Alert archive / Michigan / Small Craft Advisories in 2021
Small Craft Advisory 7, NWS Detroit, MI
NWS Detroit, MI issued this small craft advisory at Jan 30, 2021, 3:28 AM EST. It took effect at Jan 31, 2021, 4:00 AM EST. It was in force for 4 days.
The area
The counties it named.
The facts
- Issued
- Jan 30, 2021, 3:28 AM EST (08:28 UTC)
- In effect from
- Jan 31, 2021, 4:00 AM EST
- Expired
- Feb 3, 2021, 4:00 PM EST
- In force
- 4 days
- Issued by
- NWS Detroit, MI
The text
As transmitted.
465 WHUS73 KDTX 300828 MWWDTX URGENT - MARINE WEATHER MESSAGE National Weather Service Detroit/Pontiac MI 328 AM EST Sat Jan 30 2021 LHZ421-441>443-302115- /O.NEW.KDTX.SC.Y.0007.210131T0900Z-210201T0900Z/ Outer Saginaw Bay SW of Alabaster to Port Austin MI to Inner Saginaw Bay-Port Austin to Harbor Beach MI- Harbor Beach to Port Sanilac MI-Port Sanilac to Port Huron MI- 328 AM EST Sat Jan 30 2021 ...SMALL CRAFT ADVISORY IN EFFECT FROM 4 AM SUNDAY TO 4 AM EST MONDAY... * WHAT...Expect sustained winds up to 19 knots from the east with gusts up to 24 knots. The largest significant waves will be 6 feet with a potential maximum wave height of 8 feet. * WHERE...Outer Saginaw Bay SW of Alabaster to Port Austin MI to Inner Saginaw Bay, Port Austin to Harbor Beach MI, Harbor Beach to Port Sanilac MI and Port Sanilac to Port Huron MI. * WHEN...The maximum winds are expected around 7 PM EST Sunday with the largest waves expected around 10 PM EST Sunday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$
11 follow-up statements
858 WHUS73 KDTX 302059 MWWDTX URGENT - MARINE WEATHER MESSAGE National Weather Service Detroit/Pontiac MI 359 PM EST Sat Jan 30 2021 LEZ444-311000- /O.EXB.KDTX.SC.Y.0007.210131T0900Z-210201T1500Z/ Michigan Waters of Lake Erie from Detroit River to North Cape MI- 359 PM EST Sat Jan 30 2021 ...SMALL CRAFT ADVISORY IN EFFECT FROM 4 AM SUNDAY TO 10 AM EST MONDAY... * WHAT...Expect sustained winds up to 20 knots from the northeast with gusts up to 28 knots. The largest significant waves will be 5 feet with a potential maximum wave height of 7 feet. * WHERE...Michigan Waters of Lake Erie from Detroit River to North Cape MI. * WHEN...The maximum winds are expected around 1 PM EST Sunday with the largest waves expected around 11 AM EST Sunday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ LHZ421-441>443-311000- /O.EXT.KDTX.SC.Y.0007.210131T0900Z-210201T1500Z/ Outer Saginaw Bay SW of Alabaster to Port Austin MI to Inner Saginaw Bay-Port Austin to Harbor Beach MI- Harbor Beach to Port Sanilac MI-Port Sanilac to Port Huron MI- 359 PM EST Sat Jan 30 2021 ...SMALL CRAFT ADVISORY NOW IN EFFECT FROM 4 AM SUNDAY TO 10 AM EST MONDAY... * WHAT...Expect sustained winds up to 19 knots from the east with gusts up to 24 knots. The largest significant waves will be 6 feet with a potential maximum wave height of 8 feet. * WHERE...Outer Saginaw Bay SW of Alabaster to Port Austin MI to Inner Saginaw Bay, Port Austin to Harbor Beach MI, Harbor Beach to Port Sanilac MI and Port Sanilac to Port Huron MI. * WHEN...The maximum winds are expected around 7 PM EST Sunday with the largest waves expected around 10 PM EST Sunday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$
943 WHUS73 KDTX 310927 MWWDTX URGENT - MARINE WEATHER MESSAGE National Weather Service Detroit/Pontiac MI 427 AM EST Sun Jan 31 2021 LHZ421-441>443-312145- /O.EXT.KDTX.SC.Y.0007.000000T0000Z-210202T0900Z/ Outer Saginaw Bay SW of Alabaster to Port Austin MI to Inner Saginaw Bay-Port Austin to Harbor Beach MI- Harbor Beach to Port Sanilac MI-Port Sanilac to Port Huron MI- 427 AM EST Sun Jan 31 2021 ...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 4 AM EST TUESDAY... * WHAT...Expect sustained winds up to 20 knots from the east with gusts up to 25 knots. The largest significant waves will be 6 feet with a potential maximum wave height of 8 feet. * WHERE...Outer Saginaw Bay SW of Alabaster to Port Austin MI to Inner Saginaw Bay, Port Austin to Harbor Beach MI, Harbor Beach to Port Sanilac MI and Port Sanilac to Port Huron MI. * WHEN...The maximum winds are expected around 7 PM EST Sunday with the largest waves expected around 9 PM EST Sunday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ LEZ444-312145- /O.EXT.KDTX.SC.Y.0007.000000T0000Z-210201T0900Z/ Michigan Waters of Lake Erie from Detroit River to North Cape MI- 427 AM EST Sun Jan 31 2021 ...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 4 AM EST MONDAY... * WHAT...Expect sustained winds up to 20 knots from the northeast with gusts up to 28 knots. The largest significant waves will be 5 feet with a potential maximum wave height of 7 feet in ice free areas. * WHERE...Michigan Waters of Lake Erie from Detroit River to North Cape MI. * WHEN...The maximum winds are expected around 1 PM EST Sunday with the largest waves expected around 3 PM EST Sunday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$
