Coastal Flood Warning
NWS Upton NY ยท US
Details
High Surf Advisory Now In Effect Until 8 PM EDT Sunday... ...High Rip Current Risk Now In Effect Through Sunday Evening... ...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
For the High Surf Advisory, large breaking waves of 6 to 10 feet in the surf zone. For the High Rip Current Risk, dangerous rip currents. For the Coastal Flood Warning, 1 1/2 to 2 1/2 ft, locally 3 ft, of inundation above ground level expected in vulnerable areas near the waterfront and shoreline. The highest water levels are likely with the Saturday morning and possibly Sunday morning high tides.
Where
Southeast Suffolk County.
When
For the High Surf Advisory, until 8 PM EDT Sunday. For the High Rip Current Risk, through Sunday evening. For the Coastal Flood Warning, During the times of high tide until 6 PM EDT Sunday. * COASTAL FLOOD IMPACTS...Widespread moderate to locally major flooding of vulnerable areas near the waterfront and shoreline. The threat for major flooding is mainly for the north shore of the south fork and north shore of Fire Island due to additive wave action potentially exacerbating flooding. Expect 1 1/2 to 2 1/2 ft, locally 3 feet of inundation above ground level in low lying, vulnerable areas. This will result in numerous road closures and cause widespread flooding of low lying property including parking lots, parks, lawns and homes/businesses with basements near the waterfront. 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/BEACH IMPACTS...Breaking waves of 6 to 10 ft 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.
Additional details
.Another round of moderate to locally major coastal flooding is possible for the Sunday 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. Inexperienced swimmers should remain out of the water due to dangerous surf conditions. If you enter the surf zone, always have a flotation device with you and swim near a lifeguard. If caught in a rip current, relax and float, and do not swim against the current. If able, swim in a direction following the shoreline. If unable to escape, face the shore and yell or wave for help.
Affected areas
- Southeast Suffolk
Public contact
- Issuer
- NWS Upton NY
- Website
- http://www.weather.gov
Message record
- Received
- Issue to receipt
- ~29s
- CAP status
- Actual
- CAP message type
- Alert
- Lifecycle
- New
- Source
- NWWS-OI
- Feed
- NWWS
- Recovered
- No
CAP routing and identity
- ULID
- 01M3D4ZY60DG5H6BJSSHHRA2XA
- Identifier
- urn:oid:2.49.0.1.840.0.5fc2c07df9f96bd93565647920d09b90f7ca1592.004.3
- 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.4334
- 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
Event codes
| Name | Value |
|---|---|
| SAME | CFW |
| NationalWeatherService | CFW |
Parameters
| Name | Value |
|---|---|
| AWIPSidentifier | CFWOKX |
| WMOidentifier | WHUS41 KOKX 252044 |
| NWSheadline | HIGH SURF ADVISORY NOW IN EFFECT UNTIL 8 PM EDT SUNDAY... ...HIGH RIP CURRENT RISK NOW IN EFFECT THROUGH SUNDAY EVENING... ...COASTAL FLOOD WARNING REMAINS IN EFFECT UNTIL 6 PM EDT SUNDAY |
| BLOCKCHANNEL | EAS |
| BLOCKCHANNEL | NWEM |
| EAS-ORG | WXR |
| VTEC | /O.CON.KOKX.CF.W.0002.260925T2200Z-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.008.2,2026-09-25T05:27:00-04:00 |
Locations
Location data
- Southeast Suffolk
| Name | Value |
|---|---|
| SAME | 036103 |
| UGC | NYZ081 |