Alert archive / Oregon / Hazardous Seas Warnings in 2021
Hazardous Seas Warning 10, NWS Medford, OR
NWS Medford, OR issued this hazardous seas warning at Jan 29, 2021, 8:35 AM PST. It took effect at Jan 30, 2021, 10:00 AM PST. It was in force for 34 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
- Jan 29, 2021, 8:35 AM PST (16:35 UTC)
- In effect from
- Jan 30, 2021, 10:00 AM PST
- Expired
- Jan 31, 2021, 8:00 PM PST
- In force
- 34 hr
- Issued by
- NWS Medford, OR
The text
As transmitted.
134 WHUS76 KMFR 291635 MWWMFR URGENT - MARINE WEATHER MESSAGE National Weather Service Medford OR 835 AM PST Fri Jan 29 2021 PZZ350-356-370-376-300600- /O.NEW.KMFR.SC.Y.0017.210130T0000Z-210130T0600Z/ /O.CON.KMFR.GL.W.0008.210130T0600Z-210130T1500Z/ /O.NEW.KMFR.SE.W.0010.210130T1500Z-210131T0600Z/ /O.EXT.KMFR.SC.Y.0016.210131T0600Z-210131T1800Z/ 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- Waters from Cape Blanco OR to Pt. St. George CA from 10 to 60 nm- 835 AM PST Fri Jan 29 2021 ...SMALL CRAFT ADVISORY IN EFFECT FROM 4 PM THIS AFTERNOON TO 10 PM PST THIS EVENING... ...GALE WARNING REMAINS IN EFFECT FROM 10 PM THIS EVENING TO 7 AM PST SATURDAY... ...HAZARDOUS SEAS WARNING IN EFFECT FROM 7 AM TO 10 PM PST SATURDAY... ...SMALL CRAFT ADVISORY NOW IN EFFECT FROM 10 PM SATURDAY TO 10 AM PST SUNDAY... * WHAT...For the Hazardous Seas Warning, very steep and hazardous seas 9 to 13 ft. For the Gale Warning, south winds 25 to 35 kt with gusts up to 45 kt and seas 9 to 11 ft. For the first Small Craft Advisory, south winds 20 to 30 kt with gusts up to 35 kt and seas around 9 ft at 10 seconds expected. For the second Small Craft Advisory, south winds 20 to 30 kt with gusts up to 40 kt and seas 11 to 14 ft expected. * WHERE...Advisory conditions this evening beyond 3 nm from shore, except also near shore near Cape Blanco and Gold Beach. Then, the hazards will be across all of the waters. * WHEN...For the Hazardous Seas Warning, from 7 AM to 10 PM PST Saturday. For the Gale Warning, from 10 PM this evening to 7 AM PST Saturday. For the first Small Craft Advisory, from 4 PM this afternoon to 10 PM PST this evening. For the second Small Craft Advisory, from 10 PM Saturday to 10 AM PST Sunday. * 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/mfr/HAZARD 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
10 follow-up statements
677 WHUS76 KMFR 292230 MWWMFR URGENT - MARINE WEATHER MESSAGE National Weather Service Medford OR 230 PM PST Fri Jan 29 2021 PZZ350-356-370-376-301200- /O.CON.KMFR.SC.Y.0017.210130T0000Z-210130T0600Z/ /O.CON.KMFR.GL.W.0008.210130T0600Z-210130T1500Z/ /O.EXT.KMFR.SE.W.0010.210130T1500Z-210131T1800Z/ /O.CAN.KMFR.SC.Y.0016.210131T0600Z-210131T1800Z/ 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- Waters from Cape Blanco OR to Pt. St. George CA from 10 to 60 nm- 230 PM PST Fri Jan 29 2021 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 10 PM PST THIS EVENING... ...GALE WARNING REMAINS IN EFFECT FROM 10 PM THIS EVENING TO 7 AM PST SATURDAY... ...HAZARDOUS SEAS WARNING NOW IN EFFECT FROM 7 AM SATURDAY TO 10 AM PST SUNDAY... ...SMALL CRAFT ADVISORY IS CANCELLED... * WHAT...For the Small Craft Advisory, south winds 20 to 30 kt with gusts up to 35 kt and seas around 9 ft at 10 seconds expected. For the Gale Warning, south winds 25 to 35 kt with gusts up to 45 kt and seas 10 to 12 ft expected. For the Hazardous Seas Warning, very steep and hazardous seas 12 to 15 ft expected. * WHERE...Advisory conditions this evening will affect all areas beyond 3 nm from shore, except near shore near Cape Blanco and Gold Beach. Gales and Hazardous Seas Warning conditions will affect all areas. * WHEN...For the Gale Warning, from 10 PM this evening to 7 AM PST Saturday. For the Hazardous Seas Warning, from 7 AM Saturday to 10 AM PST Sunday. * 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/mfr/HAZARD 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
385 WHUS76 KMFR 301028 MWWMFR URGENT - MARINE WEATHER MESSAGE National Weather Service Medford OR 228 AM PST Sat Jan 30 2021 PZZ350-356-370-376-302330- /O.CON.KMFR.GL.W.0008.000000T0000Z-210130T1500Z/ /O.CON.KMFR.SE.W.0010.210130T1500Z-210131T1800Z/ 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- Waters from Cape Blanco OR to Pt. St. George CA from 10 to 60 nm- 228 AM PST Sat Jan 30 2021 ...GALE WARNING REMAINS IN EFFECT UNTIL 7 AM PST THIS MORNING... ...HAZARDOUS SEAS WARNING REMAINS IN EFFECT FROM 7 AM THIS MORNING TO 10 AM PST SUNDAY... * WHAT...For the Gale Warning, southwest winds 20 to 30 kt with gusts up to 40 kt and seas 8 to 12 ft at 12 seconds. For the Hazardous Seas Warning, very steep and hazardous seas 10 to 15 ft at 16 seconds expected. * WHERE...All areas between Florence and Pt. St. George. * WHEN...For the Gale Warning, until 7 AM PST this morning. For the Hazardous Seas Warning, from 7 AM this morning to 10 AM PST Sunday. * 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/mfr/HAZARD 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. && $$ Visit us at https://www.weather.gov/Medford
