Alert archive / California / Hazardous Seas Warnings in 2021
Hazardous Seas Warning 20, NWS Eureka, CA
NWS Eureka, CA issued this hazardous seas warning at Mar 18, 2021, 2:05 PM PDT. It took effect at Mar 19, 2021, 3:00 AM PDT. It was in force for 11 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
- Mar 18, 2021, 2:05 PM PDT (21:05 UTC)
- In effect from
- Mar 19, 2021, 3:00 AM PDT
- Expired
- Mar 19, 2021, 2:17 PM PDT
- In force
- 11 hr
- Issued by
- NWS Eureka, CA
The text
As transmitted.
943 WHUS76 KEKA 182105 MWWEKA URGENT - MARINE WEATHER MESSAGE National Weather Service Eureka CA 205 PM PDT Thu Mar 18 2021 PZZ470-190515- /O.CON.KEKA.SC.Y.0033.000000T0000Z-210319T1000Z/ /O.NEW.KEKA.SE.W.0020.210319T1000Z-210319T2200Z/ Pt St George to Cape Mendocino 10 to 60 nm- 205 PM PDT Thu Mar 18 2021 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 3 AM PDT FRIDAY... ...HAZARDOUS SEAS WARNING IN EFFECT FROM 3 AM TO 3 PM PDT FRIDAY... * WHAT...For the Hazardous Seas Warning, very steep and hazardous seas 15 to 19 feet expected. For the Small Craft Advisory, south winds 20 to 25 kt with gusts up to 30 kt and seas 14 to 17 feet. * WHERE...Pt St George to Cape Mendocino 10 to 60 nm. * WHEN...For the Hazardous Seas Warning, from 3 AM to 3 PM PDT Friday. For the Small Craft Advisory, until 3 AM PDT Friday. * 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. && $$ PZZ450-455-475-190515- /O.EXT.KEKA.SC.Y.0033.000000T0000Z-210320T0400Z/ Pt St George to Cape Mendocino out 10 nm- Cape Mendocino to Pt Arena out 10 nm- Cape Mendocino to Pt Arena 10 to 60 nm- 205 PM PDT Thu Mar 18 2021 ...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 9 PM PDT FRIDAY... * WHAT...South winds 10 to 20 kt with gusts up to 25 kt and seas 13 to 18 feet. * WHERE...Pt St George to Cape Mendocino out 10 nm, Cape Mendocino to Pt Arena out 10 nm and Cape Mendocino to Pt Arena 10 to 60 nm. * WHEN...Until 9 PM PDT Friday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$
4 follow-up statements
331 WHUS76 KEKA 190308 MWWEKA URGENT - MARINE WEATHER MESSAGE National Weather Service Eureka CA 808 PM PDT Thu Mar 18 2021 PZZ470-191115- /O.CON.KEKA.SC.Y.0033.000000T0000Z-210319T1000Z/ /O.CON.KEKA.SE.W.0020.210319T1000Z-210319T2200Z/ Pt St George to Cape Mendocino 10 to 60 nm- 808 PM PDT Thu Mar 18 2021 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 3 AM PDT FRIDAY... ...HAZARDOUS SEAS WARNING REMAINS IN EFFECT FROM 3 AM TO 3 PM PDT FRIDAY... * WHAT...For the Hazardous Seas Warning, very steep and hazardous seas 15 to 19 feet expected. For the Small Craft Advisory, south winds 20 to 25 kt with gusts up to 30 kt and seas 14 feet. * WHERE...Pt St George to Cape Mendocino 10 to 60 nm. * WHEN...For the Hazardous Seas Warning, from 3 AM to 3 PM PDT Friday. For the Small Craft Advisory, until 3 AM PDT Friday. * 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. && $$ PZZ450-455-475-191115- /O.EXT.KEKA.SC.Y.0033.000000T0000Z-210320T1200Z/ Pt St George to Cape Mendocino out 10 nm- Cape Mendocino to Pt Arena out 10 nm- Cape Mendocino to Pt Arena 10 to 60 nm- 808 PM PDT Thu Mar 18 2021 ...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 5 AM PDT SATURDAY... * WHAT...Southwest winds 5 to 15 kt with gusts up to 25 kt and seas 13 to 18 feet. * WHERE...Pt St George to Cape Mendocino out 10 nm, Cape Mendocino to Pt Arena out 10 nm and Cape Mendocino to Pt Arena 10 to 60 nm. * WHEN...Until 5 AM PDT Saturday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$
