Alert archive / California / Hazardous Seas Warnings in 2026
Hazardous Seas Warning 13, NWS Eureka, CA
NWS Eureka, CA issued this hazardous seas warning at Apr 29, 2026, 1:48 PM PDT. It was in force for 67 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
- Apr 29, 2026, 1:48 PM PDT (20:48 UTC)
- Expired
- May 2, 2026, 9:00 AM PDT
- In force
- 67 hr
- Issued by
- NWS Eureka, CA
The text
As transmitted.
850 WHUS76 KEKA 292048 MWWEKA URGENT - MARINE WEATHER MESSAGE National Weather Service Eureka CA 148 PM PDT Wed Apr 29 2026 PZZ470-300500- /O.UPG.KEKA.SC.Y.0045.000000T0000Z-260430T2200Z/ /O.NEW.KEKA.SE.W.0013.260429T2048Z-260502T1600Z/ /O.UPG.KEKA.GL.A.0013.260430T2200Z-260502T0900Z/ Waters from Pt. St. George to Cape Mendocino CA from 10 to 60 nm- 148 PM PDT Wed Apr 29 2026 ...HAZARDOUS SEAS WARNING IN EFFECT UNTIL 9 AM PDT SATURDAY... * WHAT...Very steep and hazardous seas 8 to 12 feet. North winds 15 to 25 kt with gusts to 35 kt. * WHERE...Waters from Pt. St. George to Cape Mendocino CA from 10 to 60 nm. * WHEN...Until 9 AM PDT Saturday. * 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. && $$ PZZ475-300500- /O.UPG.KEKA.SC.Y.0045.000000T0000Z-260430T0600Z/ /O.NEW.KEKA.SE.W.0013.260429T2048Z-260502T1600Z/ /O.UPG.KEKA.GL.A.0013.260430T0600Z-260502T0900Z/ Waters from Cape Mendocino to Pt. Arena CA from 10 to 60 nm- 148 PM PDT Wed Apr 29 2026 ...HAZARDOUS SEAS WARNING IN EFFECT UNTIL 9 AM PDT SATURDAY... * WHAT...Very steep and hazardous seas 9 to 13 feet. North winds 15 to 25 kt with gusts to 35 kt. * WHERE...Waters from Cape Mendocino to Pt. Arena CA from 10 to 60 nm. * WHEN...Until 9 AM PDT Saturday. * IMPACTS...Very steep and hazardous seas could capsize or cause damage to vessels. PRECAUTIONARY/PREPAREDNESS ACTIONS... Recreational boaters should remain in port. Commercial vessels should prepare for rough seas and consider remaining in port until hazardous seas subside. && $$ PZZ450-300500- /O.EXT.KEKA.SC.Y.0045.000000T0000Z-260502T1600Z/ Coastal waters from Pt. St. George to Cape Mendocino CA out 10 nm- 148 PM PDT Wed Apr 29 2026 ...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 9 AM PDT SATURDAY... * WHAT...North winds 10 to 20 kt with gusts up to 30 kt and seas 7 to 10 feet. * WHERE...Coastal waters from Pt. St. George to Cape Mendocino CA out 10 nm. * WHEN...Until 9 AM PDT Saturday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ PZZ455-300500- /O.EXT.KEKA.SC.Y.0045.000000T0000Z-260502T1600Z/ Coastal waters from Cape Mendocino to Pt. Arena CA out 10 nm- 148 PM PDT Wed Apr 29 2026 ...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 9 AM PDT SATURDAY... * WHAT...Northwest winds 15 to 25 kt with gusts up to 40 kt and seas 7 to 10 feet. * WHERE...Coastal waters from Cape Mendocino to Pt. Arena CA out 10 nm. * WHEN...Until 9 AM PDT Saturday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$
10 follow-up statements
455 WHUS76 KEKA 300356 MWWEKA URGENT - MARINE WEATHER MESSAGE National Weather Service Eureka CA 856 PM PDT Wed Apr 29 2026 PZZ470-301200- /O.CON.KEKA.SE.W.0013.000000T0000Z-260502T1600Z/ Waters from Pt. St. George to Cape Mendocino CA from 10 to 60 nm- 856 PM PDT Wed Apr 29 2026 ...HAZARDOUS SEAS WARNING REMAINS IN EFFECT UNTIL 9 AM PDT SATURDAY... * WHAT...Very steep and hazardous seas 8 to 11 feet and north winds 15 to 25 kt with gusts up to 35 kt. * WHERE...Waters from Pt. St. George to Cape Mendocino CA from 10 to 60 nm. * WHEN...Until 9 AM PDT Saturday. * 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. && $$ PZZ475-301200- /O.CON.KEKA.SE.W.0013.000000T0000Z-260502T1600Z/ Waters from Cape Mendocino to Pt. Arena CA from 10 to 60 nm- 856 PM PDT Wed Apr 29 2026 ...HAZARDOUS SEAS WARNING REMAINS IN EFFECT UNTIL 9 AM PDT SATURDAY... * WHAT...Very steep and hazardous seas 9 to 12 feet and northwest winds 20 to 30 