Marine Weather and Tide Forecast for Flint, MI
 | Sunrise 7:44 AM Sunset 7:42 PM Moonrise 5:42 AM Moonset 4:12 PM |
Marine Forecasts
NOTE: Zones were updated 3/20/2025. If your report is out of date, please click Edit
LHZ422 Inner Saginaw Bay Sw Of Point Au Gres To Bay Port Mi- 355 Pm Edt Mon Mar 16 2026
.gale warning in effect through Tuesday morning - .
.low water advisory in effect until 4 am edt Tuesday - .
Tonight - Northwest winds to 35 knot gales this evening, then diminishing to 30 knots after midnight. Gusts to 40 knot gales. Mostly cloudy. Isolated light snow showers in the evening. Waves 4 to 6 feet. Waves occasionally around 8 feet.
Tuesday - Northwest winds 20 to 25 knots with gusts to 30 knots becoming west 15 to 20 knots early in the afternoon. Partly cloudy until late afternoon becoming mostly cloudy. Waves 2 to 4 feet subsiding to 1 to 3 feet early in the afternoon.
Tuesday night - West winds 15 to 20 knots becoming southwest 10 to 15 knots in the late evening and overnight. Partly cloudy. Waves 1 to 3 feet.
Wednesday - South winds 15 to 20 knots increasing to 20 to 25 knots in the late morning and afternoon. Mostly cloudy. Waves 2 to 4 feet.
wave heights are for ice free areas.
see lake huron open lake forecast for days 3 through 5.
wave heights are for ice free areas.
see lake huron open lake forecast for days 3 through 5.
LHZ400
No data
No data
7 Day Forecast for Marine Location Near Flint, MI
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Area Discussion for Detroit/Pontiac, MI
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FXUS63 KDTX 161932 AFDDTX
Area Forecast Discussion National Weather Service Detroit/Pontiac MI 332 PM EDT Mon Mar 16 2026
KEY MESSAGES
- Wind Advisory remains in effect through this evening. Temperatures fall into the teens and lingering gusty winds results in wind chill values bottoming out near zero late tonight into early Tuesday morning.
- Stronger, more focused areas of lake effect snow showers may bring periods of reduced visibility though this evening.
- Tuesday remains unseasonable cold with highs in the 20s.
Temperatures moderate through the end of the week, along with additional low chances for precipitation.
DISCUSSION
The main forecast concern through this evening resides with widely scattered snow showers, continued gusty winds, and falling temperatures. Wind gusts of 35-45 mph will linger through this evening so opted to leave the Wind Advisory going. As southwest winds become more westerly and northwesterly through tonight, cold air advection continues to stream into the area. This incoming colder air has already allowed for widely scattered snow showers to develop this afternoon. Expect these trends to continue into the evening hours. It is not out of the question that more robust snow showers may be capable of significantly reducing visibilities. We should start to see the coverage of snow showers wane as we lose daytime heating. As the colder air moves in, temperatures fall into the teens and wind chill values bottom out around zero degrees. A few spots across the Thumb may see wind chill values fall below zero, where gustier northwest winds linger overnight.
Overnight into Tuesday morning, the main surface low departs the region. With lingering lake effect snow downwind of Lake Michigan, we may have to deal with a few areas of lingering snow showers into Tuesday morning. While the longwave trough departs the region, the lingering pocket of cold air aloft will keep daytime heights in the 20s on Tuesday with high-based flurries or very light snow showers possible.
The middle/end of the week temperatures will moderate as the pocket of cold air exits to the northeast. Daytime highs will steadily warm from mid/upper 30s on Wednesday to 40s/50s Thursday and Friday. We will be keeping an eye on a few shortwaves that dig southeast across the Great Lakes region during this stretch. Guidance is not in good agreement with the strength and or timing of these shortwaves (and no surprise) this lack of agreement worsens through the weekend and into early next week. Thus, we have low-end PoPs in the forecast almost every day.
