Coastal Flood Warning Issued for Southwest Suffolk and Southern Nassau Counties

Alert Details

The National Weather Service in Upton, NY, has issued a Coastal Flood Warning for Southwest Suffolk and Southern Nassau Counties. This alert indicates a high likelihood of significant coastal flooding during the specified time window.

Affected Areas

The warning specifically covers Southwest Suffolk and Southern Nassau Counties in New York. Impacted areas include low-lying regions near the waterfront, shoreline, tidal rivers, and bays.

What You Should Do

Residents are advised to take immediate actions to protect flood-prone property. If travel is necessary, do not drive around barricades or attempt to drive through water of unknown depth. Vehicles should be moved from vulnerable areas near the waterfront to prevent damage.

Expected Conditions

• Inundation: 1 1/2 to 2 1/2 feet, with local amounts up to 3 feet, of water above ground level in vulnerable areas.
• Flooding Severity: Widespread moderate to localized major flooding is expected. This will likely result in numerous road closures and flooding of homes, businesses, parking lots, and parks.
• Shoreline Impacts: Breaking surf of 5 to 10 feet will cause widespread beach erosion and flooding. Dune erosion is likely, with potential washovers where dunes are compromised.
• Additional Hazards: Ice cover in bays and harbors may exacerbate flooding and cause damage to north to northeast facing shoreline structures.

Timeline

The Coastal Flood Warning is effective from 10:00 PM Sunday, February 22, until 4:00 AM EST Monday, February 23. Additional minor to moderate flooding may occur during the Monday afternoon high tide cycle.