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Reply-To: "Mike Reddin" <mreddin{at}nii.net>
From: "Mike Reddin" <mreddin{at}nii.net>
To: <casilist{at}weatherwatchers.org>
Subject: Major winter storm readies it's attack
Date: Thu, 15 Jan 1998 18:34:19 -0500
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Hi all,
Remarkable that just 12 hours prior the formation of a significant east =
coast storm, all of the short range and medium range models continue to =
differ on the strength, track and temperature structure of the storm. As =
we speak, the initial low is gathering strength near the Georgia coast. =
However; apparently this event will come together in two separate lows; =
the first [the Georgia low] will shear out to the northeast, giving the =
northern Atlantic states a wintry mix of snow/ice and rain on the coast =
and heavy snow/sleet inland. Then the second storm becomes the dominant =
system off the Delaware coast Friday morning, moving slowly northeast =
along the coast, passing east of the Cape Saturday morning. This second =
storm will wrap in considerably colder air and will change the wintry =
mix to all snow, falling heavily at times through Friday night, and =
lasting into early Saturday with occasional light snow in New England =
lasting for the balance of the weekend.
Central low pressure ends up being around 980mb by 7am Saturday, that =
represents about a 18mb drop from 7am Friday.. so just under 'explosive' =
Cyclogenesis criteria but worth watching. The 1035mb high over southeast =
Canada will weaken a big and retreat northwestward, creating a 45mb =
gradient.. this should produce widespread 30 knot winds with gusts to 50 =
knots offshore and right along the exposed coastline.
Ice? That's a big question that remains unanswered since it is still not =
clear the exact details of this storm system. But there is a warm wedge =
which will swing into New England tonight and part of Friday around =
3,000 to 8,000'. This layer will likely cause sleet and possibly =
freezing rain...
Well that's it for now, more details to follow. Watch those pressure =
falls especially tomorrow and tomorrow night!
Mike Reddin
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