Alert archive / Oregon / Hazardous Seas Warnings in 2021
Hazardous Seas Warning 26, NWS Medford, OR
NWS Medford, OR issued this hazardous seas warning at Mar 29, 2021, 2:59 AM PDT. It took effect at Mar 30, 2021, 2:00 PM PDT. It was in force for 21 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 29, 2021, 2:59 AM PDT (09:59 UTC)
- In effect from
- Mar 30, 2021, 2:00 PM PDT
- Expired
- Mar 31, 2021, 11:00 AM PDT
- In force
- 21 hr
- Issued by
- NWS Medford, OR
The text
As transmitted.
539 WHUS76 KMFR 290959 MWWMFR URGENT - MARINE WEATHER MESSAGE National Weather Service Medford OR 259 AM PDT Mon Mar 29 2021 PZZ376-292300- /O.NEW.KMFR.SE.W.0025.210329T0959Z-210329T2100Z/ /O.EXT.KMFR.SC.Y.0041.000000T0000Z-210331T1800Z/ /O.CAN.KMFR.SE.W.0024.210329T2100Z-210331T0600Z/ /O.CON.KMFR.GL.W.0019.210329T2100Z-210331T0600Z/ /O.NEW.KMFR.SE.W.0026.210331T0600Z-210331T1800Z/ Waters from Cape Blanco OR to Pt. St. George CA from 10 to 60 nm- 259 AM PDT Mon Mar 29 2021 ...HAZARDOUS SEAS WARNING IN EFFECT UNTIL 2 PM PDT THIS AFTERNOON... ...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 11 AM PDT WEDNESDAY... ...GALE WARNING REMAINS IN EFFECT FROM 2 PM THIS AFTERNOON TO 11 PM PDT TUESDAY... ...HAZARDOUS SEAS WARNING IN EFFECT FROM 11 PM TUESDAY TO 11 AM PDT WEDNESDAY... * WHAT...For the Gale Warning, north winds 25 to 35 kt with gusts up to 40 kt and very steep seas 11 to 14 ft expected. For the first Hazardous Seas Warning, very steep and hazardous seas 10 to 11 ft. For the second Hazardous Seas Warning, very steep and hazardous seas 10 to 12 ft expected. For the Small Craft Advisory, north winds 25 to 30 kt with gusts up to 35 kt and steep seas 9 to 11 ft. * WHERE...For the first Hazardous Seas Warning, areas generally beyond 20 NM from shore with Small Craft Advisory elsewhere. For the Gale Warning, most areas south of Cape Blanco. For the second Hazardous Seas Warning, most areas south of Port Orford with Small Craft Advisory conditions elsewhere. * WHEN...For the Gale Warning, from 2 PM this afternoon to 11 PM PDT Tuesday. For the first Hazardous Seas Warning, until 2 PM PDT this afternoon. For the second Hazardous Seas Warning, from 11 PM Tuesday to 11 AM PDT Wednesday. For the Small Craft Advisory, until 11 AM PDT Wednesday. * IMPACTS...Strong winds and very steep seas could capsize or damage vessels. Low visibility conditions are expected. * View the hazard area in detail at https://www.wrh.noaa.gov/map/?wfo=mfr PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should alter plans to avoid strong winds and very steep seas. Remain in port, seek safe harbor, alter course, and/or secure the vessel for severe conditions. && $$ PZZ356-292300- /O.EXT.KMFR.SC.Y.0041.000000T0000Z-210331T1800Z/ /O.CAN.KMFR.SE.W.0024.210329T2100Z-210331T0600Z/ /O.CON.KMFR.GL.W.0019.210329T2100Z-210331T0600Z/ Coastal waters from Cape Blanco OR to Pt. St. George CA out 10 nm- 259 AM PDT Mon Mar 29 2021 ...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 11 AM PDT WEDNESDAY... ...GALE WARNING REMAINS IN EFFECT FROM 2 PM THIS AFTERNOON TO 11 PM PDT TUESDAY... ...HAZARDOUS SEAS WARNING IS CANCELLED... * WHAT...North winds increasing to 25 to 35 kt gales this afternoon and evening and again Tuesday afternoon and evening. Steep seas 7 to 10 feet building to steep to very steep 10 to 14 feet Monday afternoon. * WHERE...Small Craft Advisory conditions all areas. Then gales expected south of Gold Beach beyond 4NM from shore this afternoon and evening. Gales expand northward to areas south of Port Orford beyond 4 NM from shore Tuesday afternoon and evening. Small Craft Advisory conditions all other areas. * WHEN...For the Gale Warning, from 2 PM this afternoon to 11 PM PDT Tuesday. For the Small Craft Advisory, until 11 AM PDT Wednesday. Strongest winds and highest seas are expected this afternoon and evening and again Tuesday afternoon and evening. * IMPACTS...Strong winds and very steep seas could capsize or damage vessels. Low visibility conditions