Fennville, MI Marine Weather and Tide Forecast
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Marine Weather and Tide Forecast for Fennville, MI

June 17, 2024 3:55 PM EDT (19:55 UTC) Change Location
Sunrise 6:03 AM   Sunset 9:27 PM
Moonrise 4:17 PM   Moonset 2:01 AM 
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NOTE: Some of the data on this page has not been verified and should be used with that in mind. It may and occasionally will, be wrong. The tide reports are by xtide and are NOT FOR NAVIGATION.

Marine Forecasts
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LMZ845 South Haven To Holland Mi- 1105 Am Edt Mon Jun 17 2024

Rest of today - South winds around 15 knots. Sunny. A slight chance of showers and Thunderstorms in the afternoon. Waves 1 to 3 feet.

Tonight - South winds 10 to 20 knots. Partly cloudy with a slight chance of showers and Thunderstorms. Waves 1 to 2 feet.

Tuesday - South winds 15 to 20 knots. Mostly Sunny with a chance of showers and Thunderstorms. Waves 1 to 3 feet.

Tuesday night - South winds 15 to 20 knots. Partly cloudy. Waves 1 to 3 feet.

Juneteenth - Southwest winds 10 to 20 knots decreasing to 5 to 10 knots late in the day. Mostly Sunny. Waves 1 to 3 feet.

Thursday - Southwest winds 5 to 10 knots veering northwest. Mostly Sunny. Waves 1 foot or less.

Friday - Northwest winds 5 to 10 knots becoming around 10 knots. Mostly Sunny. Waves 1 foot or less.

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7 Day Forecast for Marine Location Near Fennville, MI
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Area Discussion for - Grand Rapids, MI
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Area Forecast Discussion National Weather Service Grand Rapids MI 316 PM EDT Mon Jun 17 2024


- Hot and humid with p.m. chances for storms through Tuesday

- Heat, humidity, predominantly dry Wednesday through Saturday

- Unsettled beginning Saturday then cooler beginning Sunday

Issued at 315 PM EDT Mon Jun 17 2024

- Hot and humid with p.m. chances for storms through Tuesday

No changes will be made to the going Heat Advisory with this forecast package.

We have had a few isolated cells pop up this afternoon along a line of slightly enhanced convergent flow roughly from south of Grand Rapids to Saginaw Bay away from the Lake Michigan shoreline.
This slightly enhanced convergence looks like it is the result of the flow off of the lake, but not a lake breeze with SW flow. This is interacting with an atmosphere with 3500 J/kg of MU CAPE available. Obviously plenty of instability, but little to no shear under the upper ridge to help sustain any updrafts. Thus far, we have had some winds of 30 mph out of cells. These will continue to be possible through sunset, when any leftover convection should come to an end.

The potential for additional diurnal convection looks a little better for Tuesday afternoon and evening as compared to this afternoon. Instability looks to be a little less tomorrow afternoon, but values will still be up around 3150 J/kg. The difference for Tuesday afternoon is that a short wave riding up the backside of the upper ridge is forecast to move through the area Tuesday afternoon. This will provide as a better focus for convective development. Deep layer shear is still expected to be quite low around 15-20 knots, so we are anticipating pulse type storms with some small hail, winds to 40 mph, and locally heavy downpours.

Once again, convection should come to an end toward sunset Tuesday evening.

- Heat, humidity, predominantly dry Wednesday through Saturday

No substantive changes to the forecast. We continue to expect highs in the low 90s and maximum apparent temperatures in the upper 90s.
The Heat Advisory looks good at least through Friday with decent prospects for eventually expanding this into Saturday. As noted previously, there are slightly better chances for showers and storms farther north towards US-10 in the Wednesday into Thursday timeframe, but overall chances remain low.

- Unsettled beginning Saturday then cooler beginning Sunday

We continue to see a signal for a pattern change over the weekend.
There are timing differences with the approach of an upper PV max and attendant cold front and convection. Some guidance has this as early as Saturday afternoon while other guidance has this as late as Sunday afternoon. Generally speaking, is is hard to transition out of hot spells like these without some type of severe weather. Even if convection was to move through our area Sunday morning around the time of minimum diurnal instability, there still could be plenty of residual conditional instability given the very ripe, warm and humid airmass we will have developed over the preceding days.

Issued at 142 PM EDT Mon Jun 17 2024

Continued previous strategy of keeping VCSH in TAFs this afternoon. So far this afternoon, we have seen very spotty and short-lived showers and thunderstorms. Expect this to continue, meaning that the chances of a terminal experiencing a direct hit from a storm are low. If it did happen, the duration would be less than half an hour given the isolated nature and fast motion of thunderstorm cells.

Issued at 315 PM EDT Mon Jun 17 2024

We are issuing a Small Craft Advisory and Beach Hazards Statement for the northern half of the lakeshore starting Tuesday morning, going through most of Wednesday.

The better gradient between the sfc ridge to our SE, and the low to our NW will be located over the northern half of our nearshore/lakeshore areas. It looks to be strong enough to generate 3-5 ft waves from around Whitehall to Manistee, especially near Little and Big Sable Points. This will continue into much of Wednesday, before the gradient weakens enough to not require them.

The rest of the work week looks like it will be calmer with a weaker gradient in place. The gradient is not forecast to tighten up until toward Saturday as a front approaches.

MI...Air Quality Alert until midnight EDT tonight for MIZ037-043-050- 056-064-071.
Beach Hazards Statement from Tuesday morning through Wednesday afternoon for MIZ037-043-050.
Heat Advisory until 8 PM EDT Friday for MIZ043>046-050>052- 056>059-064>067-071>074.
MARINE...Small Craft Advisory from 8 AM Tuesday to 4 PM EDT Wednesday for LMZ847>849.

Weather Reporting Stations
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Stations Dist Age Wind AirWater WavesinHgDewPt
HLNM4 - 9087031 - Holland, MI 11 mi56 minS 14G15 75°F 68°F29.9266°F
45029 20 mi36 minS 7.8G9.7 68°F 63°F2 ft66°F
SVNM4 - South Haven, MI 20 mi26 minSSE 8G8 82°F
45168 22 mi46 minS 3.9G5.8 74°F 67°F1 ft29.9667°F
45161 39 mi46 min 2 ft
MKGM4 - Muskegon, MI 42 mi26 minSSE 15G15 69°F 29.9267°F
SJOM4 - St. Joseph, MI 44 mi56 minSSW 8G8.9 84°F 29.99

Wind History for Holland, MI
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Airport Reports
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AirportDistAgeWind ktVisSkyWeatherAirDewPtRHinHg
KBIV WEST MICHIGAN RGNL,MI 6 sm62 minSW 14G2210 smClear93°F70°F47%29.97
KLWA SOUTH HAVEN AREA RGNL,MI 23 sm20 minWSW 12G1610 smClear91°F70°F49%29.95
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Wind History graph: BIV
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Tide / Current for
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Grand Rapids/Muskegon, MI,

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