660 WHUS76 KMFR 301455 MWWMFR URGENT - MARINE WEATHER MESSAGE National Weather Service Medford OR 655 AM PST Sat Jan 30 2021 PZZ350-356-370-376-310400- /O.EXT.KMFR.GL.W.0008.000000T0000Z-210130T1800Z/ /O.EXT.KMFR.SE.W.0010.210130T1800Z-210131T1800Z/ Coastal waters from Florence to Cape Blanco OR out 10 nm- Coastal waters from Cape Blanco OR to Pt. St. George CA out 10 nm- Waters from Florence to Cape Blanco OR from 10 to 60 nm- Waters from Cape Blanco OR to Pt. St. George CA from 10 to 60 nm- 655 AM PST Sat Jan 30 2021 ...GALE WARNING NOW IN EFFECT UNTIL 10 AM PST THIS MORNING... ...HAZARDOUS SEAS WARNING NOW IN EFFECT FROM 10 AM THIS MORNING TO 10 AM PST SUNDAY... * WHAT...For the Gale Warning, southwest winds 20 to 30 kt with gusts up to 40 kt and seas 8 to 12 ft at 12 seconds. For the Hazardous Seas Warning, very steep and hazardous seas 10 to 15 ft at 16 seconds expected. * WHERE...All areas between Florence and Pt. St. George. * WHEN...For the Gale Warning, until 10 AM PST this morning. For the Hazardous Seas Warning, from 10 AM this morning to 10 AM PST Sunday. * IMPACTS...Strong winds and very steep seas could capsize or damage vessels. Low visibility conditions are expected. * View the hazard area in detail at https://www.wrh.noaa.gov/mfr/HAZARD PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should alter plans to avoid strong winds and very steep seas. Remain in port, seek safe harbor, alter course, and/or secure the vessel for severe conditions. && $$ Visit us at https://www.weather.gov/Medford
168 WHUS76 KMFR 301726 MWWMFR URGENT - MARINE WEATHER MESSAGE National Weather Service Medford OR 926 AM PST Sat Jan 30 2021 PZZ370-376-310630- /O.EXT.KMFR.GL.W.0008.000000T0000Z-210131T1800Z/ /O.CON.KMFR.SE.W.0010.210130T1800Z-210131T1800Z/ /O.NEW.KMFR.SC.Y.0018.210131T1800Z-210202T0600Z/ Waters from Florence to Cape Blanco OR from 10 to 60 nm- Waters from Cape Blanco OR to Pt. St. George CA from 10 to 60 nm- 926 AM PST Sat Jan 30 2021 ...GALE WARNING NOW IN EFFECT UNTIL 10 AM PST SUNDAY... ...HAZARDOUS SEAS WARNING REMAINS IN EFFECT UNTIL 10 AM PST SUNDAY... ...SMALL CRAFT ADVISORY IN EFFECT FROM 10 AM SUNDAY TO 10 PM PST MONDAY... * WHAT...For the Gale Warning, south winds 25 to 35 kt with gusts up to 45 kt and seas 12 to 17 ft. For the Hazardous Seas Warning, south winds 20 to 30 kt with gusts to 40 kt and very steep and hazardous seas 10 to 16 ft at 9 seconds expected. For the Small Craft Advisory, south winds 20 to 30 kt with gusts up to 35 kt and seas 10 to 16 ft at 15 seconds expected. * WHERE...For the Gale Warning, south of Cape Arago from around 10 to 40 nm from shore. For the Hazardous Seas Warning, the remainder of the waters. For the Small Craft Advisory, all areas. * WHEN...For the Gale Warning and Hazardous Seas Warning, until 10 AM PST Sunday. For the Small Craft Advisory, from 10 AM Sunday to 10 PM PST Monday. * 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/mfr/HAZARD 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. && $$ PZZ350-356-310630- /O.CON.KMFR.GL.W.0008.000000T0000Z-210130T1800Z/ /O.CON.KMFR.SE.W.0010.210130T1800Z-210131T1800Z/ /O.NEW.KMFR.SC.Y.0018.210131T1800Z-210202T0600Z/ Coastal waters from Florence to Cape Blanco OR out 10 nm- Coastal waters from Cape Blanco OR to Pt. St. George CA out 10 nm- 926 AM PST Sat Jan 30 2021 ...GALE WARNING REMAINS IN EFFECT UNTIL 10 AM PST THIS MORNING... ...HAZARDOUS SEAS WARNING REMAINS IN EFFECT UNTIL 10 AM PST SUNDAY... ...SMALL CRAFT ADVISORY IN EFFECT FROM 10 AM SUNDAY TO 10 PM PST MONDAY... * WHAT...For the Gale Warning, south winds 25 to 35 kt with gusts up to 40 kt and seas 9 to 13 ft at 10 seconds. For the Hazardous Seas Warning, south winds 20 to 30 kt with gusts up to 35 kt and very steep and hazardous seas 10 to 15 ft at 9 seconds expected. For the Small Craft Advisory, south winds 20 to 30 kt with gusts up to 35 kt and seas 9 to 14 ft at 15 seconds expected. * WHERE...All areas. Strongest winds will be in the vicinity of Cape Blanco. * WHEN...For the Gale Warning, until 10 AM PST this morning. For the Hazardous Seas Warning, until 10 AM PST Sunday. For the Small Craft Advisory, from 10 AM Sunday to 10 PM PST Monday. * IMPACTS...Strong winds and very steep seas could capsize or damage vessels. Low visibility conditions are expected. * View the hazard area in detail at https://www.wrh.noaa.gov/mfr/HAZARD PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should alter plans to avoid strong winds and very steep seas. Remain in port, seek safe harbor, alter course, and/or secure the vessel for severe conditions. && $$ Visit us at https://www.weather.gov/Medford
