Alert archive / California / Hazardous Seas Warnings in 2021
Hazardous Seas Warning 5, NWS Eureka, CA
NWS Eureka, CA issued this hazardous seas warning at Jan 9, 2021, 12:02 PM PST. It took effect at Jan 10, 2021, 3:00 AM PST. It was in force for 18 hr. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Jan 9, 2021, 12:02 PM PST (20:02 UTC)
- In effect from
- Jan 10, 2021, 3:00 AM PST
- Expired
- Jan 10, 2021, 9:00 PM PST
- In force
- 18 hr
- Issued by
- NWS Eureka, CA
The text
As transmitted.
179 WHUS76 KEKA 092002 MWWEKA URGENT - MARINE WEATHER MESSAGE National Weather Service Eureka CA 1202 PM PST Sat Jan 9 2021 PZZ450-455-475-100415- /O.EXP.KEKA.SC.Y.0002.000000T0000Z-210109T2000Z/ /O.NEW.KEKA.SC.Y.0003.210110T0600Z-210110T1100Z/ /O.UPG.KEKA.SE.A.0001.210110T1100Z-210111T0500Z/ /O.NEW.KEKA.SE.W.0005.210110T1100Z-210111T0500Z/ Pt St George to Cape Mendocino out 10 nm- Cape Mendocino to Pt Arena out 10 nm- Cape Mendocino to Pt Arena 10 to 60 nm- 1202 PM PST Sat Jan 9 2021 ...SMALL CRAFT ADVISORY IN EFFECT FROM 10 PM THIS EVENING TO 3 AM PST SUNDAY... ...HAZARDOUS SEAS WARNING IN EFFECT FROM 3 AM TO 9 PM PST SUNDAY... * WHAT...For the Hazardous Seas Warning, very steep and hazardous seas 17 to 22 feet expected. For the Small Craft Advisory, south winds 10 to 15 kt with gusts up to 25 kt and seas 10 to 15 feet expected. * WHERE...Pt St George to Cape Mendocino out 10 nm, Cape Mendocino to Pt Arena out 10 nm and Cape Mendocino to Pt Arena 10 to 60 nm. * WHEN...For the Hazardous Seas Warning, from 3 AM to 9 PM PST Sunday. For the Small Craft Advisory, from 10 PM this evening to 3 AM PST Sunday. * IMPACTS...Very steep and hazardous seas could capsize or cause damage to vessels. PRECAUTIONARY/PREPAREDNESS ACTIONS... Recreational boaters should remain in port. Commercial vessels should prepare for rough seas and consider remaining in port until hazardous seas subside. && $$ PZZ470-100415- /O.EXP.KEKA.SC.Y.0002.000000T0000Z-210109T2000Z/ /O.NEW.KEKA.SC.Y.0003.210110T0100Z-210110T1100Z/ /O.UPG.KEKA.SE.A.0001.210110T1100Z-210111T0500Z/ /O.NEW.KEKA.SE.W.0005.210110T1100Z-210111T0500Z/ Pt St George to Cape Mendocino 10 to 60 nm- 1202 PM PST Sat Jan 9 2021 ...SMALL CRAFT ADVISORY IN EFFECT FROM 5 PM THIS AFTERNOON TO 3 AM PST SUNDAY... ...HAZARDOUS SEAS WARNING IN EFFECT FROM 3 AM TO 9 PM PST SUNDAY... * WHAT...For the Hazardous Seas Warning, very steep and hazardous seas 18 to 23 feet expected. For the Small Craft Advisory, south winds 15 to 25 kt with gusts up to 30 kt and seas building to 12 to 17 feet expected. * WHERE...Pt St George to Cape Mendocino 10 to 60 nm. * WHEN...For the Hazardous Seas Warning, from 3 AM to 9 PM PST Sunday. For the Small Craft Advisory, from 5 PM this afternoon to 3 AM PST Sunday. * IMPACTS...Very steep and hazardous seas could capsize or cause damage to vessels. PRECAUTIONARY/PREPAREDNESS ACTIONS... Recreational boaters should remain in port. Commercial vessels should prepare for rough seas and consider remaining in port until hazardous seas subside. && $$
6 follow-up statements
