Version:  Current  |  Back 1  |  Back 2  |  Back 3  |  Back 4  |  Back 5  |
Hydrometeorological Discussion
National Weather Service / California Nevada RFC / Sacramento CA
1240 PM PST Fri Jan 23 2026

...VERY SCATTERED LIGHT PRECIP SOUTH AND EAST TODAY INTO SATURDAY...
...POTENTIAL FOR A SYSTEM TO ARRIVE WEDNESDAY OF NEXT WEEK...

.METEOROLOGICAL CONDITIONS (FRI PM - THU AM)...

For the short-term...minimal changes with scattered light precip 
expected across coastal southern CA and portions of the Great Basin 
with two features impacting the region. The first is an upr low 
spinning just west of northern Baja...which is poised to become an 
open wave and increase its forward speed over the the next 24 
hours...as it makes its way across the southern Plains. The other is 
with a weak s/wv trof dropping southeast from the Pacific Northwest 
toward the Great Basin on the upstream side of the broad upr trof 
encompassing much of the nation.

An upr ridge will slide across the west coast for the latter half of 
the weekend into Monday...bringing dry conditions to the region. 
This feature is expected to be transitory with an upr trof moving 
toward the eastern Pacific and west coast for the middle of the 
week. Unfortunately...the 23/12Z models are struggling with the 
timing and positioning of this feature...which will determine when 
and where the potential for mainly light to locally moderate precip 
occurs. For now...followed close to the latest WPC QPF...which does 
spread the best precip along coastal areas between the lower Russian 
River basin south through the SF Bay Area and down to the Big Sur 
coast. This is all in the Day 6 time period (Wednesday)...and is a 
low confidence forecast.