Alert archive / California / Hazardous Seas Warnings in 2021
Hazardous Seas Warning 18, NWS Eureka, CA
NWS Eureka, CA issued this hazardous seas warning at Feb 25, 2021, 9:00 PM PST. It took effect at Feb 26, 2021, 12:00 PM PST. It was in force for 15 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
- Feb 25, 2021, 9:00 PM PST (05:00 UTC)
- In effect from
- Feb 26, 2021, 12:00 PM PST
- Expired
- Feb 27, 2021, 2:35 AM PST
- In force
- 15 hr
- Issued by
- NWS Eureka, CA
The text
As transmitted.
505 WHUS76 KEKA 260500 MWWEKA URGENT - MARINE WEATHER MESSAGE National Weather Service Eureka CA 900 PM PST Thu Feb 25 2021 PZZ475-261300- /O.EXT.KEKA.SC.Y.0022.000000T0000Z-210226T2000Z/ /O.NEW.KEKA.SE.W.0018.210226T2000Z-210228T0500Z/ Cape Mendocino to Pt Arena 10 to 60 nm- 900 PM PST Thu Feb 25 2021 ...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL NOON PST FRIDAY... ...HAZARDOUS SEAS WARNING IN EFFECT FROM NOON FRIDAY TO 9 PM PST SATURDAY... * WHAT...For the Hazardous Seas Warning, very steep and hazardous seas 14 to 19 feet expected. For the Small Craft Advisory, north winds 20 to 30 kt with local gusts up to 35 kt and seas 11 to 16 feet. * WHERE...Cape Mendocino to Pt Arena 10 to 60 nm. * WHEN...For the Hazardous Seas Warning, from noon Friday to 9 PM PST Saturday. For the Small Craft Advisory, until noon PST Friday. * IMPACTS...Very steep and hazardous seas could capsize or cause damage to vessels. * ADDITIONAL DETAILS...Seas will be a combination of steep short period waves and a large long period swell building into the waters late tonight and Friday. 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. && $$ PZZ450-261300- /O.EXB.KEKA.SC.Y.0022.210226T1100Z-210228T0800Z/ Pt St George to Cape Mendocino out 10 nm- 900 PM PST Thu Feb 25 2021 ...SMALL CRAFT ADVISORY IN EFFECT FROM 3 AM FRIDAY TO MIDNIGHT PST SATURDAY NIGHT... * WHAT...North winds 10 to 20 kt with gusts up to 30 kt and seas building to 11 to 16 feet expected. * WHERE...Pt St George to Cape Mendocino out 10 nm. * WHEN...From 3 AM Friday to midnight PST Saturday night. * IMPACTS...Conditions will be hazardous to small craft. * ADDITIONAL DETAILS...Seas will be a combination of steep short period waves and a large long period swell building into the waters late tonight and Friday. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ PZZ455-261300- /O.CON.KEKA.SC.Y.0022.000000T0000Z-210228T0800Z/ Cape Mendocino to Pt Arena out 10 nm- 900 PM PST Thu Feb 25 2021 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT PST SATURDAY NIGHT... * WHAT...North winds 20 to 30 kt with local gusts up to 40 kt near Cape Mendocino and seas building to 13 to 18 feet. * WHERE...Cape Mendocino to Pt Arena out 10 nm. * WHEN...Until midnight PST Saturday night. * IMPACTS...Conditions will be hazardous to small craft. * ADDITIONAL DETAILS...Seas will be a combination of steep short period waves and a large long period swell building into the waters late tonight and Friday. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ PZZ470-261300- /O.CON.KEKA.SC.Y.0023.000000T0000Z-210228T0800Z/ Pt St George to Cape Mendocino 10 to 60 nm- 900 PM PST Thu Feb 25 2021 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT PST SATURDAY NIGHT... * WHAT...North winds 15 to 25 kt with gusts up to 30 kt and seas 13 to 18 feet. * WHERE...Pt St George to Cape Mendocino 10 to 60 nm. * WHEN...Until midnight PST Saturday night. * IMPACTS...Conditions will be hazardous to small craft. * ADDITIONAL DETAILS...Seas will be a combination of steep short period waves and a large long period swell building into the waters late tonight and Friday. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$
