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.
Although most people think of tornadoes as the violent rotating columns of air on land, tornadoes can also occur on water. A waterspout is a type of tornado that forms over water. These tornadoes are usually weak, but can cause damage to boats and recreational vehicles.ost all of the large hail and extremely violent tornadoes are as a result of a supercell thunderstorm. These storms often feature wall clouds and mammatus clouds. While a dust devil is not a tornado in the strictest sense of the term, it is a type of vortex.