Tuesday Evening Update:

Although conditions for high Snow to water ratios continue through Wednesday AM, it is unlikely that a foot of snow will fall tonight over the crest, and so the Dweebs Criteria for another Platinum-Powder-Alert is not there.  However, 500MB temperatures over the area associated with the upper low will still be -27C and even -10C at 700MB over night tonight and into the morning. So potentially, snow to water ratios of 15:1 still exist.  Snowfall amounts over night may range between 5 to 8 inches above 9000 ft to over the crest by mid morning and in town,  3 to 5 inches is possible. Another inch or two is possible during the day Wednesday..

As a note; there is more uncertainly about the QPF tonight, as compared to last night when the upper jet was plowing through the Southern Sierra. Another reason for QPF uncertainty is that a lot of the precip will remain over the west side tonight.

The Thursday night Friday splitting system is expected to bring 1 to 3 inches by Friday night. Fair WX is expected Saturday through Tuesday next week with the possibility of another closed low pressure system effecting our area the following Wednesday night into Thursday…..


The Dweeber……………………….:-)


Part 1 of one of the best storms of the season dumped up to 2 feet at between 15 and 20:1 over Mammoth Mt.   Hence the Platinum Powder Alert verified over night…..

Part 2 rolls in later today…then continues into tonight with amounts in inches of 5 to 8 and possibly close to a foot over the crest. Snowfall will be heaviest tonight as the upper low open into a Trof and moves through the central and southern portions of the golden state by mid morning Wednesday.  Wednesday looks snow showery in the AM with showers decreasing in the afternoon. Most of the precip will be deformation initiated and so we will not have the strong orographic effect that will often times double snowfall amounts.

This now looks to be the last in a series of storms that has brought several feet of snow to Mammoth Mt, making for the best Easter Break holiday in a long time…..

The next system Thursday night into Friday will most likely be snow showers as the storm splits and goes south. There might be any where from a dusting to an inch or two by Friday night.

Strong ridging develops Sunday into Monday next week…..Keeping the weather dry through Mid Week next week. Highs will move well into the 50s by Sunday and approach 60 by mid-week. There after, another closed low indicated by todays 12ZGFS my bring us a moderate storm about the 10th of April. Another is looming by that following Sunday.

PS If you did not take advantage of this mornings Platinum Powder, you really missed out!!!!!!!!


Dr Howard and the Dweeebs……………….