Wednesday, Jan 15, 2020

 

TODAY’S LATEST SATELLITE PICTURES:

 




TODAY’S WEATHER DISCUSSION AND FORECAST:

..Good Morning.
..Today we will have a few high based clouds passing over with light and variable winds. Rain and snow is falling to our North from a deep area of Low pressure that is intensifying this morning, far to our North.
..As this system moves onshore, most of the energy will stay from Central California and North from there. Here we will be at the bottom of the Trough as it moves through the PAC-NW.
..Rain will fall late Thursday afternoon as the Trough axis moves through around 4pm. Gusty winds will accompany this passing with gusty SW winds from 15-35mph locally. Higher gusts can be expected in the normal wind prone areas up to 50mph. As the Center of this area of Low pressure moves Inland Thursday night, there will be an onshore pressure gradient of ~-10-14mbs to the Desert. This will bring strong and gusty winds downslope winds to the lee side of the San Bernardino Mountains. The Desert areas such as Johnson Valley, Antelope Valley and Victorville etc, will all have a period of strong and gusty winds through mid morning Friday. A WIND ADVISORY will be likely for those areas. Locally, a WINTER WEATHER ADVISORY will go into effect at 6pm Thursday ending at 2am Friday morning for the possibility of snow, icy roads, and gusty winds.
..As of this morning, the Freezing levels will be around the 5500′ level which means we could see snow to the ~4800′ level. Rainfall estimates are running from .35-1.00″ with the greatest amounts on the SW facing slopes due to Orographic lift there. Snow accumulations of 1-2″ will be possible from 4800-5300′ level. Above that, from 2-5″ will be possible with the greatest amounts at the higher elevation above 6200′. Above the 7000′ level 4-6″ of snow will be possible.
..Friday morning this will all clear out as a Ridge of High pressure returns to the SoCal area. Daytime temperatures will be slow to warm but the weekend should be pretty nice for our mountain region. Saturday and Sunday will be sunny and warmer with light and variable winds and mostly clear skies.
..Looking out at the Crystal Ball outlook, the next possible system to bring rain and or snow to the area, will be around the 20th as it looks this morning.
..Have a good day today and enjoy the ever changing mountain weather.
..That’s it for today. Have a good day and thanks for joining me at lakegregoryweather.com.


Yesterday’s High and Low temperatures were:
Crestline-54/31*, Playground drive WS-48/37* Twin-Peaks-53/35*, Rim Forest-55/37*, Lake Arrowhead Village-58/31*, Running-Springs-51/39*, Green Valley lake-53/28*, Big-Bear-54/22*, Wtrmn-Cyn-54/33*, San-Berdo-64/37*.



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