488
AGUS76 KRSA 021723
HMDRSA

Hydrometeorological Discussion
National Weather Service / California Nevada RFC / Sacramento CA
925 AM PST Sun Nov 2 2025

...LIGHT PRECIP FAR NRN CA/SRN OR MON-TUE...
...STRONGER SYSTEM WITH ROUND OF HEAVY PRECIP EXPECTED LATE TUE
THROUGH WED FOR MAINLY NRN CA WITH LIGHTER AMOUNTS ELSEWHERE...

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

Expect mainly dry conditions across the area today with low-
amplitude ridging in place.  On Mon, expect a moisture plume and and
front to approach the north coast of CA and southern OR.  Light
precip is expected to persist across northern CA/southern OR through
Tue as the moisture plume stalls and weak onshore flow/isentropic
lift persist.  Freezing levels 8500 ft and above are expected.

By late Tue into Wed, expect a frontal boundary and associated
moisture plume and trough aloft to approach the west coast and phase
with the initial moisture plume. This setup is expected to bring a
band of heavy precipitation across northern CA before the front
weakens. Only light precipitation is currently expected for central
CA and northern NV. Freezing levels are expected to start off 9000
ft and above and ultimately fall to around 7000-11,000 ft by late
Wed across most of the areas receiving precip.  Model consistency
regarding timing and intensity of this system still have improved
significantly compared to yesterday morning`s runs.  A WPC/NBM blend
was used for QPF. Another front is expected to bring light
precipitation to far northern CA/southern OR Thu into Fri with
freezing levels 7000-10000 ft.


Please Note: This product may NOT be routinely updated.
Please refer to the following product issued by the CNRFC
www.cnrfc.noaa.gov/Daily-Briefing for a graphical summary of
weather and hydrologic conditions.

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



Lerman

$$