kt with gusts up to 35 kt. * WHERE...Waters from Cape Mendocino to Pt. Arena CA from 10 to 60 nm. * WHEN...Until 9 AM PDT Saturday. * IMPACTS...Very steep and hazardous seas could capsize or cause damage to vessels. PRECAUTIONARY/PREPAREDNESS ACTIONS... Recreational boaters should remain in port. Commercial vessels should prepare for rough seas and consider remaining in port until hazardous seas subside. && $$ PZZ450-301200- /O.CON.KEKA.SC.Y.0045.000000T0000Z-260502T1600Z/ Coastal waters from Pt. St. George to Cape Mendocino CA out 10 nm- 856 PM PDT Wed Apr 29 2026 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 9 AM PDT SATURDAY... * WHAT...North winds 10 to 20 kt with gusts up to 30 kt and seas 7 to 10 feet. * WHERE...Coastal waters from Pt. St. George to Cape Mendocino CA out 10 nm. * WHEN...Until 9 AM PDT Saturday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ PZZ455-301200- /O.CON.KEKA.SC.Y.0045.000000T0000Z-260502T1600Z/ Coastal waters from Cape Mendocino to Pt. Arena CA out 10 nm- 856 PM PDT Wed Apr 29 2026 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 9 AM PDT SATURDAY... * WHAT...Northwest winds 15 to 25 kt with gusts up to 40 kt and seas 7 to 10 feet. * WHERE...Coastal waters from Cape Mendocino to Pt. Arena CA out 10 nm. * WHEN...Until 9 AM PDT Saturday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$
265 WHUS76 KEKA 300937 MWWEKA URGENT - MARINE WEATHER MESSAGE National Weather Service Eureka CA 237 AM PDT Thu Apr 30 2026 PZZ470-301745- /O.CON.KEKA.SE.W.0013.000000T0000Z-260502T1600Z/ Waters from Pt. St. George to Cape Mendocino CA from 10 to 60 nm- 237 AM PDT Thu Apr 30 2026 ...HAZARDOUS SEAS WARNING REMAINS IN EFFECT UNTIL 9 AM PDT SATURDAY... * WHAT...Very steep and hazardous seas 9 to 13 feet and north winds 15 to 25 kt with gusts up to 35 kt. * WHERE...Waters from Pt. St. George to Cape Mendocino CA from 10 to 60 nm. * WHEN...Until 9 AM PDT Saturday. * 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. && $$ PZZ475-301745- /O.CON.KEKA.SE.W.0013.000000T0000Z-260502T1600Z/ Waters from Cape Mendocino to Pt. Arena CA from 10 to 60 nm- 237 AM PDT Thu Apr 30 2026 ...HAZARDOUS SEAS WARNING REMAINS IN EFFECT UNTIL 9 AM PDT SATURDAY... * WHAT...Very steep and hazardous seas 10 to 15 feet and northwest winds 20 to 30 kt with gusts up to 35 kt. * WHERE...Waters from Cape Mendocino to Pt. Arena CA from 10 to 60 nm. * WHEN...Until 9 AM PDT Saturday. * IMPACTS...Very steep and hazardous seas could capsize or cause damage to vessels. PRECAUTIONARY/PREPAREDNESS ACTIONS... Recreational boaters should remain in port. Commercial vessels should prepare for rough seas and consider remaining in port until hazardous seas subside. && $$ PZZ450-301745- /O.CON.KEKA.SC.Y.0045.000000T0000Z-260502T1600Z/ Coastal waters from Pt. St. George to Cape Mendocino CA out 10 nm- 237 AM PDT Thu Apr 30 2026 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 9 AM PDT SATURDAY... * WHAT...North winds 10 to 20 kt with gusts up to 30 kt and seas 6 to 11 feet. * WHERE...Coastal waters from Pt. St. George to Cape Mendocino CA out 10 nm. * WHEN...Until 9 AM PDT Saturday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ PZZ455-301745- /O.CON.KEKA.SC.Y.0045.000000T0000Z-260502T1600Z/ Coastal waters from Cape Mendocino to Pt. Arena CA out 10 nm- 237 AM PDT Thu Apr 30 2026 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 9 AM PDT SATURDAY... * WHAT...Northwest winds 15 to 25 kt with gusts up to 40 kt and seas 8 to 13 feet. * WHERE...Coastal waters from Cape Mendocino to Pt. Arena CA out 10 nm. * WHEN...Until 9 AM PDT Saturday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$
