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AGUS76 KRSA 191411
HMDRSA

Hydrometeorological Discussion
National Weather Service / California Nevada RFC / Sacramento CA
710 AM PDT Sun May 19 2024

...MOSTLY DRY CONDITIONS ASIDE FROM OCCASIONAL LIGHT SHOWERS ALONG
THE NRN CA/NV BORDERS, E NV, AND THE CNTRL/SRN SIERRA AS SYSTEMS
PASS TO THE NORTH...
...NEAR TO BELOW NORMAL TEMPERATURES EXPECTED THROUGHOUT THE WEEK
AS TROUGHING TAKES OVER...

.METEOROLOGICAL CONDITIONS (SUN AM - SAT AM)...

As expected, scattered showers and thunderstorms formed yesterday
afternoon across parts of the Sierra and over NV. Observations
generally reporting 0.10" or less resulting from these showers with
locally amounts closer to 0.25-0.50". This morning, a troughing
pattern remains over the western U.S. as an upper ridge sits between
a pair of upper lows over the eastern Pacific. The region will
remain under a troughing pattern the rest of the week as some
disturbances pass through the PacNW. Still no threat of widespread
organized precipitation, but some passing systems may result in
occasional light showers over the nrn CA/NV borders, eastern NV, and
over the central/southern Sierra along with isolated thunderstorms
depending on the path some of those systems ultimately take. This
will also keep afternoon high temperatures near to below normal for
the majority of the region throughout the forecast period. Models
agree on the overall weather pattern of troughing over CA with
disturbances moving through the PacNW, but disagree on some of the
details.

QPF for the next 6 days predicted to be fairly minimal at 0.10" or
less with locally higher amounts possible under any developing
convection. Freezing levels generally 10-13 kft across the region
with occasional lowering to 5-8 kft across far nrn CA/srn OR and nrn
NV as systems pass to the north.

QPF graphics are available at www.cnrfc.noaa.gov/qpf.php



AS

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