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AGUS76 KRSA 161548

HMDRSA



Hydrometeorological Discussion

National Weather Service / California Nevada RFC / Sacramento CA

830 AM PDT Sat Mar 16 2024



...UPPER LOW WILL BRING SCATTERED SHOWERS AND ISOLATED THUNDERSTORMS 

INTO EARLY NEXT WEEK MAINLY OVER SRN SIERRA AND SRN CA/NV...

...PRECIP POSSIBLE OVER SRN OR AND NRN CA THURSDAY INTO FRIDAY...



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



Warm temperatures and dry conditions for the north into Monday with 

ridge of high pressure over B.C and Pac NW and into Nrn CA and Nrn 

NV.  Upper low continues to meander over the south centered around 

the CA/AZ/NV border and gradually weakens into Monday. This will 

bring scattered showers and isolated thunderstorms to Srn Sierra and 

into Srn NV and over Srn CA along with near to below normal 

temperatures over the weekend and into Monday. HREF shows about a 10 

percent chance of half an inch an hour over Srn Ca this afternoon. 

Precipitation amounts will be variable with the convection but 

generally around a few hundredths to a quarter of an inch will local 

amounts up to half an inch possible. Freezing levels around 5000-

7000ft over Srn CA and Srn NV today then rise to 7000 to 9000 ft on 

Sunday and 8000 ft and higher Monday.



The pattern starts to shift on Tuesday as a low pressure system 

approaches the B.C./WA coast and high pressure shifts south over the 

region and low moves off to the east into AZ. A few showers possible 

in the Shasta Basin and along the Sierra and over Srn Ca and Srn NV 

on Tuesday. High pressure weakens and shifts east with a trough/low 

over the Eastern Pacific off the west coast Thursday. This will 

bring a chance of precipitation to Srn OR and Nrn CA on Thursday. 

Variability in the details of the low and how far south and 

precip amounts in the models and ensemble members. Freezing levels 

around 8000 ft and higher Tuesday and dropping to around 6500-8000 

ft over Srn OR and Nrn CA on Thursday. Max temps drop to near to 

several degrees below normal over Srn OR and Nrn Ca and along the CA 

coast on Thursday and near to around 10 degrees above normal over SE 

Ca and NV 



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







Osborne



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