852 WHUS76 KEKA 301535 MWWEKA URGENT - MARINE WEATHER MESSAGE National Weather Service Eureka CA 835 AM PDT Thu Apr 30 2026 PZZ470-302345- /O.CON.KEKA.SE.W.0013.000000T0000Z-260502T1600Z/ Waters from Pt. St. George to Cape Mendocino CA from 10 to 60 nm- 835 AM PDT Thu Apr 30 2026 ...HAZARDOUS SEAS WARNING REMAINS IN EFFECT UNTIL 9 AM PDT SATURDAY... * WHAT...Very steep and hazardous seas 9 to 12 feet and north winds 15 to 25 kt with gusts up to 35 kt. * WHERE...Waters from Pt. St. George to Cape Mendocino CA from 10 to 60 nm. * WHEN...Until 9 AM PDT Saturday. * 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. && $$ PZZ475-302345- /O.CON.KEKA.SE.W.0013.000000T0000Z-260502T1600Z/ Waters from Cape Mendocino to Pt. Arena CA from 10 to 60 nm- 835 AM PDT Thu Apr 30 2026 ...HAZARDOUS SEAS WARNING REMAINS IN EFFECT UNTIL 9 AM PDT SATURDAY... * WHAT...Very steep and hazardous seas 10 to 14 feet and northwest winds 20 to 30 kt with gusts up to 40 kt. * WHERE...Waters from Cape Mendocino to Pt. Arena CA from 10 to 60 nm. * WHEN...Until 9 AM PDT Saturday. * IMPACTS...Very steep and hazardous seas could capsize or cause damage to vessels. PRECAUTIONARY/PREPAREDNESS ACTIONS... Recreational boaters should remain in port. Commercial vessels should prepare for rough seas and consider remaining in port until hazardous seas subside. && $$ PZZ450-302345- /O.CON.KEKA.SC.Y.0045.000000T0000Z-260502T1600Z/ Coastal waters from Pt. St. George to Cape Mendocino CA out 10 nm- 835 AM PDT Thu Apr 30 2026 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 9 AM PDT SATURDAY... * WHAT...North winds 10 to 20 kt with gusts up to 30 kt and seas 7 to 10 feet. * WHERE...Coastal waters from Pt. St. George to Cape Mendocino CA out 10 nm. * WHEN...Until 9 AM PDT Saturday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ PZZ455-302345- /O.CON.KEKA.SC.Y.0045.000000T0000Z-260502T1600Z/ Coastal waters from Cape Mendocino to Pt. Arena CA out 10 nm- 835 AM PDT Thu Apr 30 2026 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 9 AM PDT SATURDAY... * WHAT...Northwest winds 15 to 25 kt with gusts up to 35 kt and seas 7 to 12 feet. * WHERE...Coastal waters from Cape Mendocino to Pt. Arena CA out 10 nm. * WHEN...Until 9 AM PDT Saturday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$
627 WHUS76 KEKA 010413 MWWEKA URGENT - MARINE WEATHER MESSAGE National Weather Service Eureka CA 913 PM PDT Thu Apr 30 2026 PZZ470-011215- /O.CON.KEKA.SE.W.0013.000000T0000Z-260502T1600Z/ Waters from Pt. St. George to Cape Mendocino CA from 10 to 60 nm- 913 PM PDT Thu Apr 30 2026 ...HAZARDOUS SEAS WARNING REMAINS IN EFFECT UNTIL 9 AM PDT SATURDAY... * WHAT...Very steep and hazardous seas 9 to 11 feet and north winds 20 to 25 kt with gusts up to 35 kt. * WHERE...Waters from Pt. St. George to Cape Mendocino CA from 10 to 60 nm. * WHEN...Until 9 AM PDT Saturday. * 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. && $$ PZZ475-011215- /O.CON.KEKA.SE.W.0013.000000T0000Z-260502T1600Z/ Waters from Cape Mendocino to Pt. Arena CA from 10 to 60 nm- 913 PM PDT Thu Apr 30 2026 ...HAZARDOUS SEAS WARNING REMAINS IN EFFECT UNTIL 9 AM PDT SATURDAY... * WHAT...Very steep and hazardous seas 10 to 11 feet and northwest winds 20 to 25 kt with gusts up to 35 kt. * WHERE...Waters from Cape Mendocino to Pt. Arena CA from 10 to 60 nm. * WHEN...Until 9 AM PDT Saturday. * IMPACTS...Very steep and hazardous seas could capsize or cause damage to vessels. PRECAUTIONARY/PREPAREDNESS ACTIONS... Recreational boaters should remain in port. Commercial vessels should prepare for rough seas and consider remaining in port until hazardous seas subside. && $$ PZZ450-011215- /O.CON.KEKA.SC.Y.0045.000000T0000Z-260502T1600Z/ Coastal waters from Pt. St. George to Cape Mendocino CA out 10 nm- 913 PM PDT Thu Apr 30 2026 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 9 AM PDT SATURDAY... * WHAT...North winds 10 to 20 kt with gusts up to 25 kt and seas 7 to 10 feet. * WHERE...Coastal waters from Pt. St. George to Cape