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Hydrometeorological Discussion
National Weather Service / California-Nevada RFC / Sacramento CA
710 AM PDT Fri Jun 26 2026

...COOLER THAN NORMAL THROUGH THE PERIOD...
...SHOWERS FOR AREAS NEAR AND NORTH OF I-80 THROUGH SUNDAY...

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

General troffing across the west coast is being reinforced by an 
area of low pressure moving out of the Gulf of Alaska toward the 
southeast. This is currently generating scattered showers across 
areas near and north of I-80 this morning. As the system from the 
northwest settles across the western US this weekend...look for 
broad troffing across the region with cooler than normal 
temperatures bottoming out either Saturday or Sunday from west to 
east across the area. Afternoon temperature anomalies could run 
anywhere from 5- to 25-degF under seasonal normals. Also...through 
the weekend...expect rounds of showers to move across the region 
with individual disturbances rotating through the general flow with 
the best chance of precip remaining near and north of I-80.

The troffing across the western US will remain in place through the 
middle of next week...weakening a bit. This should bring an end to 
the precip chances...but cooler than normal temperatures are 
anticipated to last all the way through the week.

Freezing levels are currently running from 10000- to 16000-feet 
across the region...lowest northwest and highest southeast. As the 
cooler air filters in across much of the region...look for freezing 
levels to bottom out late Saturday or early Sunday from 6500-feet 
over the upper Klamath River basin...northeast CA...and northwest 
NV. For southern areas...where cooler air doesn/t quite 
reach...freezing levels should remain near or just above 16000-feet. 
With slight weakening to the cyclonic flow across the west during 
the middle of next week...look for freezing levels to reach up 
closer to 12000-feet over the upper Klamath River basin to about 
16000-feet near the CA/MX border.


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.