Alert archive / California / Hazardous Seas Watches in 2021
Hazardous Seas Watch 3, NWS Eureka, CA
NWS Eureka, CA issued this hazardous seas watch at Jan 16, 2021, 2:16 AM PST. It took effect at Jan 17, 2021, 4:00 PM PST. It was in force for .
The area
The counties it named.
The facts
- Issued
- Jan 16, 2021, 2:16 AM PST (10:16 UTC)
- In effect from
- Jan 17, 2021, 4:00 PM PST
- Expired
- Jan 17, 2021, 2:09 AM PST
- In force
- Issued by
- NWS Eureka, CA
The text
As transmitted.
643 WHUS76 KEKA 161016 MWWEKA URGENT - MARINE WEATHER MESSAGE National Weather Service Eureka CA 216 AM PST Sat Jan 16 2021 PZZ455-161830- /O.EXT.KEKA.SC.Y.0006.000000T0000Z-210118T0000Z/ /O.NEW.KEKA.SE.A.0003.210118T0000Z-210118T1800Z/ Cape Mendocino to Pt Arena out 10 nm- 216 AM PST Sat Jan 16 2021 ...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 4 PM PST SUNDAY... ...HAZARDOUS SEAS WATCH IN EFFECT FROM SUNDAY AFTERNOON THROUGH MONDAY MORNING... * WHAT...For the Small Craft Advisory, north winds 10 to 20 kt with gusts up to 30 kt and seas 10 to 15 feet. For the Hazardous Seas Watch, very steep and hazardous seas 14 to 19 feet possible. * WHERE...Cape Mendocino to Pt Arena out 10 nm. * WHEN...For the Small Craft Advisory, until 4 PM PST Sunday. For the Hazardous Seas Watch, from Sunday afternoon through Monday morning. * IMPACTS...Very steep and hazardous seas could capsize or cause damage to vessels. PRECAUTIONARY/PREPAREDNESS ACTIONS... Consider altering your plans to avoid possible hazardous sea conditions. && $$ PZZ470-161830- /O.CON.KEKA.SC.Y.0007.000000T0000Z-210117T0600Z/ /O.CON.KEKA.GL.A.0005.210117T1800Z-210119T0000Z/ Pt St George to Cape Mendocino 10 to 60 nm- 216 AM PST Sat Jan 16 2021 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 10 PM PST THIS EVENING... ...GALE WATCH REMAINS IN EFFECT FROM SUNDAY MORNING THROUGH MONDAY AFTERNOON... * WHAT...For the Small Craft Advisory, north winds 5 to 15 kt and seas 10 to 15 feet. For the Gale Watch, north winds 25 to 35 kt with gusts up to 45 kt and seas 17 to 22 feet possible. * WHERE...Pt St George to Cape Mendocino 10 to 60 nm. * WHEN...For the Small Craft Advisory, until 10 PM PST this evening. For the Gale Watch, from Sunday morning through Monday afternoon. * IMPACTS...Strong winds can cause hazardous seas which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should consider altering plans to avoid possible hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for severe wind and seas. && $$ PZZ475-161830- /O.CON.KEKA.SC.Y.0006.000000T0000Z-210117T1800Z/ /O.CON.KEKA.GL.A.0005.210117T1800Z-210119T0000Z/ Cape Mendocino to Pt Arena 10 to 60 nm- 216 AM PST Sat Jan 16 2021 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 10 AM PST SUNDAY... ...GALE WATCH REMAINS IN EFFECT FROM SUNDAY MORNING THROUGH MONDAY AFTERNOON... * WHAT...For the Small Craft Advisory, north winds 15 to 25 kt with gusts up to 35 kt and seas 11 to 16 feet. For the Gale Watch, north winds 25 to 35 kt with gusts up to 40 kt and seas 17 to 22 feet possible. * WHERE...Cape Mendocino to Pt Arena 10 to 60 nm. * WHEN...For the Small Craft Advisory, until 10 AM PST Sunday. For the Gale Watch, from Sunday morning through Monday 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. && $$ PZZ450-161830- /O.CON.KEKA.SC.Y.0006.000000T0000Z-210117T0600Z/ /O.NEW.KEKA.SE.A.0003.210118T0000Z-210118T1800Z/ Pt St George to Cape Mendocino out 10 nm- 216 AM PST Sat Jan 16 2021 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 10 PM PST THIS EVENING... ...HAZARDOUS SEAS WATCH IN EFFECT FROM SUNDAY AFTERNOON THROUGH MONDAY MORNING... * WHAT...For the Small Craft Advisory, seas 9 to 14 feet. For the Hazardous Seas Watch, very steep and hazardous seas 14 to 18 feet possible. * WHERE...Pt St George to Cape Mendocino out 10 nm. * WHEN...For the Small Craft Advisory, until 10 PM PST this evening. For the Hazardous Seas Watch, from Sunday afternoon through Monday morning. * IMPACTS...Very steep and hazardous seas could capsize or cause damage to vessels. PRECAUTIONARY/PREPAREDNESS ACTIONS... Consider altering your plans to avoid possible hazardous sea conditions. && $$
