MSU Storm Chase Class

Monday, August 17, 2009

Ana and Bill


Tropical depression "Ana" has an uphill battle for strengthening over the next few days.

First, the system is weak and barely recognized as a closed-off low at the surface. Any organization Ana might try to gain would be wiped out by interactions with the mountains of the Dominican Republic, Haiti and Cuba. NOTE: NHC is downgraded this system to a trough a low pressure as of late this afternoon.

It is also in dry air in the middle levels of the atmosphere which makes sustained thunderstorm development very difficult.

Latest computer model guidance do have what's left of Ana emerging into the Gulf of Mexico late this week. It is at least plausible that this could reform into a stronger tropical system at this time.

Bill on the other hand is forecast to strengthen into a major hurricane over the next few days. But it really appears has if this storm will start its curve out over the Atlantic before it has a shot at the eastern U.S. The island of Bermuda will have to what Bill this weekend.

Note the the upper level winds later this week would be out of the northwest over the Ozarks so there is virtually no chance of any of these tropical systems affecting us with their rainfall.


Ted Keller
Senior Meteorologist
KOLR/KSFX-TV
Storm chasing and more at:
Ceaseless Wind

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