* WHAT. Sub-freezing temperatures in the upper 20s and low 30s possible. * WHERE. In Connecticut, Northern Fairfield, Northern Middlesex, Northern New Haven, and Northern New London Counties. In New Jersey, Western Bergen and Western Passaic Counties. In New York, Northern Westchester, Orange, Putnam, and Rockland Counties. * WHEN. From late Wednesday night through Thursday morning. * IMPACTS. Frost and freeze conditions could kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing.

* WHAT. Sub-freezing temperatures as low as 27 possible. * WHERE. In Connecticut, Hartford CT, Tolland CT, and Windham CT Counties. In Massachusetts, Northern Bristol MA and Western Plymouth MA Counties. In Rhode Island, Eastern Kent RI, Northwest Providence RI, Southeast Providence RI, and Western Kent RI Counties. * WHEN. From late Wednesday night through Thursday morning. * IMPACTS. Frost and freeze conditions could kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing.