http://voices.yahoo.com/safe-ice-skating-frozen-lake-2591996.html
You should never venture out on the ice without knowing without a doubt that it is safe. You can't tell just by looking at it. You can't tell by jumping up and down on it. The ice could be thick enough to support your weight in on area and not in another.
Never go out on a lake alone to skate. If you fell in no one would be there to get help to you. To test to see if lake ice is thick enough to skate on you must bring some tools with you. You will need a cordless drill and a skating pole to check the thickness of the ice. Even then, it may not be completely safe to skate on frozen lake.
Look at the ice on the lake. Is it clear, or is it more translucent than clear. If the ice is not clear it may not be safe to skate on. When you skate on any body of water, such as a lake, pond or river you are skating at your own risk. If you should fall through the ice into the frigid water, you could be pulled under the ice and no one could save you. If you do fall through the ice, try to stay calm and grab the edge of the ice where you fell through. Try not to struggle. The more you move around the colder you will get. Your clothes will act as a barrier to some of the cold temperature of the frigid water. The more you move around the water will make contact with the areas that had been protected from the cold. If you go skating on a frozen lake, never go alone. Be sure you have someone with you that can call for help. Make sure you have a cell phone. Make sure you let people know where you are skating, and when you plan to return home.
Never venture out on ice that has a layer of snow on it. The snow is an insulator. Snow acts like a blanket on the ice to keep it warm. The ice could be very weak in those spots. My last source will give you the scoop on the thickness of ice that is safe to support your weight, and the weight of a snowmobile, and the weight of a road vehicle.
In my opinion it is safer to skate on a man made or natural area that is shallow enough so that if the ice breaks you will not be in danger of drowning. When I was a child my cousins and I could skate in their back yard. My uncle would flood the back yard so that it would freeze over to make a skating surface for us. If you like to ice skate, it is much safer to go to a skating rink. If you or your child falls through the ice, it could be very dangerous. If you plan to go skating on a frozen body of water, please check out my second source.
Sources:
http://legongventures.com/ice_skating.htm
http://gf.nd.gov/education/ice-brochure.html
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The Minnesota DNR Ice Safety Chart will provide you with accepted weight load to ice thickness ratios. Keep in mind these values are intended for open water lakes, with standing water. Lakes with a strong current, or rivers are a different matter. When there is water movement under the ice, the thickness may vary dramatically in a matter of feet. The ice may be 12" thick in one spot, and 5' away where the current is swirling around a large boulder or other obstruction under the surface, the ice may be only 2-3" thick. With no indication of the impending weakness on the surface of the ice. How is a person to know whether an area is notorious for weak ice?
Talk to local residents, go to resorts in the area, the old timer that lives around the bend, people that spend a lot of time in the area will probably know where weak areas tend to be.
http://voices.yahoo.com/check-ice-thickness-765519.html?cat=6
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Watch Danger, Thin Ice! - 10 minute MN DNR ice safety video
Ice seldom freezes uniformly. It may be a foot thick in one location and only an inch or two just a few feet away.
Ice formed over flowing water and currents is often dangerous. This is especially true near streams, bridges and culverts. Also, the ice on outside river bends is usually weaker due to the undermining effects of the faster current.
The insulating effect of snow slows down the freezing process. The extra weight also reduces how much weight the ice sheet can support. Also, ice near shore can be weaker than ice that is farther out.
Booming and cracking ice isn't necessarily dangerous. It only means that the ice is expanding and contracting as the temperature changes.
Schools of fish or flocks of waterfowl can also adversely affect the relative safety of ice. The movement of fish can bring warm water up from the bottom of the lake. In the past, this has opened holes in the ice causing snowmobiles and cars to break through.
You should never venture out on the ice without knowing without a doubt that it is safe. You can't tell just by looking at it. You can't tell by jumping up and down on it. The ice could be thick enough to support your weight in on area and not in another.
Never go out on a lake alone to skate. If you fell in no one would be there to get help to you. To test to see if lake ice is thick enough to skate on you must bring some tools with you. You will need a cordless drill and a skating pole to check the thickness of the ice. Even then, it may not be completely safe to skate on frozen lake.