5 follow-up statements
649 WHUS76 KEKA 261015 MWWEKA URGENT - MARINE WEATHER MESSAGE National Weather Service Eureka CA 215 AM PST Fri Feb 26 2021 PZZ475-261815- /O.CON.KEKA.SC.Y.0022.000000T0000Z-210226T2000Z/ /O.EXT.KEKA.SE.W.0018.210226T2000Z-210227T1100Z/ Cape Mendocino to Pt Arena 10 to 60 nm- 215 AM PST Fri Feb 26 2021 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL NOON PST TODAY... ...HAZARDOUS SEAS WARNING NOW IN EFFECT FROM NOON TODAY TO 3 AM PST SATURDAY... * WHAT...For the Hazardous Seas Warning, very steep and hazardous seas 16 to 18 feet expected. For the Small Craft Advisory, north winds 20 to 25 kt with gusts up to 30 kt and seas 13 to 18 feet. * WHERE...Cape Mendocino to Pt Arena 10 to 60 nm. * WHEN...For the Hazardous Seas Warning, from noon today to 3 AM PST Saturday. For the Small Craft Advisory, until noon PST today. * 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. && $$ PZZ450-261815- /O.EXT.KEKA.SC.Y.0022.210226T1100Z-210228T1100Z/ Pt St George to Cape Mendocino out 10 nm- 215 AM PST Fri Feb 26 2021 ...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 3 AM PST SUNDAY... * WHAT...North winds 10 to 20 kt with gusts up to 30 kt and seas 11 to 16 feet expected. * WHERE...Pt St George to Cape Mendocino out 10 nm. * WHEN...Until 3 AM PST Sunday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ PZZ455-261815- /O.EXT.KEKA.SC.Y.0022.000000T0000Z-210228T1100Z/ Cape Mendocino to Pt Arena out 10 nm- 215 AM PST Fri Feb 26 2021 ...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 3 AM PST SUNDAY... * WHAT...North winds 15 to 25 kt with localized gusts up to 35 kt and seas 12 to 17 feet. * WHERE...Cape Mendocino to Pt Arena out 10 nm. * WHEN...Until 3 AM PST Sunday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ PZZ470-261815- /O.EXT.KEKA.SC.Y.0023.000000T0000Z-210228T1100Z/ Pt St George to Cape Mendocino 10 to 60 nm- 215 AM PST Fri Feb 26 2021 ...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 3 AM PST SUNDAY... * WHAT...North winds 15 to 25 kt with gusts up to 30 kt and seas 13 to 18 feet. * WHERE...Pt St George to Cape Mendocino 10 to 60 nm. * WHEN...Until 3 AM PST Sunday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$
315 WHUS76 KEKA 261626 MWWEKA URGENT - MARINE WEATHER MESSAGE National Weather Service Eureka CA 826 AM PST Fri Feb 26 2021 PZZ475-270030- /O.CON.KEKA.SC.Y.0022.000000T0000Z-210226T2000Z/ /O.CON.KEKA.SE.W.0018.210226T2000Z-210227T1100Z/ Cape Mendocino to Pt Arena 10 to 60 nm- 826 AM PST Fri Feb 26 2021 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL NOON PST TODAY... ...HAZARDOUS SEAS WARNING REMAINS IN EFFECT FROM NOON TODAY TO 3 AM PST SATURDAY... * WHAT...For the Hazardous Seas Warning, very steep and hazardous seas 16 to 18 feet expected. For the Small Craft Advisory, northwest winds 15 to 25 kt with gusts up to 30 kt and seas 13 to 18 feet. * WHERE...Cape Mendocino to Pt Arena 10 to 60 nm. * WHEN...For the Hazardous Seas Warning, from noon today to 3 AM PST Saturday. For the Small Craft Advisory, until noon PST today. * 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. && $$ PZZ450-270030- /O.CON.KEKA.SC.Y.0022.000000T0000Z-210228T1100Z/ Pt St George to Cape Mendocino out 10 nm- 826 AM PST Fri Feb 26 2021 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 3 AM PST SUNDAY... * WHAT...North winds 10 to 20 kt with gusts up to 30 kt and seas 11 to 16 feet. * WHERE...Pt St George to Cape Mendocino out 10 nm. * WHEN...Until 3 AM PST Sunday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ PZZ455-270030- /O.CON.KEKA.SC.Y.0022.000000T0000Z-210228T1100Z/ Cape Mendocino to Pt Arena out 10 nm- 826 AM PST Fri Feb 26 2021 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 3 AM PST SUNDAY... * WHAT...North winds 15 to 25 kt with gusts up to 35 kt and seas 12 to 17 feet. * WHERE...Cape Mendocino to Pt Arena out 10 nm. * WHEN...Until 3 AM PST Sunday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ PZZ470-270030- /O.CON.KEKA.SC.Y.0023.000000T0000Z-210228T1100Z/ Pt St George to Cape Mendocino 10 to 60 nm- 826 AM PST Fri Feb 26 2021 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 3 AM PST SUNDAY... * WHAT...North winds 15 to 25 kt with gusts up to 30 kt and seas 13 to 18 feet. * WHERE...Pt St George to Cape Mendocino 10 to 60 nm. * WHEN...Until 3 AM PST Sunday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$
589 WHUS76 KEKA 262228 MWWEKA URGENT - MARINE WEATHER MESSAGE National Weather Service Eureka CA 228 PM PST Fri Feb 26 2021 PZZ475-270630- /O.CON.KEKA.SE.W.0018.000000T0000Z-210227T1100Z/ Cape Mendocino to Pt Arena 10 to 60 nm- 228 PM PST Fri Feb 26 2021 ...HAZARDOUS SEAS WARNING REMAINS IN EFFECT UNTIL 3 AM PST SATURDAY... * WHAT...Very steep and hazardous seas 16 to 18 feet. * WHERE...Cape Mendocino to Pt Arena 10 to 60 nm. * WHEN...Until 3 AM PST 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. && $$ PZZ450-270630- /O.CON.KEKA.SC.Y.0022.000000T0000Z-210228T1100Z/ Pt St George to Cape Mendocino out 10 nm- 228 PM PST Fri Feb 26 2021 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 3 AM PST SUNDAY... * WHAT...North winds 15 to 25 kt with gusts up to 30 kt and seas 11 to 16 feet. * WHERE...Pt St George to Cape Mendocino out 10 nm. * WHEN...Until 3 AM PST Sunday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ PZZ455-270630- /O.CON.KEKA.SC.Y.0022.000000T0000Z-210228T1100Z/ Cape Mendocino to Pt Arena out 10 nm- 228 PM PST Fri Feb 26 2021 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 3 AM PST SUNDAY... * WHAT...North winds 20 to 30 kt with gusts up to 35 kt and seas 12 to 17 feet. * WHERE...Cape Mendocino to Pt Arena out 10 nm. * WHEN...Until 3 AM PST Sunday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ PZZ470-270630- /O.CON.KEKA.SC.Y.0023.000000T0000Z-210228T1100Z/ Pt St George to Cape Mendocino 10 to 60 nm- 228 PM PST Fri Feb 26 2021 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 3 AM PST SUNDAY... * WHAT...North winds 15 to 25 kt with gusts up to 30 kt and seas 13 to 18 feet. * WHERE...Pt St George to Cape Mendocino 10 to 60 nm. * WHEN...Until 3 AM PST Sunday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$
