Sunday, July22, 2018 L-36.com


Marine Weather and Tides
Grosse Pointe, MI

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Sunrise 6:13AMSunset 9:02PM Sunday July 22, 2018 8:27 PM EDT (00:27 UTC) Moonrise 3:51PMMoonset 1:22AM Illumination 76% Phase: Waxing Gibbous; Moon at 10 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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LCZ460 Lake St Clair- 1002 Am Edt Sun Jul 22 2018
Rest of today..Northeast winds 10 to 15 knots. Cloudy with a chance of light showers. Waves 1 to 3 feet.
Tonight..North winds 10 to 15 knots diminishing to 5 to 10 knots after midnight. Mostly cloudy. Waves 2 feet or less.
Monday..North winds 5 to 10 knots in the morning becoming light and variable. Partly Sunny with a chance of light showers. Waves 2 feet or less.
Monday night..Light and variable winds. Partly cloudy. A chance of light showers early in the evening. Waves 2 feet or less.
Tuesday..Light and variable winds. Partly cloudy. A chance of light showers in the afternoon and evening. Waves nearly calm.
Wednesday..Light and variable winds. Partly cloudy. Waves 2 feet or less.
Thursday..West winds 5 to 10 knots. Mostly clear. Waves 2 feet or less.
LCZ460 Expires:201807222000;;876047 FZUS63 KDTX 221402 GLFSC Lake St Clair Forecast National Weather Service Detroit/Pontiac MI 1002 AM EDT SUN JUL 22 2018 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...Broad low pressure, 29.70 inches, will continue drifting southeastward into the northern Ohio Valley today. A secondary area of low pressure, also 29.70 inches, will move northwestward from the Mid-Atlantic region towards Lake Huron and gradually weaken today and into Monday. Increasing pressure, building to 29.90 inches, will attempt to become established across the Great Lakes for the midweek period. LCZ460-222000-

7 Day Forecast for Marine Location Near Grosse Pointe, MI
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location: 42.38, -82.9     debug


Area Discussion for - Detroit/Pontiac, MI
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Fxus63 kdtx 222247
afddtx
area forecast discussion
national weather service detroit pontiac mi
647 pm edt Sun jul 22 2018

Aviation
The focus of the forcing currently driving the showers across the
area will shift to the west of the terminals during the evening,
with lingering showers more probable at fnt and mbs early this
evening. Some thinning of the clouds this afternoon allowed just
enough mixing to erode a significant amount of lower clouds. There
will be a developing inversion during the night courtesy of some
subtle low level cooling arriving from the north-northeast. This
cooling is expected to result in an expansion redevelopment of MVFR
based stratus, likely to remain prevalent through Mon morning.

For dtw... Lower clouds have increased in coverage to the east of
metro detroit early this evening. While they are expected to expand
into dtw, timing at this point remains somewhat uncertain. Daytime
mixing will lift cloud bases Mon afternoon. Diurnally enhanced
showers will develop during the afternoon with a sfc trough axis
overhead. The better instability reservoir is expected to hold just
east of metro, so the chances of tsra at dtw are low; however the
eastern portion of the detroit airspace has a better tsra potential.

Dtw threshold probabilities
* moderate in ceilings below 5000 feet tonight and Monday.

* low in thunderstorms Monday afternoon evening.

Prev discussion
Issued at 250 pm edt Sun jul 22 2018
discussion...

shower activity will continue into this evening as center of low
pressure pivots back west towards the area. While coverage will
decrease somewhat with the loss of daytime heating, lift forcing
from the encroaching system will maintain decent coverage into the
evening, especially over the thumb saginaw valley where the
associated vorticity maximum will track. Overall activity will then
wind down overnight as the low begins to dissipate and the early
morning instability minimum approaches.

Additional widely scattered showers and perhaps an isolated
thunderstorms can be expected on Monday as inverted low level
troughing from parent low pressure south of the ohio valley remains
in place even once this secondary low pressure dissipates. This
feature, as well as broad upper level troughing, remains in place on
into Tuesday so additional scattered to isolated showers or storms
remain possible. Precipitation chances will be most pronounced
during the afternoon early evening during peak heating instability.