197 WHUS76 KEKA 092225 MWWEKA URGENT - MARINE WEATHER MESSAGE National Weather Service Eureka CA 225 PM PST Sat Jan 9 2021 PZZ450-455-475-100630- /O.CON.KEKA.SC.Y.0003.210110T0600Z-210110T1100Z/ /O.CON.KEKA.SE.W.0005.210110T1100Z-210111T0500Z/ Pt St George to Cape Mendocino out 10 nm- Cape Mendocino to Pt Arena out 10 nm- Cape Mendocino to Pt Arena 10 to 60 nm- 225 PM PST Sat Jan 9 2021 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 10 PM THIS EVENING TO 3 AM PST SUNDAY... ...HAZARDOUS SEAS WARNING REMAINS IN EFFECT FROM 3 AM TO 9 PM PST SUNDAY... * WHAT...For the Hazardous Seas Warning, very large and hazardous seas 17 to 22 feet expected. For the Small Craft Advisory, south winds 10 to 15 kt with gusts up to 25 kt and seas 10 to 15 feet expected. * WHERE...Pt St George to Cape Mendocino out 10 nm, Cape Mendocino to Pt Arena out 10 nm and Cape Mendocino to Pt Arena 10 to 60 nm. * WHEN...For the Hazardous Seas Warning, from 3 AM to 9 PM PST Sunday. For the Small Craft Advisory, from 10 PM this evening to 3 AM PST Sunday. * IMPACTS...Very steep and hazardous seas could capsize or cause damage to vessels. PRECAUTIONARY/PREPAREDNESS ACTIONS... Recreational boaters should remain in port. Commercial vessels should prepare for rough seas and consider remaining in port until hazardous seas subside. && $$ PZZ470-100630- /O.CON.KEKA.SC.Y.0003.210110T0100Z-210110T1100Z/ /O.CON.KEKA.SE.W.0005.210110T1100Z-210111T0500Z/ Pt St George to Cape Mendocino 10 to 60 nm- 225 PM PST Sat Jan 9 2021 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 5 PM THIS AFTERNOON TO 3 AM PST SUNDAY... ...HAZARDOUS SEAS WARNING REMAINS IN EFFECT FROM 3 AM TO 9 PM PST SUNDAY... * WHAT...For the Hazardous Seas Warning, very large and hazardous seas 18 to 23 feet expected. For the Small Craft Advisory, south winds 15 to 25 kt with gusts up to 30 kt and seas 12 to 17 feet expected. * WHERE...Pt St George to Cape Mendocino 10 to 60 nm. * WHEN...For the Hazardous Seas Warning, from 3 AM to 9 PM PST Sunday. For the Small Craft Advisory, from 5 PM this afternoon to 3 AM PST Sunday. * IMPACTS...Very steep and hazardous seas could capsize or cause damage to vessels. PRECAUTIONARY/PREPAREDNESS ACTIONS... Recreational boaters should remain in port. Commercial vessels should prepare for rough seas and consider remaining in port until hazardous seas subside. && $$
107 WHUS76 KEKA 100438 MWWEKA URGENT - MARINE WEATHER MESSAGE National Weather Service Eureka CA 838 PM PST Sat Jan 9 2021 PZZ450-455-475-101245- /O.CON.KEKA.SC.Y.0003.210110T0600Z-210110T1100Z/ /O.CON.KEKA.SE.W.0005.210110T1100Z-210111T0500Z/ Pt St George to Cape Mendocino out 10 nm- Cape Mendocino to Pt Arena out 10 nm- Cape Mendocino to Pt Arena 10 to 60 nm- 838 PM PST Sat Jan 9 2021 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 3 AM PST SUNDAY... ...HAZARDOUS SEAS WARNING REMAINS IN EFFECT FROM 3 AM TO 9 PM PST SUNDAY... * WHAT...For the Hazardous Seas Warning, very steep and hazardous seas 17 to 22 feet expected. For the Small Craft Advisory, south winds 10 to 15 kt with gusts up to 25 kt and seas 10 to 15 feet expected. * WHERE...Pt St George to Cape Mendocino out 10 nm, Cape Mendocino to Pt Arena out 10 nm and Cape Mendocino to Pt Arena 10 to 60 nm. * WHEN...For the Hazardous Seas Warning, from 3 AM to 9 PM PST Sunday. For the Small Craft Advisory, until 3 AM PST Sunday. * IMPACTS...Very steep and hazardous seas could capsize or cause damage to vessels. PRECAUTIONARY/PREPAREDNESS ACTIONS... Recreational boaters should remain in port. Commercial vessels should prepare for rough seas and consider remaining in port until hazardous seas subside. && $$ PZZ470-101245- /O.CON.KEKA.SC.Y.0003.000000T0000Z-210110T1100Z/ /O.CON.KEKA.SE.W.0005.210110T1100Z-210111T0500Z/ Pt St George to Cape Mendocino 10 to 60 nm- 838 PM PST Sat Jan 9 2021 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 3 AM