Mendocino CA out 10 nm. * WHEN...Until 9 AM PDT Saturday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ PZZ455-011215- /O.CON.KEKA.SC.Y.0045.000000T0000Z-260502T1600Z/ Coastal waters from Cape Mendocino to Pt. Arena CA out 10 nm- 913 PM PDT Thu Apr 30 2026 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 9 AM PDT SATURDAY... * WHAT...Northwest winds 15 to 25 kt with gusts up to 35 kt and seas 7 to 11 feet. * WHERE...Coastal waters from Cape Mendocino to Pt. Arena CA out 10 nm. * WHEN...Until 9 AM PDT Saturday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$
403 WHUS76 KEKA 010908 MWWEKA URGENT - MARINE WEATHER MESSAGE National Weather Service Eureka CA 208 AM PDT Fri May 1 2026 PZZ470-011715- /O.CON.KEKA.SE.W.0013.000000T0000Z-260502T1600Z/ Waters from Pt. St. George to Cape Mendocino CA from 10 to 60 nm- 208 AM PDT Fri May 1 2026 ...HAZARDOUS SEAS WARNING REMAINS IN EFFECT UNTIL 9 AM PDT SATURDAY... * WHAT...Very steep and hazardous seas 7 to 10 feet and north winds 20 to 25 kt with gusts up to 35 kt. * WHERE...Waters from Pt. St. George to Cape Mendocino CA from 10 to 60 nm. * WHEN...Until 9 AM PDT Saturday. * 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. && $$ PZZ475-011715- /O.CON.KEKA.SE.W.0013.000000T0000Z-260502T1600Z/ Waters from Cape Mendocino to Pt. Arena CA from 10 to 60 nm- 208 AM PDT Fri May 1 2026 ...HAZARDOUS SEAS WARNING REMAINS IN EFFECT UNTIL 9 AM PDT SATURDAY... * WHAT...Very steep and hazardous seas 9 to 12 feet and northwest winds 20 to 25 kt with gusts up to 35 kt. * WHERE...Waters from Cape Mendocino to Pt. Arena CA from 10 to 60 nm. * WHEN...Until 9 AM PDT Saturday. * IMPACTS...Very steep and hazardous seas could capsize or cause damage to vessels. PRECAUTIONARY/PREPAREDNESS ACTIONS... Recreational boaters should remain in port. Commercial vessels should prepare for rough seas and consider remaining in port until hazardous seas subside. && $$ PZZ450-011715- /O.CON.KEKA.SC.Y.0045.000000T0000Z-260502T1600Z/ Coastal waters from Pt. St. George to Cape Mendocino CA out 10 nm- 208 AM PDT Fri May 1 2026 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 9 AM PDT SATURDAY... * WHAT...North winds 10 to 20 kt with gusts up to 25 kt and seas 6 to 9 feet. * WHERE...Coastal waters from Pt. St. George to Cape Mendocino CA out 10 nm. * WHEN...Until 9 AM PDT Saturday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ PZZ455-011715- /O.CON.KEKA.SC.Y.0045.000000T0000Z-260502T1600Z/ Coastal waters from Cape Mendocino to Pt. Arena CA out 10 nm- 208 AM PDT Fri May 1 2026 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 9 AM PDT SATURDAY... * WHAT...Northwest winds 15 to 25 kt with gusts up to 35 kt and seas 7 to 10 feet. * WHERE...Coastal waters from Cape Mendocino to Pt. Arena CA out 10 nm. * WHEN...Until 9 AM PDT Saturday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$
666 WHUS76 KEKA 011555 MWWEKA URGENT - MARINE WEATHER MESSAGE National Weather Service Eureka CA 855 AM PDT Fri May 1 2026 PZZ470-020000- /O.CON.KEKA.SE.W.0013.000000T0000Z-260502T1600Z/ Waters from Pt. St. George to Cape Mendocino CA from 10 to 60 nm- 855 AM PDT Fri May 1 2026 ...HAZARDOUS SEAS WARNING REMAINS IN EFFECT UNTIL 9 AM PDT SATURDAY... * WHAT...Very steep and hazardous seas 8 to 10 feet and north winds 20 to 30 kt with gusts up to 35 kt. * WHERE...Waters from Pt. St. George to Cape Mendocino CA from 10 to 60 nm. * WHEN...Until 9 AM PDT Saturday. * 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. && $$ PZZ475-020000- /O.CON.KEKA.SE.W.0013.000000T0000Z-260502T1600Z/ Waters from Cape Mendocino to Pt. Arena CA from 10 to 60 nm- 855 AM PDT Fri May 1 2026 ...HAZARDOUS SEAS WARNING REMAINS IN EFFECT UNTIL 9 AM PDT SATURDAY... * WHAT...Very steep and hazardous seas 9 to 12 feet and north winds 20 to 25 kt with gusts up to 35 kt. * WHERE...Waters