5 follow-up statements
090 WHUS76 KEKA 161635 MWWEKA URGENT - MARINE WEATHER MESSAGE National Weather Service Eureka CA 835 AM PST Sat Jan 16 2021 PZZ470-170045- /O.CON.KEKA.SC.Y.0007.000000T0000Z-210117T0600Z/ /O.CON.KEKA.GL.A.0005.210117T1800Z-210119T0000Z/ Pt St George to Cape Mendocino 10 to 60 nm- 835 AM PST Sat Jan 16 2021 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 10 PM PST THIS EVENING... ...GALE WATCH REMAINS IN EFFECT FROM SUNDAY MORNING THROUGH MONDAY AFTERNOON... * WHAT...For the Small Craft Advisory, north winds 10 to 15 kt and seas 10 to 14 feet. For the Gale Watch, north winds 25 to 35 kt with gusts up to 45 kt and seas 17 to 22 feet possible. * WHERE...Pt St George to Cape Mendocino 10 to 60 nm. * WHEN...For the Small Craft Advisory, until 10 PM PST this evening. For the Gale Watch, from Sunday morning through Monday 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. && $$ PZZ475-170045- /O.CON.KEKA.SC.Y.0006.000000T0000Z-210117T1800Z/ /O.CON.KEKA.GL.A.0005.210117T1800Z-210119T0000Z/ Cape Mendocino to Pt Arena 10 to 60 nm- 835 AM PST Sat Jan 16 2021 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 10 AM PST SUNDAY... ...GALE WATCH REMAINS IN EFFECT FROM SUNDAY MORNING THROUGH MONDAY AFTERNOON... * WHAT...For the Small Craft Advisory, north winds 15 to 25 kt with gusts up to 35 kt and seas 10 to 15 feet. For the Gale Watch, north winds 25 to 35 kt with gusts up to 40 kt and seas 17 to 22 feet possible. * WHERE...Cape Mendocino to Pt Arena 10 to 60 nm. * WHEN...For the Small Craft Advisory, until 10 AM PST Sunday. For the Gale Watch, from Sunday morning through Monday afternoon. * IMPACTS...Strong winds can cause hazardous seas which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should consider altering plans to avoid possible hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for severe wind and seas. && $$ PZZ450-170045- /O.CON.KEKA.SC.Y.0006.000000T0000Z-210117T0600Z/ /O.CON.KEKA.SE.A.0003.210118T0000Z-210118T1800Z/ Pt St George to Cape Mendocino out 10 nm- 835 AM PST Sat Jan 16 2021 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 10 PM PST THIS EVENING... ...HAZARDOUS SEAS WATCH REMAINS IN EFFECT FROM SUNDAY AFTERNOON THROUGH MONDAY MORNING... * WHAT...For the Small Craft Advisory, seas 9 to 12 feet. For the Hazardous Seas Watch, very steep and hazardous seas 14 to 18 feet possible. * WHERE...Pt St George to Cape Mendocino out 10 nm. * WHEN...For the Small Craft Advisory, until 10 PM PST this evening. For the Hazardous Seas Watch, from Sunday afternoon through Monday morning. * IMPACTS...Very steep and hazardous seas could capsize or cause damage to vessels. PRECAUTIONARY/PREPAREDNESS ACTIONS... Consider altering your plans to avoid possible hazardous sea conditions. && $$ PZZ455-170045- /O.CON.KEKA.SC.Y.0006.000000T0000Z-210118T0000Z/ /O.CON.KEKA.SE.A.0003.210118T0000Z-210118T1800Z/ Cape Mendocino to Pt Arena out 10 nm- 835 AM PST Sat Jan 16 2021 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 4 PM PST SUNDAY... ...HAZARDOUS SEAS WATCH REMAINS IN EFFECT FROM SUNDAY AFTERNOON