Comments on: Will Hurricane Isaac Make a Comeback?

By: Greg Laden

Greg Laden — Thu, 06 Sep 2012 14:32:26 +0000

What I’m calling ex-isaac is a low pressure system that was definitely part of Isaac, but a huge part of Isaac’s energy and moisture tracked east and north as well, and thus the statement about rain in Bostin is also correct. Yeah, even if that had not happened, the storm became sufficiently disorganized to be downgraded to extra-tropical, so it would get a new name even if it didn’t send a present to the east coast, I suspect.

The current forecast BTW downgrades the probability of cyclone formation to 40% and the forecasters are sounding less impressed this morning, but the latest satellite views show some blowing up. It will be interesting to see how this tracks through the day.

By: Eric Lund

Eric Lund — Thu, 06 Sep 2012 13:35:01 +0000

Uncle Glenny @1731: That’s what ex-Isaac was supposed to do: track up into New England and dump a bunch of rain. And part of the storm actually did do that. But some of the storm–certainly most of the vorticity–moved south.

According to the bloggers at Weather Underground, there is some controversy over whether the part that went south was enough of the storm to still be considered Isaac. Jeff Masters says that the NHC does not consider this southern fragment (currently known as 90L) to be enough of Isaac to keep that name, so if 90L becomes a tropical storm it would get a new name. Nadine is the next name on the list.

By: Uncle Glenny

Uncle Glenny — Wed, 05 Sep 2012 22:31:49 +0000

Weird, because I just heard the rain we had (last night/this morning) in Boston suburb described as “remnants of Isaac.”
The rainfall totals from wunderground in the area range from under 2 inches up to 4, mostly around 2.

By: Bacopa

Bacopa — Wed, 05 Sep 2012 22:31:05 +0000

South Texas please. East Texas has been its usual rainy self since the day last October that PZ , Hitchens, and Dawkins all spoke on the same night in Houston just a few weeks before Hitches died.

Allison did this twice back in 2000. Formed in the Gulf, blew a little and dumped a little rain on Wednesday. Back to sea only to return stronger on Friday night when it dumped 20 inches of rain in three and a half hours. Then due east which put the center of the storm over water again. Then north to flood SW Louisiana. Allison then stayed coherent enough over land to travel over 1000 miles to flood the heck out of Philadelphia.

By: Mercedes Lipira

Mercedes Lipira — Wed, 05 Sep 2012 22:27:42 +0000

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By: Eric Lund

Eric Lund — Wed, 05 Sep 2012 15:47:08 +0000

I think the last Gulf hurricane to pull such a move was Ivan in 2004. According to the archives at Weather Underground, it moved off the Delmarva coast as an extratropical low, then drifted southward, crossed Florida, and was reborn as a tropical storm before making landfall as a tropical depression in southwest Louisiana.

I wouldn’t wish a hurricane on anybody, but large parts of Texas could use a tropical storm.