180 WHUS76 KEKA 190939 MWWEKA URGENT - MARINE WEATHER MESSAGE National Weather Service Eureka CA 239 AM PDT Fri Mar 19 2021 PZZ470-191745- /O.EXP.KEKA.SC.Y.0033.000000T0000Z-210319T1000Z/ /O.CON.KEKA.SE.W.0020.210319T1000Z-210319T2200Z/ Pt St George to Cape Mendocino 10 to 60 nm- 239 AM PDT Fri Mar 19 2021 ...HAZARDOUS SEAS WARNING REMAINS IN EFFECT UNTIL 3 PM PDT THIS AFTERNOON... ...SMALL CRAFT ADVISORY WILL EXPIRE AT 3 AM PDT EARLY THIS MORNING... * WHAT...Very steep and hazardous seas 14 to 19 feet expected. * WHERE...Pt St George to Cape Mendocino 10 to 60 nm. * WHEN...Until 3 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. && $$ PZZ450-455-475-191745- /O.CON.KEKA.SC.Y.0033.000000T0000Z-210320T1200Z/ Pt St George to Cape Mendocino out 10 nm- Cape Mendocino to Pt Arena out 10 nm- Cape Mendocino to Pt Arena 10 to 60 nm- 239 AM PDT Fri Mar 19 2021 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 5 AM PDT SATURDAY... * WHAT...Southwest winds 5 to 15 kt and seas 13 to 18 feet. * WHERE...Pt St George to Cape Mendocino out 10 nm, Cape Mendocino to Pt Arena out 10 nm and Cape Mendocino to Pt Arena 10 to 60 nm. * WHEN...Until 5 AM PDT Saturday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$
324 WHUS76 KEKA 191529 MWWEKA URGENT - MARINE WEATHER MESSAGE National Weather Service Eureka CA 829 AM PDT Fri Mar 19 2021 PZZ470-192200- /O.CON.KEKA.SE.W.0020.000000T0000Z-210319T2200Z/ Pt St George to Cape Mendocino 10 to 60 nm- 829 AM PDT Fri Mar 19 2021 ...HAZARDOUS SEAS WARNING REMAINS IN EFFECT UNTIL 3 PM PDT THIS AFTERNOON... * WHAT...Very steep and hazardous seas 16 to 19 feet. * WHERE...Pt St George to Cape Mendocino 10 to 60 nm. * WHEN...Until 3 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. && $$ PZZ450-455-475-192330- /O.CON.KEKA.SC.Y.0033.000000T0000Z-210320T1200Z/ Pt St George to Cape Mendocino out 10 nm- Cape Mendocino to Pt Arena out 10 nm- Cape Mendocino to Pt Arena 10 to 60 nm- 829 AM PDT Fri Mar 19 2021 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 5 AM PDT SATURDAY... * WHAT...Seas 10 to 15 feet. * WHERE...Pt St George to Cape Mendocino out 10 nm, Cape Mendocino to Pt Arena out 10 nm and Cape Mendocino to Pt Arena 10 to 60 nm. * WHEN...Until 5 AM PDT Saturday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$
856 WHUS76 KEKA 192117 MWWEKA URGENT - MARINE WEATHER MESSAGE National Weather Service Eureka CA 217 PM PDT Fri Mar 19 2021 PZZ470-200530- /O.CAN.KEKA.SE.W.0020.000000T0000Z-210319T2200Z/ /O.EXB.KEKA.SC.Y.0033.000000T0000Z-210320T1300Z/ Pt St George to Cape Mendocino 10 to 60 nm- 217 PM PDT Fri Mar 19 2021 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 6 AM PDT SATURDAY... ...HAZARDOUS SEAS WARNING IS CANCELLED... * WHAT...Southwest winds 5 to 15 kt and seas 10 to 12 feet. * WHERE...Pt St George to Cape Mendocino 10 to 60 nm. * WHEN...Until 6 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. && $$ PZZ450-455-475-200530- /O.EXT.KEKA.SC.Y.0033.000000T0000Z-210320T1300Z/ Pt St George to Cape Mendocino out 10 nm- Cape Mendocino to Pt Arena out 10 nm- Cape Mendocino to Pt Arena 10 to 60 nm- 217 PM PDT Fri Mar 19 2021 ...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 6 AM PDT SATURDAY... * WHAT...Seas 10 to 13 feet. * WHERE...Pt St George to Cape Mendocino out 10 nm, Cape Mendocino to Pt Arena out 10 nm and Cape Mendocino to Pt Arena 10 to 60 nm. * WHEN...Until 6 AM PDT Saturday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$
The office that day
Everything else NWS Eureka, CA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 18, 9:12 AM PDT | Small Craft Advisory | EKA | 48 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.