If you were at the Jaguars game Sunday, you didn't need a thermometer to tell you just how hot it was.

Cate Waugh said she was in the bathroom at the stadium when an elderly woman appeared to have all the signs of heat exhaustion or possibly heat stroke.

"I sent someone for an EMT, and I got cold cloths and started putting them on her back, under her arms and legs," Waugh said. "I got someone to go get ice, and she kept getting sicker and sicker, and she went into the handicap bathroom and got sick and she passed out."

Waugh said she knew CPR and didn't waste any time starting it. She said it wasn't even a minute later that a paramedic came to help.

"I knew it was going to be a hot game, so I drank a lot of water," Waugh said. "There were so many people in the bathrooms, they looked like they weren't doing well."

In fact, so many people bought water that the stadium, at one point, ran out of water. First, concession stands ran out of cold water, and then warm water was out the door not long after. So there was no other choice but to offer the fans ice.

Dr. Andy Godwin, of Shands Jacksonville Medical Center, said he's not surprised that hundreds of fans were treated for heat distress at the game, which was the hottest Jaguars game ever in Jacksonville, according to team officials. In addition to the number of fans treated in the stadium, Jacksonville Fire Rescue said it took 20 people to hospitals.

"You get that many people together, there's alcohol involved, people are not thinking ahead of time a day before it's going to be hot, 'I better get ready,'" Godwin said. "But as the day occurs, they're starting to party, not keeping up with their fluids in the form of water and replacing all the loss from sweating and being out in the heat."

Godwin said once you start to feel dizzy and thirsty, it's already too late.

"That's one of the problems: You don't know you're much more likely to lose body fluids with alcohol," Godwin said. "You're going to be urinating more often and losing those fluids, and you're not replacing it with water and minerals you need."