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Live from ABC News headquarters in New York City. This is Good Morning America.

We're going to begin with that extreme weather.

Ginger's tracking it all, including the tropical storm that is gaining strength and the dangerous heat.

It's on both coasts here. Right. And this is something that could impact people's health. So something to note.

In New England and the Pacific Northwest, two places where air conditioning is not in place for every single person. We've had

daily records being broken. Let's look at that list. It starts from Caribou, Maine to Augusta, Maine, where

98 degrees was reached yesterday. That's an actual air temperature. Roseburg, Oregon, 105. So we'll start

in the Pacific Northwest down into Arizona. That's where we see some of these heat alerts today from Phoenix up through Las Vegas could feel like, or not just feel like, but the actual temperature 110 to 122.

Medford could go up to 110 and then you see some of that kind of east of the cascades that could go up to 105.

So some of the numbers are big today. They'll get a break in the Pacific Northwest, at least, by tomorrow and Thursday. Now, record heat also possible, still in Interior, New England, but from Syracuse, they could break a daily record today at 95, Burlington, Caribou, and Manchester. I do want to track Tropical Storm Aaron, fifth-named storm of the season, way out there in the Atlantic, But the next couple days, it's going to charge to the west, and it will end up becoming a major hurricane by Saturday. This is north and east of Puerto Rico. And then we'll be very closely watching that high pressure system because that steers this thing. The closer it gets to it, the closer it will be to Bermuda, but the more it pushes it west and then that cold front kind of squeezes it, the closer it will be to us.

We're still more than a week away. We're going to watch it really closely.

Either way, beach plans next week, big time rip currents.

Oh wow, great morning there. I know we got a coverage, Ginger. Thank you for that.

We're going to turn now to the shooting that left three people dead outside a Target store in Austin, Texas.

The 32-year-old suspect is in custody this morning.

Our chief national correspondent Matt Gutman joins us with the latest.

Good morning, Matt.

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