Coastal Flood Warning for Eastern Essex to Nantucket MA (Sep 27, 2026)
If you are in immediate danger, call emergency services now.
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Areazine synthesizes this NWS weather alert directly from NOAA's official public data feed. See our methodology for full source attribution and refresh cadence.
A Coastal Flood Warning remains in effect until 8 PM EDT Sunday for seven eastern Massachusetts counties, bringing up to one foot of coastal inundation and 6-15 foot waves.
Read this weather record in 30 seconds
- Record type
- Coastal Flood Warning
- Affected area
- Eastern Massachusetts
- Issued
- September 27, 2026
- Issuing authority
- NWS Boston/Norton MA
Flood notices turn on location and timing. Treat the named area as this record's scope; do not assume nearby counties, parishes, or waterways were included.
Record status: publication date is recent, but current status is not stored on this page. Check the issuing agency's live warning service before acting because warnings can be updated, narrowed, or cancelled.
Alert Details
A Coastal Flood Warning was issued by the National Weather Service Boston/Norton MA at 3:19 AM EDT on September 27, 2026. The alert is effective from 3:19 AM EDT September 27 until 8:00 PM EDT September 27. The alert type code is CFW.
Affected Areas
The warning covers Eastern Essex MA, Suffolk MA, Eastern Norfolk MA, Eastern Plymouth MA, Barnstable MA, Dukes MA, and Nantucket MA Counties.
What You Should Do
Take the necessary actions to protect flood-prone property. If travel is required, do not drive around barricades or through water of unknown depth. Inexperienced swimmers should remain out of the water due to dangerous surf conditions.
Expected Conditions
Up to one foot of inundation above ground level is expected in low-lying areas near shorelines and tidal waterways (3.9 to 12.6 feet Mean Lower Low Water). Large breaking waves of 6 to 15 feet are forecast in the surf zone. Strong northeast winds will produce minor coastal flooding with pockets of moderate flooding over multiple high tide cycles, along with areas of severe beach erosion.
Timeline
The warning is in effect until 8:00 PM EDT on September 27, 2026, covering late today through the weekend across multiple high tide cycles.
Original source: NOAA Official Notice ↗
Related Weather Alerts
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Two cross-category peer sets, both computed from Areazine's own archive: notices with a similar body length, and notices near the same severity and agency date. These are drawn from other categories, not the same-feed Related list above.
Similar body length
Nearest notices by article body length (1,240 characters here).
Similar severity timing
Same severity (high) notices issued closest in time to September 27, 2026.
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