064 WHUS73 KDTX 312100 MWWDTX URGENT - MARINE WEATHER MESSAGE National Weather Service Detroit/Pontiac MI 400 PM EST Sun Jan 31 2021 LHZ421-441>443-011000- /O.EXT.KDTX.SC.Y.0007.000000T0000Z-210203T1500Z/ Outer Saginaw Bay SW of Alabaster to Port Austin MI to Inner Saginaw Bay-Port Austin to Harbor Beach MI- Harbor Beach to Port Sanilac MI-Port Sanilac to Port Huron MI- 400 PM EST Sun Jan 31 2021 ...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 10 AM EST WEDNESDAY... * WHAT...Expect sustained winds up to 20 knots from the north with gusts up to 27 knots. The largest significant waves will be 6 feet with a potential maximum wave height of 8 feet. * WHERE...Outer Saginaw Bay SW of Alabaster to Port Austin MI to Inner Saginaw Bay, Port Austin to Harbor Beach MI, Harbor Beach to Port Sanilac MI and Port Sanilac to Port Huron MI. * WHEN...The maximum winds are expected around 7 PM EST Sunday with the largest waves expected around 9 PM EST Tuesday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ LEZ444-010900- /O.CON.KDTX.SC.Y.0007.000000T0000Z-210201T0900Z/ Michigan Waters of Lake Erie from Detroit River to North Cape MI- 400 PM EST Sun Jan 31 2021 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 4 AM EST MONDAY... * WHAT...Expect sustained winds up to 20 knots from the northeast with gusts up to 27 knots. The largest significant waves will be 2 feet with a potential maximum wave height of 3 feet. * WHERE...Michigan Waters of Lake Erie from Detroit River to North Cape MI. * WHEN...The maximum winds are expected around 6 PM EST Sunday with the largest waves expected around 6 PM EST Sunday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$
802 WHUS73 KDTX 010910 MWWDTX URGENT - MARINE WEATHER MESSAGE National Weather Service Detroit/Pontiac MI 410 AM EST Mon Feb 1 2021 LEZ444-011015- /O.EXP.KDTX.SC.Y.0007.000000T0000Z-210201T0900Z/ Michigan Waters of Lake Erie from Detroit River to North Cape MI- 410 AM EST Mon Feb 1 2021 ...SMALL CRAFT ADVISORY HAS EXPIRED... Gusty wind across western Lake Erie shifted more toward the northeast during the early morning allowing waves to subside in the Michigan waters. $$ LHZ421-441>443-012130- /O.CON.KDTX.SC.Y.0007.000000T0000Z-210203T1500Z/ Outer Saginaw Bay SW of Alabaster to Port Austin MI to Inner Saginaw Bay-Port Austin to Harbor Beach MI- Harbor Beach to Port Sanilac MI-Port Sanilac to Port Huron MI- 410 AM EST Mon Feb 1 2021 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 10 AM EST WEDNESDAY... * WHAT...Expect sustained winds up to 20 knots from the north with gusts up to 27 knots. The largest significant waves will be 6 feet with a potential maximum wave height of 10 feet. * WHERE...Outer Saginaw Bay SW of Alabaster to Port Austin MI to Inner Saginaw Bay, Port Austin to Harbor Beach MI, Harbor Beach to Port Sanilac MI and Port Sanilac to Port Huron MI. * WHEN...The maximum winds are expected around 7 PM EST Tuesday with the largest waves expected around 9 PM EST Tuesday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$
659 WHUS73 KDTX 011453 MWWDTX URGENT - MARINE WEATHER MESSAGE National Weather Service Detroit/Pontiac MI 953 AM EST Mon Feb 1 2021 LHZ421-441>443-020915- /O.CON.KDTX.SC.Y.0007.000000T0000Z-210203T1500Z/ Outer Saginaw Bay SW of Alabaster to Port Austin MI to Inner Saginaw Bay-Port Austin to Harbor Beach MI- Harbor Beach to Port Sanilac MI-Port Sanilac to Port Huron MI- 953 AM EST Mon Feb 1 2021 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 10 AM EST WEDNESDAY... * WHAT...Expect sustained winds up to 20 knots from the north with gusts up to 29 knots. The largest significant waves will be 5 feet with a potential maximum wave height of 7 feet. * WHERE...Outer Saginaw Bay SW of Alabaster to Port Austin MI to Inner Saginaw Bay, Port Austin to Harbor Beach MI, Harbor Beach to Port Sanilac MI and Port Sanilac to Port Huron MI. * WHEN...The maximum winds are expected around 9 AM EST Monday with the largest waves expected around 9 PM EST Tuesday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$
