Hydrometeorological Discussion National Weather Service / California-Nevada RFC / Sacramento CA 645 AM PDT Tue Jul 7 2026 ...CHANCES OF SHOWERS AND T-STORMS OVER THE SIERRA AND NRN NV TODAY NE NV TOMORROW... .METEOROLOGICAL CONDITIONS (TUE AM - MON AM)... The region remains between troughing over the eastern Pacific and high pressure over the interior US. Models continue to show moisture and instability over nrn NV and parts of the Sierra this afternoon and evening lifting to the northeast for Wednesday. This will result in chances of showers and thunderstorms over parts of the Sierra and nrn NV today pulling into ne NV tomorrow. High pressure will shift westward from the desert southwest the next couple of days ushering in drier air and warming temperatures. Anomalies are forecast roughly +5 to +10 deg F at the end of the week aside from nw CA still under the influence of a low off the BC coast. The area of high pressure then looks to shift over the Four Corners over the weekend cooling temperatures some and potentially allowing some moisture to rotate into the area on Sunday, though models disagree on that last point. Freezing levels 14-17 kft across the area from north to south today rising to 15-18 kft at the end of the week. 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. |