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A severe thunderstorm warning indicates the warned area is in impending danger from hail or wind speeds meeting warning criteria as well as from lightning and hydrological impacts associated with the storm cell. Severe thunderstorms can and do produce tornadoes without warning. [2] While not all severe thunderstorms produce tornadoes, they can ...
Severe storms sweep across the U.S. each year, bringing lightning, flooding, deadly tornadoes and hail. Lightning, thunderstorms, flooding kill hundreds each year. Experts share tips to stay safe ...
A severe thunderstorm watch ( SAME code: SVA) is a statement issued by weather forecasting agencies to advise the public that atmospheric conditions in a given region may lead to the development of severe thunderstorms within (or near) the region over several hours. The criteria for issuing a watch varies from country to country and may also ...
A severe thunderstorm warning is issued if a thunderstorm becomes severe, or will soon turn severe. In Canada, a rainfall rate greater than 50 millimetres (2 in) in one hour, or 75 millimetres (3 in) in three hours, is also used to indicate severe thunderstorms. Severe thunderstorms can occur from any type of storm cell. However, multicell ...
Watches usually cover a large area where severe weather conditions could develop. Kidding aside, a watch means conditions are favorable for severe weather/flooding to develop while a warning means ...
Avoid electrical equipment. If a storm is imminent, avoid using all electrical equipment, including refrigerators, dishwashers, washing machines, and television sets, and stay away from them ...
The difference between tornado watches and warnings is similar to severe thunderstorms. A tornado watch means “severe thunderstorms and tornadoes are possible in and near the watch area ...
Severe thunderstorm warning (SVR) – A severe thunderstorm is indicated by Doppler weather radar or sighted by Skywarn spotters or other persons, such as local law enforcement. A severe thunderstorm contains large damaging hail of 1 inch (2.5 cm) in diameter or larger, and/or damaging winds of 58 mph (93 km/h) or greater.
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