Henry Margusity

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Thoughts on Leslie and Isaac

August 31, 2012; 8:23 AM ET



Isaac will unwind across the Ohio Valley this weekend. In the meantime, heavy rains will move up from Arkansas into southern Missouri where 1-5 inches of rain will fall. In some places, the rain will come to quick and hard causing flash flooding.

Over the weekend, Isaac will unwind across the Ohio Valley and become just a blob of tropical moisture that will produce scattered showers and thunderstorms, some which can cause locally heavy rains.


Leslie is the next storm to watch, but it has several hurdles to overcome for the storm to come back to the East coast. There are at least two troughs that can easily pick up Leslie and take it out to sea. If the sotorm is able to stay clear of both of the troughs, the storm can make it well to the west and get picked up by the bigger trough coming into the East next week. I am not sure right now, but given the current position and speed, I think the storm will miss the connection with the first trough and may get picked up by the second trough, but again, I can see how it misses that one two.

The views expressed are those of the author and not necessarily those of AccuWeather, Inc. or AccuWeather.com


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Henry Margusity
AccuWeather.com severe weather expert, Henry Margusity, offers the Meteorological Madness blog including detailed analysis of severe weather across the US.