730 WHUS73 KDTX 020245 MWWDTX URGENT - MARINE WEATHER MESSAGE National Weather Service Detroit/Pontiac MI 945 PM EST Mon Feb 1 2021 LHZ421-441>443-022115- /O.CON.KDTX.SC.Y.0007.000000T0000Z-210203T1500Z/ Outer Saginaw Bay SW of Alabaster to Port Austin MI to Inner Saginaw Bay-Port Austin to Harbor Beach MI- Harbor Beach to Port Sanilac MI-Port Sanilac to Port Huron MI- 945 PM EST Mon Feb 1 2021 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 10 AM EST WEDNESDAY... * WHAT...Expect sustained winds up to 19 knots from the north with gusts up to 26 knots. The largest significant waves will be 6 feet with a potential maximum wave height of 8 feet. * WHERE...Outer Saginaw Bay SW of Alabaster to Port Austin MI to Inner Saginaw Bay, Port Austin to Harbor Beach MI, Harbor Beach to Port Sanilac MI and Port Sanilac to Port Huron MI. * WHEN...The maximum winds are expected around 7 PM EST Tuesday with the largest waves expected around 8 PM EST Tuesday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$
800 WHUS73 KDTX 020913 MWWDTX URGENT - MARINE WEATHER MESSAGE National Weather Service Detroit/Pontiac MI 413 AM EST Tue Feb 2 2021 LHZ421-441>443-022130- /O.EXT.KDTX.SC.Y.0007.000000T0000Z-210203T2100Z/ Outer Saginaw Bay SW of Alabaster to Port Austin MI to Inner Saginaw Bay-Port Austin to Harbor Beach MI- Harbor Beach to Port Sanilac MI-Port Sanilac to Port Huron MI- 413 AM EST Tue Feb 2 2021 ...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 4 PM EST WEDNESDAY... * WHAT...Expect sustained winds up to 20 knots from the north with gusts up to 27 knots. The largest significant waves will be 6 feet with a potential maximum wave height of 10 feet. * WHERE...Outer Saginaw Bay SW of Alabaster to Port Austin MI to Inner Saginaw Bay, Port Austin to Harbor Beach MI, Harbor Beach to Port Sanilac MI and Port Sanilac to Port Huron MI. * WHEN...The maximum winds are expected around 6 PM EST Tuesday with the largest waves expected around 8 PM EST Tuesday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$
321 WHUS73 KDTX 022034 MWWDTX URGENT - MARINE WEATHER MESSAGE National Weather Service Detroit/Pontiac MI 334 PM EST Tue Feb 2 2021 LHZ421-441>443-032100- /O.CON.KDTX.SC.Y.0007.000000T0000Z-210203T2100Z/ Outer Saginaw Bay SW of Alabaster to Port Austin MI to Inner Saginaw Bay-Port Austin to Harbor Beach MI- Harbor Beach to Port Sanilac MI-Port Sanilac to Port Huron MI- 334 PM EST Tue Feb 2 2021 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 4 PM EST WEDNESDAY... * WHAT...Expect sustained winds up to 23 knots from the north with gusts up to 31 knots. The largest significant waves will be 6 feet with a potential maximum wave height of 8 feet. * WHERE...Outer Saginaw Bay SW of Alabaster to Port Austin MI to Inner Saginaw Bay, Port Austin to Harbor Beach MI, Harbor Beach to Port Sanilac MI and Port Sanilac to Port Huron MI. * WHEN...The maximum winds are expected around 4 PM EST Tuesday with the largest waves expected around 8 PM EST Tuesday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$
970 WHUS73 KDTX 030902 MWWDTX URGENT - MARINE WEATHER MESSAGE National Weather Service Detroit/Pontiac MI 402 AM EST Wed Feb 3 2021 LHZ421-441>443-032130- /O.CON.KDTX.SC.Y.0007.000000T0000Z-210203T2100Z/ /O.NEW.KDTX.GL.A.0002.210205T0300Z-210206T1500Z/ Outer Saginaw Bay SW of Alabaster to Port Austin MI to Inner Saginaw Bay-Port Austin to Harbor Beach MI- Harbor Beach to Port Sanilac MI-Port Sanilac to Port Huron MI- 402 AM EST Wed Feb 3 2021 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 4 PM EST THIS AFTERNOON... ...GALE WATCH IN EFFECT FROM THURSDAY EVENING THROUGH SATURDAY MORNING... * WHAT...During the Small Craft Advisory, expect sustained winds up to 20 knots from the northwest with gusts up to 24 knots. The largest significant waves will be 6 feet with a potential maximum wave height of 8 feet. During the Gale Watch, expect sustained winds up to 29 knots from the southwest with gusts up to 42 knots. The largest significant waves will be 6 feet with a potential maximum wave height of 8 feet. * WHERE...Outer Saginaw Bay SW of Alabaster to Port Austin MI to Inner Saginaw Bay, Port Austin to Harbor Beach MI, Harbor Beach to Port Sanilac MI and Port Sanilac to Port Huron MI. * WHEN...During the Small Craft Advisory, the maximum winds are expected around 4 AM EST Wednesday with the largest waves expected around 4 AM EST Wednesday. During the Gale Watch, the maximum winds are expected around 1 PM EST Friday with the largest waves expected around 2 PM EST Friday. * IMPACTS...Strong winds can cause hazardous waves which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should consider altering plans to avoid