It will be warmer and drier Friday with lots of high clouds through the weekend….Sunday looks to be the Breeziest Day…Warmer than normal temps are likley well into next week.

Latest Guidance this morning continues the trend of drying and warming through Friday. Highs will move well into the 60s over the next two days, with little change in temperatures expected over the weekend. The exception is that Sunday maybe a little cooler. There is a passing short wave to our north on Sunday. The new 5/3/18 12Z GFS shows a bit stronger jet this morning for that time frame. No Doubt that there will be plenty of high cloudiness Saturday into Sunday. The upper Jet late Sunday morning was recently revised upward to 85 knots at 250MB. The Front Rt exit region favors Mammoth. This will definitely kick up some wind on Sunday.  So the emphases is on stronger breezes for late Sunday morning and especially the afternoon into the early evening based upon this mornings guidance. Like last Saturday, if your planning on Fishing the Lake Sunday, get an early start as winds should be very light at daybreak then coming up later in the morning. The strongest winds are expected out of the west, and are likely to become 15 to 30 MPH,  during the afternoon and into the early evening hours..   Mondays breezes will be light again.  Another warm up is expected Monday into Wednesday with low 70s expected at resort levels Tuesday and Wednesday.

Longer Range: (Updated 5/4/18)

Another wave of low pressure will move across to the north of us Wednesday afternoon, with more breeze expected then.  Forecast Models have backed off on the Mothers Day weather system as of this time.  In that this is a very fickle time of the year with forecast models, anything is possible.

For the time being it now looks fair and warm…

Next update, the 14th of May…..


Dr Howard and the Dweebs…………………:-)


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..


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.