Hazardous Seas Warning
NWS Medford OR ยท US
Details
Hazardous Seas Warning Remains In Effect Until 4 PM PST Wednesday... ...Small Craft Advisory In Effect From 4 PM Wednesday To 10 PM PST Thursday
- Event
- Hazardous Seas Warning
- Issued
- Onset
- Message expires
- Expected end
- Category
- Meteorological
- Urgency
- Expected
- Severity
- Moderate
- Certainty
- Likely
- Response
- Avoid
Description
What
South winds 20 to 30 kt with gusts up to 35 kt and steep swell dominated seas 10 to 14 ft at 14 seconds. South winds increase late tonight, 25 to 35 kt. Gale force gusts to 40 kt are possible at times tonight through Wednesday with seas becoming very steep and increasing to 14 to 16 ft at 14 seconds.
Where
All areas.
When
For the Hazardous Seas Warning, until 4 PM PST Wednesday. For the Small Craft Advisory, from 4 PM Wednesday to 10 PM PST Thursday.
Impacts
Gusty winds and/or very steep and hazardous seas could capsize or damage vessels. Bar crossings will become especially treacherous.
Additional details
A strong front will bring gales and the potential for storm force wind gusts Thursday night into Friday followed by a very large westerly ocean swell Friday night into Saturday. Very steep, hazardous waves could reach 25 to 30 feet or higher. Please stay tuned for updates on this high impact weather pattern. * View the hazard area in detail at https://go.usa.gov/x6hks
Instructions
Recreational boaters should remain in port. Commercial vessels should prepare for very steep seas and consider remaining in port until conditions improve.
Affected areas
- Coastal waters from Florence to Cape Blanco OR out 10 nm
- Waters from Florence to Cape Blanco OR from 10 to 60 nm
Public contact
- Issuer
- NWS Medford OR
- Website
- http://www.weather.gov
Message record
- Received
- Issue to receipt
- ~29s
- CAP status
- Actual
- CAP message type
- Update
- Lifecycle
- Updated
- Source
- NWWS-OI
- Feed
- NWWS
- Recovered
- No
CAP routing and identity
- ULID
- 01M73Q1TV4FN7PMHN6KPG7A4QR
- Identifier
- urn:oid:2.49.0.1.840.0.7d9d95c79c49e0770e441fe118d5adc0d931d8bd.001.2
- Sender
- [email protected]
- Scope
- Public
- CAP source
- 211803 v2.3.0
- Handling codes
- IPAWSv1.0
- Issuing office
- NWS Medford OR
- AWIPS ID
- CAPMFR
- NWWS sequence
- nwws_processor.5778
- 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 | SEW |
Parameters
| Name | Value |
|---|---|
| AWIPSidentifier | MWWMFR |
| WMOidentifier | WHUS76 KMFR 102150 |
| NWSheadline | HAZARDOUS SEAS WARNING REMAINS IN EFFECT UNTIL 4 PM PST WEDNESDAY... ...SMALL CRAFT ADVISORY IN EFFECT FROM 4 PM WEDNESDAY TO 10 PM PST THURSDAY |
| BLOCKCHANNEL | EAS |
| BLOCKCHANNEL | NWEM |
| VTEC | /O.CON.KMFR.SE.W.0043.261111T0000Z-261112T0000Z/ |
| eventEndingTime | 2026-11-11T16:00:00-08:00 |
| BLOCKCHANNEL | CMAS |
Locations
Location data
- Coastal waters from Florence to Cape Blanco OR out 10 nm
- Waters from Florence to Cape Blanco OR from 10 to 60 nm
| Name | Value |
|---|---|
| SAME | 057350 |
| SAME | 057370 |
| UGC | PZZ350 |
| UGC | PZZ370 |