Marine Weather and Tide Forecast for Montague, MI
April 18, 2025 6:23 PM EDT (22:23 UTC) Change Location
 | Sunrise 6:55 AM Sunset 8:32 PM Moonrise 12:46 AM Moonset 8:56 AM |
LMZ872 Expires:202504190315;;046202 Fzus63 Kmkx 181959 Glflm
open lake forecast for lake michigan national weather service milwaukee/sullivan wi 259 pm cdt Fri apr 18 2025
for waters beyond five nautical miles of shore on lake michigan.
waves are provided as a range of significant wave heights, which is the average of the highest 1/3 of the wave, along with the average height of the highest 10% of the waves which will occasionally be encountered.
Synopsis -
breezy southerly winds persist as low pressure around 29.5 inches continues northeastward into wi then central portions of the lake by this evening. A cold front will extend southwest from the low crossing the southern half of lake later this evening. The modest south winds will veer northwest through this evening (beginning with the northern lake, then the southern half as the front passes). There are additional chances for Thunderstorms along with some hail and strong winds across southern half of the lake later today into tonight with the cold front.
modest northwest winds continue behind the cold front overnight followed by lighter north winds Saturday, as high pressure around 30.4 inches builds into the great lakes region. This area of high pressure is expected to cross superior and upper peninsula of michigan Saturday night. Winds will be light and variable across the lake Saturday evening into Sunday morning. East to northeast winds are expected Sunday.
lmz080-669-671-673-675-777-779-870-872-874-876-878-190315- lake michigan from michigan city in to st. Joseph mi 5 nm offshore to mid lake- lake michigan from sheboygan to port washington wi 5 nm offshore to mid lake- lake michigan from port washington to north point light wi 5 nm offshore to mid lake- lake michigan from north point light to wind point wi 5 nm offshore to mid lake- lake michigan from wind point wi to winthrop harbor il 5 nm offshore to mid lake- lake michigan from winthrop harbor to wilmette harbor il 5 nm offshore to mid lake- lake michigan from wilmette harbor il to michigan city in 5 nm offshore to mid lake- lake michigan from whitehall to pentwater mi 5 nm offshore to mid lake- lake michigan from grand haven to whitehall mi 5 nm offshore to mid lake- lake michigan from holland to grand haven mi 5 nm offshore to mid lake- lake michigan from south haven to holland mi 5 nm offshore to mid lake- lake michigan from st. Joseph to south haven mi 5 nm offshore to mid lake- 259 pm cdt Fri apr 18 2025
sheboygan wi to pentwater mi south - .
Tonight - Southwest winds to 30 kt veering to northwest 15 to 25 kt. Chance of rain showers and Thunderstorms. Waves 4 to 6 ft occasionally to 8 ft.
Saturday - Northwest winds 10 to 20 kt veering to northeast 10 to 15 kt. Waves 3 to 5 ft subsiding to 1 to 3 ft.
Saturday night - East winds 5 to 10 kt becoming northeast 10 to 15 kt. Waves 1 to 2 ft.
Sunday - East winds 10 to 20 kt. Chance of rain showers. Waves 2 to 4 ft.
Sunday night - East winds 15 to 25 kt becoming southeast. Rain showers likely with a chance of Thunderstorms in the evening, then rain showers overnight. Waves 3 to 5 ft building to 4 to 7 ft occasionally to 9 ft.
Monday - South winds 15 to 25 kt becoming southwest to 30 kt. Rain showers likely in the morning, then chance of rain showers in the afternoon. Waves 5 to 8 ft occasionally to 10 ft.
Monday night - West winds 15 to 25 kt becoming northwest 10 to 20 kt. Waves 4 to 7 ft occasionally to 9 ft subsiding to 3 to 5 ft.
Tuesday - Northwest winds 10 to 20 kt backing to southeast 10 to 15 kt. Waves 2 to 4 ft subsiding to 1 to 3 ft.
Wednesday - South winds 10 to 15 kt. Waves 1 to 3 ft.
open lake forecast for lake michigan national weather service milwaukee/sullivan wi 259 pm cdt Fri apr 18 2025
for waters beyond five nautical miles of shore on lake michigan.
waves are provided as a range of significant wave heights, which is the average of the highest 1/3 of the wave, along with the average height of the highest 10% of the waves which will occasionally be encountered.
breezy southerly winds persist as low pressure around 29.5 inches continues northeastward into wi then central portions of the lake by this evening. A cold front will extend southwest from the low crossing the southern half of lake later this evening. The modest south winds will veer northwest through this evening (beginning with the northern lake, then the southern half as the front passes). There are additional chances for Thunderstorms along with some hail and strong winds across southern half of the lake later today into tonight with the cold front.
