Mammoth Lakes had it first low 30s temp readings this morning since June. The next Trof will bring additional cooling…possibly down into the upper 20s by Sunday AM.  There is another slightly deeper Trof expected to flush through next Wednesday…..A full week away.


Both ECMWF and the GFS have reached a compromise in the depth of the weekend Trof.  500mb Heights will now remain near 570DM as the bottom briefly swings through. The EC has it coming through earlier Saturday morning while the GFS has it coming through after 00Z Sunday. (Saturday evening)

The main upshot is that no measurable precipitation is now expected Saturday in Mammoth Lakes. Although one can not rule out a few showers and snow showers in the high country.  Nevertheless…it will be chilly and breezy for the Oktoberfest Friday night, and especially Saturday with highs in the 50s.  It will feel like Fall even though Fall does not arrive officially until the next day Sunday the 22nd.


With the pattern remaining progressive over the far west and out over the eastern pacific. The eastern pacific high remaining amped over the central pacific,  supported by the MJO in Phase space 5.  Expect additional trofs to  effect the Eastern Sierra next week resulting in periods of wind, below normal temps and the possibility of light precipitation mid week.

Dr. Howard and the Dweebs………………………………………………….:-)