Warning Vector

High Surf Advisory

NWS Upton NY ยท US

Updated

Details

High Surf Advisory Remains In Effect Until 8 PM EDT Saturday... ...High Rip Current Risk Remains In Effect Through Saturday Evening... ...Coastal Flood Advisory In Effect Until 11 AM EDT This Morning... ...Coastal Flood Warning In Effect From 6 PM This Evening To 6 PM EDT Sunday

Event
High Surf Advisory
Issued
Onset
Message expires
Expected end
Category
Meteorological
Urgency
Expected
Severity
Minor
Certainty
Likely
Response
Avoid

Description

What

For the High Surf Advisory, large breaking waves of 7 to 12 feet in the surf zone. For the High Rip Current Risk, dangerous rip currents. For the Coastal Flood Advisory, up to one half foot of inundation above ground level expected in vulnerable areas near the waterfront and shoreline. For the Coastal Flood Warning, one to two feet of inundation above ground level expected in vulnerable areas near the waterfront and shoreline.

Where

Southern Nassau County.

When

For the High Surf Advisory, until 8 PM EDT Saturday. For the High Rip Current Risk, through Saturday evening. For the Coastal Flood Advisory, until 11 AM EDT this morning. For the Coastal Flood Warning, from 6 PM this evening to 6 PM EDT Sunday.

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. Dangerous swimming and surfing conditions and localized beach erosion. Life- threatening rip currents are likely for all people entering the surf zone. Anyone visiting the beaches should stay out of the surf.

Additional details

Moderate to major flooding will occur over multiple high tide cycles tonight through Sunday. The worst flooding is expected with the Saturday morning high tide cycle.

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

  • Southern Nassau

Public contact

Issuer
NWS Upton NY

Message record

Received
Issue to receipt
~44s
CAP status
Actual
CAP message type
Update
Lifecycle
Updated
Source
NWWS-OI
Feed
NWWS
Recovered
No
CAP routing and identity
ULID
01M3BY8RZSB2FNYFFWAMXNTRHC
Identifier
urn:oid:2.49.0.1.840.0.f5cb8aff25803c716998fe7ad961b885c6f232ce.002.5
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.6155
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
Sender
w-nws.webmaster@noaa.gov
Sent
Sender
w-nws.webmaster@noaa.gov
Sent

Event codes

NameValue
SAMENWS
NationalWeatherServiceSUY

Parameters

NameValue
AWIPSidentifierCFWOKX
WMOidentifierWHUS41 KOKX 250927
NWSheadlineHIGH SURF ADVISORY REMAINS IN EFFECT UNTIL 8 PM EDT SATURDAY... ...HIGH RIP CURRENT RISK REMAINS IN EFFECT THROUGH SATURDAY EVENING... ...COASTAL FLOOD ADVISORY IN EFFECT UNTIL 11 AM EDT THIS MORNING... ...COASTAL FLOOD WARNING IN EFFECT FROM 6 PM THIS EVENING TO 6 PM EDT SUNDAY
BLOCKCHANNELEAS
BLOCKCHANNELNWEM
VTEC/O.CON.KOKX.SU.Y.0003.000000T0000Z-260927T0000Z/
eventEndingTime2026-09-26T20:00:00-04:00
BLOCKCHANNELCMAS
expiredReferencesw-nws.webmaster@noaa.gov,urn:oid:2.49.0.1.840.0.71cdc6c1b0424b94d02b3f5ffcba54cc39a3cfe5.001.2,2026-09-24T16:13:00-04:00 w-nws.webmaster@noaa.gov,urn:oid:2.49.0.1.840.0.e35f904ae6edd7b838aec1d199449d6e83f185c9.001.1,2026-09-24T15:42:00-04:00
Locations

Location data

  • Southern Nassau
NameValue
SAME036059
UGCNYZ179