THROUGH MONDAY MORNING... * WHAT...For the Small Craft Advisory, north winds 10 to 20 kt with gusts up to 30 kt and seas 10 to 15 feet. For the Hazardous Seas Watch, very steep and hazardous seas 14 to 19 feet possible. * WHERE...Cape Mendocino to Pt Arena out 10 nm. * WHEN...For the Small Craft Advisory, until 4 PM PST Sunday. For the Hazardous Seas Watch, from Sunday afternoon through Monday morning. * IMPACTS...Very steep and hazardous seas could capsize or cause damage to vessels. PRECAUTIONARY/PREPAREDNESS ACTIONS... Consider altering your plans to avoid possible hazardous sea conditions. && $$
413 WHUS76 KEKA 162213 MWWEKA URGENT - MARINE WEATHER MESSAGE National Weather Service Eureka CA 213 PM PST Sat Jan 16 2021 PZZ470-170615- /O.EXT.KEKA.SC.Y.0007.000000T0000Z-210118T0000Z/ /O.UPG.KEKA.GL.A.0005.210117T1800Z-210119T0000Z/ /O.NEW.KEKA.GL.W.0005.210118T0000Z-210119T0600Z/ Pt St George to Cape Mendocino 10 to 60 nm- 213 PM PST Sat Jan 16 2021 ...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 4 PM PST SUNDAY... ...GALE WARNING IN EFFECT FROM 4 PM SUNDAY TO 10 PM PST MONDAY... * WHAT...For the Gale Warning, north winds 25 to 35 kt with gusts up to 45 kt and seas 18 to 23 feet expected. For the Small Craft Advisory, north winds 20 to 30 kt with gusts up to 35 kt and seas 8 to 13 feet. * WHERE...Pt St George to Cape Mendocino 10 to 60 nm. * WHEN...For the Gale Warning, from 4 PM Sunday to 10 PM PST Monday. For the Small Craft Advisory, until 4 PM PST Sunday. * IMPACTS...Strong winds will cause hazardous seas which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should alter plans to avoid these hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for severe conditions. && $$ PZZ475-170615- /O.EXT.KEKA.SC.Y.0006.000000T0000Z-210118T0000Z/ /O.UPG.KEKA.GL.A.0005.210117T1800Z-210119T0000Z/ /O.NEW.KEKA.GL.W.0005.210118T0000Z-210119T0600Z/ Cape Mendocino to Pt Arena 10 to 60 nm- 213 PM PST Sat Jan 16 2021 ...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 4 PM PST SUNDAY... ...GALE WARNING IN EFFECT FROM 4 PM SUNDAY TO 10 PM PST MONDAY... * WHAT...For the Gale Warning, north winds 25 to 35 kt with gusts up to 45 kt and seas 17 to 22 feet expected. For the Small Craft Advisory, north winds 20 to 25 kt with gusts up to 35 kt and seas 9 to 13 feet. * WHERE...Cape Mendocino to Pt Arena 10 to 60 nm. * WHEN...For the Gale Warning, from 4 PM Sunday to 10 PM PST Monday. For the Small Craft Advisory, until 4 PM PST Sunday. * IMPACTS...Strong winds will cause hazardous seas which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should alter plans to avoid these hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for severe conditions. && $$ PZZ450-170615- /O.CON.KEKA.SC.Y.0006.000000T0000Z-210117T0600Z/ /O.CON.KEKA.SE.A.0003.210118T0000Z-210118T1800Z/ Pt St George to Cape Mendocino out 10 nm- 213 PM PST Sat Jan 16 2021 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 10 PM PST THIS EVENING... ...HAZARDOUS SEAS WATCH REMAINS IN EFFECT FROM SUNDAY AFTERNOON THROUGH MONDAY MORNING... * WHAT...For the Small Craft Advisory, north winds 5 to 15 kt and seas 9 to 13 feet. For the Hazardous Seas Watch, very steep and hazardous seas 14 to 19 feet possible. * WHERE...Pt St George to Cape Mendocino out 10 nm. * WHEN...For the Small Craft Advisory, until 10 PM PST this evening. For the Hazardous Seas Watch, from Sunday afternoon through Monday morning. * IMPACTS...Very steep and hazardous seas could capsize or cause damage to vessels. PRECAUTIONARY/PREPAREDNESS ACTIONS... Consider altering your plans to avoid possible hazardous sea conditions. && $$ PZZ455-170615- /O.CON.KEKA.SC.Y.0006.000000T0000Z-210118T0000Z/ /O.CON.KEKA.SE.A.0003.210118T0000Z-210118T1800Z/ Cape Mendocino to Pt Arena out 10 nm- 213 PM PST Sat Jan 16 2021 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 4 PM PST SUNDAY... ...HAZARDOUS SEAS WATCH REMAINS IN EFFECT FROM SUNDAY AFTERNOON THROUGH MONDAY MORNING... * WHAT...For the Small Craft Advisory, north winds 10 to 20 kt with gusts up to 30 kt and seas 8 to 12 feet. For the Hazardous Seas Watch, very steep and hazardous seas 14 to 19 feet possible. * WHERE...Cape Mendocino to Pt Arena out 10 nm. * WHEN...For the Small Craft Advisory, until 4 PM PST Sunday. For the Hazardous Seas Watch, from Sunday afternoon through Monday morning. * IMPACTS...Very steep and hazardous seas could capsize or cause damage to vessels. PRECAUTIONARY/PREPAREDNESS ACTIONS... Consider altering your plans to avoid possible hazardous sea conditions. && $$
346 WHUS76 KEKA 170440 MWWEKA URGENT - MARINE WEATHER MESSAGE National Weather Service Eureka CA 840 PM PST Sat Jan 16 2021 PZZ470-171245- /O.CON.KEKA.SC.Y.0007.000000T0000Z-210118T0000Z/ /O.CON.KEKA.GL.W.0005.210118T0000Z-210119T0600Z/ Pt St George to Cape Mendocino 10 to 60 nm- 840 PM PST Sat Jan 16 2021 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 4 PM PST SUNDAY... ...GALE WARNING REMAINS IN EFFECT FROM 4 PM SUNDAY TO 10 PM PST MONDAY... * WHAT...For the Gale Warning, north winds 25 to 35 kt with gusts up to 45 kt and seas 16 to 21 feet expected. For the Small Craft Advisory, north winds 20 to 30 kt with gusts up to 35 kt and seas 10 to 15 feet. * WHERE...Pt St George to Cape Mendocino 10 to 60 nm. * WHEN...For the Gale Warning, from 4 PM Sunday to 10 PM PST Monday. For the Small Craft Advisory, until 4 PM PST Sunday. * IMPACTS...Strong winds will cause hazardous seas which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should alter plans to avoid these hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for severe conditions. && $$ PZZ475-171245- /O.CON.KEKA.SC.Y.0006.000000T0000Z-210118T0000Z/ /O.CON.KEKA.GL.W.0005.210118T0000Z-210119T0600Z/ Cape Mendocino to Pt Arena 10 to 60 nm- 840 PM PST Sat Jan 16 2021 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 4 PM PST SUNDAY... ...GALE WARNING REMAINS IN EFFECT FROM 4 PM SUNDAY TO 10 PM PST MONDAY... * WHAT...For the Gale Warning, north winds 25 to 35 kt with gusts up to 45 kt and seas 16 to 21 feet expected. For the Small Craft Advisory, north winds 20 to 25 kt with gusts up to 35 kt and seas 9 to 14 feet. * WHERE...Cape Mendocino to Pt Arena 10 to 60 nm. * WHEN...For the Gale Warning, from 4 PM Sunday to 10 PM PST Monday. For the Small Craft Advisory, until 4 PM PST Sunday. * IMPACTS...Strong winds will cause hazardous seas which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should alter plans to avoid these hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for severe conditions. && $$ PZZ450-171245- /O.CON.KEKA.SC.Y.0006.000000T0000Z-210117T0600Z/ /O.CON.KEKA.SE.A.0003.210118T0000Z-210118T1800Z/ Pt St George to Cape Mendocino out 10 nm- 840 PM PST Sat Jan 16 2021 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 10 PM PST THIS EVENING... ...HAZARDOUS SEAS WATCH REMAINS IN EFFECT FROM SUNDAY AFTERNOON THROUGH MONDAY MORNING... * WHAT...For the Small Craft Advisory, seas around 10 feet. For the Hazardous Seas Watch, very steep and hazardous seas 14 to 19 feet possible. * WHERE...Pt St George to Cape Mendocino out 10 nm. * WHEN...For the Small Craft Advisory, until 10 PM PST this evening. For the Hazardous Seas Watch, from Sunday afternoon through Monday