Friday, September25, 2020
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L-36.com

Marine Weather and Tides
Luna Pier, MI

Version 3.4
NOTICE
8/26/2020 The 7 day forecast is taking about 5 seconds to load but it will eventually load. NOAA is still working on it.
8/18/2020 NOAA continues to have trouble. Wind guest will occasionally be left off graphs. I am working with NOAA to resolve the issue.
12/16/2019 NOAA is having trouble with requests that include wind gusts. I am posting graphs without wind gusts until it gets fixed.
10/9/2019 Updated the Marine Zones.
9/4/2019 Fixed the weather maps due to NOAA moving them.
7/25/2019 New feature in the Airports section gives a link to 5 minute updates for data reports.

Sunrise 7:23AMSunset 7:26PM Friday September 25, 2020 8:29 AM EDT (12:29 UTC) Moonrise 3:36PMMoonset 12:00AM Illumination 58% Phase: First Quarter Moon; Moon at 8 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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LEZ142 Lake Erie Nearshore Waters From Maumee Bay To Reno Beach Oh- Lake Erie Nearshore Waters From Reno Beach To The Islands Oh- 946 Pm Edt Thu Sep 24 2020
Overnight..Southwest winds 10 knots or less. Clear. Waves 1 foot or less.
Friday..Southwest winds 10 knots or less becoming east. Sunny. Waves 1 foot or less.
Friday night..East winds 5 to 10 knots becoming south. Mostly clear. Waves 1 foot or less.
Saturday..Southwest winds 5 to 10 knots. Mostly Sunny. Waves 1 foot or less. SEe lake erie open lakes forecast for Sunday through Tuesday. The water temperature off toledo is 64 degrees, off cleveland 68 degrees, and off erie 67 degrees.
LEZ142 Expires:202009250830;;317281 FZUS51 KCLE 250146 NSHCLE Nearshore Marine Forecast National Weather Service Cleveland OH 946 PM EDT Thu Sep 24 2020 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. LEZ142-143-250830-


7 Day Forecast for Marine Location Near Luna Pier, MI
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location: 41.78, -83.35     debug


Area Discussion for - Detroit/Pontiac, MI
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FXUS63 KDTX 251122 AFDDTX

Area Forecast Discussion National Weather Service Detroit/Pontiac MI 722 AM EDT Fri Sep 25 2020

AVIATION.

Area of dense fog will remain in the vicinity of mbS through mid morning, before gradually lifting as daytime heating ensures. Elsewhere, MVFR level restrictions in shallow fog remains possible through 13z. Otherwise, extended stretch of dry and stable conditions maintained under weak surface ridging ensures prevailing VFR with mostly clear skies this TAF period. Light/variable winds emerging from the south-southeast by late morning, reaching near 10 knots at times this afternoon.

DTW THRESHOLD PROBABILITIES.

* None.

PREV DISCUSSION. Issued at 400 AM EDT Fri Sep 25 2020

DISCUSSION .

Persistent surface ridge with ridging building in aloft will keep the region dry once again today. Split flow pattern is deflecting the active northern stream of the jet while a shortwave over the Midwest Thursday gets directed southward into the Ohio Valley. No sensible weather will come with this upper low as it drifts near southern MI as there is just too much subsidence and dry air to contend with. Temperatures will again rise to around 80 today with the mid level cold pool associated with the shortwave holding off the better warm air advection til Saturday.

Westerlies ramp up heading into the weekend with a series of jet maxes around 130 knots coming ashore the Pacific NW. At first this will just lead to a more progressive pattern with a lead shortwave tracking across southern Canada bringing a zonal flow pattern to region while a thermal ridge (~15C at 850mb) folds into the Great Lakes. Increasing southwesterly flow ahead of the trough holding to the west will aide in warm air advection allowing temps to rise into the low 80s Saturday. The front looks to stall and wash out over northern lower before getting picked up by the next strong shortwave saturday night into Sunday. Potent low level jet flaring up to our west Saturday night will bringing even warmer air with 850mb temps possibly exceeding 20C. This will lead to a warm and muggy night while still remaining precip free as the bulk of the column remains dry with PWATs just creeping up over an inch due mostly to low level moisture.