from Cape Mendocino to Pt. Arena CA from 10 to 60 nm. * WHEN...Until 9 AM PDT Saturday. * IMPACTS...Very steep and hazardous seas could capsize or cause damage to vessels. PRECAUTIONARY/PREPAREDNESS ACTIONS... Recreational boaters should remain in port. Commercial vessels should prepare for rough seas and consider remaining in port until hazardous seas subside. && $$ PZZ450-020000- /O.CON.KEKA.SC.Y.0045.000000T0000Z-260502T1600Z/ Coastal waters from Pt. St. George to Cape Mendocino CA out 10 nm- 855 AM PDT Fri May 1 2026 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 9 AM PDT SATURDAY... * WHAT...North winds 10 to 20 kt with gusts up to 25 kt and seas 6 to 9 feet. * WHERE...Coastal waters from Pt. St. George to Cape Mendocino CA out 10 nm. * WHEN...Until 9 AM PDT Saturday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ PZZ455-020000- /O.CON.KEKA.SC.Y.0045.000000T0000Z-260502T1600Z/ Coastal waters from Cape Mendocino to Pt. Arena CA out 10 nm- 855 AM PDT Fri May 1 2026 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 9 AM PDT SATURDAY... * WHAT...Northwest winds 15 to 25 kt with gusts up to 35 kt and seas 7 to 10 feet. * WHERE...Coastal waters from Cape Mendocino to Pt. Arena CA out 10 nm. * WHEN...Until 9 AM PDT Saturday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$
004 WHUS76 KEKA 012259 MWWEKA URGENT - MARINE WEATHER MESSAGE National Weather Service Eureka CA 359 PM PDT Fri May 1 2026 PZZ470-020700- /O.CON.KEKA.SE.W.0013.000000T0000Z-260502T1600Z/ Waters from Pt. St. George to Cape Mendocino CA from 10 to 60 nm- 359 PM PDT Fri May 1 2026 ...HAZARDOUS SEAS WARNING REMAINS IN EFFECT UNTIL 9 AM PDT SATURDAY... * WHAT...Very steep and hazardous seas 9 to 13 feet and north winds 20 to 30 kt with gusts up to 35 kt. * WHERE...Waters from Pt. St. George to Cape Mendocino CA from 10 to 60 nm. * WHEN...Until 9 AM PDT Saturday. * 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. && $$ PZZ475-020700- /O.CON.KEKA.SE.W.0013.000000T0000Z-260502T1600Z/ Waters from Cape Mendocino to Pt. Arena CA from 10 to 60 nm- 359 PM PDT Fri May 1 2026 ...HAZARDOUS SEAS WARNING REMAINS IN EFFECT UNTIL 9 AM PDT SATURDAY... * WHAT...Very steep and hazardous seas 10 to 14 feet and north winds 20 to 25 kt with gusts up to 35 kt. * WHERE...Waters from Cape Mendocino to Pt. Arena CA from 10 to 60 nm. * WHEN...Until 9 AM PDT Saturday. * IMPACTS...Very steep and hazardous seas could capsize or cause damage to vessels. PRECAUTIONARY/PREPAREDNESS ACTIONS... Recreational boaters should remain in port. Commercial vessels should prepare for rough seas and consider remaining in port until hazardous seas subside. && $$ PZZ450-020700- /O.CON.KEKA.SC.Y.0045.000000T0000Z-260502T1600Z/ Coastal waters from Pt. St. George to Cape Mendocino CA out 10 nm- 359 PM PDT Fri May 1 2026 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 9 AM PDT SATURDAY... * WHAT...North winds 10 to 20 kt with gusts up to 25 kt and seas 7 to 10 feet. * WHERE...Coastal waters from Pt. St. George to Cape Mendocino CA out 10 nm. * WHEN...Until 9 AM PDT Saturday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ PZZ455-020700- /O.CON.KEKA.SC.Y.0045.000000T0000Z-260502T1600Z/ Coastal waters from Cape Mendocino to Pt. Arena CA out 10 nm- 359 PM PDT Fri May 1 2026 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 9 AM PDT SATURDAY... * WHAT...Northwest winds 15 to 25 kt with gusts up to 35 kt and seas 8 to 13 feet. * WHERE...Coastal waters from Cape Mendocino to Pt. Arena CA out 10 nm. * WHEN...Until 9 AM PDT Saturday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$