morning. * IMPACTS...Very steep and hazardous seas could capsize or cause damage to vessels. PRECAUTIONARY/PREPAREDNESS ACTIONS... Consider altering your plans to avoid possible hazardous sea conditions. && $$ PZZ455-171245- /O.CON.KEKA.SC.Y.0006.000000T0000Z-210118T0000Z/ /O.CON.KEKA.SE.A.0003.210118T0000Z-210118T1800Z/ Cape Mendocino to Pt Arena out 10 nm- 840 PM PST Sat Jan 16 2021 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 4 PM PST SUNDAY... ...HAZARDOUS SEAS WATCH REMAINS IN EFFECT FROM SUNDAY AFTERNOON THROUGH MONDAY MORNING... * WHAT...For the Small Craft Advisory, north winds 10 to 20 kt with gusts up to 30 kt and seas 8 to 13 feet. For the Hazardous Seas Watch, very steep and hazardous seas 14 to 19 feet possible. * WHERE...Cape Mendocino to Pt Arena out 10 nm. * WHEN...For the Small Craft Advisory, until 4 PM PST Sunday. For the Hazardous Seas Watch, from Sunday afternoon through Monday morning. * IMPACTS...Very steep and hazardous seas could capsize or cause damage to vessels. PRECAUTIONARY/PREPAREDNESS ACTIONS... Consider altering your plans to avoid possible hazardous sea conditions. && $$
125 WHUS76 KEKA 170546 MWWEKA URGENT - MARINE WEATHER MESSAGE National Weather Service Eureka CA 946 PM PST Sat Jan 16 2021 PZZ470-171400- /O.CON.KEKA.SC.Y.0007.000000T0000Z-210118T0000Z/ /O.CON.KEKA.GL.W.0005.210118T0000Z-210119T0600Z/ Pt St George to Cape Mendocino 10 to 60 nm- 946 PM PST Sat Jan 16 2021 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 4 PM PST SUNDAY... ...GALE WARNING REMAINS IN EFFECT FROM 4 PM SUNDAY TO 10 PM PST MONDAY... * WHAT...For the Gale Warning, north winds 25 to 35 kt with gusts up to 45 kt and seas 16 to 21 feet expected. For the Small Craft Advisory, north winds 20 to 30 kt with gusts up to 35 kt and seas 10 to 15 feet. * WHERE...Pt St George to Cape Mendocino 10 to 60 nm. * WHEN...For the Gale Warning, from 4 PM Sunday to 10 PM PST Monday. For the Small Craft Advisory, until 4 PM PST Sunday. * IMPACTS...Strong winds will cause hazardous seas which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should alter plans to avoid these hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for severe conditions. && $$ PZZ475-171400- /O.CON.KEKA.SC.Y.0006.000000T0000Z-210118T0000Z/ /O.CON.KEKA.GL.W.0005.210118T0000Z-210119T0600Z/ Cape Mendocino to Pt Arena 10 to 60 nm- 946 PM PST Sat Jan 16 2021 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 4 PM PST SUNDAY... ...GALE WARNING REMAINS IN EFFECT FROM 4 PM SUNDAY TO 10 PM PST MONDAY... * WHAT...For the Gale Warning, north winds 25 to 35 kt with gusts up to 45 kt and seas 16 to 21 feet expected. For the Small Craft Advisory, north winds 20 to 25 kt with gusts up to 35 kt and seas 9 to 14 feet. * WHERE...Cape Mendocino to Pt Arena 10 to 60 nm. * WHEN...For the Gale Warning, from 4 PM Sunday to 10 PM PST Monday. For the Small Craft Advisory, until 4 PM PST Sunday. * IMPACTS...Strong winds will cause hazardous seas which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should alter plans to avoid these hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for severe conditions. && $$ PZZ450-171400- /O.EXT.KEKA.SC.Y.0006.000000T0000Z-210117T1100Z/ /O.CON.KEKA.SE.A.0003.210118T0000Z-210118T1800Z/ Pt St George to Cape Mendocino out 10 nm- 946 PM PST Sat Jan 16 2021 ...