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AGUS76 KRSA 201418

HMDRSA



Hydrometeorological Discussion

National Weather Service / California Nevada RFC / Sacramento CA

720 AM PDT Mon May 20 2024



...SCATTERED SHOWERS OVER THE CNTRL/SRN SIERRA TODAY WITH ISOLATED 

THUNDERSTORMS OVER E NV...

...NEAR TO BELOW NORMAL TEMPS THIS WEEK WITH DRY CONDITIONS ASIDE 

FROM OCCASIONAL LIGHT SHOWERS ALONG THE NRN CA/NV BORDERS AS 

DISTURBANCES PASS THROUGH THE PACNW...



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



An upper trough is currently stretched across the western US from MT 

through se CA and out to sea. An upper ridge is offshore just west 

of this trough over the eastern Pacific. The overhead trough will 

swing through the region the rest of today resulting in continued 

near to below normal temperatures and light scattered showers over 

the central/southern Sierra and eastern NV. Isolated thunderstorms 

over parts of NV possible as the axis of the trough passes this 

afternoon/evening. No widespread organized precip is expected this 

week, but near to below normal temperatures will persist along with 

occasional chances of light showers as a series of disturbances move 

through the PacNW clipping the northern regional border. These 

systems will keep the offshore ridge at bay the rest of the week 

before it begins to shift over the west coast on Sunday.



Freezing levels generally 9-12.5 kft this week occasionally dipping 

down to 5-8 kft over nrn CA/NV as systems pass to the north. QPF 

over the 6 day period should generally be 0.10" or less with locally 

higher amounts possible under any thunderstorms.



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







AS



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