025 WHUS76 KEKA 020349 MWWEKA URGENT - MARINE WEATHER MESSAGE National Weather Service Eureka CA 849 PM PDT Fri May 1 2026 PZZ470-021200- /O.CON.KEKA.SE.W.0013.000000T0000Z-260502T1600Z/ Waters from Pt. St. George to Cape Mendocino CA from 10 to 60 nm- 849 PM PDT Fri May 1 2026 ...HAZARDOUS SEAS WARNING REMAINS IN EFFECT UNTIL 9 AM PDT SATURDAY... * WHAT...Very steep and hazardous seas 10 to 13 feet and north winds 20 to 30 kt with gusts up to 35 kt. * WHERE...Waters from Pt. St. George to Cape Mendocino CA from 10 to 60 nm. * WHEN...Until 9 AM PDT Saturday. * 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. && $$ PZZ475-021200- /O.CON.KEKA.SE.W.0013.000000T0000Z-260502T1600Z/ Waters from Cape Mendocino to Pt. Arena CA from 10 to 60 nm- 849 PM PDT Fri May 1 2026 ...HAZARDOUS SEAS WARNING REMAINS IN EFFECT UNTIL 9 AM PDT SATURDAY... * WHAT...Very steep and hazardous seas 10 to 14 feet and north winds 20 to 25 kt with gusts up to 35 kt. * WHERE...Waters from Cape Mendocino to Pt. Arena CA from 10 to 60 nm. * WHEN...Until 9 AM PDT Saturday. * IMPACTS...Very steep and hazardous seas could capsize or cause damage to vessels. PRECAUTIONARY/PREPAREDNESS ACTIONS... Recreational boaters should remain in port. Commercial vessels should prepare for rough seas and consider remaining in port until hazardous seas subside. && $$ PZZ450-021200- /O.CON.KEKA.SC.Y.0045.000000T0000Z-260502T1600Z/ Coastal waters from Pt. St. George to Cape Mendocino CA out 10 nm- 849 PM PDT Fri May 1 2026 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 9 AM PDT SATURDAY... * WHAT...North winds 10 to 20 kt with gusts up to 25 kt and seas 7 to 10 feet. * WHERE...Coastal waters from Pt. St. George to Cape Mendocino CA out 10 nm. * WHEN...Until 9 AM PDT Saturday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ PZZ455-021200- /O.CON.KEKA.SC.Y.0045.000000T0000Z-260502T1600Z/ Coastal waters from Cape Mendocino to Pt. Arena CA out 10 nm- 849 PM PDT Fri May 1 2026 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 9 AM PDT SATURDAY... * WHAT...Northwest winds 15 to 25 kt with gusts up to 35 kt and seas 8 to 13 feet. * WHERE...Coastal waters from Cape Mendocino to Pt. Arena CA out 10 nm. * WHEN...Until 9 AM PDT Saturday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$
346 WHUS76 KEKA 020958 MWWEKA URGENT - MARINE WEATHER MESSAGE National Weather Service Eureka CA 258 AM PDT Sat May 2 2026 PZZ470-021600- /O.CON.KEKA.SE.W.0013.000000T0000Z-260502T1600Z/ Waters from Pt. St. George to Cape Mendocino CA from 10 to 60 nm- 258 AM PDT Sat May 2 2026 ...HAZARDOUS SEAS WARNING REMAINS IN EFFECT UNTIL 9 AM PDT THIS MORNING... * WHAT...Very steep and hazardous seas 9 to 11 feet and north winds 20 to 30 kt with gusts up to 35 kt. * WHERE...Waters from Pt. St. George to Cape Mendocino CA from 10 to 60 nm. * WHEN...Until 9 AM PDT this morning. * 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. && $$ PZZ475-021600- /O.CON.KEKA.SE.W.0013.000000T0000Z-260502T1600Z/ Waters from Cape Mendocino to Pt. Arena CA from 10 to 60 nm- 258 AM PDT Sat May 2 2026 ...HAZARDOUS SEAS WARNING REMAINS IN EFFECT UNTIL 9 AM PDT THIS MORNING... * WHAT...Very steep and hazardous seas 9 to 11 feet and north winds 20 to 25 kt with gusts up to 30 kt. * WHERE...Waters from Cape Mendocino to Pt. Arena CA from 10 to 60 nm. * WHEN...Until 9 AM PDT this morning. * IMPACTS...Very steep and hazardous seas could capsize or cause damage to vessels. PRECAUTIONARY/PREPAREDNESS ACTIONS... Recreational boaters should remain in port. Commercial vessels should prepare for rough seas and consider remaining in port until hazardous seas subside. && $$ PZZ450-021600- /O.CON.KEKA.SC.Y.0045.000000T0000Z-260502T1600Z/ Coastal waters from Pt. St. George to Cape Mendocino CA out 10 nm- 258 AM PDT Sat May 2 2026 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 9 AM PDT THIS MORNING... * WHAT...North winds 10 to 20 kt with gusts up to 25 kt and seas 6 to 9 feet. * WHERE...Coastal waters from Pt. St. George to Cape Mendocino CA out 10 nm. * WHEN...Until 9 AM PDT this morning. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ PZZ455-021600- /O.CON.KEKA.SC.Y.0045.000000T0000Z-260502T1600Z/ Coastal waters from Cape Mendocino to Pt. Arena CA out 10 nm- 258 AM PDT Sat May 2 2026 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 9 AM PDT THIS MORNING... * WHAT...Northwest winds 15 to 25 kt with gusts up to 30 kt and seas 7 to 10 feet. * WHERE...Coastal waters from Cape Mendocino to Pt. Arena CA out 10 nm. * WHEN...Until 9 AM PDT this morning. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$
