Gusty winds develop ahead of a cold front that will usher in rain showers and a few thunderstorms by late Sunday and into tonight, the National Weather Service said. Some of the storms could produce flooding downpours, according to the weather service.

The National Weather Service is warning of hazardous wind conditions and a potential thunderstorm for the Lehigh Valley on Sunday, with heavy rain expected later in the evening. A wind advisory is in effect until 9 p.