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We hoist, huge drought busting rains with potential coastal flooding. Sep 29-30


Ginx snewx

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962mb and moving north at 138.. Weird stuff going on. Powderfreak will agree this scenario is tossed. Strung out and crazy looking.

Yeah it's just too weird. There's like 4 low pressures in the Atlantic meandering around.

But still 12"+ rainfall for parts of VA/NC.

Finally getting some rain into New England at hour 144.

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outflow is definitely increasing with Joaquin now on sat. Cloud tops are doing okay and overall organization is improved. Definitely jogging southward it appears. It's a genuine possibility that this thing sits too far south, moves to slow to impact us in the way we may have thought. Good reason why everyone said a good soaking is nearly definite but pump the brakes on a tropical landfall in SNE.

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Euro would favor the CT Valley for round 1...a bit different than other guidance. It keeps the BL winds southerly for the bulk of round one while other guidance has us on the cool side pretty quick and it's more of a NE wind. Although the 06z GFS trended that way...keeping the first wave of LP a little more westward.

 

IF round1 stays a bit west with the wave, then we'll probably see good enhancement in the CT River valley...esp up into S VT. IT also focuses the bulk of convergence from the front itself in CNE/NNE...so we'd likely only get a more brief round of heavy rain in SNE int hat scenario. But this isn't even talking about anything beyond 48-54 hours...there's obviously another part to the system.

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Euro would favor the CT Valley for round 1...a bit different than other guidance. It keeps the BL winds southerly for the bulk of round one while other guidance has us on the cool side pretty quick and it's more of a NE wind. Although the 06z GFS trended that way...keeping the first wave of LP a little more westward.

 

IF round1 stays a bit west with the wave, then we'll probably see good enhancement in the CT River valley...esp up into S VT. IT also focuses the bulk of convergence from the front itself in CNE/NNE...so we'd likely only get a more brief round of heavy rain in SNE int hat scenario. But this isn't even talking about anything beyond 48-54 hours...there's obviously another part to the system.

Ens numbers on GEFS , Euro, GEPS, are insane. Can you recall outputs like this? I can"t

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I think round 1 favors west, but have to watch for those lows that sort of move NE as a blob of heavy rain and convection and shift the axis around. We saw that twice this summer already. Some of the meso models do that.

Well it's basically a forgone conclusion that NW sees one max from the quasi stationary front. What is still uncertain is whether there is another max over SNE somewhere. The runs that try and push the low over the south coast and cape would argue for another max over SNE. Probably somewhere in E/C MA and RI up into SE NH. The euro scenario of the low further west doesn't really give a second max down in our region. Just a shot of heavy rain.

This is only talking inside of 60h of course. The second part is pretty convoluted and could give a lot of heavy rain too.

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Well it's basically a forgone conclusion that NW sees one max from the quasi stationary front. What is still uncertain is whether there is another max over SNE somewhere. The runs that try and push the low over the south coast and cape would argue for another max over SNE. Probably somewhere in E/C MA and RI up into SE NH. The euro scenario of the low further west doesn't really give a second max down in our region. Just a shot of heavy rain.

This is only talking inside of 60h of course. The second part is pretty convoluted and could give a lot of heavy rain too.

Good day to review this http://www.erh.noaa.gov/box/orographic_rainfall.htm

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