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 3 AM PST SUNDAY... ...HAZARDOUS SEAS WATCH REMAINS IN EFFECT FROM SUNDAY AFTERNOON THROUGH MONDAY MORNING... * WHAT...For the Small Craft Advisory, seas around 8 feet. For the Hazardous Seas Watch, very steep and hazardous seas 14 to 19 feet possible. * WHERE...Pt St George to Cape Mendocino out 10 nm. * WHEN...For the Small Craft Advisory, until 3 AM PST Sunday. For the Hazardous Seas Watch, from Sunday afternoon through Monday morning. * IMPACTS...Very steep and hazardous seas could capsize or cause damage to vessels. PRECAUTIONARY/PREPAREDNESS ACTIONS... Consider altering your plans to avoid possible hazardous sea conditions. && $$ PZZ455-171400- /O.CON.KEKA.SC.Y.0006.000000T0000Z-210118T0000Z/ /O.CON.KEKA.SE.A.0003.210118T0000Z-210118T1800Z/ Cape Mendocino to Pt Arena out 10 nm- 946 PM PST Sat Jan 16 2021 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 4 PM PST SUNDAY... ...HAZARDOUS SEAS WATCH REMAINS IN EFFECT FROM SUNDAY AFTERNOON THROUGH MONDAY MORNING... * WHAT...For the Small Craft Advisory, north winds 10 to 20 kt with gusts up to 30 kt and seas 8 to 13 feet. For the Hazardous Seas Watch, very steep and hazardous seas 14 to 19 feet possible. * WHERE...Cape Mendocino to Pt Arena out 10 nm. * WHEN...For the Small Craft Advisory, until 4 PM PST Sunday. For the Hazardous Seas Watch, from Sunday afternoon through Monday morning. * IMPACTS...Very steep and hazardous seas could capsize or cause damage to vessels. PRECAUTIONARY/PREPAREDNESS ACTIONS... Consider altering your plans to avoid possible hazardous sea conditions. && $$
942 WHUS76 KEKA 171009 MWWEKA URGENT - MARINE WEATHER MESSAGE National Weather Service Eureka CA 209 AM PST Sun Jan 17 2021 PZZ450-171815- /O.EXT.KEKA.SC.Y.0006.000000T0000Z-210118T0000Z/ /O.UPG.KEKA.SE.A.0003.210118T0000Z-210118T1800Z/ /O.NEW.KEKA.SE.W.0007.210118T0000Z-210118T1800Z/ Pt St George to Cape Mendocino out 10 nm- 209 AM PST Sun Jan 17 2021 ...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 4 PM PST THIS AFTERNOON... ...HAZARDOUS SEAS WARNING IN EFFECT FROM 4 PM THIS AFTERNOON TO 10 AM PST MONDAY... * WHAT...For the Hazardous Seas Warning, very steep and hazardous seas 14 to 18 feet expected. For the Small Craft Advisory, north winds 10 to 20 kt with gusts up to 30 kt and seas 8 to 13 feet. * WHERE...Pt St George to Cape Mendocino out 10 nm. * WHEN...For the Hazardous Seas Warning, from 4 PM this afternoon to 10 AM PST Monday. For the Small Craft Advisory, until 4 PM PST 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. && $$ PZZ455-171815- /O.CON.KEKA.SC.Y.0006.000000T0000Z-210118T0000Z/ /O.UPG.KEKA.SE.A.0003.210118T0000Z-210118T1800Z/ /O.NEW.KEKA.SE.W.0007.210118T0000Z-210118T1800Z/ Cape Mendocino to Pt Arena out 10 nm- 209 AM PST Sun Jan 17 2021 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 4 PM PST THIS AFTERNOON... ...HAZARDOUS SEAS WARNING IN EFFECT FROM 4 PM THIS AFTERNOON TO 10 AM PST MONDAY... * WHAT...For the Hazardous Seas Warning, very steep and hazardous seas 14 to 18 feet expected. For the Small Craft Advisory, north winds 10 to 20 kt with gusts up to 30 kt and seas 9 to 14 feet. * WHERE...Cape Mendocino to Pt Arena out 10 nm. * WHEN...For the Hazardous Seas Warning, from 4 PM this afternoon to 10 AM PST Monday. For the Small Craft Advisory, until 4 PM PST this afternoon. * IMPACTS...Very steep and hazardous seas could capsize or cause damage to vessels. PRECAUTIONARY/PREPAREDNESS ACTIONS... Recreational boaters should remain in port. Commercial vessels should prepare for rough seas and consider remaining in port until hazardous seas subside. && $$ PZZ475-171815- /O.EXT.KEKA.SC.Y.0006.000000T0000Z-210118T0900Z/ /O.EXT.KEKA.GL.W.0005.210118T0900Z-210119T0600Z/ Cape Mendocino to Pt Arena 10 to 60 nm- 209 AM PST Sun Jan 17 2021 ...