Tornadoes and large events

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I'm not sure if anyone noticed, but yesterday the Nashville Predators NHL Hockey team were playing a home game against the Carolina Hurricanes. During the game, a Tornado warning was issued, and approximately 14,000 fans were in the Sommet Center.

From NHL.com:

Late in the third period of Nashville's 1-0 victory over Carolina on Tuesday night, announcements were made at the Sommet Center that downtown Nashville was under a tornado warning. Fans were told to stay in the arena until given permission to leave.

After the final buzzer, it was again announced that no one would leave the arena until there was news that the weather threat had passed. The fans were evacuated from the main seating area after the game, and allowed to leave the arena shortly after.
Fans and players could hear the thunder and the warning sirens.
"One of the referees came over with nine minutes to go and said we might have to evacuate because of the weather," Predators coach Barry Trotz said. "At that time, it was still 0-0 and some of the guys on the bench thought maybe each team would be given a point and we would go right to the shootout.

The question is, what do large event centers, such as the Sommet Center, and other large events do to handle severe weather events? For example, if a tornado were to strike in Downtown St. Paul near the Xcel Energy Center, for those of you who have been to the "X", almost the entire west and southwest side of the building is all glass. If the arena were to be hit by strong enough winds, break the glass, the roof would have to go somewhere, and it would come crashing down. Well, I can tell you 18,568 fans (the average attendance at a MN Wild game) would not fit into the lower concourse.

While yes, I am focused in on hockey, this is only because it recently affected a game. What happens at, for example, baseball stadiums, etc? You can't exactly stick 60,000+ people at a NFL game under some sort of cover at an open-air stadium?

For those of you in emergency management, this brings up a good point - where do you stick that number of people to keep them safe in the event of a severe weather event?
 
I just read about that in my local newspaper earlier tonight. I am perfectly comfortable in my car when chasing since I have numerous (hopefully) ways to get out of an danger I may get into, but being essentially 'trapped' in a stadium or arena like that with the threat of a tornado nearby, it'd scare the crap out of me.

Like you said, there just isn't anywhere to safely put all those people. At home I'm fine because I can just dive in the closet if I need to, but in an arena, with the wide open area over the main floor, all the glass, the ease at which the tornado to could most likely peel that roof off like a can of sardines, or even collapse it.

And also think about open air stadiums in the MLB and NFL. Just think of the possible terror the winds of a tornado impacting the stadium could have in the tunnels inside and around the stadium. I'd hate to think of what havoc would be caused from the winds tearing through the tunnels.

And this topic is something that I have noticed has occurred a number of times already. If I remember right, back in 2004 around Indianapolis, the Memorial Day Outbreak, there was the Indy 500 and an NBA game between Indiana and New Jersey, and throughout the game and race, there was tornado warning after tornado warning issued for areas in and around the entire Indianapolis area.

I remember reading about how the fans at the NBA game never even knew about the tornado warning until either they walked outside and heard the sirens or they heard from friends and family via cell phone.

As well, at the race, people were warned via the signs around the Speedway to evacuate the premises due to approaching severe storms and possible tornadoes. So they moved the people from the stands, to a parking lot full of cars with a F3 tornado that passed only 6 miles away from the Speedway.

I remember a lot of debate about this, because it wasn't good no matter what. 125,000 people in completely open air stands, or 125,000 people in their cars in packed parking lots.

But a lot of people really lucked out that day. 6 miles in the other direction, and there would be a 125,000 person large target for that tornado, as well as the Indiana Pacers arena with all of the people in there who didn't know of the warnings and the nearby threat.

I never did hear what, if any policies were created regarding the Indy 500 and in regards to games, concerts and such after that whole event, even though, especially in regards to the Indy 500, there isn't really any place to put that many people and at least somewhat protect them until the threat passes.
 
Day 2 of the National Severe Weather Workshop this year features a presentation from Les Lemon about Large Event Venues and Severe Weather.

It wouldn't surprise me if the Memorial Day 2004 outbreak is brought up.
 
There was an article/presentation I read/saw recently about this very topic. The day in November 2-3 years ago where the tornados went through Iowa almost hit the ISU football field around game time. I remeber the coach of the opposite team making a comment that ISU actually brought a real cyclone to the game. They had a plan in place and multiple mets forecasting for the stadium. The tornado missed the stadium but passed within a mile I believe. The presentation was given at the Iowa NWA conference, now that I think of it. Also, there was a derecho event that passed through St. Louis recently during a St. Louis Cardinals game. This caught everyone there by surprise and there is a video of a person getting bowled over by a trash can.

http://www.youtube.com/watch?v=IK_DWLa6b-c
 
And...in 2005 the remnants of hurricane Cindy spawned a tornado that made a direct hit on the Atlanta speedway- causing millions in damage. NASCAR has the largest populations of our sporting events and a great deal of people are camped out in, you guessed it, mobile homes- quite literally. Think of all the RVs and other truly mobile homes that a NASCAR event has in place. I suppose it is all just a matter of timing and luck- obviously had there been a race planned for that day in July 2005, then the tornado would have taken many lives. As it was, the speedway was empty.

I think it would be interesting though to look at other dangerous weather phenomenon and their chances of impacting a major sporting event or outdoor concert. Hail, lightning, strong winds and tornadoes are certainly all capable of causing big problems.
 
I remember that derecho passing through St. Louis. Every time I see that video of guy getting taken out by the trash can, you realize just how tough mother Nature can be to you, even when you feel "safe" like that guy most likely did. At least he was alright after that. Though I'm sure he had a nice bruise or two.
 
I think you guys are mis-using the word derecho quite excessively. (insert rdale moment) The size and longevity of the storm system really isn't close to that of a derecho. In fact the combined damage paths are very little more than the size of the St. Louis metro.

I remember that derecho passing through St. Louis. Every time I see that video of guy getting taken out by the trash can, you realize just how tough mother Nature can be to you, even when you feel "safe" like that guy most likely did. At least he was alright after that. Though I'm sure he had a nice bruise or two.
 
That would be my error and you are correct. Working nights causes the brain to do some funny things. Derecho was just the first thing that popped in my head. Looking back at the SPC archives, I remember the event. It was an MCS that started out over southern MN and then took a SE track then turned south and finally SW slamming into St. Louis. Definately not a derecho, but still a powerful storm. Is anyone else having trouble getting the radars to load in the SPC event archive or is it just me?
 
Working with the local Emergency Management, the first weapon is advance notice. If I get a hint a few days before a possible stormy situation, I let the directors know. If I know of a major outside event coinciding, I really emphasis the threat. We have one really large outdoor event during Memorial Day weekend (Gus Macker, for you who know what I'm referring to.) An estimated 10-20,000 people in a square mile area in a downtown area (no basements.) Basically, I stare at the radar and if there is a hint of any kind of strong storm, I let the higher ups know. They move everyone to shelter, whether it's parking garages, lobbies, or anything to provide some shelter. Basically, anything is better than nothing.
Fortunately, that is as large as we get. Can't imagine pro sports events and the logistics involved.
 
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