Tuesday, January26, 2021
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Marine Weather and Tides
Snover, MI

Version 3.4
NOTICE
1/26/2021 -- The West Coast Satellite images havd been updated. They now use GEOS-17.
1/1/2021 -- The 7 day forecast are now working well. Thank you NOAA for your support.

Sunrise 7:48AMSunset 5:36PM Tuesday January 26, 2021 4:36 PM EST (21:36 UTC) Moonrise 3:23PMMoonset 6:29AM Illumination 98% Phase: Waxing Gibbous; Moon at 13 days in cycle
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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LHZ442 Harbor Beach To Port Sanilac Mi- 359 Pm Est Tue Jan 26 2021
.small craft advisory in effect through late Wednesday night...
Tonight..North winds 20 to 25 knots diminishing to 15 to 20 knots after midnight. Snow in the evening, then a chance of snow after midnight. Waves 6 to 9 feet. Waves occasionally around 12 feet.
Wednesday..Northwest winds 10 to 15 knots increasing to 15 to 20 knots in the late morning and afternoon. Mostly cloudy. A chance of snow in the morning, then a slight chance of snow in the afternoon. Waves 4 to 6 feet. Waves occasionally around 8 feet.
Wednesday night..Northwest winds 15 to 20 knots increasing to 20 to 25 knots in the late evening and early morning, then diminishing to 15 to 20 knots after midnight. Mostly cloudy in the evening becoming partly cloudy. Waves 5 to 7 feet. Waves occasionally around 10 feet.
Thursday..Northwest winds 15 to 20 knots. Partly cloudy in the morning becoming mostly cloudy. Waves 4 to 6 feet. Waves occasionally around 8 feet. Wave heights are for ice free areas. SEe lake huron open lake forecast for days 3 through 5.
LHZ442 Expires:202101270415;;537063 FZUS53 KDTX 262059 NSHDTX Nearshore Marine Forecast for Michigan National Weather Service Detroit/Pontiac MI 359 PM EST Tue Jan 26 2021 For waters within five nautical miles of shore 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. LHZ442-270415-


7 Day Forecast for Marine Location Near Snover, MI
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location: 43.42, -83     debug


Area Discussion for - Detroit/Pontiac, MI
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FXUS63 KDTX 262024 AFDDTX

Area Forecast Discussion National Weather Service Detroit/Pontiac MI 324 PM EST Tue Jan 26 2021

DISCUSSION.

A weakening deformation axis will have one last gasp this afternoon as mid level circulation peels east across the forecast area. Will be able to expire/cancel the Winter Weather Advisory at 4 pm in all areas except the Thumb where lake enhancement will couple with the synoptic scale lift to allow light to locally moderate snow to persist into parts of the evening hours. Otherwise, snow will wind down in other areas north of M-59 late this afternoon with a light wintry mix further south changing to light snow showers before ending. By late tonight into Wednesday, snow shower activity will be limited to areas immediately along the Lake Huron shoreline over the Thumb.

Thereafter, colder and drier conditions will set up for the rest of the week as arctic high pressure shifts southeast across Ontario. While the core of the coldest air will remain north/northeast of the region this week, temperatures will settle back into the 20s for high temperatures this week (lower 20s Thursday and Friday) with low temperatures in the single digits to lower teens. These will be the coldest conditions this season in what has been a relatively mild winter to date. A southern stream shortwave over the southwest CONUS today will shear east and remain south of the region during the mid week period as it skirts along the southern periphery of this the high pressure.

This high will shift east into Quebec this weekend with its exact position influencing, to a degree, the track of the next winter storm system slated to encroach on the area late this weekend into early next week. This system will develop as a strong Pacific shortwave moves onshore over California late in the week and then crosses the southern Rockies on Saturday inducing lee-cyclogenesis. This system will then be shunted eastward as it tries to lift into the central Great Lakes. Much like the current system, the northward extent of this next storm system is very much in question at this point in the forecast. At this time, the best chance of snow with this system appears to be on Sunday with southern portions of the forecast area most prone to accumulations. Temperatures will also moderate with the approach of this system as highs reach the mid 30s by Sunday and Monday.

MARINE.

Northeast wind over Lake Huron will diminish during the overnight hours with a gradual shift toward the northwest. Gusts drop below 30 knots this evening then below 20 knots late tonight with prevailing speeds slowing into the 10-15 knot range. Will maintain the Small Craft Advisory for wave heights over Outer Saginaw Bay and the southern Huron nearshore tonight. Winds trend higher again Wednesday evening into Thursday as arctic air leads to increased mixing depths and stronger gust potential. Occasional waves peak around 7 feet along the southern Huron lakeshore late Wednesday night, thus the Small Craft Advisories remain in effect until early Thursday morning. Wind and wave action tapers-off Thursday afternoon as the surface pressure gradient relaxes into Friday and Saturday with high pressure shifting east into the Central Great Lakes from Chicago.

