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Author:
SeaDog1
Date:
Feb 09, 2013
Subject:
Danger of Heavy Snow on Ice.
Message:
Hi,
The following is excerpts from the NISDI and Minnesota DNR sites.
Heavy Snow on ice causes the ice shelf to bend and crack !
Water comes up to form "Real SLUSH" under the snow.
"Real SLUSH" occurs regardless of air temperature and does NOT and will NEVER occur from melting snow.
"Slushy Conditions" occurs from melting snow on top of ice.
Unfortunately -> Water from melting snow can percolate down thru the ice and weaken it !
Above the cracks, in the bent ice, will form an anomoly known as an "Air Hole".
"VERY DAGEROUS" and can be small or as much as 30 feet across and thin at the edges.
[img:c697aff869]http://www.ctfishtalk.com/gallery2.php?g2_view=core.DownloadItem&g2_itemId=18785[/img:c697aff869]
[img:c697aff869]http://www.ctfishtalk.com/gallery2.php?g2_view=core.DownloadItem&g2_itemId=18787[/img:c697aff869]
Stay Safe :!:
SeaDog1
Author:
androux
Date:
Feb 09, 2013
Message:
I fish a lake in WNY and it will do this, fished there twice, both times, it was 3 inches crusty snow, and inch of water, slush and about 12" of ice underneath. The whole stratum is about 18" of water at different freezing states, but you would find wide open holes at odd places. The holes wouldn't be big, almost like an auger hole, but there really wasn't much around the holes to indicate any ice depth, due to the snow cover. Sorta disconcerting as you walk out and see a random open hole when it's 20 deg.
Snowmobilers keep a keen eye on this, and they know the lakes that this happens to. Walking is one thing, but doing 50 mph and hitting a weak spot is a quick death at best. They know this and avoid those lakes, so don't always sneer at the sleds.
Author:
damage inc
Date:
Feb 09, 2013
Message:
cool post but I wonder if that is when the temp gets above 32 degrees?
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