Thursday, April2, 2020
Privacy Policy
L-36.com


Marine Weather and Tides
Village of Grosse Pointe Shores, MI

Version 3.4
NOTICE
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 7:09AMSunset 8:00PM Thursday April 2, 2020 6:27 AM EDT (10:27 UTC) Moonrise 12:24PMMoonset 3:03AM Illumination 69% Phase: Waxing Gibbous; Moon at 9 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
    EDIT      (on/off)   Help
LCZ422 /o.exp.kdtx.ma.w.0067.000000t0000z-191230t1300z/ 754 Am Est Mon Dec 30 2019
.the special marine warning will expire at 800 am est... The affected areas were... St. Clair river... Lake st. Clair... The showers have moved out of the area. Lat...lon 4289 8247 4276 8247 4261 8252 4255 8259 4256 8264 4238 8282 4236 8286 4239 8294 4259 8285 4266 8285 4272 8269 4270 8261 4265 8259 4264 8256 4265 8255 4276 8251 4289 8252 4302 8244 4297 8241 time...mot...loc 1254z 216deg 43kt 4352 8232 4307 8173
LCZ422 Expires:201912301304;;588067 FZUS73 KDTX 301254 MWSDTX Marine Weather Statement National Weather Service Detroit/Pontiac MI 754 AM EST Mon Dec 30 2019 LCZ422-460-301304-


7 Day Forecast for Marine Location Near Village of Grosse Pointe Shores, MI
   Hourly   EDIT   Help
location: 42.46, -82.67     debug


Area Discussion for - Detroit/Pontiac, MI
      (on/off)   Help   NOTE: mouseover dotted underlined text for definition
FXUS63 KDTX 021018 AFDDTX

Area Forecast Discussion National Weather Service Detroit/Pontiac MI 618 AM EDT Thu Apr 2 2020

AVIATION.

A ridge of high pressure will build over the area today and provide VFR conditions with mainly clear skies. Light winds will mix out to northwest 5-10 knots by midday and likely veer to northeast late in the day.

DTW THRESHOLD PROBABILITIES .

* None.

PREV DISCUSSION. Issued at 349 AM EDT Thu Apr 2 2020

DISCUSSION .

A pattern shift is finally underway early this morning as this week's persistent midlevel troughing has shifted east. Deep layer subsidence ensues today owing to the trough's departure and to simultaneous ridge amplification just upstream. After a chilly morning, abundant sunshine today helps boost temps well into the 50s. Light winds from the north keep the immediate Lake Huron shoreline a bit cooler as is typical for this time of year. Expect another chilly night tonight with clear skies and light to calm surface wind - lows in the upper 20s to lower 30s. A nearly identical sunny and warm day is in store for Friday as the surface ridge moves overhead. Clouds will then be on the increase late Friday night which keeps temps from cratering as efficiently.

A potent lobe of vorticity rotating around the upper low over Alberta will move through the upper Midwest on Friday night, dampening the ridge over the Great Lakes. The associated cold front will lose upper support as the wave lifts northward into northwestern Ontario. Though the front weakens substantially before it reaches SE Michigan, it will pool moisture out ahead of it that will result in a cloudy day Saturday with a chance for some showers by the evening/overnight. Minimal temperature advection occurs with frontal passage and the mild air mass in place stays largely intact. Above average temps continue through the weekend and into the middle of next week.

A split flow pattern emerges Sunday with surface high pressure drifting across the region to keep Sunday and most of Monday dry. A series of shortwaves in the quasi-zonal flow are then progged to track overhead which brings a chance for showers and possibly thunderstorms during the middle of the week. A stronger wave passes through on Wednesday into Thursday which looks to drag some cooler Canadian air back in, ending our streak of above average temperatures.

MARINE .

High pressure will maintain a light northerly component flow through Friday before winds begin to veer to the south Friday night and Saturday while remaining light. A cold front pushing through Saturday evening will bring a narrow band of showers with it before winds back to the north. All in all, the surface gradient will maintain basically light winds into next week.