350 WHUS76 KMFR 302218 MWWMFR URGENT - MARINE WEATHER MESSAGE National Weather Service Medford OR 218 PM PST Sat Jan 30 2021 PZZ350-356-311200- /O.NEW.KMFR.GL.W.0009.210130T2218Z-210131T2100Z/ /O.EXT.KMFR.SE.W.0010.000000T0000Z-210131T2100Z/ /O.EXT.KMFR.SC.Y.0018.210131T2100Z-210202T0600Z/ 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- 218 PM PST Sat Jan 30 2021 ...GALE WARNING IN EFFECT UNTIL 1 PM PST SUNDAY... ...HAZARDOUS SEAS WARNING NOW IN EFFECT UNTIL 1 PM PST SUNDAY... ...SMALL CRAFT ADVISORY NOW IN EFFECT FROM 1 PM SUNDAY TO 10 PM PST MONDAY... * WHAT...For the Gale Warning, south winds 25 to 35 kt with gusts up to 40 kt. For the Hazardous Seas Warning, very steep and hazardous seas 10 to 15 ft expected. For the Small Craft Advisory, south winds 20 to 30 kt with gusts up to 35 kt and steep seas 12 to 15 ft expected. * WHERE...Gales will affect areas beyond 5 nm from shore, except near the shore from Port Orford to Cape Blanco, elsewhere Hazardous seas are expected. Small craft will affect all areas. * WHEN...For the Gale and Hazardous Seas Warning, until 1 PM PST Sunday. For the Small Craft Advisory, from 1 PM Sunday to 10 PM PST Monday. * 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/mfr/HAZARD 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. && $$ PZZ370-376-311200- /O.EXT.KMFR.GL.W.0008.000000T0000Z-210131T2100Z/ /O.EXT.KMFR.SE.W.0010.000000T0000Z-210131T2100Z/ /O.EXT.KMFR.SC.Y.0018.210131T2100Z-210202T0600Z/ Waters from Florence to Cape Blanco OR from 10 to 60 nm- Waters from Cape Blanco OR to Pt. St. George CA from 10 to 60 nm- 218 PM PST Sat Jan 30 2021 ...GALE WARNING NOW IN EFFECT UNTIL 1 PM PST SUNDAY... ...HAZARDOUS SEAS WARNING NOW IN EFFECT UNTIL 1 PM PST SUNDAY... ...SMALL CRAFT ADVISORY NOW IN EFFECT FROM 1 PM SUNDAY TO 10 PM PST MONDAY... * WHAT...For the Gale Warning, south winds 25 to 35 kt with gusts up to 45 kt expected. For the Hazardous Seas Warning, very steep and hazardous seas 15 to 18 ft expected. For the Small Craft Advisory, south winds 20 to 30 kt with gusts up to 35 kt and seas 12 to 16 ft expected. * WHERE...For the Gale Warning, mainly between 10 to 40 nm from shore. For the Hazardous Seas Warning, the remainder of the waters. For the Small Craft Advisory, all areas. * WHEN...For the Gale and Hazardous Seas Warning, until 1 PM PST Sunday. For the Small Craft Advisory, from 1 PM Sunday to 10 PM PST Monday. * IMPACTS...Strong winds and very steep seas could capsize or damage vessels. Low visibility conditions are expected. * View the hazard area in detail at https://www.wrh.noaa.gov/mfr/HAZARD PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should alter plans to avoid strong winds and very steep seas. Remain in port, seek safe harbor, alter course, and/or secure the vessel for severe conditions. && $$ Visit us at https://www.weather.gov/Medford
101 WHUS76 KMFR 310448 MWWMFR URGENT - MARINE WEATHER MESSAGE National Weather Service Medford OR 848 PM PST Sat Jan 30 2021 PZZ350-356-311800- /O.EXT.KMFR.GL.W.0009.000000T0000Z-210201T0000Z/ /O.EXT.KMFR.SE.W.0010.000000T0000Z-210201T0900Z/ /O.EXT.KMFR.SC.Y.0018.210201T0900Z-210202T0600Z/ 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- 848 PM PST Sat Jan 30 2021 ...GALE WARNING NOW IN EFFECT UNTIL 4 PM PST SUNDAY... ...HAZARDOUS SEAS WARNING NOW IN EFFECT UNTIL 1 AM PST MONDAY... ...SMALL CRAFT ADVISORY NOW IN EFFECT FROM 1 AM TO 10 PM PST MONDAY... * WHAT...South winds 30 to 35 kt with gusts up to 40 kt and very steep and hazardous wind-driven seas of 13 to 16 ft are occuring. South winds become 25 to 30 kt Sunday evening, with conditions gradually improving Sunday night through Monday. * WHERE...Gales and very steep seas are expected for most areas, followed by small craft advisory conditions. * WHEN...South gales should diminish Sunday afternoon, but gusty winds and very steep and Hazardous Seas will continue through Sunday night, with gradual improvement through Monday. * 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/mfr/HAZARD 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. && $$ PZZ370-376-311800- /O.EXT.KMFR.GL.W.0008.000000T0000Z-210201T0000Z/ /O.EXT.KMFR.SE.W.0010.000000T0000Z-210201T0900Z/ /O.EXT.KMFR.SC.Y.0018.210201T0900Z-210202T0600Z/ Waters from Florence to Cape Blanco OR from 10 to 60 nm- Waters from Cape Blanco OR to Pt. St. George CA from 10 to 60 nm- 848 PM PST Sat Jan 30 2021 ...GALE WARNING NOW IN EFFECT UNTIL 4 PM PST SUNDAY... ...HAZARDOUS SEAS WARNING NOW IN EFFECT UNTIL 1 AM PST MONDAY... ...SMALL CRAFT ADVISORY NOW IN EFFECT FROM 1 AM TO 10 PM PST MONDAY... * WHAT...South winds 30 to 40 kt with gusts up to 45 kt and very steep and hazardous wind-driven seas of 15 to 20 ft are occuring. South winds become 25 to 30 kt Sunday evening, with conditions gradually improving Sunday night through Monday. * WHERE...Gales and very steep seas are expected for most areas, followed by small craft advisory conditions. * WHEN...South gales should diminish Sunday afternoon, but gusty winds and very steep and Hazardous Seas will continue through Sunday night, with gradual improvement through Monday. * IMPACTS...Strong winds and very steep seas could capsize or damage vessels. Low visibility conditions are expected. * View the hazard area in detail at https://www.wrh.noaa.gov/mfr/HAZARD PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should alter plans to avoid strong winds and very steep seas. Remain in port, seek safe harbor, alter course, and/or secure the vessel for severe conditions. && $$ Visit us at https://www.weather.gov/Medford