MARINE
Strong low pressure (988 mb) now exiting northern Lake Huron/Georgian Bay this afternoon. Strong southwest gales (40+ knots) have been observed across central and southern Lake Huron, as well as Lake St. Clair and Lake Erie. The gale warning remains in great shape, as winds shift northwest in the wake of the low. Very cold airmass for Mid March standards to move over the Lake Huron this evening/tonight, as 850 mb temps lower into the negative low to mid 20s. This will assure deep mixing to support the gale force wind gusts overnight. The thermal through axis to exit east after midnight. This bitter cold airmass will be conducive to heavy freezing spray into Tuesday before winds diminish sufficiently and airmass begins to modify.
High pressure to slide through the Ohio Valley tomorrow, with the pronounced surface ridging extending north by evening. This is provide a lull in winds, under 20 knots. However, moderate southwest winds to return on Wednesday as return flow around the high kicks in, and low pressure tracks through northern Ontario Wednesday night.
PREV DISCUSSION
Issued at 119 PM EDT Mon Mar 16 2026
AVIATION...
Synoptic lift due to sharp absolute vorticity advection will cause uptick in light flurries or snow showers to begin the taf period.
There is support for this on regional reflectivity mosaic. After 21z, deepening cold air advection in the 4.5 to 7.5 kft agl layer post surface cold front will allow for greater supersaturation with respect to ice through the dendritic growth zone. Snow shower intensity is expected to increase with an isolated snow squall possible between 21-01z. Low confidence exists on coverage. If a snow squall does impact the terminal brief LIFR TO VLIFR conditions will be possible due to strong winds impacting the region. Winds will veer westerly to northwesterly after 21z. Strong winds to continue this evening. Diurnal snow showers will be possible during the daylight hours Tuesday. Low confidence in coverage due to shallow nature of saturation.
For DTW...Snow showers are expected to develop this afternoon. Snow squalls will be possible between 21-01z.
DTW THRESHOLD PROBABILITIES...
* High in ceilings aob 5000 feet..
* High in precip type as snow this afternoon.
* High in crosswind exceedence this evening and early tonight.
DTX WATCHES/WARNINGS/ADVISORIES
MI...Wind Advisory until midnight EDT tonight for MIZ047>049-053>055- 060>063-068>070-075-076-082-083.
Lake Huron...Gale Warning until 11 AM EDT Tuesday for LHZ361>363-421-422-441>443- 462>464.
Heavy Freezing Spray Warning until 5 PM EDT Tuesday for LHZ361>363- 421-441>443-462>464.
Low Water Advisory until 4 AM EDT Tuesday for LHZ422.
Lake St Clair...Gale Warning until 11 AM EDT Tuesday for LCZ460.
Michigan waters of Lake Erie...Gale Warning until 11 AM EDT Tuesday for LEZ444.
Low Water Advisory until 8 AM EDT Tuesday for LEZ444.
Area Forecast Discussion National Weather Service Detroit/Pontiac MI 332 PM EDT Mon Mar 16 2026
KEY MESSAGES
- Wind Advisory remains in effect through this evening. Temperatures fall into the teens and lingering gusty winds results in wind chill values bottoming out near zero late tonight into early Tuesday morning.
- Stronger, more focused areas of lake effect snow showers may bring periods of reduced visibility though this evening.
- Tuesday remains unseasonable cold with highs in the 20s.
Temperatures moderate through the end of the week, along with additional low chances for precipitation.
DISCUSSION
The main forecast concern through this evening resides with widely scattered snow showers, continued gusty winds, and falling temperatures. Wind gusts of 35-45 mph will linger through this evening so opted to leave the Wind Advisory going. As southwest winds become more westerly and northwesterly through tonight, cold air advection continues to stream into the area. This incoming colder air has already allowed for widely scattered snow showers to develop this afternoon. Expect these trends to continue into the evening hours. It is not out of the question that more robust snow showers may be capable of significantly reducing visibilities. We should start to see the coverage of snow showers wane as we lose daytime heating. As the colder air moves in, temperatures fall into the teens and wind chill values bottom out around zero degrees. A few spots across the Thumb may see wind chill values fall below zero, where gustier northwest winds linger overnight.
