Hydrometeorological Discussion National Weather Service / California-Nevada RFC / Sacramento CA 620 AM PDT Fri Jun 19 2026 ...SCATTERED SHOWERS AND T-STORMS OVER NRN CA, THE SIERRA, NRN NV TODAY NARROWING TO NRN CA/NV TOMORROW... ...DRY CONDITIONS NEXT WEEK WITH WARMING TEMPERATURES... .METEOROLOGICAL CONDITIONS (FRI AM - THU AM)... Radar and satellite this morning show an area of scattered thunderstorms over nrn CA, the Sierra, and nrn NV. Lightning detection has picked up flashes and strikes over those areas as well due to mid level moisture and instability. Expect this to continue the rest of today into this evening with additional chances of thunderstorms over far nrn CA into nrn NV tomorrow. Amounts are expected to remain near or less than 0.25", though locally higher totals will be possible. A general troughing pattern through the weekend will also keep temperatures near seasonal normals before high pressure re-exerts itself next week. A ridge will build in offshore shifting overhead throughout early to mid next week allowing temperatures away from the coast to rise up to 5 to 15 deg F above seasonal normals. Longer range ensembles show the potential for the ridge to flatten next weekend. 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. |