Hydrometeorological Discussion National Weather Service / California-Nevada RFC / Sacramento CA 650 AM PDT Tue Sep 22 2026 ...CHANCES OF SHOWERS/T-STORMS OVER ERN NV TODAY... ...LIGHT PRECIP N COAST AND CA/OR BORDER LATER THU INTO FRI... .METEOROLOGICAL CONDITIONS (TUE AM - MON AM)... An upper low is currently traversing NV headed for UT. Satellite and lightning detection picking up some thunderstorms over parts of eastern NV and into UT earlier this morning. Chances of showers and thunderstorms in the forecast over eastern NV today as the low exits. Dry conditions for tomorrow as drier air moves in behind that exiting low before troughing arrives from the northwest again on Thursday. This will generate some showers over the north coast and across the CA/OR border through Friday afternoon. Amounts look roughly 0.10-0.30" over the Smith Basin and the crest of the Cascades down to a few hundredths or so for surrounding areas. Additionally some monsoonal moisture looks to move into se CA and srn NV in the afternoon Thursday returning chances of some showers and thunderstorms to those areas. Models then have another trough moving in some time on Sunday or Monday. This may bring additional light showers, though the majority of the ensembles are dry. 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. |