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

AVIATION . DG DISCUSSION . TF MARINE . DRC

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


Weather Reporting Stations
   EDIT       (on/off)   Help   NOTE: Click on distance to see the station location on a map
Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
CLSM4 - St. Clair Shores, MI 11 mi88 min W 6 G 8.9 39°F 1018.6 hPa (-0.4)
AGCM4 13 mi58 min 36°F 38°F1017.6 hPa
MBRM4 - 9014090 - Mouth of the Black River, MI 38 mi58 min 38°F 1017.3 hPa
FTGM4 - 9014098 - Fort Gratiot, MI 40 mi58 min WNW 8.9 G 12 38°F 1017.1 hPa31°F

Wind History for Fort Gratiot, MI
(wind in knots)    EDIT      (on/off)   Help
7
AM
8
AM
9
AM
10
AM
11
AM
12
PM
1
PM
2
PM
3
PM
4
PM
5
PM
6
PM
7
PM
8
PM
9
PM
10
PM
11
PM
12
AM
1
AM
2
AM
3
AM
4
AM
5
AM
6
AM
Last
24hr
N9
N9
N5
G10
N10
N9
N9
N8
N10
G13
N9
N8
N8
N10
N8
N6
G9
N6
G10
N6
NW5
W3
W2
W2
W4
W7
NW9
G13
NW7
G10
1 day
ago
N14
N16
NE16
N10
N10
N14
N12
N13
N14
N14
G17
N15
N14
N11
N9
N6
N6
N4
N4
N6
N6
N7
N8
N7
N8
G11
2 days
ago
W9
G23
W11
G15
W14
G19
W10
G20
W6
G13
NW8
G11
NW7
G12
W8
G14
NW6
G10
NW7
G12
E6
E6
NE3
NE5
N5
N6
N10
G13
NW3
G6
NW4
NW6
G9
NW6
G9
N6
G11
N9
N18

Airport Reports
    EDIT      (on/off)   Help   Click EDIT to display multiple airports. Follow links for more data.
AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Selfridge Air National Guard Base, MI14 mi32 minWNW 610.00 miFair37°F36°F100%1018.8 hPa
Coleman A Young Municipal Airport, MI19 mi35 minNW 510.00 miFair38°F33°F83%1019 hPa

Link to 5 minute data for KMTC

Wind History from MTC (wind in knots)
7
AM
8
AM
9
AM
10
AM
11
AM
12
PM
1
PM
2
PM
3
PM
4
PM
5
PM
6
PM
7
PM
8
PM
9
PM
10
PM
11
PM
12
AM
1
AM
2
AM
3
AM
4
AM
5
AM
6
AM
Last 24hrN7N6N9NE10N9N8N8N10N9N8NW7N9NW8NW5W5NW3CalmNW4W6W6W5W4W4NW6
1 day agoN6N8NE9NE8N9NE66E7NE7NE5NE5NE7E6--N7N8NE8NE6NE5N5N4N5N6N6
2 days agoW13
G19
SW10
G18
W10
G19
W14
G20
W11
G23
W13
G19
W11W14
G19
W16
G20
W8W11
G16
W10W7N6NW9NW5E7E5CalmCalmN9N7N7N7

Tide / Current Tables for
   EDIT   Weekend mode (on/off)   (on/off)   Help
Tide / Current Tables for
   EDIT      (on/off)   Help
Weather Map
       (on/off)   Help Weather Map
wmap_A
GEOS Local Image of GreatLakes    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
Wind Forecast for Detroit/Pontiac, MI (6,6,7,8)
      (on/off)   Help

Ground Weather Radar Station Detroit, MI
   (on/off)   Help
weather_mapweather_map weather_map

Ad by Google

Cookie Policy:
This website uses cookies to save your settings. No personal information is saved. I do not collect statistics on your visit. You can disable cookies in your browser if you like but it is not recommended for this site. I do not sell cookies. Go to a bakery for that. In fact I do not sell anything. To disable cookies from L-36.com, please refer to the Help button in your browser.
Privacy Policy:
I do not sell or share any user data or anything else for that matter. The only personal information I save is in the site log which has a line for each page view which includes the IP address your browser sends in the header as well as which page you requested. I use this to block hackers and other bad actors. I do not use this raw data to create profiles on users. I periodically delete the log files. If you are subject to CCPA, Google ads on this site will not be based on your past behavior so you will likely not see an ad for a lawn mower just because you looked for one at a big box website. I do not believe this site is subject to CCPA but I am doing what I can to follow the guidelines anyway.
Disclaimer:
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.