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Hydrometeorological Discussion
National Weather Service / California Nevada RFC / Sacramento CA
630 AM PST Sat Jan 31 2026

...DRY INTO LATE NEXT WEEK FOR MOST AREAS...
...LIGHT PRECIP ALONG THE IMMEDIATE NORTH COAST ON SUNDAY...

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

A strong ridge of high pressure remains overhead steering moisture 
away from CA well to the north. Behind that area of moisture lies an 
upper low that will head northeastward this weekend towards BC 
sending a front into the PacNW. The tail end of this front will 
scrape nw CA tomorrow resulting in some light showers along the 
immediate north coast. Expecting generally less than 0.10" and up to 
0.25" over the Smith Basin. Amounts very quickly drop to zero away 
from the coastline. The overall system will suppress the ridge some 
while shifting it inland over the intermountain west and Four 
Corners regions. CA/NV will still remain under this upper ridge as 
surface high pressure also sits offshore of CA over the eastern 
Pacific. One form of high pressure or another is forecast to remain 
overhead through mid week keeping precip out of the forecast. Models 
have some troughing moving in late next week with disagreements on 
the overall pattern. However, both the det GFS and the ECMWF have 
these as dry systems. A few ensemble members have maybe a few 
hundredths of an inch here and there, but for now the official 
forecast will remain dry.

Looking into the far future for any signs of precip, the latest CPC 
8-14 day outlook shows near normal conditions for the second week of 
February and slight chances of above normal precipitation over srn 
CA/NV. IVT probabilities out of the ECMWF and GEFS show the 
potential for at least some moisture around that time as well, but 
nothing like the kind of signals we'd see ahead of an atmospheric 
river. Bottom line, no significant widespread precip is currently in 
sight.


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.