The closed low that brought heavy rainfall to the Reno area Tuesday was located over Eastern NV Thursday night and moved ENE out of the state by morning. The pattern that originated was classic in that Reno and areas mainly north of Mono County were in the favorable NE quad of the upper low that moved in over the Bay Area Wednesday morning. Upper divergence combined with strong daytime heating brought rainfall to many areas in Tahoe, Minden, Carson City and Reno. Amounts were between 1/2 to an inch of rain in many areas.  Thursdays rain showers did not have the forcing of yesterday as mainly residual moisture and daytime heating provided the lift.

Friday AM Update: Today Friday is looking a bit different as the Rapid Refresh Model now shows showers developing long the Sierra Crest south to the Southern Sierra. The focusing will be over the crest then drifting east of the crest late in the day. So there is a better possibility of showers or a thunderstorm in the Mammoth Area today, from mainly diurnally driven convection. Tomorrow Saturday, dynamic lift begins to show up again. On Saturday, a negative tilt open wave moves into Mono county. So far the models are not overly impressed with the pattern with some showers in the afternoon. I will update Saturday AM. The main feature will be what drops in late Sunday as the negative tilt trof over CA reloads and a closed low drops down the coast late Sunday night into Monday. Monday afternoon looks to be the most active rainfall wise for Southern Mono County, otherwise there is a chance of showers and thunder each afternoon but not to a major degree.


High temps will be in the upper 50s and low 60s while the lows will range in the very upper 20s and 30s.


The Memorial Holiday weekend still looks nice and warm but possibly breezy at times.


Dr HJoward and the Dweebs……………..:-)