Cut-Off Low west of the Gorge: impact of Bay Area and Southern California winds.

Cut-Off Low usually have a bad rap but…… by Mike Godsey Cut-Off Lows  form when a counter-clockwise spinning low pressure pinches off from passing upper troughs at around 18K feet. The winds at about 18K feet on the average are important in moving weather from west to east around the world. Once you have a Cut-Off Low to…

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New tropical wave out in Atlantic

Using this loop over inter-tropical convergence zone – I’ve been watching a low level circ for the last day or so, and now it has become an area of interest. http://tropic.ssec.wisc.edu/real-time/mimic-tpw/natl/anim/latest72hrs.gif With strong Bermuda High remaining in control over Atlantic, this could be a system worth watching over the next few days. Very low chance…

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Marine surge, part 2: How to turbocharge a marine surge. by Mike Godsey

For a basic understanding of how marine surges in the Bay Area develop you should read the blog below entitled : Anatomy of a marine surge”. The marine surge that swept into the San Francisco Bay Area June 3, 4 and 5 was exceptionally strong. As you can see in the video below Sherman Island in the Delta held winds averaging…

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1 week, 2 heat waves, 2 marine surges each turbocharged by one nagging Cut-Off Low + 2 eddies.

Goooooood morning Rio Vista!!!  After 4 days of Ben and I issuing marine surge alerts for Sunday I pulled the final trigger Saturday night: Forecast 7PM Saturday: “Marine Surge Alert! Sherman will absolutely RAGE all day tomorrow.” These images below, really layout the basic anatomy of a marine surge. 10 years ago marine surges always caught us…

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