PST SUNDAY... ...HAZARDOUS SEAS WARNING REMAINS IN EFFECT FROM 3 AM TO 9 PM PST SUNDAY... * WHAT...For the Hazardous Seas Warning, very steep and hazardous seas 18 to 22 feet expected. For the Small Craft Advisory, south winds 15 to 25 kt with gusts up to 30 kt and seas 12 to 17 feet. * WHERE...Pt St George to Cape Mendocino 10 to 60 nm. * WHEN...For the Hazardous Seas Warning, from 3 AM to 9 PM PST Sunday. For the Small Craft Advisory, until 3 AM PST Sunday. * IMPACTS...Very steep and hazardous seas could capsize or cause damage to vessels. PRECAUTIONARY/PREPAREDNESS ACTIONS... Recreational boaters should remain in port. Commercial vessels should prepare for rough seas and consider remaining in port until hazardous seas subside. && $$
883 WHUS76 KEKA 101027 MWWEKA URGENT - MARINE WEATHER MESSAGE National Weather Service Eureka CA 227 AM PST Sun Jan 10 2021 PZZ450-455-470-475-101830- /O.CON.KEKA.SC.Y.0003.000000T0000Z-210110T1100Z/ /O.CON.KEKA.SE.W.0005.210110T1100Z-210111T0500Z/ Pt St George to Cape Mendocino out 10 nm- Cape Mendocino to Pt Arena out 10 nm- Pt St George to Cape Mendocino 10 to 60 nm- Cape Mendocino to Pt Arena 10 to 60 nm- 227 AM PST Sun Jan 10 2021 ...HAZARDOUS SEAS WARNING NOW IN EFFECT UNTIL 9 PM PST THIS EVENING... * WHAT...Very steep and hazardous seas 17 to 22 feet expected. * WHERE...Pt St George to Cape Mendocino out 10 nm, Cape Mendocino to Pt Arena out 10 nm and Cape Mendocino to Pt Arena 10 to 60 nm. * WHEN...Until 9 PM PST Sunday. * IMPACTS...Very steep and hazardous seas could capsize or cause damage to vessels. PRECAUTIONARY/PREPAREDNESS ACTIONS... Recreational boaters should remain in port. Commercial vessels should prepare for rough seas and consider remaining in port until hazardous seas subside. && $$
191 WHUS76 KEKA 101658 MWWEKA URGENT - MARINE WEATHER MESSAGE National Weather Service Eureka CA 858 AM PST Sun Jan 10 2021 PZZ450-455-470-475-110100- /O.CON.KEKA.SE.W.0005.000000T0000Z-210111T0500Z/ Pt St George to Cape Mendocino out 10 nm- Cape Mendocino to Pt Arena out 10 nm- Pt St George to Cape Mendocino 10 to 60 nm- Cape Mendocino to Pt Arena 10 to 60 nm- 858 AM PST Sun Jan 10 2021 ...HAZARDOUS SEAS WARNING REMAINS IN EFFECT UNTIL 9 PM PST THIS EVENING... * WHAT...Very large and hazardous seas 17 to 22 feet. * WHERE...Pt St George to Cape Mendocino out 10 nm, Pt St George to Cape Mendocino 10 to 60 nm, Cape Mendocino to Pt Arena out 10 nm and Cape Mendocino to Pt Arena 10 to 60 nm. * WHEN...Until 9 PM PST this evening. * IMPACTS...Very steep and hazardous seas could capsize or cause damage to vessels. PRECAUTIONARY/PREPAREDNESS ACTIONS... Recreational boaters should remain in port. Commercial vessels should prepare for rough seas and consider remaining in port until hazardous seas subside. && $$
570 WHUS76 KEKA 102204 MWWEKA URGENT - MARINE WEATHER MESSAGE National Weather Service Eureka CA 204 PM PST Sun Jan 10 2021 PZZ470-110615- /O.CON.KEKA.SE.W.0005.000000T0000Z-210111T0500Z/ /O.NEW.KEKA.GL.A.0004.210112T0500Z-210112T2300Z/ Pt St George to Cape Mendocino 10 to 60 nm- 204 PM PST Sun Jan 10 2021 ...HAZARDOUS SEAS WARNING REMAINS IN EFFECT UNTIL 9 PM PST THIS EVENING... ...GALE WATCH IN EFFECT FROM MONDAY EVENING THROUGH TUESDAY AFTERNOON... * WHAT...For the Hazardous Seas Warning, very large and hazardous seas 17 to 20 feet. For the Gale Watch, south winds 25 to 30 kt with gusts up to 45 kt and seas 18 to 23 feet possible. * WHERE...Pt St George to Cape Mendocino 10 to 