possible hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for severe wind and waves. && $$ LHZ361-362-032130- /O.NEW.KDTX.GL.A.0002.210205T0300Z-210206T1500Z/ Lake Huron from 5NM east of Mackinac Bridge to Presque Isle Lt beyond 5 NM off shore- Lake Huron from Presque Isle Light to Sturgeon Point MI beyond 5NM off shore- 402 AM EST Wed Feb 3 2021 ...GALE WATCH IN EFFECT FROM THURSDAY EVENING THROUGH SATURDAY MORNING... * WHAT...Expect sustained winds up to 30 knots from the southwest with gusts up to 47 knots. The largest significant waves will be 11 feet with a potential maximum wave height of 16 feet. * WHERE...Lake Huron from 5NM east of Mackinac Bridge to Presque Isle Lt beyond 5 NM off shore and Lake Huron from Presque Isle Light to Sturgeon Point MI beyond 5NM off shore. * WHEN...The maximum winds are expected around 1 PM EST Friday with the largest waves expected around 2 PM EST Friday. * IMPACTS...Strong winds can cause hazardous waves 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 waves. && $$ LHZ363-462>464-032130- /O.NEW.KDTX.GL.A.0002.210205T0300Z-210206T1500Z/ Lake Huron from Sturgeon Point to Alabaster MI beyond 5NM off shore- Lake Huron from Port Austin to Harbor Beach beyond 5NM Off Shore- Lake Huron from Harbor Beach to Port Sanilac beyond 5NM Off Shore- Lake Huron from Port Sanilac to Port Huron beyond 5NM Off Shore- 402 AM EST Wed Feb 3 2021 ...GALE WATCH IN EFFECT FROM THURSDAY EVENING THROUGH SATURDAY MORNING... * WHAT...Expect sustained winds up to 33 knots from the southwest with gusts up to 48 knots. The largest significant waves will be 11 feet with a potential maximum wave height of 16 feet. * WHERE...Lake Huron from Sturgeon Point to Alabaster MI beyond 5NM off shore, Lake Huron from Port Austin to Harbor Beach beyond 5NM Off Shore, Lake Huron from Harbor Beach to Port Sanilac beyond 5NM Off Shore and Lake Huron from Port Sanilac to Port Huron beyond 5NM Off Shore. * WHEN...The maximum winds are expected around 2 PM EST Friday with the largest waves expected around 2 PM EST Friday. * IMPACTS...Strong winds can cause hazardous waves which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should consider altering plans to avoid possible hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for severe wind and waves. && $$ LCZ460-LEZ444-032130- /O.NEW.KDTX.GL.A.0002.210205T0300Z-210206T1500Z/ Lake St Clair- Michigan Waters of Lake Erie from Detroit River to North Cape MI- 402 AM EST Wed Feb 3 2021 ...GALE WATCH IN EFFECT FROM THURSDAY EVENING THROUGH SATURDAY MORNING... * WHAT...Expect sustained winds up to 25 knots from the southwest with gusts up to 38 knots. The largest significant waves will be 2 feet with a potential maximum wave height of 3 feet. * WHERE...In Lake St Clair, Lake St Clair. In Lake Erie, Michigan Waters of Lake Erie from Detroit River to North Cape MI. * WHEN...The maximum winds are expected around 7 AM EST Friday with the largest waves expected around 10 AM EST Friday. * IMPACTS...Strong winds can cause hazardous waves 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 waves. && $$ LHZ422-032130- /O.NEW.KDTX.GL.A.0002.210205T0300Z-210206T1500Z/ Inner Saginaw Bay SW of Point Au Gres to Bay Port MI- 402 AM EST Wed Feb 3 2021 ...GALE WATCH IN EFFECT FROM THURSDAY EVENING THROUGH SATURDAY MORNING... * WHAT...Expect sustained winds up to 25 knots from the southwest with gusts up to 36 knots possible. * WHERE...Inner Saginaw Bay SW of Point Au Gres to Bay Port MI. * WHEN...The maximum winds are expected around 11 AM EST Friday with the largest waves expected around. * IMPACTS...Strong winds can cause hazardous waves which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should consider altering plans to avoid possible hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for severe wind and waves. && $$
149 WHUS73 KDTX 031429 MWWDTX URGENT - MARINE WEATHER MESSAGE National Weather Service Detroit/Pontiac MI 929 AM EST Wed Feb 3 2021 LHZ421-441>443-040330- /O.CON.KDTX.SC.Y.0007.000000T0000Z-210203T2100Z/ /O.CON.KDTX.GL.A.0002.210205T0300Z-210206T1500Z/ Outer Saginaw Bay SW of Alabaster to Port Austin MI to Inner Saginaw Bay-Port Austin to Harbor Beach MI- Harbor Beach to Port Sanilac MI-Port Sanilac to Port Huron MI- 929 AM EST Wed Feb 3 2021 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 4 PM EST THIS AFTERNOON... ...GALE WATCH REMAINS IN EFFECT FROM THURSDAY EVENING THROUGH SATURDAY MORNING... * WHAT...During the Small Craft Advisory, expect sustained winds up to 17 knots from the northwest with gusts