Commentary
I don't have any changes in the current thinking on Isaac. I think it will go up east of Florida and probably go in as a hurricane somewhere north of Charleston, S.C. The storm is looking big and healthy on the satellite image, and that may mean the storm could become a hurricane very quickly and may go up to a Category 2 very quickly as well.
The Euro continues to take a slower approach and takes it into the Gulf of Mexico. That's probably a 20% chance of happening at this point.
My concerns for major flooding remain for the Carolinas. Even if Isaac hits the South Carolina coast, it may get drawn into the Carolinas and sit around there for a time before heading back out to sea or into the Northeast.
A lot is on the table with this storm.

Severe weather for the Ohio Valley and Northeast today.
One more day of tornadoes, some which can be large and devastating.
Tornadoes could be worse today given the jet coming out into the Plains.
We are going into a five- to seven-day period of severe weather which will include tornadoes. We could see over 100 reports of tornadoes.
Latest map on the severe weather areas this weekend into Monday. Monday could be the big day.
Marginal severe weather the rest of the week, but the weekend could turn ugly in the Plains as the tornadoes return.
Henry Margusity
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