Why was the man late?

M Hi. I’m sorry I’m late. There was a traffic jam near the bridge. Cars were backed up for miles.
W That’s O.K. I tried to call your mobile phone, but you must’ve turned it off. Our flight has been delayed by 3 hours.
M Oh, it must be because of the thunderstorm. It’s pouring outside.
W Yes, but the weather should clear up by this evening, and at least now we’ll have time to get something to eat. I’m hungry. Let’s go get some lunch.