are expected. * View the hazard area in detail at https://www.wrh.noaa.gov/map/?wfo=mfr PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should alter plans to avoid strong winds and very steep seas. Remain in port, seek safe harbor, alter course, and/or secure the vessel for severe conditions. && $$ PZZ370-292300- /O.NEW.KMFR.SE.W.0025.210329T0959Z-210329T2100Z/ /O.EXT.KMFR.SC.Y.0041.000000T0000Z-210331T1800Z/ /O.CAN.KMFR.SE.W.0024.210329T2100Z-210331T0600Z/ Waters from Florence to Cape Blanco OR from 10 to 60 nm- 259 AM PDT Mon Mar 29 2021 ...HAZARDOUS SEAS WARNING IN EFFECT UNTIL 2 PM PDT THIS AFTERNOON... ...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 11 AM PDT WEDNESDAY... * WHAT...For the Hazardous Seas Warning, very steep and hazardous seas 11 to 13 ft. For the Small Craft Advisory, north winds 15 to 25 kt with gusts up to 35 kt and steep seas 10 to 11 ft at 10 seconds. * WHERE...Very steep seas will impact areas generally beyond 15 NM from shore, closer to shore from Reedsport northward. Small Craft Advisory conditions elsewhere. * WHEN...For the Hazardous Seas Warning, until 2 PM PDT this afternoon. For the Small Craft Advisory, until 11 AM PDT Wednesday. * IMPACTS...Very steep and hazardous seas could capsize or damage vessels. Bar crossings will become especially treacherous. * View the hazard area in detail at https://www.wrh.noaa.gov/map/?wfo=mfr PRECAUTIONARY/PREPAREDNESS ACTIONS... Recreational boaters should remain in port. Commercial vessels should prepare for very steep seas and consider remaining in port until conditions improve. && $$ PZZ350-292300- /O.EXT.KMFR.SC.Y.0041.000000T0000Z-210331T1800Z/ /O.CAN.KMFR.SE.W.0024.210329T2100Z-210331T0600Z/ Coastal waters from Florence to Cape Blanco OR out 10 nm- 259 AM PDT Mon Mar 29 2021 ...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 11 AM PDT WEDNESDAY... ...HAZARDOUS SEAS WARNING IS CANCELLED... * WHAT...North winds 15 to 25 kt increasing to 25 to 30 kt Tuesday afternoon and evening. Steep northwest seas 10 to 12 feet at 11 seconds through Tuesday evening then subsiding to 8 feet or less. * WHERE...All areas. * WHEN...Until 11 AM PDT Wednesday. Strongest winds and steepest seas are expected Tuesday afternoon and evening. * IMPACTS...Gusty winds and/or steep seas could capsize or damage smaller vessels. * View the hazard area in detail at https://www.wrh.noaa.gov/map/?wfo=mfr PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should remain in port and avoid the area of hazardous conditions. && $$ Visit us at https://www.weather.gov/Medford
6 follow-up statements
765 WHUS76 KMFR 292143 MWWMFR URGENT - MARINE WEATHER MESSAGE National Weather Service Medford OR 243 PM PDT Mon Mar 29 2021 PZZ376-301045- /O.CAN.KMFR.SC.Y.0041.000000T0000Z-210331T1800Z/ /O.CON.KMFR.GL.W.0019.000000T0000Z-210331T0600Z/ /O.NEW.KMFR.SC.Y.0042.210331T0600Z-210331T1800Z/ /O.CON.KMFR.SE.W.0026.210331T0600Z-210331T1800Z/ Waters from Cape Blanco OR to Pt. St. George CA from 10 to 60 nm- 243 PM PDT Mon Mar 29 2021 ...GALE WARNING REMAINS IN EFFECT UNTIL 11 PM PDT TUESDAY... ...SMALL CRAFT ADVISORY IN EFFECT FROM 11 PM TUESDAY TO 11 AM PDT WEDNESDAY... ...HAZARDOUS SEAS WARNING REMAINS IN EFFECT FROM 11 PM TUESDAY TO 11 AM PDT WEDNESDAY... * WHAT...North winds 25 to 35 kt with gusts to 40 kt and very steep seas of 10 to 13 feet are expected this afternoon through Tuesday evening. Steep to very steep seas of 8 to 12 feet and gusty north winds of 20 to 30 kt will linger Tuesday night into Wednesday morning. * WHERE...Very steep seas will affect all areas today through Tuesday evening. Gales are expected south of Gold Beach beyond 4NM from shore this afternoon through Tuesday morning. Gales expand northward to areas from Port Orford south Tuesday afternoon and evening. Very steep seas will affect areas south of Port Orford Tuesday night into Wednesday morning with Small Craft Advisory conditions elsewhere. * WHEN...For the Gale Warning, until 11 PM PDT Tuesday. For the