up to 22 knots. The largest significant waves will be 5 feet with a potential maximum wave height of 8 feet. During the Gale Watch, expect sustained winds up to 29 knots from the southwest with gusts up to 42 knots. The largest significant waves will be 6 feet with a potential maximum wave height of 8 feet. * WHERE...Port Austin to Harbor Beach MI, Harbor Beach to Port Sanilac MI, Port Sanilac to Port Huron MI and Outer Saginaw Bay SW of Alabaster to Port Austin MI to Inner Saginaw Bay. * WHEN...During the Small Craft Advisory, the maximum winds are expected around 9 AM EST Wednesday with the largest waves expected around 9 AM EST Wednesday. During the Gale Watch, the maximum winds are expected around 12 PM EST Friday with the largest waves expected around 2 PM EST Friday. * IMPACTS...Strong winds can cause hazardous waves 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 waves. && $$ LHZ361-362-040330- /O.CON.KDTX.GL.A.0002.210205T0300Z-210206T1500Z/ Lake Huron from 5NM east of Mackinac Bridge to Presque Isle Lt beyond 5 NM off shore- Lake Huron from Presque Isle Light to Sturgeon Point MI beyond 5NM off shore- 929 AM EST Wed Feb 3 2021 ...GALE WATCH REMAINS IN EFFECT FROM THURSDAY EVENING THROUGH SATURDAY MORNING... * WHAT...Expect sustained winds up to 30 knots from the southwest with gusts up to 47 knots. The largest significant waves will be 11 feet with a potential maximum wave height of 16 feet. * WHERE...Lake Huron from 5NM east of Mackinac Bridge to Presque Isle Lt beyond 5 NM off shore and Lake Huron from Presque Isle Light to Sturgeon Point MI beyond 5NM off shore. * WHEN...The maximum winds are expected around 1 PM EST Friday with the largest waves expected around 2 PM EST Friday. * IMPACTS...Strong winds can cause hazardous waves which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should consider altering plans to avoid possible hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for severe wind and waves. && $$ LHZ363-462>464-040330- /O.CON.KDTX.GL.A.0002.210205T0300Z-210206T1500Z/ Lake Huron from Sturgeon Point to Alabaster MI beyond 5NM off shore- Lake Huron from Port Austin to Harbor Beach beyond 5NM Off Shore- Lake Huron from Harbor Beach to Port Sanilac beyond 5NM Off Shore- Lake Huron from Port Sanilac to Port Huron beyond 5NM Off Shore- 929 AM EST Wed Feb 3 2021 ...GALE WATCH REMAINS IN EFFECT FROM THURSDAY EVENING THROUGH SATURDAY MORNING... * WHAT...Expect sustained winds up to 33 knots from the southwest with gusts up to 48 knots. The largest significant waves will be 11 feet with a potential maximum wave height of 16 feet. * WHERE...Lake Huron from Port Austin to Harbor Beach beyond 5NM Off Shore, Lake Huron from Port Sanilac to Port Huron beyond 5NM Off Shore, Lake Huron from Harbor Beach to Port Sanilac beyond 5NM Off Shore and Lake Huron from Sturgeon Point to Alabaster MI beyond 5NM off shore. * WHEN...The maximum winds are expected around 1 PM EST Friday with the largest waves expected around 2 PM EST Friday. * IMPACTS...Strong winds can cause hazardous waves 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 waves. && $$ LCZ460-LEZ444-040330- /O.CON.KDTX.GL.A.0002.210205T0300Z-210206T1500Z/ Lake St Clair- Michigan Waters of Lake Erie from Detroit River to North Cape MI- 929 AM EST Wed Feb 3 2021 ...GALE WATCH REMAINS IN EFFECT FROM THURSDAY EVENING THROUGH SATURDAY MORNING... * WHAT...Expect sustained winds up to 25 knots from the southwest with gusts up to 38 knots. The largest significant waves will be 2 feet with a potential maximum wave height of 3 feet. * WHERE...In Lake St Clair, Lake St Clair. In Lake Erie, Michigan Waters of Lake Erie from Detroit River to North Cape MI. * WHEN...The maximum winds are expected around 8 AM EST Friday with the largest waves expected around 10 AM EST Friday. * IMPACTS...Strong winds can cause hazardous waves which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should consider altering plans to avoid possible hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for severe wind and waves. && $$ LHZ422-040330- /O.CON.KDTX.GL.A.0002.210205T0300Z-210206T1500Z/ Inner Saginaw Bay SW of Point Au Gres to Bay Port MI- 929 AM EST Wed Feb 3 2021 ...GALE WATCH REMAINS IN EFFECT FROM THURSDAY EVENING THROUGH SATURDAY MORNING... * WHAT...Expect sustained winds up to 25 knots from the southwest with gusts up to 40 knots possible. * WHERE...Inner Saginaw Bay SW of Point Au Gres to Bay Port MI. * WHEN...The maximum winds are expected around 9 AM EST Friday with the largest waves expected around. * IMPACTS...Strong winds can cause hazardous waves 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 waves. && $$
