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Hydrometeorological Discussion
National Weather Service / California Nevada RFC / Sacramento CA
705 AM PDT Fri May 8 2026

...WARMING WITH DRY CONDITIONS THROUGH MONDAY...
...POTENTIAL FOR SCATTERED SHOWERS SIERRA CREST ON TUESDAY...
...WEAK SYSTEM TRAVERSES THE NORTH ON WEDNESDAY...

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

High pressure is currently centered to the southwest of CA and 
extends north-northeast across the west coast into western Canada. A 
weak disturbance moving through the southwest flow aloft over the 
northeast Pacific is making its way toward the Pacific Northwest. 
This will temporarily halt the building of the upr ridge across the 
region as it moves inland today...but then on Saturday...look for 
heights to continue to build across the west coast. Another weak 
s/wv trof will make its way toward the Pacific Northwest on 
Sunday...once again only briefly slowing down the building of the 
upr ridge across the region. By Monday into Tuesday...the upr ridge 
will slide inland and strengthen over the 4-Corners bringing a peak 
to the upcoming above average temperatures...anywhere from plus 10- 
to plus 25-degF over seasonal normals.

With the upr ridge downstream of the region...this will allow from 
some moisture to advect northward on the upstream side of the upr 
ridge. Models are hinting at the potential for some scattered 
showers/t-storms at the Sierra crest on Tuesday. Then on 
Wednesday...with the upr ridge sliding farther downstream across the 
Rocky Mountain states and eventually the Great Plains states...a 
s/wv trof moving toward the west coast may generate some scattered 
light precip over the higher terrain of northern CA and northern NV. 
Models not overly in concert at this point...so confidence is lower. 
However...by the middle of next week...it is getting clearer that 
the well above normal temperatures will wane.


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.