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.
A tornado is a violent rotating column of air that is contact with both the ground as well as a cumulonimbus cloud. It is also known as twisters or cyclones. The base of a tornado that touches the earth is usually surrounded by a cloud of dust and debris. A tornado depending on its size can have wind speeds between 40mph and 360mph. Tornadoes often develop from a class of thunderstorms known as supercells.