Port Hope, MI Marine Weather and Tide Forecast

Marine Weather and Tide Forecast for Port Hope, MI

April 14, 2024 11:57 PM EDT (03:57 UTC) Change Location
Sunrise 6:38 AM   Sunset 8:09 PM
Moonrise 9:41 AM   Moonset 1:37 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.

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Marine Forecasts
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LHZ363 Expires:202404150930;;755483 Fzus63 Kdtx 150117 Glflh
open lake forecast for lake huron national weather service detroit/pontiac mi 917 pm edt Sun apr 14 2024
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 - High pressure, 30.10 inches, builds into the central great lakes through Monday evening, with another low arriving on Wednesday. Strong easterly winds will likely develop Tuesday night into Wednesday.
lhz361>363-150930- lake huron from 5nm east of mackinac bridge to presque isle lt beyond 5 nm off shore- 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- 917 pm edt Sun apr 14 2024

Rest of tonight - Northwest winds 5 to 15 knots. Waves 1 to 3 feet.

Monday - West winds 5 to 10 knots increasing to 10 to 15 knots late in the afternoon. Waves 1 to 3 feet.

Monday night - North winds 10 to 15 knots becoming northwest 5 to 10 knots in the late evening and overnight. Waves 2 to 4 feet.

Tuesday - North winds 5 to 10 knots veering to the northeast early in the afternoon. Waves 1 to 3 feet.

Tuesday night - Northeast winds 10 to 15 knots becoming east 20 to 25 knots with gusts to around 30 knots. A chance of showers after midnight. Waves 2 to 4 feet building to 6 to 9 feet in the late evening and overnight. Waves occasionally around 12 feet.

Wednesday - East winds to 30 knots decreasing to 15 to 20 knots. Gusts to 40 knot gales decreasing to 30 knots late in the evening. Showers. Waves 10 to 14 feet subsiding to 6 to 9 feet late in the evening. Waves occasionally around 18 feet.

Thursday - East winds 10 to 15 knots veering to the south in the late morning and early afternoon - .then veering to the west until early morning. A chance of showers early in the morning. Waves 3 to 5 feet subsiding to 1 to 3 feet in the late evening and early morning.

Friday - West winds 10 to 15 knots. Waves 1 to 3 feet building to 2 to 4 feet.

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7 Day Forecast for Marine Location Near Port Hope, MI
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Area Discussion for - Detroit/Pontiac, MI
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Area Forecast Discussion National Weather Service Detroit/Pontiac MI 1153 PM EDT Sun Apr 14 2024


- Temperatures will drop into the 40s and 50s this evening.

- Monday and Tuesday will be dry.

- Showers are expected Tuesday night and Wednesday. There is a chance for thunderstorms Tuesday afternoon and evening.


A lake modified cold front has backdoored off of Lake Huron, heralding building surface high pressure across Southeast Michigan.
Low level flow trajectories will become increasingly anticyclonic leading to system relative isentropic downglide through approximately 18Z Monday. High confidence in VFR conditions. Surface winds are expected to emerge again out of the northwest at 10 knots for Monday.


* None.

Issued at 300 PM EDT Sun Apr 14 2024


High pressure will expand across Lower Michigan tonight within confluent mid level northwest flow. Sfc winds will turn toward the north-northeast in advance of the sfc ridge and will help drive the Lake Huron marine layer inland during the course of the evening.
Portions of the forecast area will see a 15 to 25 degree drop in temps during the course of the evening with this cold front. A weakening of the winds and clear skies overnight will prompt ideal radiational cooling, supporting min temps down into the 40s.

The upper low now over the west coast is forecast to invoke downstream ridge amplification across the Great Lakes. This will sustain sfc high pressure across Lower Mi into Tuesday, maintaining dry and tranquil conditions. The airmass will be much cooler across Se Mi on Monday as 850mb temps will be a good 10 degrees colder than today. Model soundings indicate afternoon mixing depths up to 6k feet which should equate to afternoon highs into the 60s. A little more moisture near the top of the mixed layer may support some degree of afternoon cu on Monday. Light winds and clear skies will then support another decent radiational cooling night Monday night, supportive of forecast mins in the upper 30s to mid 40s. The surface ridge axis will shift northeast of the area on Tuesday. Prevailing east flow off the lakes and increasing mid/high clouds will warrant slightly cooler afternoon highs (upper 50s to low 60s).

The 12Z model suite continue to show the upper low lifting across the Upper Great Lakes Wed into Wed night, with the associated sfc low forecast to occlude across the Upper Mississippi Valley by Wednesday morning. A lead push of mid level moisture/isentropic ascent will be driven across Se Mi late Tues/Tuesday night within a region of respectable upper level divergence. While low level dry air is likely to delay the onset of the rain on Tuesday, the strength of the ascent and moisture transport will warrant a good chance of rain Tues night. The main point of uncertainty in the forecast revolves around the timing of the occlusion process and whether or not the warm sector instability axis is able to lift into Se Mi or remains south of the state. Both deterministic runs and ensemble members show ample variations to maintain a good deal of forecast uncertainty as to the amount of instability over Se Mi and thus the severe weather risk if any. The large scale ascent along/ahead of the sfc front and at least some weak elevated instability will be enough to support high chances of showers and thunderstorms.

This entire system is forecast to rapidly weaken as it lifts northeast of the region Wed night/Thursday as a polar low tracks across across southern Canada late in the week. This system will deliver a seasonally cool airmass to Great Lakes region late week and next weekend.


Dry cold front clearing southeast Michigan this afternoon, with westerly wind gusts along the shorelines flirting with 25 knots.
Winds have already topped out and will be diminishing the rest of evening as a ridge of high pressure builds into Lower Michigan tonight. Light winds persist Monday before easterly winds begin to ramp on Tuesday ahead of the next low pressure system moving into the Central Great Lakes on Wednesday. A period of easterly gales is possible Tuesday night into Wednesday, mainly over the northern half of Lake Huron. A good deal of warm air will be spreading in, supporting neutral to stable low level profiles, thus gales look to be marginal, and still too far out to issue watch. An extended period of widespread showers late Tuesday night through Wednesday Night, along with a slight chance of thunderstorms.

Another weak cold front to swing through to end the work week, with just light to moderate winds to follow the passage for the Weekend.

Lake Huron...None.
Lake St Clair...None.
Michigan waters of Lake Erie...None.

Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesinHgDewPt
KP58 41 mi63 min 0 46°F 29.8140°F
HRBM4 - 9075014 - Harbor Beach, MI 48 mi58 min N 1.9G2.9 45°F 46°F29.7941°F

Wind History for Harbor Beach, MI
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Airport Reports
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AirportDistAgeWind ktVisSkyWeatherTempDewPtRHinHg
KP0 sm62 mincalm--46°F39°F76%29.80
Link to 5 minute data for KP58

Wind History from P58
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Tide / Current for
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Weather Map
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GEOS Local Image of great lakes   

Gaylord, MI,

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