AGUS76 KRSA 261850
HMDRSA

Hydrometeorological Discussion
National Weather Service / California Nevada RFC / Sacramento CA
1150 AM PDT Thu Mar 26 2026

...ABOVE NORMAL TEMPERATURES AND DRY THROUGH THE WEEKEND...
...FINALLY A RETURN TO COOLER AND WETTER STARTING MONDAY...

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

A weak weather system moving across the northern tier of the country 
has flattened the upr ridge that extends toward the region from west 
Texas late this morning. This will result in slightly cooler 
temperatures as compared to the past several days...but still remain 
above normal for this time of year. Through the upcoming 
weekend...the upr ridge will re-establish itself across the western 
US with the last of this extended warm and dry weather through 
Sunday. Afternoon high temperatures are expected to be anywhere from 
plus 10- to plus 25-degF over seasonal normals with the highest 
anomalies across the southeast CA deserts and eastern NV. 

Finally by Monday...the upr ridge will weaken and shift downstream 
of the area being replaced by lower heights and west to southwest 
onshore flow. A round of disturbances will make their way across the 
region with cooler and wetter conditions anticipated...especially 
the northern half of the region. 26/12Z models are showing some 
differences in terms of timing and strength of these disturbances 
across the area...and thus confidence in exact details this far out 
is not overly high.

Afternoon forecast changes compared to this morning were minimal 
while incorporating the latest WPC QPF...showing a slight increase 
of a few hundredths of an inch to 0.25-inch...mainly over the Sierra.


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



DRK

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