Friday, October20, 2017 L-36.com


Marine Weather and Tides
Grosse Pointe Park, 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 7:50AMSunset 6:42PM Friday October 20, 2017 8:38 AM EDT (12:38 UTC) Moonrise 7:28AMMoonset 6:35PM Illumination 0% Phase: New Moon; Moon at 0 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 /o.can.kdtx.ma.w.0056.000000t0000z-171015t1730z/ 111 Pm Edt Sun Oct 15 2017
.the special marine warning is cancelled... The affected areas were... Lake st. Clair open lake (u.s. Portion)... St. Clair river... The Thunderstorms have moved out of the area and no longer pose a significant threat to boaters. Lat...lon 4260 8254 4255 8259 4256 8264 4238 8282 4235 8293 4237 8300 4239 8295 4244 8291 4254 8291 4259 8285 4266 8285 4272 8269 4270 8261 4265 8259 4264 8256 4276 8251 4283 8251 4283 8247 4276 8247 time...mot...loc 1709z 271deg 36kt 4276 8242 4240 8263
This is a Weather Statement Zone, please check the Date to see if it has expired
LCZ422 Expires:201710151721;;908498 FZUS73 KDTX 151711 MWSDTX MARINE WEATHER STATEMENT NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI 111 PM EDT SUN OCT 15 2017 LCZ422-460-151721-

7 Day Forecast for Marine Location Near Grosse Pointe Park city, MI
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location: 42.34, -82.94     debug


Area Discussion for - Detroit/Pontiac, MI
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Fxus63 kdtx 201041
afddtx
area forecast discussion
national weather service detroit pontiac mi
641 am edt Fri oct 20 2017

Aviation
Departing high pressure will still be able to maintain clear skies
(below 25 kft) today and tonight. Southerly winds look to reach
around 10 knots this afternoon, dropping off during the evening.

Dtw threshold probabilities...

* none.

Prev discussion
Issued at 301 am edt Fri oct 20 2017
discussion...

there will be a slight amplification to the mid level ridge axis
extending from the SE us into the ERN great lakes today as a
progressive mid level trough axis moves into the NRN rockies. The
influence of the low level anti cyclone across the upper ohio valley
and mid atlantic will sustain very dry air across SE mi today, while
southerly return flow advects a little warmer air mass into lower
mi. In fact, upstream high temps yesterday were well into the 70s.

Despite the relatively cold early morning temps, the low level warm
air advection under full Sun today should boost highs into the low
to mid 70s. The southerly gradient will increase tonight as the low
level anticylone shifts toward the east coast. This will suppress
the degree of radiation cooling, supporting min temps mainly in the
50s. Despite some occasional high clouds on Saturday, the southerly
gradient will offer a little better mixing and thus support very
warm conditions, with highs well into the 70s.

The 00z model suite indicate the cold front associated with the
progressive mid level trough will push across SE mi late Sun Sunday
night. Energy within the base of this trough is forecast to cut off
across the lower ms valley, while the better northern stream energy
lifts well north of the great lakes. Nonetheless, a narrow plume of
deep layer moisture along behind the surface front and some upper
jet support likely sustaining some degree of mid level fgen will
support rain across the area during the late Sunday to early mon
time frame. Warm and breezy conditions can be expected through much
of Sun in advance of the sfc cold front.

While the GFS and ECMWF agree in northern stream trough
amplification on Monday, there are differences with respect to the
timing and degree of phasing with the remnant upper low over the
deep south. The ECMWF phases this energy more quickly, the result
being a prolonged period of rain across SE mi Monday into tues. The
gfs on the other hand is slower to phase the systems, resulting in
the better rain potential well east of the forecast area. Obviously
with these differences, chance type pops will be maintained in the
forecast Mon into tues. The northern stream trough will drive colder
air into the region during the early portion of the work week.

Current forecast projections suggest the flow will remain
progressive, with a brief warm up possible on thurs before the next
northern stream wave drives another influx of cold air into the
region.

Marine...

high pressure sliding east will allow for southerly winds right
through the weekend, topping out between 20 to 25 knots over the
second half of the weekend, ahead of a cold front. This cold front
looks to be moving through Sunday night, bringing with it showers
and wind shift to the west early next week, and topping out around
30 knots by Tuesday.

Dtx watches warnings advisories
Mi... None.

Lake huron... None.

Lake st clair... None.

Michigan waters of lake erie... None.

Aviation... ..Sf
discussion... Sc
marine... ... .Sf
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 10 mi39 min SW 1.9 G 2.9 47°F 1024.7 hPa (+1.0)
45147 - Lake St Clair 15 mi99 min WSW 3.9 G 5.8 57°F 58°F1024 hPa (+1.2)
AGCM4 29 mi51 min 47°F 1024.1 hPa
THLO1 - Toledo Light No. 2 OH 38 mi49 min S 7 G 8 56°F
45165 47 mi29 min SW 7.8 G 9.7 53°F 62°F1 ft40°F
SBIO1 - South Bass Island, OH 49 mi39 min Calm G 1.9 57°F 1024.9 hPa (+1.1)

Wind History for Toledo, OH
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Coleman A Young Municipal Airport, MI8 mi46 minN 010.00 miFair43°F37°F80%1024.9 hPa
Troy, Oakland/Troy Airport, MI19 mi44 minN 010.00 miFair44°F34°F70%1025.1 hPa
Detroit/Grosse Ile, Grosse Ile Airport, MI20 mi46 minN 010.00 miFair47°F37°F71%1024.7 hPa
Selfridge Air National Guard Base, MI20 mi1.7 hrsN 010.00 miFair40°F37°F89%1023.7 hPa
Detroit, Detroit Metropolitan Wayne County Airport, MI22 mi46 minS 610.00 miPartly Cloudy43°F36°F76%1025.3 hPa

Wind History from DET (wind in knots)
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W8W8W6W4W3W3W3W3NW4W4CalmCalmCalmCalmCalmCalm
1 day agoSW6SW8SW10S9S11
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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 (8,2,3,4)
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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.