[nicmarlo]

They are telling people to get underground which means this tornado is huge -- they only tell people to get underground when it is a F-4 high scale or F-5

I didn't know that.....

[Kwilliams]

During the 1999 tornado, they were saying that if you weren't underground, you won't survive. That was an F5.

[Bluewave]

Not necessarily true. All tornado warnings are intended to get people to shelter. Underground is always best, but not always possible.

[PhiKapMom]

I didn't know that until 1999 when Gary England on Channel 9 started yelling for people to get underground and said in all of his years of broadcasting he had never told people that before. Only had been in Oklahoma a little over a year when that one hit.