315 WHUS76 KMFR 310954 MWWMFR URGENT - MARINE WEATHER MESSAGE National Weather Service Medford OR 154 AM PST Sun Jan 31 2021 PZZ350-356-312300- /O.CON.KMFR.GL.W.0009.000000T0000Z-210201T0000Z/ /O.CON.KMFR.SE.W.0010.000000T0000Z-210201T0900Z/ /O.CON.KMFR.SC.Y.0018.210201T0900Z-210202T0600Z/ 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- 154 AM PST Sun Jan 31 2021 ...GALE WARNING REMAINS IN EFFECT UNTIL 4 PM PST THIS AFTERNOON... ...HAZARDOUS SEAS WARNING REMAINS IN EFFECT UNTIL 1 AM PST MONDAY... ...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 1 AM TO 10 PM PST MONDAY... * WHAT...South winds 30 to 35 kt with gusts up to 40 kt and very steep and hazardous wind-driven seas of 13 to 16 ft are occuring. South winds become 25 to 30 kt Sunday evening, with conditions gradually improving Sunday night through Monday. * WHERE...Gales and very steep seas are expected for most areas beyond 5 nm away from shore. All locations will observe small craft advisory conditions. * WHEN...For the Gale Warning, until 4 PM PST this afternoon. For the Hazardous Seas Warning, until 1 AM PST Monday. For the Small Craft Advisory, from 1 AM to 10 PM PST Monday. * 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/mfr/HAZARD 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. && $$ PZZ370-376-312300- /O.CON.KMFR.GL.W.0008.000000T0000Z-210201T0000Z/ /O.CON.KMFR.SE.W.0010.000000T0000Z-210201T0900Z/ /O.CON.KMFR.SC.Y.0018.210201T0900Z-210202T0600Z/ Waters from Florence to Cape Blanco OR from 10 to 60 nm- Waters from Cape Blanco OR to Pt. St. George CA from 10 to 60 nm- 154 AM PST Sun Jan 31 2021 ...GALE WARNING REMAINS IN EFFECT UNTIL 4 PM PST THIS AFTERNOON... ...HAZARDOUS SEAS WARNING REMAINS IN EFFECT UNTIL 1 AM PST MONDAY... ...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 1 AM TO 10 PM PST MONDAY... * WHAT...South winds 30 to 40 kt with gusts up to 45 kt and very steep and hazardous wind-driven seas of 15 to 20 ft are occuring. South winds become 25 to 30 kt Sunday evening, with conditions gradually improving Sunday night through Monday. * WHERE...All locations between Florence and Pt. St. George. * WHEN...For the Gale Warning, until 4 PM PST this afternoon. For the Hazardous Seas Warning, until 1 AM PST Monday. For the Small Craft Advisory, from 1 AM to 10 PM PST Monday. * IMPACTS...Strong winds and very steep seas could capsize or damage vessels. Low visibility conditions are expected. * View the hazard area in detail at https://www.wrh.noaa.gov/mfr/HAZARD PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should alter plans to avoid strong winds and very steep seas. Remain in port, seek safe harbor, alter course, and/or secure the vessel for severe conditions. && $$ Visit us at https://www.weather.gov/Medford
333 WHUS76 KMFR 311731 MWWMFR URGENT - MARINE WEATHER MESSAGE National Weather Service Medford OR 931 AM PST Sun Jan 31 2021 PZZ356-010645- /O.EXT.KMFR.GL.W.0009.000000T0000Z-210201T1900Z/ /O.EXT.KMFR.SE.W.0010.000000T0000Z-210201T1900Z/ /O.EXT.KMFR.SC.Y.0018.210201T1900Z-210202T1300Z/ Coastal waters from Cape Blanco OR to Pt. St. George CA out 10 nm- 931 AM PST Sun Jan 31 2021 ...GALE WARNING NOW IN EFFECT UNTIL 11 AM PST MONDAY... ...HAZARDOUS SEAS WARNING NOW IN EFFECT UNTIL 11 AM PST MONDAY... ...SMALL CRAFT ADVISORY NOW IN EFFECT FROM 11 AM MONDAY TO 5 AM PST TUESDAY... * WHAT...South winds 20 to 30 kt with gusts up to 40 kt and very steep and hazardous seas of 13 to 17 ft through Monday morning. Seas will be a combination of wind wave and a west swell at 15 seconds. Seas then become steep for Monday afternoon into early Tuesday with conditions gradually improving Monday afternoon into Wednesday. * WHERE...Gales are expected beyond 5 nm from shore and at capes with very steep seas all areas into Monday morning. Then, all areas will observe steep seas into early Tuesday morning. * WHEN...For the Gale Warning and Hazardous Seas Warning, until 11 AM PST Monday. For the Small Craft Advisory, from 11 AM Monday to 5 AM PST Tuesday. * 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/mfr/HAZARD 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. && $$ PZZ370-010645- /O.EXT.KMFR.GL.W.0008.000000T0000Z-210201T0900Z/ /O.EXT.KMFR.SE.W.0010.000000T0000Z-210201T1900Z/ /O.EXT.KMFR.SC.Y.0018.210201T1900Z-210202T1300Z/ Waters from Florence to Cape Blanco OR from 10 to 60 nm- 931 AM PST Sun Jan 31 2021 ...GALE WARNING NOW IN EFFECT UNTIL 1 AM PST MONDAY... ...HAZARDOUS SEAS WARNING NOW IN EFFECT UNTIL 11 AM PST MONDAY... ...SMALL CRAFT ADVISORY NOW IN EFFECT FROM 11 AM MONDAY TO 5 AM PST TUESDAY... * WHAT...South winds 25 to 35 kt with gusts up to 45 kt and very steep and hazardous seas of 13 to 18 ft with a combination of wind wave and a west swell at 15 seconds are expected through tonight with seas remaining very steep Monday morning. Conditions gradually improve Monday afternoon into Wednesday with seas remaining steep into early Tuesday morning. * WHERE...Gales from 10 to 40 nm from shore and very steep, hazardous seas in the outer portion through tonight. Then, very steep seas through Monday morning and