023 WHUS73 KDTX 032041 MWWDTX URGENT - MARINE WEATHER MESSAGE National Weather Service Detroit/Pontiac MI 341 PM EST Wed Feb 3 2021 LHZ421-441>443-040915- /O.EXP.KDTX.SC.Y.0007.000000T0000Z-210203T2100Z/ /O.CON.KDTX.GL.A.0002.210205T0300Z-210206T1500Z/ Outer Saginaw Bay SW of Alabaster to Port Austin MI to Inner Saginaw Bay-Port Austin to Harbor Beach MI- Harbor Beach to Port Sanilac MI-Port Sanilac to Port Huron MI- 341 PM EST Wed Feb 3 2021 ...GALE WATCH REMAINS IN EFFECT FROM THURSDAY EVENING THROUGH SATURDAY MORNING... ...SMALL CRAFT ADVISORY WILL EXPIRE AT 4 PM EST THIS AFTERNOON... * WHAT...Expect sustained winds up to 28 knots from the southwest with gusts up to 38 knots. The largest significant waves will be 4 feet with a potential maximum wave height of 5 feet. * WHERE...Port Austin to Harbor Beach MI, Harbor Beach to Port Sanilac MI, Port Sanilac to Port Huron MI and Outer Saginaw Bay SW of Alabaster to Port Austin MI to Inner Saginaw Bay. * WHEN...The maximum winds are expected around 5 AM EST Friday with the largest waves expected around 7 AM EST Friday. * IMPACTS...Strong winds can cause hazardous waves which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should consider altering plans to avoid possible hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for severe wind and waves. && $$ LHZ361-362-040915- /O.CON.KDTX.GL.A.0002.210205T0300Z-210206T1500Z/ Lake Huron from 5NM east of Mackinac Bridge to Presque Isle Lt beyond 5 NM off shore- Lake Huron from Presque Isle Light to Sturgeon Point MI beyond 5NM off shore- 341 PM EST Wed Feb 3 2021 ...GALE WATCH REMAINS IN EFFECT FROM THURSDAY EVENING THROUGH SATURDAY MORNING... * WHAT...Expect sustained winds up to 26 knots from the southwest with gusts up to 38 knots. The largest significant waves will be 9 feet with a potential maximum wave height of 13 feet. * WHERE...Lake Huron from 5NM east of Mackinac Bridge to Presque Isle Lt beyond 5 NM off shore and Lake Huron from Presque Isle Light to Sturgeon Point MI beyond 5NM off shore. * WHEN...The maximum winds are expected around 7 AM EST Friday with the largest waves expected around 6 PM EST Friday. * IMPACTS...Strong winds can cause hazardous waves 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 waves. && $$ LHZ363-462>464-040915- /O.CON.KDTX.GL.A.0002.210205T0300Z-210206T1500Z/ Lake Huron from Sturgeon Point to Alabaster MI beyond 5NM off shore- Lake Huron from Port Austin to Harbor Beach beyond 5NM Off Shore- Lake Huron from Harbor Beach to Port Sanilac beyond 5NM Off Shore- Lake Huron from Port Sanilac to Port Huron beyond 5NM Off Shore- 341 PM EST Wed Feb 3 2021 ...GALE WATCH REMAINS IN EFFECT FROM THURSDAY EVENING THROUGH SATURDAY MORNING... * WHAT...Expect sustained winds up to 30 knots from the southwest with gusts up to 43 knots. The largest significant waves will be 10 feet with a potential maximum wave height of 14 feet. * WHERE...Lake Huron from Port Austin to Harbor Beach beyond 5NM Off Shore, Lake Huron from Port Sanilac to Port Huron beyond 5NM Off Shore, Lake Huron from Harbor Beach to Port Sanilac beyond 5NM Off Shore and Lake Huron from Sturgeon Point to Alabaster MI beyond 5NM off shore. * WHEN...The maximum winds are expected around 7 AM EST Friday with the largest waves expected around 6 PM EST Friday. * IMPACTS...Strong winds can cause hazardous waves which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should consider altering plans to avoid possible hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for severe wind and waves. && $$ LCZ460-LEZ444-040915- /O.CON.KDTX.GL.A.0002.210205T0300Z-210206T1500Z/ Lake St Clair- Michigan Waters of Lake Erie from Detroit River to North Cape MI- 341 PM EST Wed Feb 3 2021 ...GALE WATCH REMAINS IN EFFECT FROM THURSDAY EVENING THROUGH SATURDAY MORNING... * WHAT...Expect sustained winds up to 20 knots from the southwest with gusts up to 36 knots. The largest significant waves will be 1 feet with a potential maximum wave height of 2 feet. * WHERE...In Lake St Clair, Lake St Clair. In Lake Erie, Michigan Waters of Lake Erie from Detroit River to North Cape MI. * WHEN...The maximum winds are expected around 1 PM EST Friday with the largest waves expected around 2 PM EST Friday. * IMPACTS...Strong winds can cause hazardous waves 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 waves. && $$ LHZ422-040915- /O.CON.KDTX.GL.A.0002.210205T0300Z-210206T1500Z/ Inner Saginaw Bay SW of Point Au Gres to Bay Port MI- 341 PM EST Wed Feb 3 2021 ...GALE WATCH REMAINS IN EFFECT FROM THURSDAY EVENING THROUGH SATURDAY MORNING... * WHAT...Expect sustained winds up to 26 knots from the southwest with gusts up to 37 knots possible. * WHERE...Inner Saginaw Bay SW of Point Au Gres to Bay Port MI. * WHEN...The maximum winds are expected around 5 AM EST Friday with the largest waves expected around. * IMPACTS...Strong winds can cause hazardous waves which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should consider altering plans to avoid possible hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for severe wind and waves. && $$