Overnight into Tuesday morning, the main surface low departs the region. With lingering lake effect snow downwind of Lake Michigan, we may have to deal with a few areas of lingering snow showers into Tuesday morning. While the longwave trough departs the region, the lingering pocket of cold air aloft will keep daytime heights in the 20s on Tuesday with high-based flurries or very light snow showers possible.
The middle/end of the week temperatures will moderate as the pocket of cold air exits to the northeast. Daytime highs will steadily warm from mid/upper 30s on Wednesday to 40s/50s Thursday and Friday. We will be keeping an eye on a few shortwaves that dig southeast across the Great Lakes region during this stretch. Guidance is not in good agreement with the strength and or timing of these shortwaves (and no surprise) this lack of agreement worsens through the weekend and into early next week. Thus, we have low-end PoPs in the forecast almost every day.
MARINE
Strong low pressure (988 mb) now exiting northern Lake Huron/Georgian Bay this afternoon. Strong southwest gales (40+ knots) have been observed across central and southern Lake Huron, as well as Lake St. Clair and Lake Erie. The gale warning remains in great shape, as winds shift northwest in the wake of the low. Very cold airmass for Mid March standards to move over the Lake Huron this evening/tonight, as 850 mb temps lower into the negative low to mid 20s. This will assure deep mixing to support the gale force wind gusts overnight. The thermal through axis to exit east after midnight. This bitter cold airmass will be conducive to heavy freezing spray into Tuesday before winds diminish sufficiently and airmass begins to modify.
High pressure to slide through the Ohio Valley tomorrow, with the pronounced surface ridging extending north by evening. This is provide a lull in winds, under 20 knots. However, moderate southwest winds to return on Wednesday as return flow around the high kicks in, and low pressure tracks through northern Ontario Wednesday night.
PREV DISCUSSION
Issued at 119 PM EDT Mon Mar 16 2026
AVIATION...
Synoptic lift due to sharp absolute vorticity advection will cause uptick in light flurries or snow showers to begin the taf period.
There is support for this on regional reflectivity mosaic. After 21z, deepening cold air advection in the 4.5 to 7.5 kft agl layer post surface cold front will allow for greater supersaturation with respect to ice through the dendritic growth zone. Snow shower intensity is expected to increase with an isolated snow squall possible between 21-01z. Low confidence exists on coverage. If a snow squall does impact the terminal brief LIFR TO VLIFR conditions will be possible due to strong winds impacting the region. Winds will veer westerly to northwesterly after 21z. Strong winds to continue this evening. Diurnal snow showers will be possible during the daylight hours Tuesday. Low confidence in coverage due to shallow nature of saturation.
For DTW...Snow showers are expected to develop this afternoon. Snow squalls will be possible between 21-01z.
DTW THRESHOLD PROBABILITIES...
* High in ceilings aob 5000 feet..
* High in precip type as snow this afternoon.
* High in crosswind exceedence this evening and early tonight.
DTX WATCHES/WARNINGS/ADVISORIES
MI...Wind Advisory until midnight EDT tonight for MIZ047>049-053>055- 060>063-068>070-075-076-082-083.
Lake Huron...Gale Warning until 11 AM EDT Tuesday for LHZ361>363-421-422-441>443- 462>464.
Heavy Freezing Spray Warning until 5 PM EDT Tuesday for LHZ361>363- 421-441>443-462>464.
Low Water Advisory until 4 AM EDT Tuesday for LHZ422.
Lake St Clair...Gale Warning until 11 AM EDT Tuesday for LCZ460.
Michigan waters of Lake Erie...Gale Warning until 11 AM EDT Tuesday for LEZ444.
Low Water Advisory until 8 AM EDT Tuesday for LEZ444.
Wind History for Fort Gratiot, MI
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Link to 1 hour of 5 minute data for KFNT
Terminal Aerodrome Forecast (TAF) for KFNT
Wind History Graph: FNT
(wind in knots)
GEOS Local Image of great lakes
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