Upper Ridge Aloft Will Build Through Tonight….Then begin Flattening In Response To The Next Significant Weekend System…
Tuesday March 20, 2012
Posted at 9:50 am by Howard
A short lived fair weather ridge will bring fair skies to the high country today through tomorrow morning while the next upper Trof progresses to the west coast. Both EC and GFS have come into excellent agreement on the weather system and although there does not appear to be a subtropical tap between the mainland and Hawaii “with the front that effects the Central Sierra Saturday”, there will be an active front that will come through late Saturday or Sat night with snowfall associated with the Front…..followed by another possible moisture surge associated with the upper low itself Sunday.
In the meantime, the weather will become increasingly windy Wednesday afternoon and into the night as a dry cold front moves into Mono County Thursday. The Dweebs are not sure if the front will make it as far south as Mammoth. So temperatures on Thursday will depend upon how far south it gets. IE whether or not Thursday will be warmer than Wednesday. Nevertheless, the front is expected to be dry with no measurable precipitation other then the slight chance of a few isolated showers over the crest Thursday PM.
Winds will increase further Friday as the the next Cold Front approaches the west coast from the same long wave Trof. The Cold front moves inland Saturday with the FROPA for Mammoth expected later in the day. It looks like there will be a active frontal band that will bring a period of moderate snowfall to the high country Saturday afternoon with showers Saturday Night and another area of precipitation moving in Sunday afternoon into the night. Again…at this time I would classify the storm in the moderate range. Just a WAG at this point…..12 to 18 inches over the upper elevations and 6 to 12 in town…. The Dweebs will fine tune the system’s Mammoth Lakes snowfall with a QPF forecast Thursday for the weekend.
In the longer range the following system looks stronger for middle of next week and is coming in negative tilt……
High Temps will warm into the 50s mid week then cool down in the the low 30 by Sunday.
Dr Howard and the Dweebs…………………………:-)
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Disclaimer: I have been a hobbyist meteorologist for over 30 years here in the Mammoth area and I do this for my personal enjoyment. The National Weather Service saves lives every day . . . I do not. When making important planning decisions please use information provided by the National Weather Service as they are the most knowledgeable and accurate information source available today.