What forecasters said that day
The local office's own words before this small craft advisory went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Detroit, MI wrote its last area forecast discussion before this small craft advisory went out at Jan 30, 3:26 AM EST, 2 minutes earlier.
Area forecast discussion, Jan 30, 3:26 AM EST, 2 minutes before
Area Forecast Discussion...CORRECTED ADVISORY TIMES
National Weather Service Detroit/Pontiac MI
326 AM EST Sat Jan 30 2021
.DISCUSSION...
A Winter Weather Advisory is being issued for Wayne, Washtenaw,
Lenawee and Monroe counties starting this evening at 10pm and ending
at 10pm Sunday. This is a long duration snow event with the most
widespread snowfall across SE MI occuring between 06-15Z where 2-4
inches is expected in the Advisory and 1 inch or less for points
north. Moisture quality and forcing decreases from north to south
through the afternoon. Trailing trough axis should keep snow falling
across the Advisory area at least through the evening hours with an
additional 1-2 inches possible for a 24 hour total in the 4-6 inch
range.
Synoptic setup remains largely unchanged from the last few forecast
cycles. A midlevel trough crossing the southern Rockies at this time
will produce a surface low over the central Plains today. A jet
streak shooting east through the trough will steer the system
through the Ohio Valley tonight into Sunday, reaching the mid
Atlantic on Monday. As has been noted for a few cycles now, model to
model and run to run consistency has been very good for a few days
now adding confidence to the going forecast and also recent trends.
Main trends to note are slightly lower QPF values especially north
of M59 and a flatter surface low track.
The mid level wave doesn't take on as strong of a negative tilt
favoring more of a neutral tilt which then doesn't pull the surface
low as far north allowing it to ride more due easterly on the
jetlet. This keeps the stronger, more persistent lower level forcing
to our south leaving southern MI with waves of elevated fgen and
vorticity ribbons advecting north through the area as they emanate
away from the weakening system. In addition, broader lift from the
mid level low in which the center is supposed to track across
southern MI on Sunday will provide some forcing.
Best overlap of moisture and forcing will come in that prime window
mentioned above from about 06-15Z as strongest ribbon of isentropic
ascent pivots over the south, PWATs approaching a half inch, a layer
of specific humidity of 3g/kg noses in around 700-850mb. After that
height falls relocate well south and east of the weakening primary
low which shunts better moisture and forcing away from the area. We
are then left with forcing becoming constricted tighter to the
deformation region of the mid level low and any trailing surface
trough lagging over the area.
In terms of snow, we are expecting a fine/small flake size. The DGZ
is above 10kft and lapse rates never get strong within it. Soundings
show saturation within the DGZ struggles at times as well with a
deep layer of nearly isothermal temps around -6C below it. For what
it's worth, it is hard to find a model that offers up better that a
10:1 ratio and local probability graphics support 0.1-0.2 inch per
hour rates.
Additional energy dipping down the backside of the trough will
attempt to keep snow going over our eastern counties through Monday
boosted by Lake Huron moisture. The approaching ridge finally wins
out and pushes the last of the snow east Monday night setting up a
quiet mid week period. Gradual warming trend through the week,
especially Thursday as upper level heights build and winds turn
southwesterly. Temperatures should reach the upper 30s Thursday and
mid 30s Friday, muted by incoming clouds and precip with the next
system. This system Friday largely looks warm producing mostly rain.
