5:30PM Update:

Heavy convective snowfall still continues in the Mammoth area with amounts near 18 inches at that main lodge now and an estimated  2 feet over the sierra crest.  Therefore considering snowfall rates in the 2 inches per hours range, with another good 6 hours of it to go, expect between 2+ to 3 feet overall from this storm on Mammoth Mountain, and between 1 & 2 feet in town by Midnight tonight.  Colder temps are on the way and snowfall rates of up to 2 inches per hour will continue to about midnight tonight. At the 8200 foot level above the Village at Mammoth, I have 15 inches on my deck at mammothweather.com. The upper jet is still providing strong lift over the south central valley and the upper flow is driving it into the Sierra. ….ATM

Tomorrow will be chilly breezy with some lingering showers but no significant accumulation’s…just some light upslope showers.




The WX front took its good sweet time in coming through the Mammoth area.  Great News though…  Mammoth Mt already has about 13 inches of new wet snow since very early this morning.  Latest Sat motion has cold core low digging south East and a real nice chunk of subtropical moisture hooking up into the system. As long as the upper open trof  remains positive tilt….she will continue to pump!

Obviously this will bring a bonanza of precipitation for the greater Central and South Central CA areas. Mammoth Mt should have no problem getting up to the 18 inches forecasted. In fact…..amounts of two feet over the crest are quite possible as there is a lot of life left in this storm which will roll well into tonight…….


Wax-UM UP!!!!!!!!!!!!!!!!!!!


The Storm system for Friday will more into the Mammoth area Friday morning with two periods for precipitation. One with the weather front itself that should move through the Mammoth area by Mid Morning and the other more significant area with the upper jets front left exit region then the cold core upper low Friday night. Between both features, the QPF appears to be in the 1 to 1.5 inch range which given snow to water ratios present the possibility of some 12 to 18 inches over the upper elevations and 5 to 10 inches at 8000 feet. However, because of the antecedent warmth of our local roads pre storm…..road accumulations will probably be pretty low until Friday night when the combination of cold temperatures and the heavy snowfall begins the accumulation process more substantially.  Again the impact upon local roads will be most significant between 5:00pm Friday and 5:00am Saturday here locally.

As far as the fishing opener goes….dress extra warmly.  Early morning lows will most likely be in the upper teens to low 20s. And if there is any clearing by Sunrise Saturday it could be even colder….. There will snow showers Saturday morning with upslope along the eastern slopes of the sierra. However, the Dweebs are only expecting possibly another inch or two of snow after 5:00am Saturday…..

Rest of the weekend…..It will be breezy throughout the weekend with a chilly NW flow. Lots of over running clouds Sunday, but improving conditions later Sunday into Monday.


Fair, warm and dry Monday through Wednesday…


Dr. Howard and the Dweebs…………


Note: If you have been having problems with connecting with mammothweather.com,  it is due to capacity problems with the server…..I am going to a more robust server in the next 24 hours to prevent those problems for happening in the future……The Dweebs have so many friends!!!!  Thank You all for your interest….!