Coastal Flood Advisory in Nassau County, New York
Issued by the National Weather Service and archived by Claims Pages
10/21/2026 2:26:00 AM (UTC)
Urgency: Expected
Severity: Minor
Certainty: Likely
10/21/2026 2:26:00 AM until 10/21/2026 5:00:00 PM
* WHAT...Up to one foot of inundation above ground level
expected in vulnerable areas near the waterfront and shoreline.
* WHERE...Southern Nassau County.
* WHEN...From 3 PM this afternoon to 7 PM EDT this evening.
* IMPACTS...Minor flooding in the more vulnerable locations
near the waterfront and shoreline. Some roads and low lying
properties including parking lots, parks, lawns, and homes and
businesses with basements near the waterfront will experience
minor flooding.
* ADDITIONAL DETAILS...Additional localized minor coastal
flooding possible during times of high tide on Thursday.
