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Tornado - Wikipedia


A tornado is a violently rotating column of air that rotates while in contact with both the surface ..... Most significant tornadoes form under the storm's updraft base, which is ... Night-time ...

Severe Weather 101: Tornado Basics


Because wind is invisible, it is hard to see a tornado unless it forms a ... Tornadoes can also happen at any time of day or night, but most tornadoes occur between ... severe non-tornadic winds, unusually frequent lightning, and flash floods.

Severe Weather 101: Tornado FAQ


Frequently asked questions about tornadoes, from the NOAA National Severe Storms ... to occur in every state in the United States, on any day of the year, and at any hour. ... wind speeds can be as high as 300 mph in the most violent tornadoes. ... Although the process by which tornadoes form is not completely understood, ...

12 Twisted Tornado Facts - Live Science


Jun 18, 2009 ... Twelve facts about when, where and how tornadoes form, as well as ... Although tornadoes are more frequent in the afternoon, they can ... While tornado season — the time of year that historically produces the most tornadoes — runs ... 1974, when a two-day "Super Outbreak" of 147 tornadoes killed 308 ...

Night thunderstorms: Top things to know | Earth | EarthSky


Jul 27, 2015 ... Cloud-to-ground lightning might be common when thunderstorms happen after dark. ... during the warmest time of day, the “heat of the day,” from mid-day to late in the afternoon ... Tornadoes, however, are much more likely during the day, ... Thunderstorms are most likely to form when the temperature of the ...

Prepare for a Tornado | Weather Underground


Most tornadoes are abrupt at onset, short-lived and often obscured by rain or darkness. .... Tornadoes form under a certain set of weather conditions in which three very different types of ... Although they are possible any time of the day or night, tornadoes tend to occur in the late ... They are most common from 4pm to 9pm.

I often hear the term "lift" - USATODAY.com


Q: Is there a specific time of day that most thunderstorms occur? .... those that produce 3/4" hail or larger, winds 58 mph or greater or tornadoes. .... Supercells are most common in the Great Plains and desert states of the USA, but they can form ...

Questions on Thunderstorms and Severe Weather


But as you mentioned, most occur in the central part of the nation. ... What time of year are tornadoes common in Florida? .... Since many severe thunderstorms do form late in the day, and many tornado-producing thunderstorms also contain ...

Tornadoes | Weather Wiz Kids


Most strong and violent tornadoes form within this area of strong rotation. ... vortices”, which are small, individual tornadoes rotating around a common center. .... Tornadoes can happen at any time of the year and at any time of the day.

Tornadoes - Weather Wiz Kids weather information for kids


Most strong and violent tornadoes form within this area of strong rotation. ... " multiple vortices", which are small, individual tornadoes rotating around a common center. ... Tornadoes can happen at any time of the year and at any time of the day.

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Thunderstorms, Tornadoes, Lightning... - Lightning Safety - National ...


Waterspouts are tornadoes that form over warm water. Water spouts can move ... Tornadoes can occur at any time of day, any day of the year. □ Have a plan of .... Lightning fatalities are most common during summer afternoons and evenings.

Chapter 19 Tornadoes Tornado Formation in Supercells


What kinds of storms do tornadoes form in? ... What other processes must occur for a tornado to form? .... What time of day are tornadoes most common? Why do  ...

About Tornadoes | Weather Underground


View More Tornado Photos ... Frequently Asked Question. Where do tornadoes most often occur in the United States? ... How do tornadoes form? ... However, tornadoes have occurred in every month and at all times of the day or night. A typical time of occurrence is on an unseasonably warm and sultry Spring afternoon ...