modest northwest winds continue behind the cold front overnight followed by lighter north winds Saturday, as high pressure around 30.4 inches builds into the great lakes region. This area of high pressure is expected to cross superior and upper peninsula of michigan Saturday night. Winds will be light and variable across the lake Saturday evening into Sunday morning. East to northeast winds are expected Sunday.
lmz080-669-671-673-675-777-779-870-872-874-876-878-190315- lake michigan from michigan city in to st. Joseph mi 5 nm offshore to mid lake- lake michigan from sheboygan to port washington wi 5 nm offshore to mid lake- lake michigan from port washington to north point light wi 5 nm offshore to mid lake- lake michigan from north point light to wind point wi 5 nm offshore to mid lake- lake michigan from wind point wi to winthrop harbor il 5 nm offshore to mid lake- lake michigan from winthrop harbor to wilmette harbor il 5 nm offshore to mid lake- lake michigan from wilmette harbor il to michigan city in 5 nm offshore to mid lake- lake michigan from whitehall to pentwater mi 5 nm offshore to mid lake- lake michigan from grand haven to whitehall mi 5 nm offshore to mid lake- lake michigan from holland to grand haven mi 5 nm offshore to mid lake- lake michigan from south haven to holland mi 5 nm offshore to mid lake- lake michigan from st. Joseph to south haven mi 5 nm offshore to mid lake- 259 pm cdt Fri apr 18 2025
sheboygan wi to pentwater mi south - .
LMZ800
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7 Day Forecast for Marine Location Near Montague, MI
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Area Discussion for Grand Rapids, MI
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FXUS63 KGRR 181940 AFDGRR
Area Forecast Discussion National Weather Service Grand Rapids MI 340 PM EDT Fri Apr 18 2025
KEY MESSAGES
- Warm with periods of showers/storms tonight
- Another wet and breezy system Sunday through Monday
- Mild with small chances of rain Tuesday through Thursday
DISCUSSION
Issued at 340 PM EDT Fri Apr 18 2025
- Warm with periods of showers/storms tonight
Low confidence forecast with respect to severe weather potential and coverage this evening. Warmer, more humid air continues to flow in from the south with temps in the 70s and dew pts in the mid to upper 50s. Despite lingering cloud cover, some sfc based cape is now developing south of I-96 and that is expected to grow and expand farther north with time through this evening. However RAP guidance continues to show 200-300 J/KG of CIN persisting for several hours.
Mid level lapse rates of 8-9 C/KM are present over srn Lwr MI so if the cap can be broken by either the shortwave approaching from the southwest and/or the cold front slowing leaning in from the northwest then strong to severe storms could quickly develop.
Large hail and damaging winds are the main threat. Will have the highest pops early this evening north and west of a MKG to MOP line, expanding/moving south and east with the slow moving cold front through the night.
Shower and storm threat ending late tonight or Saturday morning as the cold front settles south of the state but considerable cloudiness lingering, especially south.
- Another wet and breezy system Sunday through Monday
Shower potential ramping up again later Sunday and Sunday night as wound-up low tracks from the Plains toward Wisconsin. Best shower and storm potential should be 06Z-18Z Monday when the sfc occlusion and negative tilt upper trough is swinging through, although some wrap-around showers will linger in the cold advection Monday afternoon and night. Another aspect from this system will be winds; with brisk easterly flow preceding it and strong westerly flow on the back side.
- Mild with small chances of rain Tuesday through Thursday
Tuesday and beyond features occasional (but for now low) shower chances with ripply zonal flow aloft and decent baroclinicity overhead/nearby. There are no major cold intrusions shown and temperatures for the mid to late week period are expected to be a bit above normal.
AVIATION /12Z TAFS THROUGH 12Z SATURDAY/
Issued at 147 PM EDT Fri Apr 18 2025
Showers and storms will be the main focus for any aviation concerns through the TAF period. This mornings convection brought widespread rainfall along with some strong thunderstorms. Daytime heating should couple with the added moisture to bring several opportunities for showers and storms this afternoon and evening.
Models show the potential for mid afternoon convection which could bring periods of TSRA to MKG, GRR and LAN. There is more instability through the western portion of SW MI so have VCTS at MKG and GRR and it is more likely to see TSRA between 22Z to 00Z.
While there is the potential at LAN, it could be just west of them so have PROB30 group accordingly.
Showers and a few storms will remains likely at all TAF sites between 02Z to 08Z. There is some LLWS concerns out ahead of the line so have shear in the TAF's until 08Z.
Behind the front will be an increase of low clouds with lowering cigs into Saturday morning. That will bring MVFR to IFR cigs between 08Z to 12Z. IFR looks more widespread with conditions improving to MVFR after 12Z and VFR after 15Z.
MARINE
Issued at 340 PM EDT Fri Apr 18 2025
We're seeing a lull in winds and waves currently but will keep the small craft advisory going into Saturday morning since the cold frontal passage tonight will bring a period of increased northerly winds. Occasional thunderstorms are also expected over Lk MI tonight.