Hazardous Seas Warning, from 11 PM Tuesday to 11 AM PDT Wednesday. For the Small Craft Advisory, from 11 PM Tuesday to 11 AM PDT Wednesday. * IMPACTS...Strong winds and very steep seas could capsize or damage vessels. Low visibility conditions are expected. * View the hazard area in detail at https://www.wrh.noaa.gov/map/?wfo=mfr PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should alter plans to avoid strong winds and very steep seas. Remain in port, seek safe harbor, alter course, and/or secure the vessel for severe conditions. && $$ PZZ350-370-301045- /O.CON.KMFR.SC.Y.0041.000000T0000Z-210331T1800Z/ /O.EXB.KMFR.SE.W.0026.210330T2100Z-210331T0600Z/ Coastal waters from Florence to Cape Blanco OR out 10 nm- Waters from Florence to Cape Blanco OR from 10 to 60 nm- 243 PM PDT Mon Mar 29 2021 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 11 AM PDT WEDNESDAY... ...HAZARDOUS SEAS WARNING IN EFFECT FROM 2 PM TO 11 PM PDT TUESDAY... * WHAT...North winds 15 to 25 kt with gusts up to 30 kt and steep 10 to 11 ft seas at 11 seconds are expected today through Tuesday morning. Winds will increase to 20 to 30 kt Tuesday afternoon and evening with steep to very steep seas of 9 to 10 feet due to a mix of short period wind seas and northwest swell. Steep seas and 15 to 25 kt north winds will linger Tuesday night into Wednesday morning. * WHERE...All areas will be affected by conditions hazardous to small craft today through Tuesday morning. Then very steep hazardous seas will develop Tuesday afternoon and evening across the waters from Charleston south beyond 4 nm from shore with small craft advisory conditions elsewhere. Small craft advisory conditions will affect most the waters Tuesday night into Wednesday morning. * WHEN...For the Hazardous Seas Warning, from 2 PM to 11 PM PDT Tuesday. For the Small Craft Advisory, until 11 AM PDT Wednesday. * IMPACTS...Very steep and hazardous seas could capsize or damage vessels. Bar crossings will become especially treacherous. * View the hazard area in detail at https://www.wrh.noaa.gov/map/?wfo=mfr PRECAUTIONARY/PREPAREDNESS ACTIONS... Recreational boaters should remain in port. Commercial vessels should prepare for very steep seas and consider remaining in port until conditions improve. && $$ PZZ356-301045- /O.CON.KMFR.GL.W.0019.000000T0000Z-210331T0600Z/ /O.CON.KMFR.SC.Y.0041.000000T0000Z-210331T1800Z/ Coastal waters from Cape Blanco OR to Pt. St. George CA out 10 nm- 243 PM PDT Mon Mar 29 2021 ...GALE WARNING REMAINS IN EFFECT UNTIL 11 PM PDT TUESDAY... ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 11 AM PDT WEDNESDAY... * WHAT...North winds increasing to 25 to 35 kt gales this afternoon and evening. Winds will briefly lower to 15 to 25 kt late tonight and Tuesday morning then increase again to 25 to 35 kt Tuesday afternoon and evening. Steep to very steep seas of 8 to 13 feet are expected this afternoon through Tuesday evening. Steep seas and gusty north winds of 15 to 25 kt will linger Tuesday night into Wednesday morning. * WHERE...Very steep seas will affect most the waters beyond 2 nm from shore from Cape Blanco southward. Gales are expected south of Gold Beach beyond 4NM from shore this afternoon and evening. Gales expand northward to areas from Port Orford south beyond 4 NM from shore Tuesday afternoon and evening. Small Craft Advisory conditions are expected for areas within 2 nm of shore through Tuesday evening and for most all areas Tuesday night into Wednesday morning. * WHEN...For the Gale Warning, from 2 PM this afternoon to 11 PM PDT Tuesday. For the Small Craft Advisory, until 11 AM PDT Wednesday. Strongest winds and highest seas are expected this afternoon and evening and again Tuesday afternoon and evening. * IMPACTS...Strong winds and very steep seas could capsize or damage vessels. Low visibility conditions are expected. * View the hazard area in detail at https://www.wrh.noaa.gov/map/?wfo=mfr PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should alter plans to avoid strong winds and very steep seas. Remain in port, seek safe harbor, alter course, and/or secure the vessel for severe conditions. && $$ Visit us at https://www.weather.gov/Medford
