It had 17 cases compared to ten at Yakima Valley Memorial Hospital. Heat exposure can cause cramping, vomiting, fever and seizures.
A doctor familiar with the symptoms doesn't think we've seen the worst of it.
"I do think that over the next week or so, especially as it sounds as though the heat's going to continue, I would expect to see these cases kind of on a rise," said Dr. John Zambito, Yakima Regional Medical Director of Emergency Department.
Doctors at Regional say they usually see an average of seven heat-related cases in a hot month.