Coastal Flood Warning Issued for Kent and Sussex Counties in Delaware
According to the U.S. Census Bureau's American Community Survey (ACS) 5-year estimates, the CDC PLACES population-level health analysis, and the CMS Hospital Compare quality data, Areazine publishes editorial articles drawing on more than 19,000 U.S. city profiles. See our methodology for full source attribution and refresh cadence.
A Coastal Flood Warning is in effect for Kent and Sussex counties from Sunday night through early Monday, with one to two feet of inundation expected in low-lying areas.
What this NWS weather alert tells you, and what most readers miss
This notice was issued by NOAA on February 27, 2026 and geographically references Delaware. Its severity classification of "high" signals how the issuing agency weighs the risk of harm if no action is taken — "critical" and "high" tier alerts typically carry direct consumer actions, while "medium" and "low" tend toward informational guidance or monitoring advisories. The category it belongs to — Weather Alerts — determines the regulatory framework behind it, which shapes what remedies (refunds, replacements, recalls, evacuations) are available to affected individuals and who holds statutory responsibility for enforcement.
Most readers skim a notice like this, check whether they are personally affected, and move on. The more useful lens is to read it as a data point about the issuing system: how quickly NOAA detected the hazard, how precise the geographic or product-identifier scope is, and whether similar notices have clustered in the same category or region in the last 90 days. Cluster patterns frequently precede a broader regulatory action — a single localized NWS weather alert is isolated; three of them within a quarter often indicate a supply-chain, infrastructure, or seasonal driver that will keep producing notices until something structural changes.
For decision-making, Areazine pairs each alert with the original agency URL, the full agency name, and a timestamp so you can verify the notice against the primary source before acting on it. Tags on this item (weather, alert, Coastal Flood Warning, Delaware) map to related alerts in the same area of risk — browsing them together gives a clearer picture than any single notice alone, because the shape of an ongoing issue only becomes visible across multiple sequential alerts.
Alert Details
The National Weather Service in Mount Holly, NJ, has issued a Coastal Flood Warning for portions of Delaware. This alert indicates that moderate or major tidal flooding is occurring or imminent in the warned areas.
Affected Areas
The warning covers the following geographic regions in Delaware:
- Kent County
- Inland Sussex County
- Delaware Beaches
What You Should Do
Residents in the affected areas are urged to take immediate action to protect life and property. Be prepared for rising water levels and follow all recommendations from local emergency management officials.
Safety Warning: Do not drive your vehicle through flood waters. The water may be deeper than it appears, and driving through it puts you in danger while risking significant and costly damage to your vehicle.
Expected Conditions
- Inundation: One to two feet of water above ground level is expected in low-lying areas near shorelines and tidal waterways.
- Roadway Impacts: Widespread roadway flooding is anticipated in coastal and bayside communities, as well as along inland tidal waterways. Many roads are expected to become impassable.
- Structural Impacts: Some damage to vulnerable structures may occur. Flooding may become severe enough to cause structural damage in some locations.
- Isolation: Certain locations may become isolated by rising flood waters.
Timeline
The Coastal Flood Warning is effective from 9:00 PM Sunday to 5:00 AM EST Monday. Additional coastal flooding may linger into the high tide cycles on Monday afternoon.
Original source: NOAA Official Notice ↗
Related Weather Alerts
All Weather Alerts →Frequently Asked Questions
Common questions about this NWS weather alert.
What is this NWS weather alert about? ▾
Which agency issued this alert? ▾
How severe is this alert? ▾
What area is affected? ▾
Where can I find more Weather Alerts updates? ▾
Primary source data
EPA Outdoor Air Quality Data
Federal monitoring network — every measurement we report
AirNow (EPA / NOAA)
Real-time AQI for every monitored U.S. location
National Weather Service
Active watches, warnings, and advisories — NOAA
CDC Air Quality & Health
Health-impact reference behind every AQI category