【题目】A tornado(龙卷风)is a windstorm.It is_(1) strong that no one_(2) tell how(3) the winds blow. Some of the winds may_(4) about four hundred and eighty kilometers (about three hundred miles) an hour.T ornado winds _(5) fast, _(6they do not last very long. As they ...
In supercell thunderstorms, the updrafts are particularly strong. If they are strong enough, a vortex of air can develop just like a vortex of water forms in a sink. This precursor to the tornado is called a mesocyclone, and it is typically 2 to 6 miles (3 to 10 kilometers) wide. ...
In supercell thunderstorms, the updrafts are particularly strong. If they are strong enough, a vortex of air can develop just like a vortex of water forms in a sink. This precursor to the tornado is called a mesocyclone, and it is typically 2 to 6 miles (3 to 10 kilometers) wide. ...
where tornadoes are a common occurrence. He’s lived through more tornado watches and warnings than he can count. He currently lives in Macon County, TN where the 2008 EF-3Super Tuesday Tornadodestroyed much of the western half of the county, killing 14 people, causing an explosion at a na...
Another important clue: NWS issues a tornado watch or tornado warning for an area. As they close in on the storm, the chasers will watch for several elements. One is the counterclockwise rotation of clouds typical of a supercell, evidence of strong air currents within the storm. Another is ...
What is the most dangerous kind of tornado? Tornadoes are classified as weak, strong, and violent. An EF4 and EF5, the most intense tornadoes, can produce wind speeds of 166 mph or more, according to the National Weather Service. Though violent storms only make up 2% of all twisters, ...
information: 1) the pattern of the damage, which will reveal if it was actually caused by a tornado (as opposed to some other weather phenomenon, such as a downburst) and 2) an estimate of how strong the winds were, which allows them to classify the strength if a ...
Footage released by the Manatee County Government Public Safety Department shows an EF-0 tornado ripping through a mobile home park in Bradenton, Florida on September 2. The tornado is captured taking debris off roofs and causing a transformer to blow. (Video: @MCGPublicSafety/ Twitter) ...
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These motors have strong N52 magnets and solid build quality at an attractive price point. While you can find motors for less money they are rarely worth buying. According to rumour, Emax is selling the ECO II motors at a lost, just trying to match the cheapest motors on the market. I ...