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Marine Weather and Tides
Version 3.4 |
12/16/2019 NOAA is having trouble with requests that include wind gusts. I am posting graphs without wind gusts until it gets fixed. 10/9/2019 Updated the Marine Zones. 9/4/2019 Fixed the weather maps due to NOAA moving them. 7/25/2019 New feature in the Airports section gives a link to 5 minute updates for data reports. |
| Sunrise 6:38AM | Sunset 9:02PM | Tuesday August 4, 2020 9:34 AM EDT (13:34 UTC) | Moonrise 9:06PM | Moonset 6:25AM | Illumination 100% |  |
LMZ874 Expires:202008041515;;908671 Fzus63 Kmkx 040809 Glflm Open Lake Forecast For Lake Michigan National Weather Service Milwaukee/sullivan Wi 309 Am Cdt Tue Aug 4 2020 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.. Lake michigan will remain in a north to northeasterly wind regime today due to high pressure of 30.2 inches over southern canada and weak low pressure of 29.9 inches over the eastern great lakes. The winds and resultant wave heights will gradually decrease as the high pressure ridge edges closer today. Lighter winds are then expected through mid-week under the high. Winds turn to the south and increase as the high shifts east and a low pressure of 29.8 inches moves into the central plains. && lmz080-669-671-673-675-777-779-870-872-874-876-878-041515- 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- 309 am cdt Tue aug 4 2020 sheboygan wi to pentwater mi south...
Today..North winds 10 to 20 kt. Slight chance of showers this morning. Waves 3 to 5 ft.
Tonight..North winds 10 to 20 kt diminishing to 10 to 15 kt after midnight, then becoming northwest 5 to 10 kt late. Waves 3 to 5 ft subsiding to 1 to 3 ft.
Wednesday..West winds 5 to 10 kt backing to southwest. Waves 1 to 3 ft.
Wednesday night..South winds 10 to 15 kt diminishing to 5 to 10 kt. Waves 1 to 2 ft.
Thursday..Southwest winds 5 to 10 kt becoming south 10 to 15 kt. Waves 1 to 3 ft.
Thursday night..Southeast winds 10 to 15 kt becoming south 5 to 10 kt. Waves 1 to 3 ft.
Friday..South winds 10 to 15 kt increasing to 10 to 20 kt. Waves 1 to 3 ft.
Saturday..South winds 10 to 20 kt. Waves 2 to 4 ft building to 3 to 5 ft.
Synopsis.. Lake michigan will remain in a north to northeasterly wind regime today due to high pressure of 30.2 inches over southern canada and weak low pressure of 29.9 inches over the eastern great lakes. The winds and resultant wave heights will gradually decrease as the high pressure ridge edges closer today. Lighter winds are then expected through mid-week under the high. Winds turn to the south and increase as the high shifts east and a low pressure of 29.8 inches moves into the central plains. && lmz080-669-671-673-675-777-779-870-872-874-876-878-041515- 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- 309 am cdt Tue aug 4 2020 sheboygan wi to pentwater mi south...
Today..North winds 10 to 20 kt. Slight chance of showers this morning. Waves 3 to 5 ft.
Tonight..North winds 10 to 20 kt diminishing to 10 to 15 kt after midnight, then becoming northwest 5 to 10 kt late. Waves 3 to 5 ft subsiding to 1 to 3 ft.
Wednesday..West winds 5 to 10 kt backing to southwest. Waves 1 to 3 ft.
Wednesday night..South winds 10 to 15 kt diminishing to 5 to 10 kt. Waves 1 to 2 ft.
Thursday..Southwest winds 5 to 10 kt becoming south 10 to 15 kt. Waves 1 to 3 ft.
Thursday night..Southeast winds 10 to 15 kt becoming south 5 to 10 kt. Waves 1 to 3 ft.
Friday..South winds 10 to 15 kt increasing to 10 to 20 kt. Waves 1 to 3 ft.
Saturday..South winds 10 to 20 kt. Waves 2 to 4 ft building to 3 to 5 ft.