Coverage, however, is not expected to be any more than 30 percent or
so even at its peak.

With activity more cellular in nature Monday and Tuesday, skies will
be partly cloudy at times as opposed to the cloudy mostly cloudy
conditions of this weekend. This, along with an overall moderation
in the airmass associated with upper troughing over the area, will
lead to warmer temperatures back into the upper 70s to around 80 on
Monday and 80 to 85 on Tuesday. Low temperatures will also edge up
as overall low level airmass remains somewhat humid with dew points
in the mid to upper 60s. This will lead to overnight temperatures
holding well up in the 60s.

Uncertainly remains in where the trough axis is by the middle of
the week, however most of the area looks to stay dry. The next
chance for any precipitation is currently forecasted to come
Thursday and Friday as weak low pressure skirts across the northern
great lakes region. Moisture looks to be limited and have only
included slight chances during that timeframe. This low does does
look to bring some slightly cooler air behind an associated boundary
to the end of the week after highs top off in the middle 80s on
Wednesday.

Marine...

moderate northeast flow today will weaken tonight as the pressure
gradient slackens as low pressure over the ohio river weakens. Will
maintain the small craft advisory for western lake erie into this
evening to allow for any remaining gusts to 25 knots and resultant
elevated wave action. Thereafter, conditions will be rather calm
from early to mid next week as high pressure builds into the area.

This high will also bring an end to the ongoing unsettled weather
as showers associated with a secondary low pressure system pivoting
back west diminish with time. After a few widely scattered showers
on Monday as this low dissipates over the area, expect dry weather
through the middle of the week.

Dtx watches warnings advisories
Mi... Beach hazards statement until 10 pm edt this evening for miz083.

Lake huron... None.

Lake st clair... None.

Michigan waters of lake erie... Small craft advisory until 10 pm edt this evening for lez444.

Aviation... ..Sc
discussion... Dg sp
marine... ... .Dg
you can obtain your latest national weather service forecasts online
at

Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
CLSM4 - St. Clair Shores, MI 6 mi27 min NNW 4.1 G 8.9 65°F 1011.5 hPa (+0.7)
45147 - Lake St Clair 12 mi87 min N 12 G 16 66°F 71°F1009.5 hPa (+0.0)
AGCM4 26 mi39 min 64°F 1010.4 hPa
THLO1 - Toledo Light No. 2 OH 41 mi37 min NNW 12 G 14 68°F
MBRM4 - 9014090 - Mouth of the Black River, MI 48 mi39 min 1009.8 hPa

Wind History for Fort Gratiot, MI
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Coleman A Young Municipal Airport, MI7 mi34 minN 910.00 miOvercast65°F55°F70%1010.7 hPa
Selfridge Air National Guard Base, MI17 mi31 minN 510.00 miOvercast64°F59°F86%1010.4 hPa
Troy, Oakland/Troy Airport, MI19 mi32 minNNW 310.00 miOvercast65°F56°F74%1011.5 hPa
Detroit/Grosse Ile, Grosse Ile Airport, MI24 mi32 minN 510.00 miPartly Cloudy67°F57°F70%1010.8 hPa

Wind History from DET (wind in knots)
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Last 24hrE4E6NE6E8E9E6E9E6NE4E6NE7E9E11NE12NE8NE11
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1 day agoS5SE6S6S7SE7S8S6S8SE7S9S8S7SE8S7SE6SE6SE9SE6SE11E8SE8SE10E10E8
2 days agoSE9SE9SE7SE6SE7SE6SE4SE3CalmSE4E3SE6S8S9S12
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Tide / Current Tables for
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Tide / Current Tables for
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Weather Map and Satellite Images
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GOES 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.
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Wind Forecast for Detroit/Pontiac, MI (20,4,5,8)
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Ground Weather Radar Station Detroit, MI
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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 numerious 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.