339 WHUS76 KMFR 300926 MWWMFR URGENT - MARINE WEATHER MESSAGE National Weather Service Medford OR 226 AM PDT Tue Mar 30 2021 PZZ376-302230- /O.CON.KMFR.GL.W.0019.000000T0000Z-210331T0600Z/ /O.CON.KMFR.SE.W.0026.210331T0600Z-210331T1800Z/ /O.CON.KMFR.SC.Y.0042.210331T0600Z-210331T1800Z/ Waters from Cape Blanco OR to Pt. St. George CA from 10 to 60 nm- 226 AM PDT Tue Mar 30 2021 ...GALE WARNING REMAINS IN EFFECT UNTIL 11 PM PDT THIS EVENING... ...HAZARDOUS SEAS WARNING REMAINS IN EFFECT FROM 11 PM THIS EVENING TO 11 AM PDT WEDNESDAY... ...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 11 PM THIS EVENING TO 11 AM PDT WEDNESDAY... * WHAT...North winds 25 to 35 kt with gusts to 40 kt and very steep and hazardous seas of 11 to 14 ft at 11 seconds through tonight. Winds ease to 15 to 25 kt early Wednesday, but seas remain very steep and hazardous at 9 to 13 ft through Wednesday morning. * WHERE...All areas. * WHEN...For the Gale Warning, until 11 PM PDT this evening. For the Hazardous Seas Warning, from 11 PM this evening to 11 AM PDT Wednesday. For the Small Craft Advisory, from 11 PM this evening to 11 AM PDT Wednesday. * IMPACTS...Strong winds and very steep seas could capsize or damage vessels. Low visibility conditions are expected. * View the hazard area in detail at https://www.wrh.noaa.gov/map/?wfo=mfr PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should alter plans to avoid strong winds and very steep seas. Remain in port, seek safe harbor, alter course, and/or secure the vessel for severe conditions. && $$ PZZ356-302230- /O.CON.KMFR.GL.W.0019.000000T0000Z-210331T0600Z/ /O.CON.KMFR.SC.Y.0041.000000T0000Z-210331T1800Z/ Coastal waters from Cape Blanco OR to Pt. St. George CA out 10 nm- 226 AM PDT Tue Mar 30 2021 ...GALE WARNING REMAINS IN EFFECT UNTIL 11 PM PDT THIS EVENING... ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 11 AM PDT WEDNESDAY... * WHAT...North winds 25 to 35 kt with gusts to 40 kt and very steep and hazardous seas of 11 to 14 ft at 11 seconds through tonight. Winds ease to 15 to 25 kt early Wednesday, but seas remain very steep and hazardous at 8 to 13 ft through Wednesday morning. * WHERE...Gales are expected mainly beyond 2 nm from shore through this evening. Then all areas will experience conditions hazardous to small craft. * WHEN...For the Gale Warning, until 11 PM PDT this evening. For the Small Craft Advisory, until 11 AM PDT Wednesday. * IMPACTS...Strong winds and very steep seas could capsize or damage vessels. Low visibility conditions are expected. * View the hazard area in detail at https://www.wrh.noaa.gov/map/?wfo=mfr PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should alter plans to avoid strong winds and very steep seas. Remain in port, seek safe harbor, alter course, and/or secure the vessel for severe conditions. && $$ PZZ350-370-302230- /O.CON.KMFR.SC.Y.0041.000000T0000Z-210331T1800Z/ /O.CON.KMFR.SE.W.0026.210330T2100Z-210331T0600Z/ Coastal waters from Florence to Cape Blanco OR out 10 nm- Waters from Florence to Cape Blanco OR from 10 to 60 nm- 226 AM PDT Tue Mar 30 2021 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 11 AM PDT WEDNESDAY... ...HAZARDOUS SEAS WARNING REMAINS IN EFFECT FROM 2 PM THIS AFTERNOON TO 11 PM PDT THIS EVENING... * WHAT...North winds 15 to 25 kt with very steep and hazardous seas of 9 to 12 ft at 11 seconds. * WHERE...All areas. Very steep and hazardous seas are expected for areas south of Coos Bay. * WHEN...The strongest winds and steepest seas are expected this afternoon. For the Hazardous Seas Warning, from 2 PM this afternoon to 11 PM PDT this evening. For the Small Craft Advisory, until 11 AM PDT Wednesday. * IMPACTS...Very steep and hazardous seas could capsize or damage vessels. Bar crossings will become especially treacherous. * View the hazard area in detail at https://www.wrh.noaa.gov/map/?wfo=mfr PRECAUTIONARY/PREPAREDNESS ACTIONS... Recreational boaters should remain in port. Commercial vessels should prepare for very steep seas and consider remaining in port until conditions improve. && $$ Visit us at https://www.weather.gov/Medford