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 1 AM PST MONDAY... ...GALE WARNING NOW IN EFFECT FROM 1 AM TO 10 PM PST MONDAY... * WHAT...For the Gale Warning, north winds 25 to 35 kt with gusts up to 45 kt and seas 16 to 21 feet expected. For the Small Craft Advisory, north winds 20 to 25 kt with gusts up to 35 kt and seas 13 to 18 feet. * WHERE...Cape Mendocino to Pt Arena 10 to 60 nm. * WHEN...For the Gale Warning, from 1 AM to 10 PM PST Monday. For the Small Craft Advisory, until 1 AM PST Monday. * IMPACTS...Strong winds will cause hazardous seas which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should alter plans to avoid these hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for severe conditions. && $$ PZZ470-171815- /O.CON.KEKA.SC.Y.0007.000000T0000Z-210118T0000Z/ /O.CON.KEKA.GL.W.0005.210118T0000Z-210119T0600Z/ Pt St George to Cape Mendocino 10 to 60 nm- 209 AM PST Sun Jan 17 2021 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 4 PM PST THIS AFTERNOON... ...GALE WARNING REMAINS IN EFFECT FROM 4 PM THIS AFTERNOON TO 10 PM PST MONDAY... * WHAT...For the Gale Warning, north winds 25 to 35 kt with gusts up to 45 kt and seas 17 to 22 feet expected. For the Small Craft Advisory, north winds 15 to 25 kt with gusts up to 35 kt and seas 11 to 16 feet. * WHERE...Pt St George to Cape Mendocino 10 to 60 nm. * WHEN...For the Gale Warning, from 4 PM this afternoon to 10 PM PST Monday. For the Small Craft Advisory, until 4 PM PST this afternoon. * IMPACTS...Strong winds will cause hazardous seas which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should alter plans to avoid these hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for severe conditions. && $$
What forecasters said that day
The local office's own words before this hazardous seas watch 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 watch went out at Jan 15, 3:00 PM PST, 11 hours 16 minutes earlier.
Area forecast discussion, Jan 15, 3:00 PM PST, 11 hours 16 minutes before
AREA FORECAST DISCUSSION
National Weather Service Eureka CA
300 PM PST Fri Jan 15 2021
.SYNOPSIS...Dry and mild conditions will prevail as high pressure
ridging expands through Saturday. Northerly to easterly winds
will be on the increase Saturday. Hints of a pattern change
showing up mid to late next week.
&&
.DISCUSSION...Some trace amounts of light rain was observed this
morning in isolated coastal areas along with overcast skies as a
weak front passes. Radar continued to show light returns in the
early afternoon with very little if any light rain reaching the
ground. The upper cloud deck will thin out overnight, but the
conditions will be favorable for widespread inland valley fog to
develop and linger into the late morning hours. Abundant sunshine
will be seen away from the immediate coast on Saturday, while
northerly ridgetop winds pickup in the evening and overnight, mainly
along Cape Mendocino. Temperatures aloft will gradually warm through
Saturday, particularly across the southern half of the area where
850 mb temps of 15-17 degrees Celsius will correspond to afternoon
highs in the low to mid 70s in the interior valleys of Mendocino and
Lake County this weekend.
A shortwave will clip the area on Sunday and then dig south while
rapidly deepening with a synoptic positively tilted Great Basin
trough. This feature will quickly strengthen the pressure gradient
alongside the NEPAC building ridge. The result will be warm, dry,
and locally gusty conditions for NW CA through the first half of
next week. Winds may occasionally gust over 50 mph over the ridges
at times, especially Sunday night. Right now wind advisory
conditions look isolated and brief, but will need to be monitored.
