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Freeze Warning

Status

Event Continued Active alert

Start Time

Tue 04/21/2026 02:38 AM EDT

End Time

Tue 04/21/2026 09:00 AM EDT

Significance

Warning

Impacts

High impact

Locations Affected

Philadelphia, PA ∙ Allentown, PA ∙ Reading, PA ∙ Trenton, NJ ∙ Camden, NJ ∙ Bethlehem, PA ∙ Wilmington, DE ∙ Vineland, NJ ∙ New Brunswick, NJ ∙ Perth Amboy, NJ

Full Alert Message

URGENT - WEATHER MESSAGE National Weather Service Mount Holly NJ 238 AM EDT Tue Apr 21 2026 ...FREEZE WARNING REMAINS IN EFFECT UNTIL 9 AM EDT THIS MORNING... * WHAT...Sub-freezing temperatures as low as 22. * WHERE...Portions of central, northern, northwest, and southern New Jersey and east central and southeast Pennsylvania. * WHEN...Until 9 AM EDT this morning. * IMPACTS...Frost and freeze conditions could kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold.

Technical Header

NJZ007>010-012>023-027-PAZ060>062-101>106-211300- /O.CON.KPHI.FZ.W.0004.000000T0000Z-260421T1300Z/ Warren-Morris-Hunterdon-Somerset-Middlesex-Western Monmouth- Eastern Monmouth-Mercer-Salem-Gloucester-Camden-Northwestern Burlington-Ocean-Cumberland-Atlantic-Cape May-Southeastern Burlington-Berks-Lehigh-Northampton-Western Chester-Eastern Chester-Western Montgomery-Eastern Montgomery-Upper Bucks-Lower Bucks- Including the cities of Glassboro, Moorestown, Wharton State Forest, Kennett Square, Pennsville, Reading, Chalfont, Doylestown, Honey Brook, Cape May Court House, Somerville, Millville, Jackson, Perkasie, Pottstown, Oxford, Easton, Washington, Bethlehem, Hammonton, Collegeville, Lansdale, Freehold, Camden, Mount Holly, Norristown, Flemington, Cherry Hill, Allentown, New Brunswick, Trenton, Morrisville, Sandy Hook, West Chester, and Morristown 238 AM EDT Tue Apr 21 2026