QPF was increased yesterday AM and projected amounts are in the 4 to 6 foot range for Mammoth Mt by Monday.  Winter storm conditions are developing now with most intense period tonight with AR.

longer range forecasting is having major difficulty as high latitude blocking is so differently configured in the global models. They all have the blocking, however big differences in the extended configuration has made even bigger differences in the outcome as far as forecasts.  As usual, time will tell the correct story when the models come into more agreement next week. For what ever it worth, the 6 to 10 and 8 to 14 day forecasters had a bias for the GFS ensembles which had the hits right on coming!

Ps. Watch out for possible mid latitude breakthrough of westerlies under block as we approach the Christmas Holiday…more later in coming days….







12-8-22  2:15pm

Platinum Powder Watch for Sunday


Cold Pacific storm to bring 3.5 to potentially 5 feet over upper elevations Saturday and Sunday, lingering through Monday..Travel through the Sierra Saturday afternoon to become treacherous through Sunday night.

This storm will be the largest so far this season. Because of the very cold nature of the storm, “Platinum Powder” watches are in effect for Sunday as temperatures -6C to -8C at 10000 feet are expected. Snow to water ratios of 15/1 to 20/1 are expected Sunday.  Avalanche danger will be increasing in non controlled areas this weekend.  Stay Safe. Think snow safety.

Storm track to begin favoring more southern portion of the state later next week…..