2012 8 Sandbag Construction The use of sandbags is a simple but effective method of preventing or reducing damage from floodwater and debris. (see Figure 2) Suggestions for constructing sandbag struc-tures are:1. Close-weave burlap bags 18â x 30â are recommended for all sandbag construction when available.2.
(Getty Images) A tornado watch has been issued for parts of New York and New Jersey until 5 p.m. Monday, the National Weather Service said. The watch included all five boroughs, as well as Rockland, Putnam and Westchester counties, and all of New Jersey.
What is a tornado? A tornado is a violent rotating column of air extending from a thunderstorm to the ground.The most violent tornadoes can produce massive destsruction with wind speeds of 250 mph or more. Damage paths can be more than 1 mile wide and 50 miles wide. The typical tornado moves from southwest to northeast, but they have been known to move in any direction. The average forward speed of a tornado is 30 mph but it may vary from stationary to 70mph.