Sunday, August20, 2017 L-36.com


Marine Weather and Tides
Hamtramck, 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 6:44AMSunset 8:26PM Sunday August 20, 2017 3:52 AM EDT (07:52 UTC) Moonrise 4:19AMMoonset 6:50PM Illumination 4% Phase: Waning Crescent; Moon at 28 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
LCZ423 /o.exp.kdtx.ma.w.0044.000000t0000z-170811t2045z/ 442 Pm Edt Fri Aug 11 2017
.the special marine warning will expire at 445 pm edt... The affected areas were... