Wednesday, June28, 2017 L-36.com


Marine Weather and Tides
Grosse Pointe Farms, MI

Version 3.4
What's New / NOTES
6/25/2017 - NOAA is having a major issue that impact the 7 day forecast load times. Many users are reporting problems. The issue has been reported.
5/23/2017 - Worked with NOAA again to speed up the 7 day forecast load times. Thanks to them for being responsive.
5/19/2016 - There were issues with the 3 day airport observation history. I switched to another data source. Let me know if you see any issues with the data feeds.

Sunrise 5:55AMSunset 9:14PM Wednesday June 28, 2017 3:09 AM EDT (07:09 UTC) Moonrise 10:10AMMoonset 11:38PM Illumination 18% Phase: Waxing Crescent; Moon at 4 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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This is a Weather Statement Zone, please check the Date to see if it has expired
LCZ422 934 pm edt Mon jun 19 2017 a marine weather statement has been issued for the following areas... St. Clair river... Lake st. Clair... At 933 pm edt...doppler radar indicated a strong Thunderstorm... Capable of producing winds to up 30 knots. This Thunderstorm was located over mt clemens harbor of refuge...moving east at 20 knots. Locations impacted include... Mt clemens harbor of refuge...metro beach metropark marina... Algonac...st clair flats old channel light...new baltimore and st. Clair shores. Precautionary/preparedness actions... Mariners can expect gusty winds up to 30 knots...locally higher waves...and lightning strikes. Boaters should seek safe harbor immediately until this storm passes. && lat...lon 4267 8251 4262 8252 4255 8259 4255 8264 4246 8274 4247 8289 4258 8287 4259 8285 4266 8284 4272 8269 4270 8261 4265 8259 4264 8256 4275 8252 4276 8247
This is a Weather Statement Zone, please check the Date to see if it has expired
LCZ422 Expires:201706200215;;508156 FZUS73 KDTX 200134 MWSDTX MARINE WEATHER STATEMENT NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI 934 PM EDT MON JUN 19 2017 LCZ422-460-200215-

7 Day Forecast for Marine Location Near Grosse Pointe Farms city, MI
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location: 42.4, -82.89     debug


Area Discussion for - Detroit/Pontiac, MI
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Fxus63 kdtx 280343
afddtx
area forecast discussion
national weather service detroit pontiac mi
1143 pm edt Tue jun 27 2017

Aviation
High pressure across the upper ohio valley will sustain dry
conditions with clear skies and light winds through daybreak. The
departure of the sfc high to the mid atlantic Wednesday morning will
establish an increasing south-southwest gradient across SE mi.

Deepening of the mixed layer during the course of the day will then
result in a modest uptick in the winds. Otherwise, dry air in the low
level will maintain clear skies below 10k ft through Wed afternoon.

Dtw threshold probabilities...

none.

Prev discussion
Issued at 309 pm edt Tue jun 27 2017
discussion...

shortwave dropping through back side of mid level trough is clipping
eastern michigan this afternoon and evening. Very cold airmass
aloft as this mornings sounding indicate freezing level around 6kft
combined with strong diurnal heating is yielding capes upwards to
around 1k joules producing scattered showers mainly from the thumb
and saginaw valley on north. Expect this activity to continue into
the evening before dissipating around sunset. Some light shower
activity could make it down to the detroit area briefly during prime
heating. Some thunder is possible as -20c is just a mere 16kft above
the surface. After... Skies will clear early tonight as surface high
pressure slides by to the south and mid level heights rise. Wednesday
will start off mostly sunny but clouds will begin increasing from
the west during the afternoon as WAA around backside of departing
high begins. Shortwave tracking through the upper midwest will spin
up a weak surface low Wednesday that will track east across the
northern great lakes. Showers and thunderstorms will develop over
wisconsin and spread east-southeast along a strengthening warm front
that will be lifting north through lower michigan tomorrow afternoon.

Expect the best chance for showers and thunderstorms to occur late
afternoon evening across the saginaw valley and thumb. This area will
be sensitive to any heavy rainfall after major flooding over the
weekend. Activity shouldn't last too long and expecting maybe upwards
half an inch. There should be a break in activity after warm front
passage but showers and thunderstorms will return later Wednesday
night as a cold front moves through lower michigan down to along the
southern border Thursday morning where it will stall as main
shortwave lifts northeast into ontario.

Thursday should be rather quiet for most of the forecast area as mid
level ridge slides through but showers and thunderstorms will still
be possible especially across the southern two tiers of counties in
the vicinity of the stationary front. Another stronger shortwave in a
broader deepening trough will advance towards the great lakes
Thursday night. In response the stationary front will lift back north
as a warm front bringing a chance for showers and thunderstorms
across the area. Temperatures will be more seasonable the next couple
of days.

Extended forecast Friday june 30th through Wednesday, july 5th:
models showing little change in the forecast from yesterday with wet
weather pattern still expected to resume mid-week and continue into
weekend as several waves of low pressure move through SE mi. Chances
of showers thunderstorms still look to increase by Friday afternoon
and evening with a few showers lingering about for Saturday. Surface
high pressure is delayed until Sunday on new run, along with the
upper level trough. Upper level troughs could still be a bit of a
fly in the ointment triggering scattered showers Sunday through
Tuesday. At present, the vort maxes disappear for Wednesday as high
pressure gets a slightly better footing over the area; translation,
drier conditions and less clouds Wednesday. Temperatures continue to
hold near the seasonal norm through the period with highs in the
upper 70s to low 80s and overnight lows in the 60s.

Marine...

moderate westerly winds will hold throughout the afternoon as
diurnal heating over land brings the slight chance to see isolated
showers over the saginaw bay, and along the western coasts of the
great lakes. Overnight, winds will shift from westerly to more
southwesterly as nocturnal stability acts to keep winds light. High
pressure moving east across the ohio valley will act to keep
conditions dry throughout Wednesday and will usher in warmer air
into the region, bringing more stable conditions over the lakes as
gusts remain sub-15 knots. Thunderstorm chances then move in
Wednesday night into Friday as a series of low pressure systems help
to advect warm, moist air into the region.

Dtx watches warnings advisories
Mi... None.

Lake huron... None.

Lake st clair... None.

Michigan waters of lake erie... None.

Aviation... ..Sc
discussion... Drc de
marine... ... .Am
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 5 mi69 min WSW 2.9 G 4.1 62°F 1018.3 hPa (+0.4)
45147 - Lake St Clair 11 mi69 min E 5.8 G 7.8 66°F 69°F1017.2 hPa (+0.4)
AGCM4 25 mi57 min 57°F 1017.4 hPa
THLO1 - Toledo Light No. 2 OH 43 mi69 min WNW 8 G 8.9 67°F
MBRM4 - 9014090 - Mouth of the Black River, MI 47 mi57 min 60°F 1017 hPa
FTGM4 - 9014098 - Fort Gratiot, MI 49 mi57 min WSW 6 G 8 58°F 1017 hPa49°F

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 mi76 minW 310.00 miFair60°F48°F65%1017.9 hPa
Selfridge Air National Guard Base, MI15 mi71 minWSW 310.00 miFair55°F50°F88%1017.6 hPa
Troy, Oakland/Troy Airport, MI18 mi76 minN 010.00 miFair60°F45°F59%1018.6 hPa

Wind History from DET (wind in knots)
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Last 24hrW6W6NW7NW5W7NW8W11W11NW9W8W5W8W9
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SW9W8W5W9W6NW3CalmW4W3W3W4
1 day agoW5W5W5W7W9W8W8NW11
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2 days agoW4W6W5W6W5W9
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W9W11
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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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Weather Map
wmap_A
IR Satellite Image from GEOS
east_satellite

GOES Local Image of GreatLakes    EDIT
Geos

Wind Forecast for Detroit/Pontiac, MI (3,6,7,8)
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Ground Weather Radar Station Detroit, MI
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weather_mapweather_map weather_map

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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.