072 WHUS76 KEKA 270410 MWWEKA URGENT - MARINE WEATHER MESSAGE National Weather Service Eureka CA 810 PM PST Fri Feb 26 2021 PZZ475-271100- /O.CON.KEKA.SE.W.0018.000000T0000Z-210227T1100Z/ Cape Mendocino to Pt Arena 10 to 60 nm- 810 PM PST Fri Feb 26 2021 ...HAZARDOUS SEAS WARNING REMAINS IN EFFECT UNTIL 3 AM PST SATURDAY... * WHAT...Very steep and hazardous seas 16 to 18 feet. * WHERE...Cape Mendocino to Pt Arena 10 to 60 nm. * WHEN...Until 3 AM PST 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. && $$ PZZ450-271215- /O.CON.KEKA.SC.Y.0022.000000T0000Z-210228T1100Z/ Pt St George to Cape Mendocino out 10 nm- 810 PM PST Fri Feb 26 2021 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 3 AM PST SUNDAY... * WHAT...North winds 10 to 20 kt with gusts up to 30 kt and seas 11 to 15 feet. * WHERE...Pt St George to Cape Mendocino out 10 nm. * WHEN...Until 3 AM PST Sunday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ PZZ455-271215- /O.CON.KEKA.SC.Y.0022.000000T0000Z-210228T1100Z/ Cape Mendocino to Pt Arena out 10 nm- 810 PM PST Fri Feb 26 2021 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 3 AM PST SUNDAY... * WHAT...North winds 15 to 25 kt with gusts up to 35 kt and seas 11 to 16 feet. * WHERE...Cape Mendocino to Pt Arena out 10 nm. * WHEN...Until 3 AM PST Sunday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ PZZ470-271215- /O.CON.KEKA.SC.Y.0023.000000T0000Z-210228T1100Z/ Pt St George to Cape Mendocino 10 to 60 nm- 810 PM PST Fri Feb 26 2021 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 3 AM PST SUNDAY... * WHAT...North winds 15 to 25 kt with gusts up to 30 kt and seas 13 to 17 feet. * WHERE...Pt St George to Cape Mendocino 10 to 60 nm. * WHEN...Until 3 AM PST Sunday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$
168 WHUS76 KEKA 271035 MWWEKA URGENT - MARINE WEATHER MESSAGE National Weather Service Eureka CA 235 AM PST Sat Feb 27 2021 PZZ475-271845- /O.CAN.KEKA.SE.W.0018.000000T0000Z-210227T1100Z/ /O.NEW.KEKA.SC.Y.0024.210227T1035Z-210228T2300Z/ Cape Mendocino to Pt Arena 10 to 60 nm- 235 AM PST Sat Feb 27 2021 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 3 PM PST SUNDAY... * WHAT...North winds 15 to 25 kt with a few gusts up to 35 kt and seas 12 to 16 feet. * WHERE...Cape Mendocino to Pt Arena 10 to 60 nm, strongest winds directly downwind of Cape Mendocino. * WHEN...Until 3 PM PST Sunday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ PZZ450-271845- /O.EXT.KEKA.SC.Y.0022.000000T0000Z-210228T1700Z/ Pt St George to Cape Mendocino out 10 nm- 235 AM PST Sat Feb 27 2021 ...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 9 AM PST SUNDAY... * WHAT...North winds 10 to 20 kt with gusts up to 25 kt and seas 10 to 14 feet. * WHERE...Pt St George to Cape Mendocino out 10 nm. * WHEN...Until 9 AM PST Sunday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ PZZ455-271845- /O.EXT.KEKA.SC.Y.0022.000000T0000Z-210228T2300Z/ Cape Mendocino to Pt Arena out 10 nm- 235 AM PST Sat Feb 27 2021 ...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 3 PM PST SUNDAY... * WHAT...North winds 15 to 25 kt with localized gusts up to 35 kt and seas 10 to 15 feet. * WHERE...Cape Mendocino to Pt Arena out 10 nm, strongest winds near Cape Mendocino. * WHEN...Until 3 PM PST Sunday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ PZZ470-271845- /O.EXT.KEKA.SC.Y.0023.000000T0000Z-210228T1700Z/ Pt St George to Cape Mendocino 10 to 60 nm- 235 AM PST Sat Feb 27 2021 ...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 9 AM PST SUNDAY... * WHAT...North winds 15 to 25 kt with gusts up to 30 kt and seas 12 to 17 feet. * WHERE...Pt St George to Cape Mendocino 10 to 60 nm. * WHEN...Until 9 AM PST Sunday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$
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.