LMZ874
7 Day Forecast for Marine Location Near Saugatuck, MI
Hourly EDIT Helplocation: 42.84, -86.63 debug
Area Discussion for - Grand Rapids, MI
(on/off) Help NOTE: mouseover dotted underlined text for definitionFXUS63 KGRR 040957 AFDGRR
Area Forecast Discussion National Weather Service Grand Rapids MI 557 AM EDT Tue Aug 4 2020
LATEST UPDATE . Aviation
SYNOPSIS. Issued at 302 AM EDT Tue Aug 4 2020
- Showers remain possible through today
- Quiet and mild weather Wednesday through Saturday
- Warmer with chances for showers/storms Sunday-Monday
DISCUSSION. (Today through next Monday) Issued at 302 AM EDT Tue Aug 4 2020
-- Showers remain possible through today --
A few light showers are persisting over the heart of the area early this morning. These showers are likely the result of the combination of the large scale forcing overhead ahead of the incoming upper trough, and the low level NE flow bringing some lake instability inland from Lake Huron.
This upper low/trough is expected to progress through the region through today, and be exiting the eastern portion of the area toward 00z this evening. The low and associated cold pool aloft will lead to some light showers developing with the heating of the day. Thunder chances look almost zero with the sufficient instability expected to stay just east of the area. The showers should dissipate toward 00z as the low moves out, and we lose the diurnal heating/instability.
-- Quiet and mild weather Wednesday through Saturday --
Wednesday looks like it should be quiet across the area. The area will be under the influence of ridging in between the departing low to our east, and the next short wave dropping SE over the region. This short wave will arrive on Thursday. However, it will be coming in just after a dry period with high pressure having been in control. Moisture will be quite limited with no influx of moisture expected. Sprinkles look to be about the extent of any possible precipitation.
The trough on Thursday will move out, and upper ridging will take control of the weather for Friday and Saturday. Temperatures will gradually warm a little each day as return flow on the backside of the sfc ridge will gradually bring in a little warmer temperatures.
-- Warmer with chances for showers/storms Sunday-Monday --
Rain chances will then slowly increase on Sunday, and probably peaking early Monday. Heights will build a little more toward the area, and a warm front will be trying to nose overhead. This will bring the instability axis closer, along with the forcing from the warm front. Temperatures will also increase a bit more as the area of warmth from the Plains moves in.
AVIATION. (For the 12Z TAFS through 12Z Wednesday morning) Issued at 554 AM EDT Tue Aug 4 2020
Quite a bit of IFR across Lower Michigan this morning. It's going to take several hours for cigs to lift due to the persistent upper trough overhead. Local radar also shows a few light showers east of US-131. MKG should remain VFR today and the other sites will eventually rise to VFR this afternoon.
MARINE. Issued at 302 AM EDT Tue Aug 4 2020
Our main marine concerns will be found in the first 12 hours or so of the forecast. These concerns include Small Craft Advisory conditions, Beach Hazards, and waterspout potential. Winds and waves are not a big problem early this morning with winds being offshore. They are expected to ramp up some this afternoon as the flow becomes onshore. This will not be the ideal beach day with the cool air temps and clouds, along with the lakeshore water temps having plummeted.
Waterspouts also remain possible into the afternoon, before the threat comes to an end this evening. The weather pattern is quite favorable with the upper low and cold pool of temps aloft moving over the generally warm lake water temps. As the low moves out of the area this evening, the threat will come to an end.
GRR WATCHES/WARNINGS/ADVISORIES. MI . Beach Hazards Statement through this evening for MIZ037-043-050- 056-064-071.
LM . Small Craft Advisory until 11 PM EDT this evening for LMZ844>849.
