Coastal Flood Watch
NWS Boston/Norton MA ยท US
Details
Coastal Flood Watch In Effect From Friday Afternoon Through Saturday Afternoon
- Event
- Coastal Flood Watch
- Issued
- Onset
- Message expires
- Expected end
- Category
- Meteorological
- Urgency
- Future
- Severity
- Moderate
- Certainty
- Possible
- Response
- Prepare
Description
What
Up to one foot of inundation above ground level possible in low-lying areas near shorelines and tidal waterways (3.7 to 12.9 feet Mean Lower Low Water).
Where
Eastern Essex, Suffolk, Eastern Norfolk, Eastern Plymouth, Barnstable, Dukes and Nantucket Counties.
When
From Friday afternoon through Saturday afternoon.
Impacts
Roads remain passable. Low lying areas and roads near Nantucket Harbor, including Easy Street, may experience pockets of shallow flooding less than one foot deep.
Additional details
The exact timing for an approaching coastal low pressure remains uncertain. That will become important for peak surge around the times of high tides. Multiple tide cycles will be impacted, which combined with strong onshore flow may result in tides not lowering as well. Beach erosion will also be a concern, mainly for east-facing beaches.
Instructions
If travel is required, allow extra time as some roads may be closed. Do not drive around barricades or through water of unknown depth. Take the necessary actions to protect flood-prone property.
Affected areas
- Eastern Essex
- Suffolk County, MA
- Eastern Norfolk
- Eastern Plymouth
- Barnstable County, MA
- Dukes County, MA
- Nantucket County, MA
Public contact
- Issuer
- NWS Boston/Norton MA
- Website
- http://www.weather.gov
Message record
- Received
- Issue to receipt
- ~34s
- CAP status
- Actual
- CAP message type
- Alert
- Lifecycle
- New
- Source
- NWWS-OI
- Feed
- NWWS
- Recovered
- No
CAP routing and identity
- ULID
- 01M37TRPPAVA1DMVKMGEYF3E68
- Identifier
- urn:oid:2.49.0.1.840.0.2240f31cda240d201f27b1da7f8bab40350bd08f.001.1
- Sender
- w-nws.webmaster@noaa.gov
- Scope
- Public
- CAP source
- 211803 v2.3.0
- Handling codes
- IPAWSv1.0
- Issuing office
- NWS Boston/Norton MA
- AWIPS ID
- CAPBOX
- NWWS sequence
- nwws_processor.1854
- WMO heading
- XOUS51
- WMO data type
- CAP alert message XML (XO)
- WMO geography
- United States (US)
- WMO bulletin number
- 51
Event codes
| Name | Value |
|---|---|
| SAME | CFA |
| NationalWeatherService | CFA |
Parameters
| Name | Value |
|---|---|
| AWIPSidentifier | CFWBOX |
| WMOidentifier | WHUS41 KBOX 231909 |
| NWSheadline | COASTAL FLOOD WATCH IN EFFECT FROM FRIDAY AFTERNOON THROUGH SATURDAY AFTERNOON |
| BLOCKCHANNEL | EAS |
| BLOCKCHANNEL | NWEM |
| EAS-ORG | WXR |
| VTEC | /O.NEW.KBOX.CF.A.0004.260925T2100Z-260926T2100Z/ |
| eventEndingTime | 2026-09-26T17:00:00-04:00 |
| BLOCKCHANNEL | CMAS |
Locations
Location data
- Eastern Essex
- Suffolk County, MA
- Eastern Norfolk
- Eastern Plymouth
- Barnstable County, MA
- Dukes County, MA
- Nantucket County, MA
| Name | Value |
|---|---|
| SAME | 025009 |
| SAME | 025021 |
| SAME | 025025 |
| SAME | 025023 |
| SAME | 025001 |
| SAME | 025007 |
| SAME | 025019 |
| UGC | MAZ007 |
| UGC | MAZ015 |
| UGC | MAZ016 |
| UGC | MAZ019 |
| UGC | MAZ022 |
| UGC | MAZ023 |
| UGC | MAZ024 |