BOSTON — The Red Sox and Dodgers game Sunday at Fenway Park will begin in a rain delay. A message on the ballpark Jumbotron says, “Today’s game will be delayed briefly due to weather in the area. Conditions are expected to improve this afternoon. Further updates will be provided when available.”

It’s unclear when the game, originally scheduled for 1:35 p.m., will begin. Weather forecasts show the potential for rain throughout the day.

The Belgian Grand Prix is under serious threat of cancellation after heavy rain lashed Spa-Francorchamps, leading to a cancellation of the F3 round.

The Links at Groveport sits near the Little Walnut Creek which has flooded before. But it has never seen four inches in an hour.

. @NWSNewYorkNY NYers are encouraged to prepare for potential heavy rain from 12PM to 8PM today, 7/27. Periods of heavy rain may cause flooding, if so, move to higher ground. If in a basement, move to a higher floor. If traveling, use caution. Info: https://t.co/VYE0syJhuC. pic.twitter.com/3oqpiTMLpY

The heat, combined with the high moisture content, is causing the heat index values to reach up to 107 degrees on Saturday afternoon.

A bout of showers and storms will hit the Lehigh Valley on Sunday afternoon and evening, with the threat of flash flooding and high winds.