Spinning clouds might be a good sign, high winds, it might be very calm outside or have strange colors in the sky. Another good sign is if you put it on a local tv channel and there are warnings all over that tell you to go to the basement or get away from windows. That usually gives it away. I wouldn't be hanging out on yahoo answers if I was about to do a Wizard of Oz though. Good luck!
2007-05-01 13:04:01
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answer #1
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answered by Lost Poet 6
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Big hail is associated with intense updrafts. Tornadoes come from the storms with intense updrafts, near the intense updraft. Hail also falls near the intense updraft. Therefore, large hail means the portion of a storm that can produce a tornado is near you.
After the hail there will be a period of no rain because the intense updraft doesn't allow precipitation to fall. This is where the tornado will be. If it is poring outside then you probably are not going to be immediately threatened by a tornado.
A greenish sky is common among storms with large hail which means that a green sky could mean a tornado threat.
The tornado will come from a lowering of the base of the clouds called a wall cloud. In a potentially tornadic storm the wall clouds and clouds around it should be rotating.
5-10 minutes before a tornado comes down you will see a clear slot with sunlight and maybe crepuscular rays coming throught it in the wall cloud. This is from the from the Rear Flank Downdraft (RFD).
A tornado warning is also something that could be useful in knowing if you're in danger of a tornado.
2007-05-01 23:55:22
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answer #2
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answered by Anonymous
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Supercells are most likely to produce tornadoes. Supercells have a very strong updraft region where there are no precipitations called BWER (bounded weak echo region). Around this region are moistures that are wrapped around the updraft and these moistures produce clouds called Wall Clouds. From these clouds, you'll see tornadoes forming.
So basically, if you see a large thunderstorm above you and you experience a strong straight winds but no precipitation, you're in the region where tornadoes can form.
You'll see Wall Clouds slowly rotating counter-clockwise. You can't tell if a tornadoes will form or not by looking at the color of the clouds. All that's bull. You need to look for clouds that are rotating (Wall Clouds).
2007-05-02 03:04:34
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answer #3
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answered by John L 2
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Very bad storm clouds, particularly with a greenish cast.
Strong and fitful winds.
If you have a regular television antenna, change it to channel 13. Turn the brightness down until the screen just goes dark. Then turn to channel 2. When a tornado approaches, you will see static and flashes.
2007-05-01 20:04:15
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answer #4
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answered by TychaBrahe 7
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Usually the sky will have a greenish tint to it. And normally there is a "calm before the storm", meaning that before one hits it usually gets really quiet for a couple of mintues....but not always. Listen to the weather and keep an eye on the radar for where you're at @ www.weather.com , enter your zip code and it will give you any active warnings for your area.
2007-05-01 20:04:48
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answer #5
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answered by CrystalDawn 3
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greenish clouds, lots of hail beforehand. if the sky is green, there is wind and a tornado watch, and it starts hailing, hide. there is almost certainly a tornado on the way.
2007-05-01 22:36:15
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answer #6
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answered by Ewaj 3
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red or dark clouds maybe purple a train noise a slight funnel at first. spinning. and wind rain and bad weather.
2007-05-01 20:02:41
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answer #7
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answered by kenzduke96 4
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Silence and funnel clouds. You'd better take cover NOW!!!
2007-05-01 20:02:16
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answer #8
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answered by Nina1999 3
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loud noise that sounds like a jet plane, hail, increased wind, debris flying....ears popping.
2007-05-01 20:02:58
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answer #9
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answered by sugarplumfaerie52686 4
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http://www.srh.noaa.gov/srh/jetstream/mesoscale/tornado.htm
http://www.nssl.noaa.gov/edu/safety/tornadoguide.html
2007-05-02 01:09:18
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answer #10
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answered by NWS Storm Spotter 6
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