086 WHUS76 KMFR 302208 MWWMFR URGENT - MARINE WEATHER MESSAGE National Weather Service Medford OR 308 PM PDT Tue Mar 30 2021 PZZ356-311115- /O.CAN.KMFR.GL.W.0019.000000T0000Z-210331T0600Z/ /O.EXA.KMFR.SE.W.0026.000000T0000Z-210331T0600Z/ /O.CON.KMFR.SC.Y.0041.000000T0000Z-210331T1800Z/ Coastal waters from Cape Blanco OR to Pt. St. George CA out 10 nm- 308 PM PDT Tue Mar 30 2021 ...HAZARDOUS SEAS WARNING IN EFFECT UNTIL 11 PM PDT THIS EVENING... ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 11 AM PDT WEDNESDAY... ...GALE WARNING IS CANCELLED... * WHAT...North winds 25 to 30 kt with gusts to 35 kt and very steep and hazardous seas of 9 to 12 ft at 9 to 11 seconds through tonight. Winds ease to 15 to 25 kt early Wednesday morning, but seas remain steep at 7 to 9 ft. * WHERE...Hazardous seas is for all areas except protected near shore locations. The small craft Wednesday morning is from 1 NM from shore except closer to capes. * WHEN...For the Hazardous Seas Warning, until 11 PM PDT this evening. For the Small Craft Advisory, until 11 AM PDT Wednesday. * IMPACTS...Very steep and hazardous seas could capsize or damage vessels. Bar crossings will become especially treacherous. * View the hazard area in detail at https://www.wrh.noaa.gov/map/?wfo=mfr PRECAUTIONARY/PREPAREDNESS ACTIONS... Recreational boaters should remain in port. Commercial vessels should prepare for very steep seas and consider remaining in port until conditions improve. && $$ PZZ376-311115- /O.CAN.KMFR.GL.W.0019.000000T0000Z-210331T0600Z/ /O.EXT.KMFR.SE.W.0026.210330T2208Z-210331T1800Z/ /O.CON.KMFR.SC.Y.0042.210331T0600Z-210331T1800Z/ Waters from Cape Blanco OR to Pt. St. George CA from 10 to 60 nm- 308 PM PDT Tue Mar 30 2021 ...HAZARDOUS SEAS WARNING NOW IN EFFECT UNTIL 11 AM PDT WEDNESDAY... ...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 11 PM THIS EVENING TO 11 AM PDT WEDNESDAY... ...GALE WARNING IS CANCELLED... * WHAT...North winds 25 to 35 kt with gusts to 40 kt and very steep and hazardous seas of 11 to 14 ft at 10 seconds through tonight. Winds ease to 15 to 25 kt early Wednesday morning, but seas remain very steep and hazardous at 9 to 13 ft at 10 seconds. * WHERE...All areas, reducing to beyond 15 NM from shore, from Gold Beach south. * WHEN...For the Hazardous Seas Warning, until 11 AM PDT Wednesday. For the Small Craft Advisory, from 11 PM this evening to 11 AM PDT Wednesday. * IMPACTS...Very steep and hazardous seas could capsize or damage vessels. Bar crossings will become especially treacherous. * View the hazard area in detail at https://www.wrh.noaa.gov/map/?wfo=mfr PRECAUTIONARY/PREPAREDNESS ACTIONS... Recreational boaters should remain in port. Commercial vessels should prepare for very steep seas and consider remaining in port until conditions improve. && $$ PZZ350-370-311115- /O.CON.KMFR.SE.W.0026.000000T0000Z-210331T0600Z/ /O.CON.KMFR.SC.Y.0041.000000T0000Z-210331T1800Z/ Coastal waters from Florence to Cape Blanco OR out 10 nm- Waters from Florence to Cape Blanco OR from 10 to 60 nm- 308 PM PDT Tue Mar 30 2021 ...HAZARDOUS SEAS WARNING REMAINS IN EFFECT UNTIL 11 PM PDT THIS EVENING... ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 11 AM PDT WEDNESDAY... * WHAT...North winds 15 to 25 kt with steep to very steep and hazardous seas of 7 to 11 ft at 10 seconds. * WHERE...All areas, reducing to areas south of Coos Bay. * WHEN...For the Hazardous Seas Warning, from 2 PM this afternoon to 11 PM PDT this evening. For the Small Craft Advisory, until 11 AM PDT Wednesday. * IMPACTS...Very steep and hazardous seas could capsize or damage vessels. Bar crossings will become especially treacherous. * View the hazard area in detail at https://www.wrh.noaa.gov/map/?wfo=mfr PRECAUTIONARY/PREPAREDNESS ACTIONS... Recreational boaters should remain in port. Commercial vessels should prepare for very steep seas and consider remaining in port until conditions improve. && $$ Visit us at https://www.weather.gov/Medford