Look at the ice on the lake. Is it clear, or is it more translucent than clear. If the ice is not clear it may not be safe to skate on. When you skate on any body of water, such as a lake, pond or river you are skating at your own risk. If you should fall through the ice into the frigid water, you could be pulled under the ice and no one could save you. If you do fall through the ice, try to stay calm and grab the edge of the ice where you fell through. Try not to struggle. The more you move around the colder you will get. Your clothes will act as a barrier to some of the cold temperature of the frigid water. The more you move around the water will make contact with the areas that had been protected from the cold. If you go skating on a frozen lake, never go alone. Be sure you have someone with you that can call for help. Make sure you have a cell phone. Make sure you let people know where you are skating, and when you plan to return home.
Never venture out on ice that has a layer of snow on it. The snow is an insulator. Snow acts like a blanket on the ice to keep it warm. The ice could be very weak in those spots. My last source will give you the scoop on the thickness of ice that is safe to support your weight, and the weight of a snowmobile, and the weight of a road vehicle.
In my opinion it is safer to skate on a man made or natural area that is shallow enough so that if the ice breaks you will not be in danger of drowning. When I was a child my cousins and I could skate in their back yard. My uncle would flood the back yard so that it would freeze over to make a skating surface for us. If you like to ice skate, it is much safer to go to a skating rink. If you or your child falls through the ice, it could be very dangerous. If you plan to go skating on a frozen body of water, please check out my second source.
Sources:
http://legongventures.com/ice_skating.htm
http://gf.nd.gov/education/ice-brochure.html
====
The Minnesota DNR Ice Safety Chart will provide you with accepted weight load to ice thickness ratios. Keep in mind these values are intended for open water lakes, with standing water. Lakes with a strong current, or rivers are a different matter. When there is water movement under the ice, the thickness may vary dramatically in a matter of feet. The ice may be 12" thick in one spot, and 5' away where the current is swirling around a large boulder or other obstruction under the surface, the ice may be only 2-3" thick. With no indication of the impending weakness on the surface of the ice. How is a person to know whether an area is notorious for weak ice?
Talk to local residents, go to resorts in the area, the old timer that lives around the bend, people that spend a lot of time in the area will probably know where weak areas tend to be.
http://voices.yahoo.com/check-ice-thickness-765519.html?cat=6
====
Watch Danger, Thin Ice! - 10 minute MN DNR ice safety video
Some cold facts about ice
New ice is usually stronger than old ice. Four inches of clear, newly‑formed ice may support one person on foot, while a foot or more of old, partially‑thawed ice may not.Ice seldom freezes uniformly. It may be a foot thick in one location and only an inch or two just a few feet away.
Ice formed over flowing water and currents is often dangerous. This is especially true near streams, bridges and culverts. Also, the ice on outside river bends is usually weaker due to the undermining effects of the faster current.
The insulating effect of snow slows down the freezing process. The extra weight also reduces how much weight the ice sheet can support. Also, ice near shore can be weaker than ice that is farther out.
Booming and cracking ice isn't necessarily dangerous. It only means that the ice is expanding and contracting as the temperature changes.
Schools of fish or flocks of waterfowl can also adversely affect the relative safety of ice. The movement of fish can bring warm water up from the bottom of the lake. In the past, this has opened holes in the ice causing snowmobiles and cars to break through.
News | |
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Ice is seldom the same thickness over a single body of water. It can
be two feet thick in one place and one inch thick a few yards away due
to currents, springs, rotting vegetation or school of rough fish. You
need to check the ice at least every 150 feet, especially early in the
season or any situation where the thickness varies widely.
Recommended minimum thicknesses for new clear ice.
4" Ice fishing and small group activities
5" Snowmobiles and ATVs
8" - 10" Small to medium cars, and pickups.
White ice, sometimes called "snow ice," is only about one-half as
strong as new clear ice so the above thicknesses should be doubled.4" Ice fishing and small group activities
5" Snowmobiles and ATVs
8" - 10" Small to medium cars, and pickups.
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Vehicles weighing about one ton such as cars, pickups or SUVs should be parked at least
50 feet apart and moved every two hours to prevent sinking. It’s not a
bad idea to make a hole next to the car. If water starts to overflow
the top of the hole, the ice is sinking and it’s time to move the
vehicle! |
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