637 WHUS76 KEKA 021501 MWWEKA URGENT - MARINE WEATHER MESSAGE National Weather Service Eureka CA 801 AM PDT Sat May 2 2026 PZZ470-022315- /O.CON.KEKA.SE.W.0013.000000T0000Z-260502T1600Z/ /O.EXB.KEKA.SC.Y.0045.260502T1600Z-260503T0400Z/ Waters from Pt. St. George to Cape Mendocino CA from 10 to 60 nm- 801 AM PDT Sat May 2 2026 ...HAZARDOUS SEAS WARNING REMAINS IN EFFECT UNTIL 9 AM PDT THIS MORNING... ...SMALL CRAFT ADVISORY IN EFFECT FROM 9AM THIS MORNING UNTIL 9 PM PDT THIS EVENING... * WHAT...For the Hazardous Seas Warning, very steep and hazardous seas 9 to 11 feet and north winds 20 to 25 kt with gusts up to 35 kt. For the Small Craft Advisory, north winds 15 to 25 kt with gusts up to 30 kt and seas 7 to 10 feet expected. * WHERE...Waters from Pt. St. George to Cape Mendocino CA from 10 to 60 nm. * WHEN...For the Hazardous Seas Warning, until 9 AM PDT this morning. For the Small Craft Advisory, until 9 PM PDT 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. && $$ PZZ475-022300- /O.CON.KEKA.SE.W.0013.000000T0000Z-260502T1600Z/ /O.EXB.KEKA.SC.Y.0045.260502T1600Z-260502T2300Z/ Waters from Cape Mendocino to Pt. Arena CA from 10 to 60 nm- 801 AM PDT Sat May 2 2026 ...HAZARDOUS SEAS WARNING REMAINS IN EFFECT UNTIL 9 AM PDT THIS MORNING... ...SMALL CRAFT ADVISORY IN EFFECT FROM 9 AM THIS MORNING UNTIL 4 PM PDT THIS AFTERNOON... * WHAT...For the Hazardous Seas Warning, very steep and hazardous seas around 9 feet and northwest winds 20 to 25 kt with gusts up to 30 kt. For the Small Craft Advisory, northwest winds 15 to 25 kt with gusts up to 30 kt and seas 8 to 10 feet expected. * WHERE...Waters from Cape Mendocino to Pt. Arena CA from 10 to 60 nm. * WHEN...For the Hazardous Seas Warning, until 9 AM PDT this morning. For the Small Craft Advisory, until 4 PM PDT this afternoon. * IMPACTS...Very steep and hazardous seas could capsize or cause damage to vessels. PRECAUTIONARY/PREPAREDNESS ACTIONS... Recreational boaters should remain in port. Commercial vessels should prepare for rough seas and consider remaining in port until hazardous seas subside. && $$ PZZ450-021615- /O.CON.KEKA.SC.Y.0045.000000T0000Z-260502T1600Z/ Coastal waters from Pt. St. George to Cape Mendocino CA out 10 nm- 801 AM PDT Sat May 2 2026 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 9 AM PDT THIS MORNING... * WHAT...Seas 7 to 9 feet. * WHERE...Coastal waters from Pt. St. George to Cape Mendocino CA out 10 nm. * WHEN...Until 9 AM PDT this morning. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ PZZ455-021615- /O.CON.KEKA.SC.Y.0045.000000T0000Z-260502T1600Z/ Coastal waters from Cape Mendocino to Pt. Arena CA out 10 nm- 801 AM PDT Sat May 2 2026 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 9 AM PDT THIS MORNING... * WHAT...Northwest winds 10 to 20 kt with gusts up to 25 kt and seas 7 to 9 feet. * WHERE...Coastal waters from Cape Mendocino to Pt. Arena CA out 10 nm. * WHEN...Until 9 AM PDT this morning. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$
What forecasters said that day
The local office's own words before this hazardous seas warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Eureka, CA wrote its last area forecast discussion before this hazardous seas warning went out at Apr 29, 1:49 AM PDT, 11 hours 59 minutes earlier.