800 WHUS76 KMFR 310448 MWWMFR URGENT - MARINE WEATHER MESSAGE National Weather Service Medford OR 948 PM PDT Tue Mar 30 2021 PZZ350-356-370-311800- /O.EXT.KMFR.SE.W.0026.000000T0000Z-210331T0900Z/ /O.CON.KMFR.SC.Y.0041.000000T0000Z-210331T1800Z/ Coastal waters from Florence to Cape Blanco OR out 10 nm- Coastal waters from Cape Blanco OR to Pt. St. George CA out 10 nm- Waters from Florence to Cape Blanco OR from 10 to 60 nm- 948 PM PDT Tue Mar 30 2021 ...HAZARDOUS SEAS WARNING NOW IN EFFECT UNTIL 2 AM PDT WEDNESDAY... ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 11 AM PDT WEDNESDAY... * WHAT...North winds 25 to 30 kt with gusts to 35 kt and very steep and hazardous seas of 9 to 12 ft at 9 to 11 seconds through tonight. Winds ease to 15 to 25 kt early Wednesday morning, but seas remain steep at 7 to 9 ft. * WHERE...Warning level seas are expected in all areas except protected near shore locations and areas from Bandon northward. Then Small Craft Advisory conditions are expected all areas south of Coos Bay. * WHEN...For the Hazardous Seas Warning, until 2 AM PDT Wednesday. For the Small Craft Advisory, until 11 AM PDT Wednesday. * IMPACTS...Very steep and hazardous seas could capsize or damage vessels. Bar crossings will become especially treacherous. * View the hazard area in detail at https://www.wrh.noaa.gov/map/?wfo=mfr PRECAUTIONARY/PREPAREDNESS ACTIONS... Recreational boaters should remain in port. Commercial vessels should prepare for very steep seas and consider remaining in port until conditions improve. && $$ PZZ376-311800- /O.CON.KMFR.SE.W.0026.000000T0000Z-210331T1800Z/ /O.EXT.KMFR.SC.Y.0042.210331T0900Z-210331T1800Z/ Waters from Cape Blanco OR to Pt. St. George CA from 10 to 60 nm- 948 PM PDT Tue Mar 30 2021 ...HAZARDOUS SEAS WARNING REMAINS IN EFFECT UNTIL 11 AM PDT WEDNESDAY... ...SMALL CRAFT ADVISORY NOW IN EFFECT FROM 2 AM TO 11 AM PDT WEDNESDAY... * WHAT...North winds 25 to 35 kt with gusts to 40 kt and very steep and hazardous seas of 11 to 14 ft at 10 seconds through tonight. Winds ease to 15 to 25 kt early Wednesday morning, but seas remain very steep and hazardous at 9 to 13 ft at 10 seconds. * WHERE...All areas initially, reducing to beyond 15 NM from shore, from Gold Beach south. * WHEN...For the Hazardous Seas Warning, until 11 AM PDT Wednesday. For the Small Craft Advisory, from 2 AM to 11 AM PDT Wednesday. * IMPACTS...Very steep and hazardous seas could capsize or damage vessels. Bar crossings will become especially treacherous. * View the hazard area in detail at https://www.wrh.noaa.gov/map/?wfo=mfr PRECAUTIONARY/PREPAREDNESS ACTIONS... Recreational boaters should remain in port. Commercial vessels should prepare for very steep seas and consider remaining in port until conditions improve. && $$ Visit us at https://www.weather.gov/Medford
755 WHUS76 KMFR 310913 MWWMFR URGENT - MARINE WEATHER MESSAGE National Weather Service Medford OR 213 AM PDT Wed Mar 31 2021 PZZ350-356-370-311800- /O.EXP.KMFR.SE.W.0026.000000T0000Z-210331T0900Z/ /O.CON.KMFR.SC.Y.0041.000000T0000Z-210331T1800Z/ Coastal waters from Florence to Cape Blanco OR out 10 nm- Coastal waters from Cape Blanco OR to Pt. St. George CA out 10 nm- Waters from Florence to Cape Blanco OR from 10 to 60 nm- 213 AM PDT Wed Mar 31 2021 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 11 AM PDT THIS MORNING... ...HAZARDOUS SEAS WARNING HAS EXPIRED... * WHAT...Northeast winds 15 to 25 kt and steep seas 7 to 9 ft. * WHERE...All areas from Coos Bay southward. * WHEN...Until 11 AM PDT this morning. * IMPACTS...Gusty winds and/or steep seas could capsize or damage smaller vessels. * View the hazard area in detail at https://www.wrh.noaa.gov/map/?wfo=mfr PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should remain in port and avoid the area of hazardous conditions. && $$ PZZ376-311800- /O.CON.KMFR.SE.W.0026.000000T0000Z-210331T1800Z/ /O.CON.KMFR.SC.Y.0042.000000T0000Z-210331T1800Z/ Waters from Cape Blanco OR to Pt. St. George CA from 10 to 60 nm- 213 AM PDT Wed Mar 31 2021 ...HAZARDOUS SEAS WARNING REMAINS IN EFFECT UNTIL 11 AM PDT THIS MORNING... ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 11 AM PDT THIS MORNING... * WHAT...North winds 15 to 25 kt with steep to very steep and hazardous seas of 8 to 11 ft at 10 seconds. * WHERE...All areas. The steepest seas and strongest winds are expected beyond 15 nm from shore and south of Port Orford. * WHEN...Until 11 AM PDT this morning. * IMPACTS...Very steep and hazardous seas could capsize or damage vessels. Bar crossings will become especially treacherous. * View the hazard area in detail at https://www.wrh.noaa.gov/map/?wfo=mfr PRECAUTIONARY/PREPAREDNESS ACTIONS... Recreational boaters should remain in port. Commercial vessels should prepare for very steep seas and consider remaining in port until conditions improve. && $$ Visit us at https://www.weather.gov/Medford
854 WHUS76 KMFR 311543 MWWMFR URGENT - MARINE WEATHER MESSAGE National Weather Service Medford OR 843 AM PDT Wed Mar 31 2021 PZZ376-312100- /O.EXT.KMFR.SC.Y.0042.000000T0000Z-210331T2100Z/ /O.CON.KMFR.SE.W.0026.000000T0000Z-210331T1800Z/ Waters from Cape Blanco OR to Pt. St. George CA from 10 to 60 nm- 843 AM PDT Wed Mar 31 2021 ...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 2 PM PDT THIS AFTERNOON... ...HAZARDOUS SEAS WARNING REMAINS IN EFFECT UNTIL 11 AM PDT THIS MORNING... * WHAT...North northeast winds 15 to 25 kt with steep to very steep and hazardous seas of 8 to 11 ft at 10 seconds. Winds easing to 15 kt and seas lowering to 6 to 8 feet this afternoon. * WHERE...All areas. The steepest seas and strongest winds are expected beyond 15 nm from shore and south of Port Orford. * WHEN...For the Hazardous Seas Warning, until 11 AM PDT this morning. For the Small Craft Advisory, until 2 PM PDT this afternoon. * IMPACTS...Steep to very steep and hazardous seas could capsize or damage vessels. Bar crossings will be difficult. * View the hazard area in detail at https://www.wrh.noaa.gov/map/?wfo=mfr PRECAUTIONARY/PREPAREDNESS ACTIONS... Recreational boaters should remain in port. Commercial vessels should prepare for very steep seas and consider remaining in port until conditions improve. && $$ PZZ350-356-370-311800- /O.CON.KMFR.SC.Y.0041.000000T0000Z-210331T1800Z/ Coastal waters from Florence to Cape Blanco OR out 10 nm- Coastal waters from Cape Blanco OR to Pt. St. George CA out 10 nm- Waters from Florence to Cape Blanco OR from 10 to 60 nm- 843 AM PDT Wed Mar 31 2021 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 11 AM PDT THIS MORNING... * WHAT...Northeast winds 15 to 25 kt and steep seas 7 to 9 ft. Winds easing and seas lowering below 7 feet this afternoon. * WHERE...All areas from Coos Bay southward. * WHEN...Until 11 AM PDT this morning. * IMPACTS...Gusty winds and/or steep seas could capsize or damage smaller vessels. * View the hazard area in detail at https://www.wrh.noaa.gov/map/?wfo=mfr PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should remain in port and avoid the area of hazardous conditions. && $$ Visit us at https://www.weather.gov/Medford
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 Medford, OR wrote its last area forecast discussion before this hazardous seas warning went out at Mar 28, 10:37 PM PDT, 4 hours 22 minutes earlier.
Area forecast discussion, Mar 28, 10:37 PM PDT, 4 hours 22 minutes before
Area Forecast Discussion
National Weather Service Medford OR
1037 PM PDT Sun Mar 28 2021
.Updated Aviation Discussion.
.DISCUSSION...29/00Z NAM in.
It is quite windy east of the Cascades this evening, with plumes
of dust blowing off the dry lake beds. A Wind Advisory remains in
effect. See NPWMFR for details.
