Warning Vector

Coastal Flood Warning

NWS Upton NY ยท US

Updated

Details

Coastal Flood Warning Remains In Effect Until 6 PM EDT Sunday

Event
Coastal Flood Warning
Issued
Onset
Message expires
Expected end
Category
Meteorological
Urgency
Expected
Severity
Severe
Certainty
Likely
Response
Avoid

Description

What

One to two feet and locally up to 2 1/2 feet of inundation above ground level in vulnerable areas near the waterfront and shoreline.

Where

Northeast Suffolk County.

When

Until 6 PM EDT Sunday. * COASTAL IMPACTS...Widespread flooding of vulnerable areas near the waterfront and shoreline, including roads, parking lots, parks, lawns, and homes and businesses with basements near the waterfront. Numerous road closures are likely, and vehicles parked in vulnerable areas near the waterfront will likely become flooded. Flooding will also extend inland from the waterfront along tidal rivers and bays. * SHOREFRONT AND BEACH IMPACTS...Breaking waves of 4 to 7 feet along with elevated water levels will result in areas of dune erosion and beach flooding. Splashover over seawalls and overwashes where dune structures are compromised may locally exacerbate flooding of roadways and vulnerable structures behind protective dunes.

Instructions

Take the necessary actions to protect flood prone property. If travel is required, do not drive around barricades or through water of unknown depth.

Affected areas

  • Northeast Suffolk

Public contact

Issuer
NWS Upton NY

Message record

Received
Issue to receipt
~1m3s
CAP status
Actual
CAP message type
Update
Lifecycle
Updated
Source
NWWS-OI
Feed
NWWS
Recovered
No
CAP routing and identity
ULID
01M3EFY8HNYDWRKT4WSV1E24ZB
Identifier
urn:oid:2.49.0.1.840.0.61f02e743c8435d0dbf5b4a5e23fa6bf9784e86b.005.1
Sender
w-nws.webmaster@noaa.gov
Scope
Public
CAP source
211803 v2.3.0
Handling codes
IPAWSv1.0
Issuing office
NWS Upton NY
AWIPS ID
CAPOKX
NWWS sequence
nwws_processor.5904
WMO heading
XOUS51
WMO data type
CAP alert message XML (XO)
WMO geography
United States (US)
WMO bulletin number
51

References

Sender
w-nws.webmaster@noaa.gov
Sent
Sender
w-nws.webmaster@noaa.gov
Sent

Event codes

NameValue
SAMECFW
NationalWeatherServiceCFW

Parameters

NameValue
AWIPSidentifierCFWOKX
WMOidentifierWHUS41 KOKX 260914
NWSheadlineCOASTAL FLOOD WARNING REMAINS IN EFFECT UNTIL 6 PM EDT SUNDAY
BLOCKCHANNELEAS
BLOCKCHANNELNWEM
EAS-ORGWXR
VTEC/O.CON.KOKX.CF.W.0002.000000T0000Z-260927T2200Z/
eventEndingTime2026-09-27T18:00:00-04:00
BLOCKCHANNELCMAS
expiredReferencesw-nws.webmaster@noaa.gov,urn:oid:2.49.0.1.840.0.f5cb8aff25803c716998fe7ad961b885c6f232ce.010.2,2026-09-25T05:27:00-04:00
Locations

Location data

  • Northeast Suffolk
NameValue
SAME036103
UGCNYZ079