Area forecast discussion, Apr 29, 1:49 AM PDT, 11 hours 59 minutes before
AREA FORECAST DISCUSSION
National Weather Service Eureka CA
149 AM PDT Wed Apr 29 2026
.SYNOPSIS...The possibility of interior thunderstorms increases
Friday into Sunday as an area of low pressure begins to organize
by the end of the week.
&&
.DISCUSSION...Marine stratus filling in overnight into Wednesday
morning as low level inversion is further enhanced behind high
pressure and subsidence, albeit a weak ridging pattern with gaps not
encouraging vorticity. The gradient will not be particularly steep
across isobars until a more uniformed and defined system begins to
form Saturday, strengthening Sunday. That said, GFS is highlighting
MUCAPE and RH with an embedded shortwave late Friday afternoon into
the early evening for the interior areas of Siskiyou, western
Trinity and in a linear succession down to northeastern Mendocino
and western Lake county. The mean surface CAPE from NBM is
highlighting most of the interior starting Friday which could be
attributed to surface heating and parcel buoyancy but with
increasing humidity there could be implications for thunderstorm
activity. Ensembles also show a rise in PWAT values rising into the
weekend for what could be thunderstorms with the chance of lightning
Friday through Monday at least. NBM begins to include Del Norte
Saturday early evening for 15% and greater chances of thunder which
also coincides with high CAPE values in the 700-800j/kg range.
/EYS
&&
.AVIATION...00Z TAFs...Stratus expanded out from Humboldt Bay
Tuesday evening. Confidence is growing on southerly return flow from
a coastal eddy to advect stratus up to CEC through Wednesday
morning. MVFR to IFR CIGS expected at ACV (53% chance for IFR).
There is a lesser chance (20%) for LIFR in the 13-16Z Wednesday
timeframe at ACV. CIGS at CEC will mainly range in MVFR levels for a
chance (26%) for IFR. UKI is expected to remain VFR with very little
indications for a surge push of stratus up the Russian River Valley.
Chances for this occurrence and resulting MVFR CIGS are 21%.
&&
.MARINE...Northerly winds will continue their strengthening
trend through Friday. Gale to near gale conditions will be possible
in the waters by Thursday. The inner water buoys are recording up to
8 ft short period seas Tuesday night, with propagation from the
outer zones where the stronger northerlies continue. Small Craft
advisories remain in all zones to cover the wind and steep sea
threat to smaller vessels.
A brief period of lower seas is possible Wednesday morning and early
afternoon so the advisories end early Wednesday morning. However,
winds and seas will build further by Wednesday afternoon and
advisories will need to once again be issued for those areas
starting as early as mid afternoon on Wednesday. Persistent winds
over the outer waters will keep seas elevated and winds in small
craft criteria to near gale Wednesday into Wednesday night. As the
pressure gradient further strengthens, gale force gusts will become
likely Thursday afternoon through Friday night in the outer zones.
Gale conditions may linger into Saturday before winds begin
substantially easing late Saturday afternoon.
&&
.EKA WATCHES/WARNINGS/ADVISORIES...
CA...
None.
NORTHWEST CALIFORNIA COASTAL WATERS...
Small Craft Advisory until 5 AM PDT early this morning for
PZZ450.
Small Craft Advisory until 6 AM PDT early this morning for
PZZ455.
Small Craft Advisory until 3 PM PDT Thursday for PZZ470.
Gale Watch from Thursday afternoon through late Friday
night for PZZ470.
Small Craft Advisory until 11 PM PDT this evening for
PZZ475.
Gale Watch from this evening through late Friday night for
PZZ475.
&&
NOTE: The full forecast discussion is now regularly issued between
10 am/pm and 1 pm/am. Additional updates will be issued as needed.
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For forecast zone information
see the forecast zone map online:
https://www.weather.gov/images/eka/zonemap.pngNearby
Hazardous Seas Warnings in California, 2026Every hazardous seas warning in 2026
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text.