J.J. Watt isn’t physically in Houston right now, but his heart is. He’s raising money to help the region recover from the devastation Hurricane Harvey has caused.

Watt tweeted a video in which he talked about the storm and the horrific flooding and damage in Houston:

“It’s very difficult, not only because we have family and friends back there,” Watt said. “Some guys have young kids. Some guys have wives and families. But that’s our city. It’s very tough to watch your city get hit by such a bad storm and not be there to help.”

So Watt decided he would help as much as he can.

“So what I do want to do is, I want to start a fundraiser, because I know that these recovery efforts are going to be massive,” Watt said. “I know that there are going to be a whole bunch of people we need to help get back on their feet. I know there’s going to be a lot we need to do to help rebuild.”

Watt set up a fundraiser through YouCaring and set a goal of $200,000. Within two hours, that goal had been met, so Watt raised it to $500,000. The response was overwhelming:

The flooding in Houston is widespread and destructive, and it’s not over. Some areas could get over 50 inches of rain from this storm when it’s all said and done. At least five people have been confirmed dead, and many are still trapped by the high water. The damage is catastrophic.

As of this morning, over $300,000 has been raised through Watt’s efforts, and that number continues to grow. If you want to contribute, you can do so through Watt’s YouCaring campaign, and here are some other ways you can help.