Weather Warnings for Delaware

Current watches, warnings, and advisories for Delaware
Alerts Updated: February 21, 2026, 7:45 pm  UTC


Coastal Flood Warning issued February 21 at 2:45PM EST until February 23 at 5:00AM EST by NWS Mount Holly NJ

Summary: * WHAT...One to two feet of inundation above ground level expected in low-lying areas near shorelines and tidal waterways. * WHERE...Kent, Inland Sussex and Delaware Beaches. * WHEN...From 9 PM Sunday to 5 AM EST Monday. * IMPACTS...At this level, widespread roadway flooding occurs in coastal and bayside communities and along inland tidal waterways. Many roads become impassable. Some damage to vulnerable structures may begin to occur. At this level, flooding may become severe enough to cause structural damage along with widespread roadway flooding in coastal and bayside communities, and near inland tidal waterways. Some locations may become isolated by the flood waters. * ADDITIONAL DETAILS...Additional coastal flooding may linger into Monday afternoon's high tide cycles.
Severity:  Severe    Effective:  February 21, 2026, 2:45 pm      Expires:  February 22, 2026, 6:00 am
Area:  Kent; Inland Sussex; Delaware Beaches


Blizzard Warning issued February 21 at 1:54PM EST until February 23 at 6:00PM EST by NWS Mount Holly NJ

Summary: * WHAT...Blizzard conditions expected. Total snow accumulations between 9 and 12 inches. Winds gusting as high as 50 mph. * WHERE...Delaware Beaches and Inland Sussex Counties. * WHEN...From 1 PM Sunday to 6 PM EST Monday. * IMPACTS...Travel could be very difficult to impossible. Areas of blowing snow could significantly reduce visibility. The hazardous conditions could impact the Monday morning and evening commutes. Gusty winds could bring down tree branches.
Severity:  Extreme    Effective:  February 21, 2026, 1:54 pm      Expires:  February 22, 2026, 3:00 am
Area:  Inland Sussex; Delaware Beaches


Winter Storm Warning issued February 21 at 1:54PM EST until February 23 at 6:00PM EST by NWS Mount Holly NJ

Summary: * WHAT...Heavy snow expected. Total snow accumulations between 13 and 17 inches. Winds gusting as high as 40 mph. * WHERE...New Castle County. * WHEN...From 10 AM Sunday to 6 PM EST Monday. * IMPACTS...Travel could be very difficult to impossible. Some blowing snow is likely which could reduce visibility. The hazardous conditions could impact the Monday morning and evening commutes.
Severity:  Severe    Effective:  February 21, 2026, 1:54 pm      Expires:  February 22, 2026, 3:00 am
Area:  New Castle


Blizzard Warning issued February 21 at 1:54PM EST until February 23 at 6:00PM EST by NWS Mount Holly NJ

Summary: * WHAT...Blizzard conditions expected. Total snow accumulations between 14 and 20 inches. Winds gusting as high as 45 mph. * WHERE...In Delaware, Kent County. In New Jersey, Camden, Cumberland, Gloucester, and Northwestern Burlington Counties. * WHEN...From 10 AM Sunday to 6 PM EST Monday. * IMPACTS...Travel could be very difficult to impossible. Areas of blowing snow could significantly reduce visibility. The hazardous conditions could impact the Monday morning and evening commutes. Gusty winds could bring down tree branches.
Severity:  Extreme    Effective:  February 21, 2026, 1:54 pm      Expires:  February 22, 2026, 3:00 am
Area:  Kent; Gloucester; Camden; Northwestern Burlington; Cumberland


The Winter Storm Watch has been replaced. Please see the latest information from NWS Mount Holly NJ on this developing situation.

Summary: The Winter Storm Watch has been replaced. Please see the latest information from NWS Mount Holly NJ on this developing situation.
Severity:  Severe    Effective:  February 21, 2026, 3:27 am      Expires:  February 21, 2026, 3:43 am
Area:  Inland Sussex; Delaware Beaches


The Winter Storm Watch has been replaced. Please see the latest information from NWS Mount Holly NJ on this developing situation.

Summary: The Winter Storm Watch has been replaced. Please see the latest information from NWS Mount Holly NJ on this developing situation.
Severity:  Severe    Effective:  February 21, 2026, 3:27 am      Expires:  February 21, 2026, 3:43 am
Area:  New Castle; Kent