60 nm. * WHEN...For the Hazardous Seas Warning, until 9 PM PST this evening. For the Gale Watch, from Monday evening through Tuesday afternoon. * IMPACTS...Strong winds can cause hazardous seas which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should consider altering plans to avoid possible hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for severe wind and seas. && $$ PZZ450-455-475-110500- /O.CON.KEKA.SE.W.0005.000000T0000Z-210111T0500Z/ Pt St George to Cape Mendocino out 10 nm- Cape Mendocino to Pt Arena out 10 nm- Cape Mendocino to Pt Arena 10 to 60 nm- 204 PM PST Sun Jan 10 2021 ...HAZARDOUS SEAS WARNING REMAINS IN EFFECT UNTIL 9 PM PST THIS EVENING... * WHAT...Very large and hazardous seas 16 to 21 feet. * WHERE...Pt St George to Cape Mendocino out 10 nm, Cape Mendocino to Pt Arena out 10 nm and Cape Mendocino to Pt Arena 10 to 60 nm. * WHEN...Until 9 PM PST this evening. * IMPACTS...Very steep and hazardous seas could capsize or cause damage to vessels. PRECAUTIONARY/PREPAREDNESS ACTIONS... Recreational boaters should remain in port. Commercial vessels should prepare for rough seas and consider remaining in port until hazardous seas subside. && $$
909 WHUS76 KEKA 110453 MWWEKA URGENT - MARINE WEATHER MESSAGE National Weather Service Eureka CA 853 PM PST Sun Jan 10 2021 PZZ470-111300- /O.EXP.KEKA.SE.W.0005.000000T0000Z-210111T0500Z/ /O.NEW.KEKA.SC.Y.0004.210111T0500Z-210112T0500Z/ /O.CON.KEKA.GL.A.0004.210112T0500Z-210112T2300Z/ Pt St George to Cape Mendocino 10 to 60 nm- 853 PM PST Sun Jan 10 2021 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 9 PM PST MONDAY... ...GALE WATCH REMAINS IN EFFECT FROM MONDAY EVENING THROUGH TUESDAY AFTERNOON... * WHAT...For the Small Craft Advisory, south winds 15 to 25 kt with gusts up to 30 kt and seas 11 to 14 feet expected. For the Gale Watch, south winds 25 to 30 kt with gusts up to 45 kt and seas 18 to 23 feet possible. * WHERE...Pt St George to Cape Mendocino 10 to 60 nm. * WHEN...For the Small Craft Advisory, until 9 PM PST Monday. For the Gale Watch, from Monday evening through Tuesday afternoon. * IMPACTS...Strong winds can cause hazardous seas which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should consider altering plans to avoid possible hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for severe wind and seas. && $$ PZZ450-455-475-111300- /O.EXP.KEKA.SE.W.0005.000000T0000Z-210111T0500Z/ /O.NEW.KEKA.SC.Y.0004.210111T0500Z-210112T0500Z/ Pt St George to Cape Mendocino out 10 nm- Cape Mendocino to Pt Arena out 10 nm- Cape Mendocino to Pt Arena 10 to 60 nm- 853 PM PST Sun Jan 10 2021 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 9 PM PST MONDAY... * WHAT...South winds 10 to 20 kt with gusts up to 25 kt and seas 9 to 14 feet expected. * WHERE...Pt St George to Cape Mendocino out 10 nm, Cape Mendocino to Pt Arena out 10 nm and Cape Mendocino to Pt Arena 10 to 60 nm. * WHEN...Until 9 PM PST Monday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$
The office that day
Everything else NWS Eureka, CA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jan 9, 4:39 AM PST | High Surf Warning | EKA | Del Norte, Humboldt, Mendocino | 37 hr |
| Jan 9, 12:02 PM PST | Small Craft Advisory | EKA | 15 hr | |
| Jan 9, 2:24 PM PST | Coastal Flood Advisory | EKA | Del Norte, Humboldt | 21 hr |
Nearby
Hazardous Seas Warnings in California, 2021Every hazardous seas warning in 2021
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text.