steep seas Monday afternoon into early Tuesday morning for all of the area. * WHEN...For the Gale Warning, until 1 AM PST Monday. For the Hazardous Seas Warning, until 11 AM PST Monday. For the Small Craft Advisory, from 11 AM Monday to 5 AM PST Tuesday. * IMPACTS...Strong winds and very steep seas could capsize or damage vessels. Low visibility conditions are expected. * View the hazard area in detail at https://www.wrh.noaa.gov/mfr/HAZARD PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should alter plans to avoid strong winds and very steep seas. Remain in port, seek safe harbor, alter course, and/or secure the vessel for severe conditions. && $$ PZZ350-010645- /O.EXT.KMFR.GL.W.0009.000000T0000Z-210201T0900Z/ /O.EXT.KMFR.SE.W.0010.000000T0000Z-210201T1900Z/ /O.EXT.KMFR.SC.Y.0018.210201T1900Z-210202T1300Z/ Coastal waters from Florence to Cape Blanco OR out 10 nm- 931 AM PST Sun Jan 31 2021 ...GALE WARNING NOW IN EFFECT UNTIL 1 AM PST MONDAY... ...HAZARDOUS SEAS WARNING NOW IN EFFECT UNTIL 11 AM PST MONDAY... ...SMALL CRAFT ADVISORY NOW IN EFFECT FROM 11 AM MONDAY TO 5 AM PST TUESDAY... * WHAT...South winds 25 to 35 kt with gusts up to 45 kt and very steep and hazardous seas of 12 to 16 ft with a combination of wind wave and a west swell at 15 seconds are expected through tonight with seas remaining very steep Monday morning. Conditions gradually improve Monday afternoon into Wednesday with seas remaining steep into early Tuesday morning. * WHERE...Gales near Cape Blanco and beyond 5 nm from shore and very steep, hazardous seas in the inner portion through tonight. Then, very steep seas through Monday morning and steep seas Monday afternoon into early Tuesday morning for all of the area. * WHEN...For the Gale Warning, until 1 AM PST Monday. For the Hazardous Seas Warning, until 11 AM PST Monday. For the Small Craft Advisory, from 11 AM Monday to 5 AM PST Tuesday. * 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/mfr/HAZARD 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. && $$ PZZ376-010645- /O.EXT.KMFR.GL.W.0008.000000T0000Z-210201T1900Z/ /O.EXT.KMFR.SE.W.0010.000000T0000Z-210201T1900Z/ /O.EXT.KMFR.SC.Y.0018.210201T1900Z-210202T1300Z/ Waters from Cape Blanco OR to Pt. St. George CA from 10 to 60 nm- 931 AM PST Sun Jan 31 2021 ...GALE WARNING NOW IN EFFECT UNTIL 11 AM PST MONDAY... ...HAZARDOUS SEAS WARNING NOW IN EFFECT UNTIL 11 AM PST MONDAY... ...SMALL CRAFT ADVISORY NOW IN EFFECT FROM 11 AM MONDAY TO 5 AM PST TUESDAY... * WHAT...South winds 25 to 35 kt with gusts up to 45 kt and very steep and hazardous seas of 13 to 18 ft with a combination of wind wave and a west swell at 15 seconds are expected through Monday morning. Conditions gradually improve Monday afternoon into Wednesday with seas remaining steep into early Tuesday morning. * WHERE...Gales from 10 to 40 nm from shore and very steep, hazardous seas in the outer portion through Monday morning, then steep seas Monday afternoon into early Tuesday morning for all of the area. * WHEN...For the Gale Warning, until 11 AM PST Monday. For the Small Craft Advisory, from 11 AM Monday to 5 AM PST Tuesday. * IMPACTS...Strong winds and very steep seas could capsize or damage vessels. Low visibility conditions are expected. * View the hazard area in detail at https://www.wrh.noaa.gov/mfr/HAZARD PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should alter plans to avoid strong winds and very steep seas. Remain in port, seek safe harbor, alter course, and/or secure the vessel for severe conditions. && $$ Visit us at https://www.weather.gov/Medford
432 WHUS76 KMFR 312230 MWWMFR URGENT - MARINE WEATHER MESSAGE National Weather Service Medford OR 230 PM PST Sun Jan 31 2021 PZZ356-011130- /O.CAN.KMFR.GL.W.0009.000000T0000Z-210201T1900Z/ /O.EXT.KMFR.SE.W.0010.000000T0000Z-210202T0000Z/ /O.EXT.KMFR.SC.Y.0018.210131T2230Z-210202T1500Z/ Coastal waters from Cape Blanco OR to Pt. St. George CA out 10 nm- 230 PM PST Sun Jan 31 2021 ...HAZARDOUS SEAS WARNING NOW IN EFFECT UNTIL 4 PM PST MONDAY... ...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 7 AM PST TUESDAY... ...GALE WARNING IS CANCELLED... * WHAT...South winds 20 to 30 kt with gusts up to 40 kt and steep to very steep and hazardous seas of 12 to 16 ft until late Monday afternoon. South to southwest winds 10 to 20 kt with steep seas 10 to 12 feet late Monday afternoon through Tuesday morning. * WHERE AND WHEN...Very steep hazardous seas and Advisory level winds over the whole area except 5 to 10 nm offshore south of Gold Beach through 4 PM PST Monday. Steep seas and Advisory level winds over the remainder of the area through 4 PM PST Monday, then steep seas over the entire area until 7 AM PST Tuesday. * 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/mfr/HAZARD 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. && $$ PZZ370-011130- /O.CAN.KMFR.GL.W.0008.000000T0000Z-210201T0900Z/ /O.EXT.KMFR.SE.W.0010.000000T0000Z-210202T0000Z/ /O.EXT.KMFR.SC.Y.0018.210131T2230Z-210202T1500Z/ Waters from Florence to Cape Blanco OR from 10 to 60 nm- 230 PM PST Sun Jan 31 2021 ...HAZARDOUS SEAS WARNING NOW IN EFFECT UNTIL 4 PM PST MONDAY... ...