Search results
Results from the WOW.Com Content Network
Severe thunderstorms can be assessed in three different categories. These are "approaching severe", "severe", and "significantly severe". Approaching severe is defined as hail between 1 ⁄ 2 to 1 inch (13 to 25 mm) diameter or winds between 50 and 58 mph (50
Strong/severe gale 41–47 knots 47–54 mph 75–88 km/h 20.8–24.4 m/s 23–32 ft 7–10 m High waves; dense streaks of foam along the direction of the wind; sea begins to roll; spray affects visibility Slight structural damage (chimney pots and slates removed) 10 Storm, [12] whole gale 48–55 knots 55–63 mph 89–102 km/h 24.5–28.4 m/s
Such storms are rarely severe and are a result of local atmospheric instability; hence the term "air mass thunderstorm". When such storms have a brief period of severe weather associated with them, it is known as a pulse severe storm. Pulse severe storms are poorly organized and occur randomly in time and space, making them difficult to forecast.
The overall extent of severe weather on Sunday may be most impressive-perhaps reaching a dozen or more states. Storms containing torrential downpours and gusty winds will likely first affect ...
The main threat from the strongest storms will be large hail and damaging winds. There’s also the chance of an isolated tornado. The highest likelihood of the strong to severe storms will be ...
Severe thunderstorms and flooding rainfall are pounding a large portion of the central and southern United States Monday, including areas still recovering from destructive storms over the weekend.
"There remains some uncertainty on whether storms will become strong to severe, though if they do, they could produce a tornado or two, large hail, and damaging winds."
Severe thunderstorms can result in the loss of life and/or property. Information in this warning includes: where the storm is, what locations will be affected, and the primary threat(s) associated with the storm. Tornadoes can also and do develop in severe thunderstorms without the issuance of a tornado warning. Severe weather statement SVS