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AGUS76 KRSA 121324
HMDRSA

Hydrometeorological Discussion
National Weather Service / California-Nevada RFC / Sacramento CA
625 AM PDT Wed Aug 12 2026

...COOLER TEMPERATURES THROUGH THE PERIOD...
...PRECIP CHANCES BEST TODAY THROUGH FRIDAY...

.METEOROLOGICAL CONDITIONS (WED AM - TUE AM)...

General troffing along the west coast this morning sits between two
areas of high pressure. The first is now well downstream of the
area...shifting from the 4-Corners region to the southern Plains
states. The other is over the eastern Pacific primarily aligned
along 140W stretching up into the Gulf of Alaska. This setup is
resulting in cooler temperatures expected to last the remainder of
this week and persist into much of next week too. Look for anomalies
to bottom out this Friday from minus 5- to minus 20-degF for
afternoon high temperatures. By the weekend...the troffing does
weaken a bit...and eventually re-establishes itself a bit farther
offshore just outside of 130W.

In terms of precip...the next 3 days look to bring the best
opportunity for widespread showers and thunderstorms mainly during
the afternoon and early evening hours...peaking on Thursday as a
disturbance rotates through the overall flow. Precip chances will be
best across the central/southern Sierra...much of NV...and to a
lesser extent southeast CA. Could see some localized amounts
exceeding the 1.00-inch mark. As the general troffing weakens and
moves a bit more offshore...look for precip chances to diminish this
weekend into early next week.

Freezing levels are currently hovering from 14000- to 15500-feet and
will see a decrease into the weekend from 13000- to 15000-feet
before starting to bump up over the southeast portion of the area
closer to 17000-feet by next Tuesday.


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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