Tuesday, December 10, 2024

TODAY’S WEATHER DISCUSSION AND FORECAST

..Good Morning.
..Issued: 4:08 AM Dec. 10, 2024 – National Weather Service …RED FLAG WARNING REMAINS IN EFFECT UNTIL 4 AM PST WEDNESDAY FOR STRONG GUSTY WINDS AND LOW RELATIVE HUMIDITY FOR ALL MOUNTAIN AREAS, THE INLAND EMPIRE, INLAND ORANGE COUNTY AND SAN DIEGO COUNTY VALLEYS. WINDS…Strongest winds expected this morning. Northeast and east winds 25 to 35 mph. Gusts in the Inland Empire, San Diego valleys, and inland Orange County of 35 to 55 mph. Local gusts up to 60 mph possible in eastern portions of the San Diego valleys Tuesday. Wind gusts 50 to 65 mph in the mountains and passes. Isolated gusts over 70 mph possible on Tuesday morning in wind prone locations in the mountains. Winds will be strongest in east-west oriented passes, such as the San Gorgonio Pass and San Diego County mountains and foothills.

..Currently there is a 1036mb area of High pressure over the Great Basin Region. Off of SoCal to our West we have 1024mb heights. This pressure gradient between Tonopah Nevada and San Diego will keep us in an offshore flow across SoCal today.
..Strong and gusty NE winds will continue for most of the day today. NE winds from 10mph to as much as 50mph in the wind prone areas will be possible through most of the day today. Along the Foothills, Ridges, and in the Passes will see the strongest winds.
..A RED FLAG WARNING will be in effect through Wednesday at 4am across the area.
..These winds will taper off overnight tonight becoming weaker for Wednesday.
..Thursday the winds will turn to Onshore as a Trough of Low pressure passes to our North. Gusty SW winds will increase across the mountains as the Trough moves through to the North.
..The latest model runs are now showing a chance for a few scattered light showers late Thursday into early Friday morning for parts of SoCal.
..This will be focused mainly West of the mountains as Fog develops and moves Inland across the Valley. The mountains will not likely see any precipitation other than tree rain if the Fog pushes up the front side of the mountain.
…This system will bring a chance for rain as far South as Santa Barbara County as it looks now.
..However, the Models are trending for this to dig further South this morning, so I will add a slight chance for scattered showers on Thursday, locally.
..Then Friday a weak transitory Ridge will pass across California to be followed by another Trough for Saturday and Sunday across the PAC-NW and NOR-CAL. But again, here in SoCal we will not see anything other than onshore flow and a deepening Marine layer in the Valley with a chance for more drizzle.
..LOOKING OUT LONG RANGE:
..As it looks now on the long range models, there isn’t anything in our future as far as measurable rain or snow for the next week or so after Thursday, of this week. RC
..Thanks for joining me here at lakegregoryweather.com