Hydrometeorological Discussion National Weather Service / California-Nevada RFC / Sacramento CA 620 AM PDT Thu Jul 16 2026 ...SCATTERED SHOWERS/T-STORMS EASTERN NV AND SOUTHEAST CA THU/FRI... ...BETTER CHANCES FOR SHOWERS/T-STORMS SAT-TUE FOR THE SIERRA... .METEOROLOGICAL CONDITIONS (THU AM - WED AM)... Strong high pressure continues over the interior of the country with the axis of this feature generally over the Plains states. At the same time...a weak area of low pressure continues to spin off the Pacific Northwest coast. This has brought generally drier southwest flow to the majority of the region with the exception being eastern NV and southern CA where moisture remains elevated with PW values hovering above 1.00-inch. For today and Friday...look for the best opportunity for showers and thunderstorms to be across the eastern third of the region. Through the upcoming weekend into early next week...high pressure will continue to hold strong downstream of the area...while weak troffing just off the west coast elongates. This overall setup will turn flow a bit more southerly and allow for higher moisture content air to start advecting northward. Precip chances will return to the Sierra...mainly the southern and central portions of the range...as well as much of NV. Freezing levels remain relatively constant through the period...fluctuating from 14000- to 17000-feet with the lowest to the northwest and the highest to the east. 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. |