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 7 AM PST TUESDAY... ...GALE WARNING IS CANCELLED... * WHAT...South winds 20 to 30 kt with gusts up to 40 kt and steep to very steep and hazardous seas of 14 to 17 ft until late Monday afternoon. Southwest winds 10 to 20 kt with steep seas 10 to 12 feet late Monday afternoon until early Tuesday morning. * WHERE AND WHEN...Very steep hazardous seas and Advisory level winds 10 nm to 50 nm offshore through 4 PM PST Monday. Steep seas and Advisory level winds over the remainder of the area through 4 PM PST Monday, then steep seas over the entire area until 7 AM PST Tuesday. * IMPACTS...Strong winds and very steep seas could capsize or damage vessels. Low visibility conditions are expected. * View the hazard area in detail at https://www.wrh.noaa.gov/mfr/HAZARD PRECAUTIONARY/PREPAREDNESS ACTIONS... Recreational boaters should remain in port. Commercial vessels should prepare for very steep seas and consider remaining in port until conditions improve. && $$ PZZ350-011130- /O.CAN.KMFR.GL.W.0009.000000T0000Z-210201T0900Z/ /O.EXT.KMFR.SE.W.0010.000000T0000Z-210202T0000Z/ /O.EXT.KMFR.SC.Y.0018.210131T2230Z-210202T1500Z/ Coastal waters from Florence to Cape Blanco OR out 10 nm- 230 PM PST Sun Jan 31 2021 ...HAZARDOUS SEAS WARNING NOW IN EFFECT UNTIL 4 PM PST MONDAY... ...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 7 AM PST TUESDAY... ...GALE WARNING IS CANCELLED... * WHAT...South winds 20 to 30 kt with gusts up to 40 kt and steep to very steep and hazardous seas of 12 to 16 ft until late Monday afternoon. Southwest winds 10 to 20 kt with steep seas 9 to 11 feet late Monday afternoon until early Tuesday morning. * WHERE AND WHEN...Very steep hazardous seas and Advisory level winds beyond 5 nm offshore through 4 PM PST Monday. Steep seas and Advisory level winds over the remainder of the area through 4 PM PST Monday, then steep seas over the entire area until 7 AM PST Tuesday. * 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/mfr/HAZARD 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. && $$ PZZ376-011130- /O.EXT.KMFR.GL.W.0008.000000T0000Z-210202T0000Z/ /O.EXT.KMFR.SE.W.0010.000000T0000Z-210202T0000Z/ /O.EXT.KMFR.SC.Y.0018.210131T2230Z-210202T1500Z/ Waters from Cape Blanco OR to Pt. St. George CA from 10 to 60 nm- 230 PM PST Sun Jan 31 2021 ...GALE WARNING NOW IN EFFECT UNTIL 4 PM PST MONDAY... ...HAZARDOUS SEAS WARNING NOW IN EFFECT UNTIL 4 PM PST MONDAY... ...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 7 AM PST TUESDAY... * WHAT...South winds 25 to 35 kt with gusts up to 45 kt and very steep and hazardous seas of 13 to 17 ft until late Monday afternoon. Southwest winds 10 to 20 kt with steep seas 10 to 12 feet late Monday afternoon until early Tuesday morning. * WHERE AND WHEN...Gales south of Port Orford from 10 to 40 nm offshore through 4 PM PST Monday. Very steep hazardous seas and Advisory level winds from 10 to 50 nm offshore through 4 PM PST Monday. Steep seas over the remainder of the area through 4 PM PST Monday, then steep seas over the entire area until 7 AM PST Tuesday. * IMPACTS...Strong winds and very steep seas could capsize or damage vessels. Low visibility conditions are expected. * View the hazard area in detail at https://www.wrh.noaa.gov/mfr/HAZARD PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should alter plans to avoid strong winds and very steep seas. Remain in port, seek safe harbor, alter course, and/or secure the vessel for severe conditions. && $$ Visit us at https://www.weather.gov/Medford
931 WHUS76 KMFR 010400 MWWMFR URGENT - MARINE WEATHER MESSAGE National Weather Service Medford OR 800 PM PST Sun Jan 31 2021 PZZ370-011700- /O.CAN.KMFR.SE.W.0010.000000T0000Z-210202T0000Z/ /O.NEW.KMFR.SC.Y.0019.210201T2100Z-210202T1500Z/ /O.UPG.KMFR.SC.Y.0018.000000T0000Z-210202T1500Z/ /O.NEW.KMFR.SE.W.0011.210201T1200Z-210201T2100Z/ /O.EXB.KMFR.GL.W.0008.000000T0000Z-210201T1200Z/ Waters from Florence to Cape Blanco OR from 10 to 60 nm- 800 PM PST Sun Jan 31 2021 ...GALE WARNING IN EFFECT UNTIL 4 AM PST MONDAY... ...HAZARDOUS SEAS WARNING IN EFFECT FROM 4 AM TO 1 PM PST MONDAY... ...SMALL CRAFT ADVISORY IN EFFECT FROM 1 PM MONDAY TO 7 AM PST TUESDAY... * WHAT...South winds 30 to 35 kt with gusts up to 40 kt this evening, diminishing overnight. Very steep wind driven seas of 15 to 18 feet tonight, becoming west 10 to 12 feet at 13 seconds by Monday afternoon. * WHERE...All areas. * WHEN...Gales will peak this evening, then diminish overnight. Very steep seas will continue through tonight, then gradually diminish through Monday. * 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/mfr/HAZARD 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. && $$ PZZ376-011700- /O.CAN.KMFR.SE.W.0010.000000T0000Z-210202T0000Z/ /O.NEW.KMFR.SC.Y.0019.210201T2100Z-210202T1500Z/ /O.UPG.KMFR.SC.Y.0018.000000T0000Z-210202T1500Z/ /O.NEW.KMFR.SE.W.0011.210201T1200Z-210201T2100Z/ /O.EXT.KMFR.GL.W.0008.000000T0000Z-210201T1200Z/ Waters from Cape Blanco OR to Pt. St. George CA from 