The winds have increased ahead of an incoming front. Precipitation
has moved onshore ahead of it, mostly along the north coast and
in the Umpqua Basin. So far, storm total amounts are 0.16 inches
or less. The front, and the upper trough driving it, will move
onshore later this evening. Given a stacked system such as this,
this front will move through the area quickly. Therefore, the
associated precipitation will be brief and rain and snow amounts
will not have a significant impact. The bulk of the precipitation
will fall from the Cascades west and Siskiyous north.
Snow levels were well above 6000 feet Sunday afternoon, but will
drop sharply behind the front, down to around 2000 feet as the
bulk of the precipitation ends. Most areas will see only a
fraction of an inch of snow, but the higher elevations of the
Cascades may see up to 3 inches or so. Elevations as low as 1000
feet may see some flurries or a skiff of snow by daybreak Monday
morning.
A strong ridge will then build later tonight. Flow aloft will
become northwesterly. Showers will diminish, but some showers may
persist into Monday, mostly in the Umpqua Basin. With cold air
aloft, a wide range of precipitation types will be possible,
including rain, snow, sleet, and graupel. However, amounts should
be light, and warm ground temperatures will likely prevent
accumulations. All precipitation will end by late Monday
afternoon. Monday high temperatures inland will be around 20
degrees cooler than the Sunday highs were. Monday night will be
cold, with frost/freeze conditions possible along the coast by
early Tuesday morning.
Tuesday will be dry and inland high temperatures be about 10
degrees warmer than the Monday highs. A Chetco effect is expected
Tuesday into Tuesday night, so temperatures in the Brookings area
are likely to trend much warmer than normal as long as the
northeast winds persist there.
Long term discussion from the Sunday afternoon AFD...Wednesday 31
Mar through Sunday 04 Apr 2021. Models start in good agreement
with an upper ridge over the Pacific northwest and a thermal
trough deepened up to the Washington state coast. This brings east
winds across the east side, and a return of a good deal above
normal highs. This pattern remains into Thursday and finally
shifts Friday night when the ridge shifts east and an upper trough
brings the first weak front into the region. Models then begin to
diverge, but an unsettled pattern remains with periods of
precipitation remaining through much of next week. -Sven
&&
.AVIATION...For the 29/06Z TAF Cycle...Winds have gradually
diminished and are not expected to be a concern tonight. Tomorrow,
winds will increase at all terminals in the afternoon with the
strongest winds east of the Cascades, but they are not expected to
be as strong as they were Sunday afternoon and evening.
Regarding ceilings. VFR conditions will prevail through the TAF
period. However partial mountain obscuration is possible north of
the Umpqua Divide later this evening and tonight. -Petrucelli
&&
.MARINE...Updated 800 PM PDT Sunday 28 Mar 2021....A strong cold
front will move through the waters later this evening. The cold
front has moved through buoy 15 with gusty north winds while buoy 27
still has light south winds. Winds will abruptly shift northwest
there withing the next hour or two and increase. Steep northwest
seas of 9 to 11 feet, dominated by a 10 to 11 second period, will
build into the waters from north to south through tonight, and
persist into Monday. A thermal trough will set up Monday afternoon
and Tuesday with gusty north winds and steep to very steep seas
developing across the waters. Monday afternoon and night, gales will
affect areas south of Cape Sebastian and very steep seas are
expected south of Bandon. Tuesday, winds and seas will increase
further and gales will affect areas from Port Orford south with very
steep seas across most all the waters.
Winds and seas should begin to subside on Wednesday as the thermal
trough pattern becomes disrupted and weakens. -CC/Petrucelli
&&
.MFR WATCHES/WARNINGS/ADVISORIES...
OR...Wind Advisory until 3 AM PDT Monday for ORZ030-031.
CA...Wind Advisory until 3 AM PDT Monday for CAZ085.
Pacific Coastal Waters...Small Craft Advisory until 5 AM PDT
Tuesday for PZZ350-356-370.
Gale Warning from 2 PM Monday to 11 PM PDT Tuesday for
PZZ356-376.
Hazardous Seas Warning from 2 PM Monday to 11 PM PDT Tuesday for
PZZ350-356-370-376.
Small Craft Advisory until 2 PM PDT Monday for PZZ376.
15/15/10The office that day
Everything else NWS Medford, OR issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 28, 8:20 PM PDT | High Wind Warning | MFR | Lake | 7 hr |
| Mar 28, 10:30 PM PDT | Frost Advisory | MFR | Coos, Curry, Douglas | 35 hr |
| Mar 29, 2:59 AM PDT | Hazardous Seas Warning | MFR | 11 hr | |
| Mar 29, 1:29 PM PDT | Freeze Warning | MFR | Coos, Curry, Douglas, Jackson, Josephine | 20 hr |
| Mar 29, 2:43 PM PDT | Small Craft Advisory | MFR | 47 hr |
Nearby
Hazardous Seas Warnings in Oregon, 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.