- Strong, persistent rotation in a cloud base. (A cloud base looks like a rotating cylinder of clouds that descends below a storm.)
- Whirling dust or debris on the ground under a cloud base – tornadoes sometimes have no funnel.
- Hail or heavy rain followed by either dead calm or a fast, intense wind shift. Many tornadoes are wrapped in heavy precipitation and can't be seen.
- Day or night – Loud, continuous roar or rumble, which doesn't fade in a few seconds like thunder.
- Night – Small, bright, blue-green to white flashes at ground level near a thunderstorm (as opposed to silvery lightning up in the clouds). These mean power lines are being snapped by very strong wind, maybe a tornado.
- Night – persistent lowering from the cloud base, illuminated or silhouetted by lightning – especially if it is on the ground or there is a blue-green-white power flash underneath.
Tornadoes Don't Just Hang Out in the Alley
[caption id="attachment_18849" align="alignright" width="300"] Tornado Alley[/caption]
My family used to live in eastern Colorado, on the western edge of Tornado Alley. Every year we’d get many tornado watches and a few tornado warnings. So we were prepared. We had emergency supplies ready to grab and go, a NOAA radio on the counter and shelter plans with our children. Both my husband and I were trained EMTs and participated in a community-wide disaster exercise.
None of that helped on the day I cowered in the basement of the hospital, an hour after giving birth to my daughter, while a tornado passed nearby. Or when the same thing happened right after my son was born. I’m choosing to not consider those events omens.
Every state and nearly every county in the United States has seen tornadoes. Texas sees the most tornadoes per year, mostly due to the state’s sheer size, while Florida sees the most per area, according to NOAA. Even Alaska gets them.
[caption id="attachment_18850" align="alignright" width="300"] The Delta Center (home of the Utah Jazz) was hit by a tornado in Salt Lake City in 1999.[/caption]
Tornadoes can cross rivers, hills and cities. Numerous tornadoes have crossed the Mississippi River. An August 11, 1999 tornado in Salt Lake City crossed a canyon and hit the basketball arena for the Utah Jazz. Fortunately, no one was there.
Elevation doesn’t matter. A hiker photographed a tornado at 12,000 feet in Sequoia National Park, Calif., on July 7, 2004. Tall buildings won’t stop tornadoes, either. Downtown St. Louis has seen at least four tornadoes, according to NOAA. The Los Angeles Basin sees as many weak tornadoes per tens of square miles as the Great Plains.
Tornadoes mostly occur in the spring and summer. However, they hit every month of the year. “Tornadoes are like snowbirds — they winter in the South,” according to an April 22 article in U.S. Tornadoes.
Parts of southern California and Arizona see more tornadoes in the autumn and winter because of the seasonal monsoon. Florida gets many, in part because hurricanes can bring tornadoes. Mississippi holds the sad distinction of hosting the most deadly tornadoes in each winter month: December, January and February, according to U.S. Tornadoes.
The most important way to prepare for a tornado is to learn when one is coming. A NOAA weather radio can post updates on all kinds of weather. If you're looking for a good emergency weather radio, the Kaito Voyager Pro is an excellent choice.
On average, the National Weather Service issues tornado warnings 13 minutes prior to a hit, but warning times vary greatly. Therefore, the NWS emphasizes knowing the signs of a tornado. The following signs are taken directly from the NWS.
65 comments
Theresa Jenkins
growing up we never heard of tornados in our area (southwestern PA) Freedom ,PA … but in the last 50 some yrs there have been at least 2 reported touch downs that have done quit a bit of damage and in maybe the last 10 yrs more and more small touch downs are being reported
Beth
While living in GA, we have many tornado watches, I have not seen any here for the 10 years I have lived here. While in NY on Long Island, I can remember way back in the 60s when we had a terrible tornado. Everything was destroyed on our block that was not nailed down. We have food and water and hallway that we designated as our safe area.
Darlene Maroni
We are not very prone to getting tornados but we do have a plan if need be.
Brenda Ferguson
I live in middle Georgia, we never get tornadoes. However, I always pay attention to warnings.
Sandra Watts
I live in New York state. I do know there have been tornadoes but I have never been in one. I did fair on your quiz but learned some too so now I will be more ready and aware.
Michelleintreg
Alabama gets it’s fair share of tornadoes. I think we had 7 EF0’s hit last week without warning. Scary!! My husband is stationed in OKC, which is ground zero, it seems, for tornadoes. He’s from NYC, so this is completely new to him.
Leesa J
I live in central Ohio and we have tornado warnings fairly frequently. I think we’re relatively well prepared. We monitor bad weather and have emergency supplies in our basement.
Elizabeth G
Thanks for the info! Really helps a lot in preparation!
Pamela Rehm
I live in SC and we get a good many of them each year, especially spawning off hurricanes that hit our coastline or hitting those in our neighboring states.
Karen Adams
I live in the midwest Missouri.You must be prepared because this is Tornado alley!
Joyce McDaniel
This information is so good to know. I live in Virginia were we don’t have that many Tornados. I will now be ready if one hits our area.
Jodi Hunter
I live in Georgia, so we are at a small risk.
Russ
We try to keep food and water available during hurricane season, didn’t realize tornadoes were possible during one
Ty
We don’t see many tornadoes in PA but the last time we did, we prepared by ensuring our first aid kit was fully stocked and stocking up on food and water.
Margaret King
We live in missouri we had a tornado in our town everyone needs to be prepared.