Coastal Flood Advisory
NWS Eureka CA ยท US
Details
High Surf Advisory Remains In Effect Until 10 PM PST This Evening... ...Coastal Flood Advisory Remains In Effect From 10 AM To Noon PST Monday
- Event
- Coastal Flood Advisory
- Issued
- Onset
- Message expires
- Expected end
- Category
- Meteorological
- Urgency
- Expected
- Severity
- Minor
- Certainty
- Likely
- Response
- Monitor
Description
What
For the High Surf Advisory, large breaking waves 22 to 24 feet. For the Coastal Flood Advisory, High astronomical tides will cause minor flooding in low lying areas around Humboldt Bay. Up to one half foot of saltwater inundation above ground level is possible near shorelines and tidal waterways. Between 8.7 and 8.9 feet MLLW at the North Spit tide gauge is predicted.
Where
Northern Coastal Humboldt County.
When
For the High Surf Advisory, until 10 PM PST this evening. For the Coastal Flood Advisory, from 10 AM to noon PST Monday. High tide is at 10:54 AM at the Humboldt Bay North Spit tide gauge. Saltwater inundation will be possible 1 to 2 hours before and after high tide.
Impacts
Flooding of low lying areas around Humboldt Bay including parks and roads with only isolated closures expected. Flooding will likely impact Jackson Ranch Road in the Arcata Bottoms and several roads in King Salmon. Dangerous surf conditions and localized beach erosion. Beachcombing is highly discouraged!
Instructions
A Coastal Flood Advisory indicates that onshore winds and tides will combine to generate flooding of low areas along the shore. Feet Above Ground is locally defined as feet above the Highest Astronomical Tide or HAT. Large breaking waves along the coast will lead to increased wave run-up on beaches with waves topping and washing over large rocks and jetties. These large waves can be erratic and unpredictable. Use extra caution near the surf zone as these large waves will be capable of sweeping people into the frigid and turbulent ocean water. Mariners traversing the bar are urged to exercise extreme caution or stay in port until the threat subsides. Please contact the U.S. Coast Guard for information regarding harbor and bar closures.
Affected areas
- Northern Coastal Humboldt
Public contact
- Issuer
- NWS Eureka CA
- Website
- http://www.weather.gov
Message record
- Received
- Issue to receipt
- ~45s
- CAP status
- Actual
- CAP message type
- Update
- Lifecycle
- Updated
- Source
- NWWS-OI
- Feed
- NWWS
- Recovered
- No
CAP routing and identity
- ULID
- 01M6Z8MV0C69J571TT901KFJFE
- Identifier
- urn:oid:2.49.0.1.840.0.bac32c24adaf6c72803cdb67e0e07e66f5c4d6b2.001.2
- Sender
- [email protected]
- Scope
- Public
- CAP source
- 211803 v2.3.0
- Handling codes
- IPAWSv1.0
- Issuing office
- NWS Eureka CA
- AWIPS ID
- CAPEKA
- NWWS sequence
- nwws_processor.6048
- WMO heading
- XOUS56
- WMO data type
- CAP alert message XML (XO)
- WMO geography
- United States (US)
- WMO bulletin number
- 56
References
- Sender
- [email protected]
- Sent
Event codes
| Name | Value |
|---|---|
| SAME | NWS |
| NationalWeatherService | CFY |
Parameters
| Name | Value |
|---|---|
| AWIPSidentifier | CFWEKA |
| WMOidentifier | WHUS46 KEKA 090421 |
| NWSheadline | HIGH SURF ADVISORY REMAINS IN EFFECT UNTIL 10 PM PST THIS EVENING... ...COASTAL FLOOD ADVISORY REMAINS IN EFFECT FROM 10 AM TO NOON PST MONDAY |
| BLOCKCHANNEL | EAS |
| BLOCKCHANNEL | NWEM |
| VTEC | /O.CON.KEKA.CF.Y.0026.261109T1800Z-261109T2000Z/ |
| eventEndingTime | 2026-11-09T12:00:00-08:00 |
| BLOCKCHANNEL | CMAS |
Locations
Location data
- Northern Coastal Humboldt
| Name | Value |
|---|---|
| SAME | 006023 |
| UGC | CAZ103 |