Could Ravens face another weather delay?

OWINGS MILLS, Md. -- The Baltimore Ravens' most frustrating opponent this season has been Mother Nature.

After the Ravens trudged through snow in their last home game, the forecast for Sunday's game against the New England Patriots is 70 degrees and a 60 percent chance of rain. There is potential for severe thunderstorms.

"Does that mean lightning? So, that could be a delay, right?," coach John Harbaugh said after Friday's practice. "I wouldn't be surprised if that happens."

The Ravens have already had two games delayed by weather this season. The kickoff for their season opener at Denver was pushed back a half hour because of lightning. Then, five weeks ago, the Ravens' game at Chicago was stopped for 1 hour, 53 minutes because of tornados in the area.

Sunday's game has major playoff implications for the Ravens. A win against the Patriots means the Ravens are playing for the AFC North title in the regular-season finale at Cincinnati. A loss could significantly hurt the Ravens' playoff chances.