A Combined South Texas/Lower Michigan Analysis, Plus Tropical…09/16/2025

Hi All! We are having some electrical issues fixed on the boat today, so I decided to type a post. I’m also thinking about redesigning my website so that you can get most of the information that I use for the briefings. Anyway, here’s what is going on this afternoon…

On the 500 mb chart, The Rex Block is still in place over the eastern states, and a Low is meandering out in the Northwest.

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The cold front out to the west is aligned with the jet stream in the Northern Plains, and back into the Rockies. the Upper level low over Virginia, and the surface low are almost stacked up (will it occlude?) So heavy rain is possible in Eastern North Carolina and the Virginia Capes.

Screenshot

High pressure is over the Upper Great Lakes, and South Texas.

The satellite of the country outlines all of the systems as well. With most of the clouds under the upper lows.

On the tropical scene, Invest 92L is looking quite healthy (see satellite below). The next area of concern has just moved off Africa. It currently isn’t in a good spot for development, but it will move into an area over the next week.

92L (red area) is expected to (90% chance) develop within the next 48 hours. The next wave (yellow area) only has a 20% chance within the next 7 days. So far the models have the first system recurving before Bermuda. It is too early to tell about the next wave, yet.

Looks like Lower Michigan should see the sky cloud up by the end of the week, but the chances of precipitation remain low (less than 10%) through Saturday. Temperatures will remain in the 80s Today and Wednesday, before the front moves through and cool things into the upper 60s to mid 70s, and gradually back into the mid 70s to mid 80s.

The chances for rain remain at 30% or less through tomorrow (Wednesday 9/17) and mainly along the Coastal Bend, with the best chances in Deep South Texas. It looks like it will remain partly sunny through the weekend, with temperatures will remain in the 90s.

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