10 to 60 nm- 800 PM PST Sun Jan 31 2021 ...GALE WARNING NOW IN EFFECT UNTIL 4 AM PST MONDAY... ...HAZARDOUS SEAS WARNING IN EFFECT FROM 4 AM TO 1 PM PST MONDAY... ...SMALL CRAFT ADVISORY IN EFFECT FROM 1 PM MONDAY TO 7 AM PST TUESDAY... * WHAT...South winds 30 to 35 kt with gusts up to 40 kt this evening, diminishing overnight. Very steep wind driven seas of 15 to 18 feet tonight, becoming west 10 to 12 feet at 13 seconds by Monday afternoon. * WHERE...All areas. * WHEN...Gales will peak this evening, then diminish overnight. Very steep seas will continue through tonight, then gradually diminish through Monday. * IMPACTS...Strong winds and very steep seas could capsize or damage vessels. Low visibility conditions are expected. * View the hazard area in detail at https://www.wrh.noaa.gov/mfr/HAZARD PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should alter plans to avoid strong winds and very steep seas. Remain in port, seek safe harbor, alter course, and/or secure the vessel for severe conditions. && $$ PZZ350-356-011700- /O.CAN.KMFR.SE.W.0010.000000T0000Z-210202T0000Z/ /O.NEW.KMFR.GL.W.0010.210201T0400Z-210201T1200Z/ /O.CON.KMFR.SC.Y.0018.000000T0000Z-210202T1500Z/ /O.NEW.KMFR.SE.W.0011.210201T1200Z-210201T2100Z/ 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- 800 PM PST Sun Jan 31 2021 ...GALE WARNING IN EFFECT UNTIL 4 AM PST MONDAY... ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 7 AM PST TUESDAY... ...HAZARDOUS SEAS WARNING IN EFFECT FROM 4 AM TO 1 PM PST MONDAY... * WHAT...South winds 30 to 35 kt with gusts up to 40 kt this evening, diminishing overnight. Very steep wind driven seas of 12 to 15 feet tonight, becoming west 10 to 11 feet at 13 seconds by Monday afternoon. * WHERE...Gales and very steep and hazardous seas are expected for all waters beyond 2 nm from shore and near capes and headlands. All other areas can expect small craft advisory conditions. * WHEN...Gales will peak this evening, then diminish overnight. Very steep seas will continue through tonight, then gradually diminish through Monday. * 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/mfr/HAZARD 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
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 Jan 29, 5:53 AM PST, 2 hours 42 minutes earlier.
Area forecast discussion, Jan 29, 5:53 AM PST, 2 hours 42 minutes before
Area Forecast Discussion
National Weather Service Medford OR
553 AM PST Fri Jan 29 2021
Updated Aviation Discussion
.SHORT TERM...Behind a front, a isolated or scattered light snow
showers and flurries are expected this morning over southern
Siskiyou, Modoc and southeast Lake Counties. Otherwise, expect low
clouds are areas of patchy valley fog this morning across the
area.
A relatively weak front will approach the coast this afternoon
and move onshore tonight. This front will stall and remain along
the coast Saturday and will likely only bring light precipitation
to the area. The best chances for precipitation are forecast along
the coast and coastal mountains, southwest Josephine, Douglas and
western and southern Siskiyou Counties as well as into the
Southern Oregon Cascades. Models indicate mainly light
precipitation with snow levels initially around 2500 to 3500 feet,
lowering to 1500 to 2500 feet late tonight and early Saturday
morning, then rising to 3500 to 4500 feet Saturday afternoon.
However, any snow accumulations are expected to be light and the
best chance for accumulations are in the Mount Shasta area,
Southern Oregon Cascades and Kalmiopsis Wilderness areas. Around
1 to 3 inches of snow is forecast in the Mount Shasta City area
with 1 to 2 inches of snow in the Southern Oregon Cascades tonight
into Saturday morning.
A second, stronger front will approach from the west Saturday
afternoon into Saturday night, gradually moving onshore Sunday.
As this front nears the coast, models and ensembles indicate a
strengthening low level jet along the coast and an increasing mid
level jet across the area. 700 mb winds are forecast to increase
to 50 to 70 kt across the area by Saturday night. Meanwhile the
pressure gradient will increase at the surface with a 7 to 8 mb
gradient developing between Medford and Redding. As a result,
expect increased winds Saturday afternoon into Saturday night,
with some strong gusty winds developing along the coast, over the
mountains and into the Shasta Valley. At the coast, expect the
strong winds to be mainly limited to headlands. However, in the
Shasta Valley, models and guidance support gusts of 60 mph
developing Saturday evening through early Sunday morning. So have
issued a high wind watch (NPWMFR) for the southern Shasta Valley.
Winds may combine with blowing snow to result in reduced
visibilities at times, especially for areas near and south of the
Weed Saturday and into Sunday morning. Precipitation will spread
across most areas from the Cascades west Saturday evening into
Sunday morning as the front moves onshore. Precipitation may be
limited though in the northern/central Shasta Valley and southern
Rogue Valley due to gusty, downslope winds.