Sunday is trending drier through the forecast becomes a bit more questionable as the cold front is approaching western MI. Front is aligned parallel to the flow leading to slow progress east initially. the longwave trough is deepening over the Plains at this time stalling the progressiveness of the feature through the day with the main axis of energy holding to the west. Best chance of showers would be over western and central MI with some potential for activity to make it east but recent trend, noted even moreso with latest EURO is to keep SE MI dry all day Sunday with the main SW to NE oriented ribbon of fgen and jet energy not making it east til Monday and Tuesday. Continued deepening of the trough into next week presents a possible stretch of wet weather through this time as the flow remains parallel to the boundary which could lead to training showers and possible embedded thunderstorms. This will bear watching as the upper level wave pattern is very energetic with many potential shortwaves rotating through the trough. Models do agree that this trough will linger through next week with 850mb temps in the single digits and maybe near 0C by the end of the week. This will set up a notable cool stretch with temps below normal in the 50s and 60s.

MARINE .

The stationary front responsible for previous showers over northern Lake Huron will exit toward the Canadian side of the Soo Locks today, transitioning into a warm front. Rain coverage dwindles this afternoon as surface high pressure becomes a bit more organized to east and the elevated portion of the stable airmass is forced out of the central Great Lakes. Winds back southeasterly later today with low speeds. An inbound cold front will bring gusty winds and perhaps a few thunderstorms over Lake Huron on Saturday. Small Craft Advisories may be needed late Saturday night into Sunday morning with southwest gusts in excess of 22 knots from strong crossing jet winds crossing, just above the surface. Residual influence of the associated low pressure system could trigger marine hazards on Tuesday as the tightened surface pressure gradient persists, promoting an extended period of heightened waves and dreary conditions for most of next week.

DTX WATCHES/WARNINGS/ADVISORIES. MI . NONE. Lake Huron . NONE. Lake St Clair . NONE. Michigan waters of Lake Erie . NONE.

AVIATION . MR DISCUSSION . DRK MARINE . KK

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
45165 7 mi30 min SSE 5.8 G 5.8 60°F 65°F
TWCO1 7 mi30 min S 6 G 7 59°F 65°F55°F
THRO1 - 9063085 - Toledo, OH 9 mi60 min S 1.9 G 2.9 58°F 1016 hPa50°F
CMPO1 24 mi120 min SSW 2.9 G 4.1 56°F
MRHO1 - 9063079 - Marblehead, OH 37 mi60 min SSE 1.9 G 4.1 59°F 66°F1016.2 hPa54°F

Wind History for Toledo, OH
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Monroe, Custer Airport, MI12 mi35 minN 07.00 miFair47°F45°F94%1017.3 hPa
Lambertville, Toledo Suburban Airport, MI17 mi35 minN 07.00 miFair50°F49°F97%1017.3 hPa
Toledo - Toledo Executive Airport, OH17 mi37 minS 38.00 miFair53°F50°F89%1017.3 hPa
Detroit/Grosse Ile, Grosse Ile Airport, MI24 mi35 minN 00.75 miFog/Mist54°F53°F97%1016.9 hPa

Link to 5 minute data for KTTF

Wind History from TTF (wind in knots)
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Last 24hrW3W8W6W7W8
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W7SW5CalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalm
1 day agoCalmW4W3NW5W8W9W6
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W7W7W4CalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmW3
2 days agoCalmW5W7W7W7S3CalmSE5S6SE4CalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalm

Tide / Current Tables for
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Tide / Current Tables for
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Weather Map
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wmap_A
GEOS Local Image of    EDIT
NOTE: East coast views moved to GEOS-16. They are experimental and not well supported by NOAA so they may not be correct so be warned. This change required redoing a large amount of the GOES code. If the image you are expecting is not showing, please let me know. You may need to use the EDIT function to update your location.
Link to Loop

Other links: Northern Pacific     Contential US     Full GOES-East
Ground Weather Radar Station Detroit, MI
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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.