A coastal flood advisory is active in New Jersey, Pennsylvania, and Delaware. Check affected counties, alert timing, and key safety updates.


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A coastal flood advisory has been issued across multiple counties in New Jersey, Pennsylvania, and Delaware, warning residents of potential flooding and water surges in low-lying coastal areas. The warning comes as storm systems build up along the eastern U.S. coastline.

⚠️ Advisory Timing and Overview

  • Issued: May 12, 2025, at 5:36 PM EDT

  • Expires:

    • For PA: May 14, 6:00 AM EDT

    • For NJ & DE: May 14, 2:00 AM EDT

Weather officials have cautioned residents in vulnerable zones to stay updated and avoid unnecessary travel near water bodies during this period.

🏞️ Affected Counties in Pennsylvania

Several counties in southeastern Pennsylvania are under high alert for potential coastal flooding.

Counties on alert include:

  • Gloucester

  • Camden

  • Northwestern Burlington

  • Delaware

  • Philadelphia

  • Lower Bucks

  • Berks

  • Bucks

  • Chester

  • Lancaster

  • Lehigh

  • Montgomery

  • Northampton

Residents in these areas are urged to remain cautious and follow local advisories.

🌁 Delaware Regions Under Advisory

In Delaware, the advisory impacts all counties, with New Castle and Salem highlighted as particularly at risk.

Important details:

  • Advisory issued: May 12, 5:36 PM EDT

  • Expires: May 14, 2:00 AM EDT

Delaware authorities have advised locals to monitor tidal activity closely and be ready for possible waterlogging in low-lying zones.

🏖️ Flood Warning in New Jersey Counties

New Jersey faces significant flood risks along its coastal counties. All counties are included under the advisory.

Counties affected:

  • Atlantic

  • Burlington

  • Camden

  • Cape May

  • Cumberland

  • Gloucester

  • Hunterdon

  • Mercer

  • Monmouth

  • Ocean

  • Salem

Local officials have activated emergency response plans to deal with possible surges and road blockages.

🚨 What Should Residents Do?

  • 🌧️ Avoid traveling through flood-prone zones

  • 📱 Stay updated through official weather channels

  • 🧰 Prepare emergency kits and secure belongings

  • 🚗 Don’t drive through flooded roads—turn around, don’t drown

FAQ

A coastal flood advisory is a warning issued when minor to moderate flooding is expected in coastal areas due to tides or weather systems.

The advisory began on May 12 and will last until early May 14. Times vary slightly by state.

The advisory impacts counties across New Jersey, Pennsylvania, and Delaware.

Avoid low-lying or waterfront areas, stay indoors if possible, and follow updates from local authorities.

Yes, Philadelphia and neighboring counties are under a coastal flood advisory until May 14, 6:00 AM EDT.

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