GRR WATCHES/WARNINGS/ADVISORIES
MI...None.
MARINE...Small Craft Advisory until 11 AM EDT Saturday for LMZ844>849.
Area Forecast Discussion National Weather Service Grand Rapids MI 340 PM EDT Fri Apr 18 2025
KEY MESSAGES
- Warm with periods of showers/storms tonight
- Another wet and breezy system Sunday through Monday
- Mild with small chances of rain Tuesday through Thursday
DISCUSSION
Issued at 340 PM EDT Fri Apr 18 2025
- Warm with periods of showers/storms tonight
Low confidence forecast with respect to severe weather potential and coverage this evening. Warmer, more humid air continues to flow in from the south with temps in the 70s and dew pts in the mid to upper 50s. Despite lingering cloud cover, some sfc based cape is now developing south of I-96 and that is expected to grow and expand farther north with time through this evening. However RAP guidance continues to show 200-300 J/KG of CIN persisting for several hours.
Mid level lapse rates of 8-9 C/KM are present over srn Lwr MI so if the cap can be broken by either the shortwave approaching from the southwest and/or the cold front slowing leaning in from the northwest then strong to severe storms could quickly develop.
Large hail and damaging winds are the main threat. Will have the highest pops early this evening north and west of a MKG to MOP line, expanding/moving south and east with the slow moving cold front through the night.
Shower and storm threat ending late tonight or Saturday morning as the cold front settles south of the state but considerable cloudiness lingering, especially south.
- Another wet and breezy system Sunday through Monday
Shower potential ramping up again later Sunday and Sunday night as wound-up low tracks from the Plains toward Wisconsin. Best shower and storm potential should be 06Z-18Z Monday when the sfc occlusion and negative tilt upper trough is swinging through, although some wrap-around showers will linger in the cold advection Monday afternoon and night. Another aspect from this system will be winds; with brisk easterly flow preceding it and strong westerly flow on the back side.
- Mild with small chances of rain Tuesday through Thursday
Tuesday and beyond features occasional (but for now low) shower chances with ripply zonal flow aloft and decent baroclinicity overhead/nearby. There are no major cold intrusions shown and temperatures for the mid to late week period are expected to be a bit above normal.
AVIATION /12Z TAFS THROUGH 12Z SATURDAY/
Issued at 147 PM EDT Fri Apr 18 2025
Showers and storms will be the main focus for any aviation concerns through the TAF period. This mornings convection brought widespread rainfall along with some strong thunderstorms. Daytime heating should couple with the added moisture to bring several opportunities for showers and storms this afternoon and evening.
Models show the potential for mid afternoon convection which could bring periods of TSRA to MKG, GRR and LAN. There is more instability through the western portion of SW MI so have VCTS at MKG and GRR and it is more likely to see TSRA between 22Z to 00Z.
While there is the potential at LAN, it could be just west of them so have PROB30 group accordingly.
Showers and a few storms will remains likely at all TAF sites between 02Z to 08Z. There is some LLWS concerns out ahead of the line so have shear in the TAF's until 08Z.
Behind the front will be an increase of low clouds with lowering cigs into Saturday morning. That will bring MVFR to IFR cigs between 08Z to 12Z. IFR looks more widespread with conditions improving to MVFR after 12Z and VFR after 15Z.
MARINE
Issued at 340 PM EDT Fri Apr 18 2025
We're seeing a lull in winds and waves currently but will keep the small craft advisory going into Saturday morning since the cold frontal passage tonight will bring a period of increased northerly winds. Occasional thunderstorms are also expected over Lk MI tonight.
GRR WATCHES/WARNINGS/ADVISORIES
MI...None.
MARINE...Small Craft Advisory until 11 AM EDT Saturday for LMZ844>849.
| Stations | Dist | Age | Wind | Air | Water | Waves | inHg | DewPt |
| 45214 | 32 mi | 163 min | 40°F | 2 ft | ||||
| MKGM4 - Muskegon, MI | 37 mi | 23 min | S 16G | 52°F | 29.65 | 52°F | ||
| 45029 | 43 mi | 23 min | S 12G | 47°F | 38°F | 2 ft | 46°F | |
| 45013 | 44 mi | 53 min | S 5.8G | 52°F | 42°F | 1 ft | 29.67 | |
| 45199 | 45 mi | 53 min | S 12 | 42°F | 39°F | 1 ft | 29.67 | |
| MLWW3 - Milwaukee, WI | 46 mi | 33 min | WSW 4.1G | 66°F |
Wind History for Holland, MI
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Link to 1 hour of 5 minute data for KMKG
Terminal Aerodrome Forecast (TAF) for KMKG
Wind History Graph: MKG
(wind in knots)
GEOS Local Image of GreatLakes
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Grand Rapids/Muskegon, MI,
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