SYNOPSIS . NJJ DISCUSSION . NJJ AVIATION . 04 MARINE . NJJ
Weather Reporting Stations
EDIT (on/off) Help NOTE: Click on distance to see the station location on a map| Stations | Dist | Age | Wind | Air Temp | Water Temp | Waves | Pressure | DewPt |
| 45029 | 19 mi | 24 min | N 5.8 G 5.8 | 55°F | 53°F | 2 ft | 1017.4 hPa | 50°F |
| HLNM4 - 9087031 - Holland, MI | 23 mi | 52 min | N 8 G 8.9 | 51°F | 52°F | 1016.7 hPa | 50°F | |
| 45007 - S MICHIGAN 43NM East Southeast of Milwaukee, WI | 24 mi | 34 min | NNE 14 G 18 | 64°F | 71°F | 1017.6 hPa | 57°F | |
| 45161 | 28 mi | 34 min | N 1.9 G 3.9 | 53°F | 50°F | 1 ft | 1017.3 hPa (+0.4) | |
| MKGM4 - Muskegon, MI | 31 mi | 24 min | NE 7 G 8.9 | 60°F | 1017.3 hPa | 55°F | ||
| 45168 | 34 mi | 24 min | NNW 9.7 G 12 | 58°F | 57°F | 2 ft | 1017.4 hPa | 52°F |
| SVNM4 - South Haven, MI | 35 mi | 34 min | N 11 G 12 | 57°F | ||||
| SJOM4 - St. Joseph, MI | 52 mi | 34 min | NNE 9.9 G 15 | 61°F | 1017.9 hPa (+1.3) |
Wind History for Holland, MI
(wind in knots) EDIT (on/off) Help| 10 AM | 11 AM | 12 PM | 1 PM | 2 PM | 3 PM | 4 PM | 5 PM | 6 PM | 7 PM | 8 PM | 9 PM | 10 PM | 11 PM | 12 AM | 1 AM | 2 AM | 3 AM | 4 AM | 5 AM | 6 AM | 7 AM | 8 AM | 9 AM | |
| Last 24hr | NW | NW | NW | NW | NW | N | N | N | N | N | N G15 | N | N G15 | N G17 | N G14 | N G13 | N G12 | N G10 | N G8 | N G10 | N G8 | NW | N | N |
| 1 day ago | NW | NW | NW | S | S | S | S | S | W | W | W | NW | SW | W | NW | NE | NE | NE G6 | NE G9 | N | N | N G9 | N | N G8 |
| 2 days ago | E | E G10 | E G9 | NE G8 | N | NE G7 | NW | N | N | NW | N | N | NE G6 | NW | NW | S | NE | W | NW | N | NW | N | -- | NW |
Airport Reports
EDIT (on/off) Help Click EDIT to display multiple airports. Follow links for more data.| Airport | Dist | Age | Wind kt | Visibility | Sky/Weather | Temp | DewPt | Humidity | Pressure |
| Holland - West Michigan Regional Airport, MI | 29 mi | 41 min | Var 6 | 10.00 mi | Fair | 62°F | 52°F | 70% | 1017.1 hPa |
Link to 5 minute data for KBIV
Wind History from BIV (wind in knots)
| 10 AM | 11 AM | 12 PM | 1 PM | 2 PM | 3 PM | 4 PM | 5 PM | 6 PM | 7 PM | 8 PM | 9 PM | 10 PM | 11 PM | 12 AM | 1 AM | 2 AM | 3 AM | 4 AM | 5 AM | 6 AM | 7 AM | 8 AM | 9 AM | |
| Last 24hr | E | NW | NW | N | W | NW | NW G16 | N | NE G17 | N G17 | N G16 | N G15 | N G16 | N | NE | NE | NE | N | N | N | ||||
| 1 day ago | NW | W | SW | W | W | W | W | W | W | Calm | W | Calm | Calm | NE | NE | N | NE | N | N | N | NE | |||
| 2 days ago | E | E | Calm | E | E | NE | N | N | N | Calm | Calm | Calm | Calm | W | W | N | N | Calm | W | NW | NW |
Tide / Current Tables for
EDIT Weekend mode (on/off) (on/off) HelpTide / Current Tables for
EDIT (on/off) HelpWeather Map
(on/off) Help Weather Map
GEOS Local Image of EDIT
NOTE: East coast views moved to GEOS-16. They are experimental and not well supported by NOAA so they may not be correct so be warned. This change required redoing a large amount of the GOES code. If the image you are expecting is not showing, please let me know. You may need to use the EDIT function to update your location.
Link to Loop
Other links: Northern Pacific Contential US Full GOES-East
Wind Forecast for Grand Rapids, MI (9,2,3,4)
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Ground Weather Radar Station Grand Rapids/Muskegon, MI
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