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Hydrometeorological Discussion
Issued by NWS California-Nevada RFC
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Hydrometeorological Discussion
National Weather Service / California Nevada RFC / Sacramento CA
725 AM PDT Sun Apr 14 2024

...ONE MORE DAY OF COOLER AND UNSETTLED...
...DRY AND WARM FOR THE UPCOMING WORK WEEK...

.METEOROLOGICAL CONDITIONS (SUN AM - SAT AM)...

Another 24 hours of cooler and unsettled conditions on tap as a
vertically stacked system currently moving inland along the central
CA coast slowly shifts off toward the east across the southern
Sierra and then eventually extreme southern NV before exiting to the
east over the 4-Corners region on Monday. Two areas of precip this
morning with the first focusing on areas along the central coast
down to Point Conception and inland over the southern San Joaquin
Valley and adjacent Sierra locations...in close vicinity of the
primary circulation moving inland. The next is on the northern edge
of the cyclonic flow where an area of convergent flow is generating
precip dropping southwest across northern CA almost down to the I-80
corridor...while showers over northern NV are rotating from
southeast to northwest. Through this afternoon...precip near the
CA/OR border will focus mainly over the upper Klamath River basin
and the northeast CA Plateau...while down south the area of precip
closer to the primary circulation will move across the extreme
southern Sierra and transverse mountains between eastern Santa
Barbara county across Los Angeles county. Then overnight into early
Monday...precip will be on the decrease as the upr low moves east
and drier north to northwest flow begins to set up across the region
as an upr ridge builds over the eastern Pacific.

Freezing levels this morning are lowest across northern CA from 3500-
to 4500-feet and then 4000- to 5500-feet for central CA. Inland and
south where the coldest air has yet to filter overhead...these still
are elevation with 7000- to 9000-feet across eastern NV down toward
the southeast CA deserts. As the upr low moves inland...cooler air
will make it over NV into early Monday with freezing levels down to
5500- to 7000-feet...slightly higher for the southeast CA deserts.
Warmer air will already be making its way along northern/central CA
coastal areas...with freezing levels bouncing back closer to 8500-
to 9500-feet. Through the week...these will rebound across the
entire region...ranging from 8000-feet well north and east to just
over 14000-feet along the CA/MX border.

Much of the upcoming work week will be dry with warmer temperatures
on tap as the upr ridge aligns itself along or just off the west
coast with flow generally west to northwest. Models are hinting at
the possibility of a very weak disturbance moving through the flow
across central/southern CA and southern NV on Friday...but right
now...it appears as if at best there will be a few build ups over
the southern Sierra on Friday afternoon with a rogue shower or two
developing near the crest.


QPF graphics are available at www.cnrfc.noaa.gov/qpf.php



Kozlowski

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National Weather Service Weather Forecast Office
