Air quality in the New York City metro area continues to decline as smoke from wildfires in New Jersey and New York lingers in the air. A health advisory is in effect in New Jersey for unhealthy air quality.

New York City had a weekend of mostly blue skies marred by acrid smoke and air-quality advisories after a series of brush fires, fueled by extremely dry conditions, erupted around the region. People sensitive to pollution were advised that the air quality through Sunday could be at unhealthy levels because of smoke and particulate matter.

Throughout the metro area any outdoor burning is strongly discouraged, according to the National Weather Service, and much of southwest Connecticut is on “red flag warning,” meaning that dry, fire-ready conditions along with high winds mean brush and wildfires can spark easily and grow quickly.