It was 100-degrees in Washington D.C. yesterday, and it's been nearly that hot for more than a week.

It's so hot, in fact, that the pavement's melting.

At National airport yesterday, a U.S. Airways jet got stuck in a "soft spot" as it sat at a gate, Martin Weil of the Washington Post reports.

When the departure time arrived, one airport "tug" wasn't enough to get the plane moving. The passengers had to get off while the airport found another, bigger tug. That one had enough power to pull the plane out of its hole.

The flight left three hours late.

Here's a picture a passenger apparently posted to Twitter.