&&
.MARINE...
Dry conditions and light north/northwesterly winds will continue
through the day as high pressure centered over the Great Lakes
gradually moves east. Winds become easterly during the evening and
strengthen in the wake of a tightening pressure gradient as low
pressure approaches the Ohio Valley late tonight/early Sunday. Winds
remain below gales, with sustained winds of 15 to 20 knots and gusts
around 25 knots possible. Strong easterly flow will produce onshore
waves reaching Small Craft Advisory criteria, with potential for
peak waves to exceed 6 feet on Sunday. The system also brings the
potential for snow over the southern half of the marine forecast
area throughout the day on Sunday, particularly for Lake Erie and
Lake St. Clair. High pressure then builds into the Midwest early
next week, bringing dry conditions along with it.
&&
.PREV DISCUSSION...
Issued at 1156 PM EST Fri Jan 29 2021
AVIATION...
VFR conditions will prevail as upper level clouds increase in
coverage overnight as subtropical plume works into area in advance
of next storm system now moving through the southwest CONUS. Cigs
will lower/thicken further on Saturday, but remain aoa 10kft for
this forecast period. Light northwest flow will become variable
overnight and switch to easterly on Saturday.
DTW THRESHOLD PROBABILITIES...
* None.
&&
.DTX WATCHES/WARNINGS/ADVISORIES...
MI...Winter Weather Advisory from 9 PM this evening to 9 PM EST Sunday
for MIZ075-076-082-083.
Lake Huron...Small Craft Advisory from 4 AM Sunday to 4 AM EST Monday for LHZ421-
441>443.
Lake St Clair...NONE.
Michigan waters of Lake Erie...NONE.
&&
DISCUSSION...DRK
MARINE.......MV
AVIATION.....DG
You can obtain your latest National Weather Service forecasts online
at www.weather.gov/detroit.Hazardous weather outlook, Jan 29, 4:08 AM EST, 23 hours 20 minutes before
Hazardous Weather Outlook National Weather Service Detroit/Pontiac MI 408 AM EST Fri Jan 29 2021 MIZ047>049-053>055-060>063-068>070-075-076-082-083-301000- Midland-Bay-Huron-Saginaw-Tuscola-Sanilac-Shiawassee-Genesee-Lapeer- St. Clair-Livingston-Oakland-Macomb-Washtenaw-Wayne-Lenawee-Monroe- 408 AM EST Fri Jan 29 2021 This hazardous weather outlook is for portions of southeast Michigan. .DAY ONE...Today and Tonight No hazardous weather is expected at this time. .DAYS TWO THROUGH SEVEN...Saturday through Thursday Low pressure will track into the Ohio Valley late Saturday into Sunday and will bring the likelihood for accumulating snow. At this time, locations south of I-69 have the better chances of seeing snowfall accumulations with the highest totals most likely south of I-94. Snow will likely begin after midnight Saturday and may persist into early Monday. The exact track of the low pressure system remains uncertainty at this time and thus additional adjustments regarding best snowfall potential will be likely leading closer to the event. .SPOTTER INFORMATION STATEMENT... Spotter activation will not be needed today and tonight. LCZ460-LEZ444-LHZ361>363-421-422-441>443-462>464-301000- Lake St Clair- Michigan Waters of Lake Erie from Detroit River to North Cape MI- Lake Huron from 5NM east of Mackinac Bridge to Presque Isle Lt beyond 5 NM off shore- Lake Huron from Presque Isle Light to Sturgeon Point MI beyond 5NM off shore- Lake Huron from Sturgeon Point to Alabaster MI beyond 5NM off shore- Outer Saginaw Bay SW of Alabaster to Port Austin MI to Inner Saginaw Bay-Inner Saginaw Bay SW of Point Au Gres to Bay Port MI- Port Austin to Harbor Beach MI-Harbor Beach to Port Sanilac MI- Port Sanilac to Port Huron MI- Lake Huron from Port Austin to Harbor Beach beyond 5NM Off Shore- Lake Huron from Harbor Beach to Port Sanilac beyond 5NM Off Shore- Lake Huron from Port Sanilac to Port Huron beyond 5NM Off Shore- 408 AM EST Fri Jan 29 2021 This hazardous weather outlook is for portions of Lake Erie, Lake Huron and Lake St Clair. .DAY ONE...Today and Tonight Small Craft Advisories remain in effect for the nearshore waters of Lake Huron through the afternoon. Please refer to the latest nearshore marine forecast for details. .DAYS TWO THROUGH SEVEN...Saturday through Thursday No hazardous weather is expected at this time. .SPOTTER INFORMATION STATEMENT... Spotter activation will not be needed today and tonight. You can obtain your latest National Weather Service forecasts online at www.weather.gov/detroit. DRK
The office that day
Everything else NWS Detroit, MI issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jan 30, 3:44 AM EST | Winter Weather Advisory | DTX | Lenawee, Monroe, Washtenaw, Wayne | 31 hr |
Nearby
Small Craft Advisories in Michigan, 2021Every small craft advisory 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.