Coastal Flood Warning
NWS Upton NY ยท US
Details
Coastal Flood Warning Remains In Effect Until 6 PM EDT Sunday... ...High Surf Advisory Remains In Effect Until 8 PM EDT Sunday... ...High Rip Current Risk Remains In Effect Through Sunday Evening
- Event
- Coastal Flood Warning
- Issued
- Onset
- Message expires
- Expected end
- Category
- Meteorological
- Urgency
- Expected
- Severity
- Severe
- Certainty
- Likely
- Response
- Avoid
Description
What
For the Coastal Flood Warning, 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. For the High Surf Advisory, large breaking waves of 7 to 14 feet in the surf zone. For the High Rip Current Risk, dangerous rip currents.
Where
Southwest Suffolk and Southern Nassau Counties.
When
For the Coastal Flood Warning, until 6 PM EDT Sunday. For the High Surf Advisory, until 8 PM EDT Sunday. For the High Rip Current Risk, through Sunday evening. * COASTAL FLOOD IMPACTS...Widespread moderate to major flooding of vulnerable areas near the waterfront and shoreline. There is an elevated threat to low lying properties. Flooding could extend inland from the waterfront and shoreline into areas that typically don't experience coastal flooding. Flooding will likely be exacerbated along north facing shorelines from wave action, particularly for the barrier island from Atlantic Beach, Long Beach to Jones Beach. This will result in numerous road closures and cause widespread flooding of low lying property including parking lots, parks, lawns, and homes and businesses with basements near the waterfront. Vehicles parked in vulnerable areas near the waterfront will likely become flooded. Flooding in the most vulnerable areas may not totally recede during the times of low tide. * SHOREFRONT AND BEACH IMPACTS...Breaking waves of 6 to 10 feet along with elevated water levels will result in widespread dune erosion and beach flooding. Localized overwashes are possible where dune structures are compromised, resulting in some flooding of roadways and vulnerable structures behind protective dunes. 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. Rip currents can sweep even the best swimmers away from shore into deeper water.
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. Inexperienced swimmers should remain out of the water due to dangerous surf conditions.
Affected areas
- Southwest Suffolk
- Southern Nassau
Public contact
- Issuer
- NWS Upton NY
- Website
- http://www.weather.gov
Message record
- Received
- Issue to receipt
- ~1m2s
- CAP status
- Actual
- CAP message type
- Update
- Lifecycle
- Updated
- Source
- NWWS-OI
- Feed
- NWWS
- Recovered
- No
CAP routing and identity
- ULID
- 01M3EFY7BAGQ1E7671KZPC12MM
- Identifier
- urn:oid:2.49.0.1.840.0.61f02e743c8435d0dbf5b4a5e23fa6bf9784e86b.002.1
- 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.5892
- 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
Event codes
| Name | Value |
|---|---|
| SAME | CFW |
| NationalWeatherService | CFW |
Parameters
| Name | Value |
|---|---|
| AWIPSidentifier | CFWOKX |
| WMOidentifier | WHUS41 KOKX 260914 |
| NWSheadline | COASTAL FLOOD WARNING REMAINS IN EFFECT UNTIL 6 PM EDT SUNDAY... ...HIGH SURF ADVISORY REMAINS IN EFFECT UNTIL 8 PM EDT SUNDAY... ...HIGH RIP CURRENT RISK REMAINS IN EFFECT THROUGH SUNDAY EVENING |
| BLOCKCHANNEL | EAS |
| BLOCKCHANNEL | NWEM |
| EAS-ORG | WXR |
| VTEC | /O.CON.KOKX.CF.W.0002.000000T0000Z-260927T2200Z/ |
| eventEndingTime | 2026-09-27T18:00:00-04:00 |
| BLOCKCHANNEL | CMAS |
| expiredReferences | w-nws.webmaster@noaa.gov,urn:oid:2.49.0.1.840.0.f5cb8aff25803c716998fe7ad961b885c6f232ce.002.3,2026-09-25T05:27:00-04:00 w-nws.webmaster@noaa.gov,urn:oid:2.49.0.1.840.0.f5cb8aff25803c716998fe7ad961b885c6f232ce.001.3,2026-09-25T05:27:00-04:00 |
Locations
Location data
- Southwest Suffolk
- Southern Nassau
| Name | Value |
|---|---|
| SAME | 036103 |
| SAME | 036059 |
| UGC | NYZ080 |
| UGC | NYZ179 |