PREV DISCUSSION. Issued at 1223 PM EST Tue Jan 26 2021

AVIATION .

Snow continues over mbS early this afternoon as a dry slot has begun to work in across the rest of the TAF sites. Some light snow or light freezing drizzle still can't be ruled out through the first half of the afternoon despite the dry slot so will keep a mention in current forecast. The back edge of the precip shield pivots back across SE MI after ~19Z keeping light snow over the terminals into this evening (snow is expected to begin tapering off around 00Z). Ceilings won't begin to lift out of low MVFR/high IFR until late tonight as the low pushes further east away from the region.

For DTW . Drier air has worked in over the area but scattered pockets of light snow/freezing drizzle remain over southern MI which will keep some potential for a pocket to move over the terminal. Light snow is expected to redevelop after 19-20Z before tapering off around 00-01Z.

DTW THRESHOLD PROBABILITIES .

* High for ceiling below 5000 feet through late tonight.

* High for snow through this evening.

* Moderate for freezing drizzle early afternoon.

* Low for ceilings or visibilities to drop below 200ft or 1/2SM respectively.

DTX WATCHES/WARNINGS/ADVISORIES. MI . Winter Weather Advisory until 11 PM EST this evening for MIZ049-054- 055-062-063.

Lake Huron . Small Craft Advisory until 5 AM EST Thursday for LHZ421-441>443.

Lake St Clair . NONE. Michigan waters of Lake Erie . NONE.

DISCUSSION . DG MARINE . KK AVIATION . KDK

You can obtain your latest National Weather Service forecasts online at www.weather.gov/detroit.


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
PSCM4 24 mi97 min NNE 15 G 20 30°F 1026.8 hPa (+1.1)
HRBM4 - 9075014 - Harbor Beach, MI 35 mi97 min NNE 20 G 23 30°F 34°F1008.3 hPa (-0.0)28°F
KP58 43 mi102 min NE 20 31°F 1010.1 hPa27°F
MBRM4 - 9014090 - Mouth of the Black River, MI 44 mi97 min 31°F 1006.3 hPa (+1.2)
SBLM4 - Saginaw Bay Light #1, MI 47 mi97 min N 28 G 31 27°F 1009.8 hPa (+0.7)

Wind History for Harbor Beach, MI
(wind in knots)    EDIT      (on/off)   Help
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N10
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SW8
G11
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G10
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G16
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G16
S9
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G13
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G15

Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Caro, Tuscola Area Airport, MI24 mi42 minN 190.75 miLight Snow and Breezy30°F28°F93%1010.2 hPa

Link to 5 minute data for KCFS

Wind History from CFS (wind in knots)
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Last 24hrNE5NE5NE4NE4NE4--NE5NE5NE3NE8NE6NE11NE6NE5NE7NE8NE10
G16
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G14
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N7
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N8N9
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G22
1 day agoSE4S5S3S4S4CalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmNE3NE3NE4
2 days agoW4CalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmSE3SE4SE5SE6SE7SE6SE9SE9SE8SE7

Tide / Current Tables for
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Tide / Current Tables for
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NOTE: This section has been updated as of 1/26/2021. If the image you are expecting is not showing, please let me know. You may use the EDIT function to update your location.
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The information on this web site has not been checked for accuracy. It is for entertainment purposes only and should be independently verified before using for any other reason. There are five sources. 1) Documents and manuals from a variety of sources. These have not been checked for accuracy and in many cases have not even been read by anyone associated with L-36.com. I have no idea of they are useful or accurate, I leave that to the reader. 2) Articles others have written and submitted. If you have questions on these, please contact the author. 3) Articles that represent my personal opinions. These are intended to promote thought and for entertainment. These are not intended to be fact, they are my opinions. 4) Small programs that generate result presented on a web page. Like any computer program, these may and in some cases do have errors. Almost all of these also make simplifying assumptions so they are not totally accurate even if there are no errors. Please verify all results. 5) Weather information is from numerous of sources and is presented automatically. It is not checked for accuracy either by anyone at L-36.com or by the source which is typically the US Government. See the NOAA web site for their disclaimer. Finally, tide and current data on this site is from 2007 and 2008 data bases, which may contain even older data. Changes in harbors due to building or dredging change tides and currents and for that reason many of the locations presented are no longer supported by newer data bases. For example, there is very little tidal current data in newer data bases so current data is likely wrong to some extent. This data is NOT FOR NAVIGATION. See the XTide disclaimer for details. In addition, tide and current are influenced by storms, river flow, and other factors beyond the ability of any predictive program.