


Great Lakes Forecast
Issued by NWS
Issued by NWS
683 FZUS63 KDTX 061947 GLFLH Open Lake Forecast for Lake Huron National Weather Service Detroit/Pontiac MI 347 PM EDT Sun Apr 6 2025 For waters beyond five nautical miles off shore on Lake Huron Waves are the significant wave height - the average of the highest 1/3 of the wave spectrum. Occasional wave height is the average of the highest 1/10 of the wave spectrum. .SYNOPSIS...Low pressure, 29.60 inches, will move through northern Lake Huron tomorrow morning, with gales developing behind the passage of the low on Monday. High pressure will expand into the region from the west late Tuesday. Low pressure is forecast to track across the Ohio Valley or southern Great Lakes Wednesday night into Thursday. LHZ361-070400- Lake Huron from 5NM east of Mackinac Bridge to Presque Isle Lt beyond 5 NM off shore- 347 PM EDT Sun Apr 6 2025 ...GALE WARNING IN EFFECT FROM MONDAY MORNING THROUGH MONDAY EVENING... .TONIGHT...East winds 5 to 10 knots becoming southeast 10 to 15 knots in the late evening and early morning...then backing to the east early in the morning. A chance of snow showers in the evening...then snow showers after midnight. Waves 1 to 3 feet building to 2 to 4 feet after midnight. .MONDAY...North winds 10 to 15 knots increasing to 20 to 25 knots with gusts to 35 knot gales in the late morning and afternoon. Snow showers likely in the morning...then a chance of snow showers in the afternoon. Waves 3 to 5 feet building to 6 to 9 feet in the afternoon. Waves occasionally around 12 feet. .MONDAY NIGHT...Northwest winds 20 to 25 knots with gusts to 35 knot gales becoming north 15 to 20 knots with gusts to around 30 knots in the late evening and overnight. Waves 5 to 7 feet. Waves occasionally around 10 feet. .TUESDAY...Northwest winds 15 to 20 knots. Waves 3 to 5 feet. .TUESDAY NIGHT...Northwest winds 15 to 20 knots decreasing to 5 to 10 knots. Waves 3 to 5 feet subsiding to 1 to 3 feet after midnight. .WEDNESDAY...West winds 5 to 10 knots backing to the south late in the morning...then backing to the southeast late in the afternoon. Waves 1 to 3 feet. .THURSDAY...East winds 5 to 10 knots backing to the northwest in the late evening and early morning. Waves 1 to 3 feet. .FRIDAY...North winds 5 to 10 knots backing to the west until early morning. Waves 2 feet or less. $$ LHZ362-363-070400- Lake Huron from Presque Isle Light to Sturgeon Point MI beyond 5NM off shore- Lake Huron from Sturgeon Point to Alabaster MI beyond 5NM off shore- 347 PM EDT Sun Apr 6 2025 ...GALE WARNING IN EFFECT FROM MONDAY MORNING THROUGH LATE MONDAY NIGHT... .TONIGHT...Southeast winds 10 to 15 knots becoming south 15 to 20 knots with gusts to around 30 knots after midnight. A chance of snow showers after midnight. Waves 1 to 3 feet building to 4 to 6 feet after midnight. Waves occasionally around 8 feet. .MONDAY...South winds 15 to 20 knots becoming northwest to 30 knots in the afternoon. Gusts to 35 knot gales. Snow showers likely. Waves 6 to 9 feet building to 10 to 14 feet late in the afternoon. Waves occasionally around 18 feet. .MONDAY NIGHT...Northwest winds to 30 knots decreasing to 20 to 25 knots after midnight. Gusts to 35 knot gales. Waves 10 to 14 feet. Waves occasionally around 18 feet. .TUESDAY...Northwest winds 20 to 25 knots decreasing to 15 to 20 knots in the late morning and afternoon. Waves 6 to 9 feet. Waves occasionally around 12 feet. .TUESDAY NIGHT...Northwest winds 15 to 20 knots decreasing to 10 to 15 knots in the late evening and overnight. Waves 4 to 6 feet. Waves occasionally around 8 feet. .WEDNESDAY...West winds 5 to 10 knots backing to the south late in the morning...then becoming southeast 10 to 15 knots late in the afternoon. Waves 1 to 3 feet. .THURSDAY...East winds 10 to 15 knots backing to the northeast until early morning. A chance of rain and snow early in the morning. Waves 2 to 4 feet. .FRIDAY...North winds 10 to 15 knots decreasing to 5 to 10 knots in the late evening and early morning. Waves 1 to 3 feet. $$ LHZ462>464-070400- 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- 347 PM EDT Sun Apr 6 2025 ...GALE WARNING IN EFFECT FROM MONDAY AFTERNOON THROUGH LATE MONDAY NIGHT... .TONIGHT...East winds 5 to 10 knots veering to the southeast late in the evening...then becoming south 10 to 15 knots after midnight increasing to 15 to 20 knots early in the morning. Waves 1 to 3 feet building to 2 to 4 feet early in the morning. .MONDAY...South winds 15 to 20 knots with gusts to around 30 knots veering to the southwest with gusts to 35 knot gales early in the afternoon...then becoming northwest 20 to 25 knots with gusts to 35 knot gales late in the afternoon. Snow showers likely. Waves 5 to 7 feet building to 10 to 14 feet late in the afternoon. Waves occasionally around 18 feet. .MONDAY NIGHT...Northwest winds to 30 knots decreasing to 20 to 25 knots after midnight. Gusts to 35 knot gales. Snow showers likely in the evening...then a chance of snow showers after midnight. Waves 10 to 14 feet. Waves occasionally around 18 feet. .TUESDAY...Northwest winds 20 to 25 knots with gusts to around 30 knots decreasing to 15 to 20 knots early in the afternoon. Waves 8 to 12 feet. Waves occasionally around 15 feet. .TUESDAY NIGHT...Northwest winds 10 to 15 knots decreasing to 5 to 10 knots in the late evening and overnight. Waves 3 to 5 feet. .WEDNESDAY...West winds 5 to 10 knots backing to the southwest late in the morning...then becoming southeast 10 to 15 knots late in the afternoon. A chance of rain and snow late in the evening. Waves 1 to 3 feet building to 2 to 4 feet late in the evening. .THURSDAY...East winds 10 to 15 knots backing to the north until early morning. A chance of rain and snow. Waves 2 to 4 feet. .FRIDAY...North winds 10 to 15 knots. Waves 2 to 4 feet. $$ LHZ461-070400- MAFOR 0621/ HURON NORTH...Gale Warning in effect...11500 12410 12427 11627 11837 11840 19850. Waves 1 to 3 feet building to 3 to 5 feet tonight. Waves 5 to 7 feet. Occasional wave height around 10 feet Monday. HURON SOUTH...Gale Warning in effect...11300 11310 11410 12420 11527 11637 19657 11747 19757. Waves 1 to 3 feet building to 2 to 4 feet tonight. Waves 3 to 5 feet building to 5 to 7 feet...THEN building to 8 to 12 feet. Occasional wave height around 15 feet Monday. $$ SF Experimental modernized open lake forecast is available online at weather.gov/dtx/glftable (all lower case) Graphical marine forecasts are available online at weather.gov/greatlakes (all lower case)