Archive for March, 2021

Up to 20 inches of fresh on Mammoth Mt Today…..Upslope snowfall to end this evening…..Next Storm Monday with another the end of the week…..

Sunday 1`:30PM…..Its later than you think!! 😉

No changes of the snowfall estimates for tonight and Monday as stated below. Winter Weather advisories were hoisted by the NWS beginning late tonight into Monday Evening.

The mid-week period still looks dry, however, as also stated below, the next storm for the next weekend looks much warmer and wetter with the possibility of a weak AR as ITV and IWV are indicting. Considering the slow movement of the storm, amounts may end up in the two foot+ range by week’s end.

More later on that storm…


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


Light beautiful upslope snowfall continued Friday, as the storm system exits Southern CA today into the Desert SW.  Saturday looks blue bird with ridge top winds diminishing during the mid to late afternoon. Highs in Mammoth will climb into the 40s after being in the mid to upper 20s for several days.

With the wintertime Hudson Bay Low absent now and its upstream blocking absent, the progression of short waves have resumed into California. The next upstream system will have a small moisture tap enough for the possibility of an additional 7 to 10 inches of fresh on Mammoth Mt by Monday into Monday evening.  The Town may get 4 to 6 inches.  In the Dweebs extended outlook (subject to change) The following Tuesday through Friday looks dry at the moment, with the next system looking both warmer and wetter, beginning the following Sunday. There may be a weak AR with that storm….  The second half of next week looks milder temperature wise…..


Dr. Howard and the Dweebs…………………:-)

Active Pattern returns to the Sierra as a series of cold storms begin their March into the West Coast next week…..

4:35pm Sunday

Models still beating the drum of a cold moderate storm. 6 to 18 inches with the average snowfall amount of about a foot.  This is mainly a Tuesday through Thursday storm.  There are several more systems expected the following week.  More later……


The Dweeber…………………….


It’s March…..And what we would normally expect over this part of the hemisphere is a weakening Hudson Bay Low; AKA Polar Vortex.   The feature that often provide blocking in the wrong place for California is now Absent!  This will gives California the opportunity to play catch up on our subnormal snowpack over the next two weeks.   At the moment, it is running about 50% of normal for this time of the year.  Looking at the precipitation portion of the European Ensembles out through the 17th, the model gives the crest up to 4 feet of snow through that period and the climate models keep it coming beyond that time frame.  Keep in mind, without a substantial AR, were not going to get heavy amounts….. And so far, none is indicated…  The new developing pattern for next week shows a series of cold Trofs heading into all of California beginning Monday with the longwave position parked just off or along the California coast beginning this Friday night then through the following weekend. In that the storms are cold, expect the powder to be lighter than normal…

In the meantime, we have a couple of nuisance systems to deal with.  One moving through Southern CA today that may bring a few showers and another that is focused mainly on the northern sierra this weekend that may bring an inch or two to Mammoth Lakes.  Highs this weekend will be in the 40s with lows in the teens and 20s.  It will be breezy more often than not this weekend. The more active pattern begins this upcoming Monday and continues beyond…..


Dr Howard and the Dweebs………………..:-)