This front will be slow to move inland due to a strengthening
ridge inland to the east and a deepening trough off the coast.
Models indicate the front will gradually move inland Sunday
afternoon through Monday. Moderate to strong southwest winds
aloft, combined with significant moisture and a slow inland
progression are expected to result in the potential for moderate
to heavy precipitation over the area, especially from the
Cascades west and into much of Siskiyou County. Snow levels are
forecast to be around 4500 to 5500 feet across much of the area
Sunday afternoon through Monday as precipitation peaks. However
snow levels may be lower, down to around 3000 to 3500 feet, in
the Mount Shasta area due to terrain effects with the south winds.
This will bring a risk for a round of heavy snow into the Mount
Shasta area, including the Interstate 5 corridor from Weed south
to near Dunsmuir. The details on how low snow levels will be
during the period are the main concern for how much snow the Mount
Shasta area will receive. Elsewhere, expect the potential for
heavy snow into the Southern Oregon Cascades, the Siskiyous and
the mountains in western Siskiyou, especially above 4500 feet
elevation. As winds aloft increase out of the south and southwest,
strong winds are possible into the Shasta Valley, over the
mountains and possibly for areas east of the Cascades, such as
the Summer Lake area late Sunday into Monday.
Snow levels lower Monday night into Tuesday, down to around 2500
feet or locally lower, as the upper level trough moves inland
bringing and cold and showery air mass to the region.
&&
.AVIATION...For the 29/12Z TAFs...Low ceilings persist over the
forecast area this morning. Eventually, the MVFR and IFR ceilings
will burn off later today and give way to VFR ceilings. Look for
more rain later tonight as a strong front moves in by the evening
hours. The front moving in this evening will bring a mix of MVFR
and IFR ceilings across the TAF sites. In addition, many of the
mountains will become obscurred when this front moves though.
-Smith
&&
.MARINE...Updated 330 AM PST Friday 29 Jan 2021...Seas will remain
low for most of the morning hours. Another cold front is expected
to swing through the waters later this evening and into tonight.
Winds will increase and barely reach gale force over most of the
waters. Winds will lower slightly into the later portions of the
overnight hours as the front weakens and stalls a bit. Seas will
remain high, steep and hazardous to smaller crafts for most of
Saturday.
-Smith
&&
.PREV LONG TERM DISCUSSION... /Issued 252 PM PST Thu Jan 28 2021/
LONG TERM...Sun 31 Jan through Thu 04 Feb 2021.
The current fast progressive pattern will slow down Saturday as a
long wave ridge amplifies over the intermountain states and the
upstream trough deepens offshore between 130W and 140W.
This evolution will slow the progress of the next front, which will
move onshore late Saturday night into Sunday morning. It will stall
over the west side, bringing an extended period of precipitation to
the west side, especially in the "wet crescent" extending from the
Coast Range in the Kalmiopsis wilderness area southeast to western
Siskiyou county. Snow levels will start off in the 3500 to 4500 feet
range, rising to 4500 to 5500 feet Sunday evening.
Snow levels Saturday through Monday will be critical around Mount
Shasta, as the snow levels will be near the elevation of Mount
Shasta City and the surrounding area, including Interstate 5. This
has the potential to be another major snowstorm for that area. The
time of the greatest threat for that area looks to be Sunday night
into Monday.
Winds will be strong at times over the Shasta Valley and east of the
Cascades. Winds will likely peak in the Shasta Valley sometime
Sunday and east of the Cascades Sunday night into Monday morning.
With all the precipitation and some snow melt due to slightly
higher snow levels, expect rises on area creeks, streams and
rivers with some basins approaching action stage early to mid next
week.
The progression will pick up speed Monday, and the trough will
eventually move onshore Tuesday morning, but it will weaken quite a
bit in the process. The stalled front will weaken Monday night into
Tuesday, and precipitation will become lighter at that time. Snow
levels will drop down to around 2500 feet Tuesday morning.
A strong ridge will move in behind the trough, bringing in strong
north flow aloft. At low levels, the air mass will dry out and a
east flow event will commence. It will also get colder, especially
east of the Cascades. There may be low clouds and fog trapped in the
valleys, but the rest of the areas will clear out with gusty winds
over the ridges. This ridge will continue to build into the area
through Thursday afternoon, and will remain in place offshore into
the weekend. -JRS
&&
.MFR WATCHES/WARNINGS/ADVISORIES...
OR...None.
CA...High Wind Watch from Saturday afternoon through Sunday morning
for CAZ081.
Pacific Coastal Waters...Small Craft Advisory from 7 AM Saturday to 10 AM PST Sunday for
PZZ350-356-370-376.
Gale Warning from 10 PM this evening to 7 AM PST Saturday for
PZZ350-356-370-376.
CCThe office that day
Everything else NWS Medford, OR issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jan 29, 2:16 AM PST | Gale Warning | MFR | 3 days | |
| Jan 29, 2:16 AM PST | Small Craft Advisory | MFR | 12 hr | |
| Jan 29, 2:43 AM PST | High Wind Watch | MFR | Coos, Curry, Douglas, Josephine | 37 hr |
| Jan 29, 8:35 AM PST | Small Craft Advisory | MFR | 13 hr | |
| Jan 29, 2:13 PM PST | High Wind Watch | MFR | Klamath, Lake | 49 hr |
| Jan 29, 2:13 PM PST | Wind Advisory | MFR | Jackson, Klamath, Lake | 3 days |
| Jan 29, 3:11 PM PST | Winter Weather Advisory | MFR | Curry, Jackson, Josephine, Klamath | 49 hr |
| Jan 29, 3:11 PM PST | Winter Storm Watch | MFR | Siskiyou | 48 hr |
| Jan 29, 3:11 PM PST | Winter Storm Warning | MFR | Siskiyou | 48 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.