2021

.UPDATE...Updated air quality issues section.

&&

.SYNOPSIS...
An approaching storm system will bring rain as well as snowfall
mainly above 7,000 feet to areas primarily north of Kern County 
Monday night through Tuesday evening. The remainder of next week 
will be dry with slightly above average temperatures. Tule fog 
will be possible in the San Joaquin Valley Wednesday through the 
end of the 7 day period.


&&

.DISCUSSION... 
The passage of a weak front and persistent stratus have kept 
current temperatures down by as much as 10 degrees in the valley 
and foothills, to 20 degrees lower in the Kern County mountains 
compared to this same time yesterday. Low stratus will continue 
into the evening hours with some minor clearing by morning.

A disturbance currently at 35N/130W is moving along the periphery
of larger scale synoptic trough. Latest guidance brings this 
feature into the region late Monday through Tuesday evening. 
Precipitation will initially begin in Yosemite as well as Merced 
and Mariposa Counties by Monday evening. Precipitation will then 
spread southward across the district over the course of Tuesday. 
General amounts in the valley will range from 0.5" to 1" in Merced
and Madera Counties, 0.25" to 0.50" for Fresno, and 0.10" to 
0.25" in Kings and Tulare Counties. Less than 0.10" is expected 
in Kern County. The heaviest precipitation will remain confined 
mostly in the Sierra mountains and foothills from Fresno County 
north into the Yosemite area. Snowfall will start as early as 
Monday evening in Yosemite area, eventually moving south into 
Kings Canyon NP by Tuesday morning. Snowfall amounts of 6" to 12" 
with isolated amounts up to 18" area possible and a Winter Weather
Advisory will go into effect Monday evening through Tuesday 
afternoon. As the system exits the region, strong gusty winds may 
be possible in the Kern County mountains and desert.

After this system moves out of the area, ensembles are in good
agreement with a strong ridge of high pressure building into the
region from Wednesday through the end of the 7 day forecast period.
This will lead to dry conditions, above average temperatures, and
chances of morning fog in the valley.

&&

.AVIATION...A few patches of MVFR ceiling along the Sierra 
Nevada Foothills and Kern County Mountains through 12Z Monday.
Otherwise, VFR conditions will prevail elsewhere over the central
California interior during the next 24 hours.

&&

.AIR QUALITY ISSUES...
None.



&&

.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
an/or to provide feedback.

&&

.HNX WATCHES/WARNINGS/ADVISORIES...
Winter Weather Advisory from 10 PM Monday to 4 PM PST Tuesday 
for CAZ323-326>328.

&&

$$

public...CMC
aviation....Andersen

weather.gov/hanford