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

June 15, 2024 12:54 PM EDT (16:54 UTC) Change Location
Sunrise 6:03 AM   Sunset 9:26 PM
Moonrise 2:10 PM   Moonset 1:24 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 Sat Jun 15 2024

Rest of today - Southeast winds around 10 knots. Mostly Sunny. Waves 1 foot or less.

Tonight - Southeast winds 10 to 20 knots. Partly cloudy. Waves 1 to 2 feet.

Sunday - South winds 15 to 20 knots. Mostly Sunny. Waves 1 to 3 feet.

Sunday night - South winds around 15 knots. Partly cloudy with a slight chance of showers and Thunderstorms. Waves 1 to 3 feet.

Monday - Southwest winds 10 to 20 knots. Sunny with a slight chance of rain showers. Waves 1 to 3 feet.

Tuesday - South winds around 15 knots. Mostly Sunny. Waves 1 to 2 feet.

Juneteenth - Southwest winds 10 to 15 knots. Mostly Sunny. Waves 1 to 2 feet.

LMZ800
No data


7 Day Forecast for Marine Location Near Fennville, MI
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Area Discussion for - Grand Rapids, MI
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FXUS63 KGRR 151142 AFDGRR

Area Forecast Discussion National Weather Service Grand Rapids MI 742 AM EDT Sat Jun 15 2024

KEY MESSAGES

- Hotter and More Humid Sunday

- Heat and Humidity Still in the Forecast for Sunday and Next Week

- A Few Chances for Showers and Storms Next Week

DISCUSSION
Issued at 335 AM EDT Sat Jun 15 2024

- Hotter and More Humid Sunday

High pressure will bring fair wx today with mostly clear to partly cloudy skies and high temps in the upper 70's to lower 80's. Fair wx will continue tonight as the high pressure ridges moves east of our region.

It will become hotter and more humid Sunday as southerly flow waa develops on the back side of the departing ridge. H8 temps moderate to 18-20 C and high temps will reach the 85 to 90 degree range tomorrow.

An overall shorter range guidance consensus shows potential for scattered showers and perhaps a few thunderstorms tomorrow mainly north of I-96 as a mid to upper level disturbance moves in from the west. However convective potential will be mitigated significantly by weak instability. The 00Z HRRR shows stronger instability tomorrow will stay well to the west to sw of our area.

- Heat and Humidity Still in the Forecast for Sunday and Next Week

So, while the heat and humidity still look on track for next week there are certainly mixed signals that lead to slightly lower confidence overall. The mixed signals are that while 500mb heights rise into the 590s dm next week there are still disparities in high temperature output. The ECMWF is still very bullish on 90s each day while the GFS holds in the 80s. 590s heights do not happen that often, so those are anomalous values. Conversely, the 850mb temperatures are not all that rare by summer standards in Michigan.
A combination of the GFS and ECWMF operational 850mb temperatures range between +16C and +21C from Sunday through Friday. These are very typical 850mb numbers during warm spells, certainly not off the charts. High 850mb temperatures would be in the +22C to +26C range and we are just not seeing that. Ensemble high temperatures at GRR are completely in the 80s in the GFS over the next 10 days. The highest is 89 on Monday. The ECMWF ensemble guidance has 91 almost every day between Sunday and Friday with 94 on Monday being the only outlier.

The bottom line is that it will be a warm spell with upper 80s to lower 90s temperatures for highs. Nighttime lows will remain in the 70s for days which does not happen all that often. A prolonged period of warm weather with little relief coming at night, but nothing too atypical for a mid summer warm spell. People without air conditioning will need to be checked on through the week though as the cumulative affect of the warmth will take its toll. Folks working outdoors will need to be prepared for the warmth as well.

- A Few Chances for Showers and Storms Next Week

The GFS and ECWMF both have a boundary that sags into the area in the mid to late week. Too early to be very confident in how precipitation chances work out though. Moisture associated with the front and potential precipitation could aid in keeping high temperatures in check a bit. We do not have any pops in the forecast that are above 20-30 percent.

AVIATION /12Z TAFS THROUGH 12Z SUNDAY/
Issued at 743 AM EDT Sat Jun 15 2024

VFR weather is expected the next 24 hours. Mid and high clouds will stream in from the west through the forecast period with bases at or above 15,000 feet. No restrictions to visibility are anticipated. Southeast winds of 5 to 15 knots are in the forecast today.

MARINE
Issued at 335 AM EDT Sat Jun 15 2024

Rather minimal wave heights and wind speeds are forecast today.
Winds will veer to the southeast and begin to strengthen somewhat late tonight. Winds will become southerly and ramp up to 15 to 25 kts causing wave heights to build particularly across our northern marine zones. A small craft advisory will be needed Sunday.

GRR WATCHES/WARNINGS/ADVISORIES
MI...None.
MARINE...None.




Weather Reporting Stations
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Stations Dist Age Wind AirWater WavesinHgDewPt
HLNM4 - 9087031 - Holland, MI 11 mi55 minE 9.9G12 75°F 62°F30.12
45029 20 mi35 minSE 7.8G12 69°F 60°F1 ft56°F
SVNM4 - South Haven, MI 20 mi45 minENE 6G8 75°F
45168 22 mi45 minSSE 5.8G7.8 71°F 65°F1 ft30.1556°F
45161 39 mi45 min 1 ft
MKGM4 - Muskegon, MI 42 mi35 minE 8.9G12 75°F 30.1152°F
SJOM4 - St. Joseph, MI 44 mi55 minSSE 1.9G6 78°F 30.15


Wind History for Holland, MI
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Airport Reports
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AirportDistAgeWind ktVisSkyWeatherAirDewPtRHinHg
KBIV WEST MICHIGAN RGNL,MI 6 sm61 minESE 1110 smClear79°F52°F39%30.17
KLWA SOUTH HAVEN AREA RGNL,MI 23 sm19 minSE 0710 smClear77°F54°F44%30.14
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Wind History graph: BIV
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Grand Rapids/Muskegon, MI,




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