Large Scale Upper Trough to remain over the west the next few days with several short waves keeping unsettled showery weather going into Wednesday….The following weekend will be fair and warm…

Monday AM:   A winter weather advisory was issues by the NWS this morning, beginning at 8:00PM tonight into Tuesday AM.  2 to 4 inches of snow is expected in town tonight into Tuesday AM with up to 6 inches over the crest..

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A large-scale upper Trof will remain over the west through Wednesday with several impulses coming through our area. Snow showers and a few thunderstorms are possible in the unstable air, with even 2 to 4 inches of snow that may stick to the ground Monday night into Tuesday above 7000 feet. Daytime highs will range in the mid 40s to low 50s and nighttime lows in the 20s.  The upper low moves out Wednesday night and Thursday morning with upper ridging developing Thursday night into Saturday. Warmer than normal temps are expected over the weekend. A passing short wave Sunday will bring some wind and a bit of cooling Sunday into Monday.

 

Dr Howard and the Dweebs……………………….:-)

Warmer than Normal temperatures to Continue this week with Isolated Convection Mid-Week….Upper Trof or Cut-Off Low may Play Havoc with the Fishermen this Weekend….

An upper ridge will strengthen over the west coast toward mid week increasing heights and temperatures. At the same time, a Trough of low pressure located at 140west Monday AM will become cut-off from the westerlies. Both the Upper Level Ridge and Cut-Off Low will shift east later this week allowing the upper levels to cool somewhat, thereby increasing lapse rates and instability. As a result, Mono County will experience more afternoon build ups beginning Tuesday, with isolated showers and or a thunderstorm possible. This will be mainly during the late afternoon and before sunset. The Fishing Weekend Outlook is a bit muddled as both ECMWF and GFS global models are at odds on whether the upper low comes in as an open trough or cut off low. The former would mean a lot more wind…  Stay Tuned, as soon as the models are in agreement,  I will post the Fishmass forecast a bit later this week.

 

In the meantime,  expect highs in the mid 60s in Mammoth and lows in the 30s through this Thursday. Winds will be light.

Closed Low on Thursday will keep snow showers going untill the Sunsets Thursday Night…Expect a Rapid Warm Up this weekend setting stage for more Spring Thaw conditions…..Cut Off Low next week will Tease the Sierra with a Spring Time Thunderstorm Pattern….However Timing is unclear…Maybe Mid week or the end of the week….or ????

Short term forecast shows continued snow showers this afternoon with clearing tonight. It will be cold Thursday night with lows in the teens, then highs in the mid 50s on Friday and 60s this weekend. Winds will be light this weekend.

 

 

From a Weather Predictability point of view, Mid Spring weather patterns are such that the weatherman needs both patience and a sense of humor. A Cut off low pattern will develop next week and the timing is mid week…the weekend or maybe not at all!  Models having difficulty where the spinning top will develop and where it goes.  In the meantime, enjoy both the weather and those high temperature over the weekend, with highs in the 60s with lows moving above freezing by Sunday AM.  The weather will remain dry and warm through Tuesday at least!