The trough will cutoff from the flow later Tuesday as high
pressure noses back in, easing the pressure gradient. Refer to the
fire weather discussion below for additional details.
There is growing confidence the large dominant Pacific ridge will
weaken and begin retrograding west by midweek. This will open the
window for a pattern shift toward cooler and wetter weather.
There is uncertainty in the available moisture at that time if a
trough were to dig down, along with other details to be worked
out. /JJW
&&
.AVIATION...Multi-layered cloudiness has blanket most of the area
today, along with a bit of drizzle or very light rain along the
North Coast and some patches of fog. Clouds will continue through
the night. There is still the potential of fog and IFR ceilings
overnight tonight, but higher level cloudiness may continue to
impede better radiational cooling. There may be a bit of
shallow ground fog at KUKI toward daybreak as well, but have
not gone below prevailing 6SM visibility at this time. Winds
will be light. /SEC
&&
.MARINE...A series of westerly swells will aid in continuing 10 to
15 foot seas through early next week. Combined seas will build
further over the outer waters into the 15 to 25 foot range Sunday
evening through Monday afternoon as gale force northerlies develop.
After Monday, periods of hazardous marine conditions will persist
through mid-week as winds remain gusty out of the north.
/Garner&SEC
&&
.FIRE WEATHER...A shortwave trough will rapidly deepen as it
approaches NW CA Sunday evening and then dig southward along the
CA coast Sunday night, with another vigorous shortwave dropping
through the Great Basin later Monday helping to reinforce large
scale troughing from the intermountain west into southern CA. This
synoptic setup has the potential makings of an unseasonably
strong offshore wind event from Sunday night into Tuesday across
parts of Mendocino and Lake Counties, which is further supported
by ensemble standardized wind anomalies of 3-4 standard deviations
above normal early next week. Critical fire conditions are not
expected to be met given the relatively recent widespread
rainfall, which has kept fuel moisture in check. CB/JJW
&&
.BEACH HAZARDS...A long period swell is forecast to impact west
facing beaches through Monday. That swell will aid in a moderate
threat for hazardous surf Saturday and again on Monday, while
sneaker waves will be possible on Sunday. /Garner&SEC
&&
.EKA WATCHES/WARNINGS/ADVISORIES...
CA...None.
NORTHWEST CALIFORNIA COASTAL WATERS...Small Craft Advisory until 10 PM PST Saturday for PZZ450-455-470.
Gale Watch from Sunday morning through Monday afternoon for
PZZ470-475.
Small Craft Advisory until 10 AM PST Sunday for PZZ475.
&&
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For forecast zone information
see the forecast zone map online:
https://www.weather.gov/images/eka/zonemap.pngHazardous weather outlook, Jan 15, 3:40 AM PST, 22 hours 36 minutes before
Hazardous Weather Outlook National Weather Service Eureka CA 340 AM PST Fri Jan 15 2021 CAZ101>111-114-161145- Coastal Del Norte-Del Norte Interior-Northern Humboldt Coast- Southwestern Humboldt-Northern Humboldt Interior- Southern Humboldt Interior-Northern Trinity-Southern Trinity- Mendocino Coast-Northwestern Mendocino Interior- Northeastern Mendocino Interior-Northern Lake County- 340 AM PST Fri Jan 15 2021 This hazardous weather outlook is for northwest California. .DAY ONE...Today and tonight. No hazardous weather is expected at this time. .DAYS TWO THROUGH SEVEN...Saturday through Thursday. No hazardous weather is expected at this time. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected at this time. CAZ112-113-115-161145- Southwestern Mendocino Interior-Southeastern Mendocino Interior- Southern Lake County- 340 AM PST Fri Jan 15 2021 This hazardous weather outlook is for northwest California. .DAY ONE...Today and tonight. No hazardous weather is expected at this time. .DAYS TWO THROUGH SEVEN...Saturday through Thursday. Dry and windy conditions possible Sunday evening through Tuesday morning. Strongest wind gusts on exposed ridges. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected at this time.
The office that day
Everything else NWS Eureka, CA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jan 16, 2:38 AM PST | Wind Advisory | EKA | Lake, Mendocino | 4 days |
| Jan 16, 2:13 PM PST | Gale Warning | EKA | 55 hr |
Nearby
Hazardous Seas Watches in California, 2021Every hazardous seas watch 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.