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.
TORNADO INFORMATION FOR SCHOOLS. A tornado is a cell of violent high velocity winds that has developed in a massive storm front. usually containing severe thunder storms. A tornado will usually have a maximum wind velocity. between 125 and 200 miles per hour, progress across the countryside at 40 to 60 mph, 90%.