Long Awaited Pattern Change Just 24 hours Ahead…..Good Shot of Snow Expected for the High Country Tuesday and Tuesday Night…..Platinum Powder Alert for Mammoth Mt.
Sunday February 17, 2013
Posted at 12:51 pm by Howard
QUICK MONDAY UPDATE:
Everything on track including the storm….It will be dry today but will be increasingly windy during the afternoon…..Highs in the upper 40s in town and upper 30s on Mammoth Mtn.
Cold…Snowy…Blustery Weather Tuesday. The storm is expected to drop between 12 & 18 inches up on Mammoth Mtn and about 6 to 12 inches in Town by Wednesday AM.
For the Town….
Expect a dusting tonight….3 to 6 inches Tuesday and another 3 to 6 inches by Wednesday AM. This looks to be a two plow storm….
Temps will be colder Tuesday with highs in the upper 20s and mid twenties Wednesday and some 10 to 15 degrees colder for higher upper elevations.
Cold showery weather on and off will continue through weeks end……
Some signs of much wetter pattern developing during the 1st week of March….
Dr Howard and the Dweebs……………………………………….:-)
It’s a beautiful day today in the high country…. Winds are light and the Sun Bright… Temps will be in the 40s today with highs on Mammoth Mtn in the 30s….
Beginning tomorrow Monday, Washington’s Birthday, the winds will pick up a bit with gusts to 35 MPH on Mammoth Mt and high temps will remain in the 30s. It is expected to be dry.
Snow shower action will begin Monday Night with snowfall increasing Tuesday and into the night…… Some 12 to 18 inches of fresh could fall on Mammoth Mtn by Wednesday AM….
Temperatures will plummet behind the cold front Tuesday afternoon.
Now the details…..
The MJO has moved in the western fringes of the Maritime Continent the past 24 hours and has initiated the well awaited retraction of the East Asian Upper jet. Over the next 36 hours….the upper high over the far west will shift east to the Inter mountain West and Rockies as a Deep Upper Trof works its way southeast…down the west coast reaching the Northern California Coast by Tuesday night. A vigorous cold front will proceed the upper Trof Tuesday Afternoon with 500mb-1000MB Thickness falls down the San Joaquin valley between tonight and Late Tuesday night of about 280dm. Freezing levels will drop from 10,000 feet tonight to 2500 ft by Wednesday AM over Fresno, Ca. This is a cold bugger…… There will be plenty of wind in the high country Tuesday PM and afternoon flights “may-be” in Jeopardy by late afternoon….Because of snow and visibility. The Point Forecast for Mammoth AP Tuesday is for 3 to 5 inches and another 3 to 5 overnight Tuesday. Of particular interest is that this mornings model runs clustered on a jog to the west a bit…more like the ECMWF…so the idea is to beef up the QPF on this one. The Dweebs will take another look on Monday to see if that is consistent.
Although the storm is not expected to be a wet one precip wise, in that an inch now of QPF is possible…and the fact that it is so cold that the Snow/Water Ratios will be in excess of 15:1 for a good part of the storm……Hence the Platinum Powder alert……….
Now for the First Call… Snow-Fall Est:
The Village at Mammoth: 3 to 7 inches Tuesday and an additional 3 to 7 inches Tuesday night
McCoy Station: 4 to 8 Tuesday and 7 to 11 Tuesday Night
Looks like a 12 to 18 inch storm for the upper mountain by Wednesday Mid Morning.
The rest of the weeks will be cold and at times showery with more short wave action ahead…..
Like your edges…..Stay Tuned>>>>>>>>>>>>>>>>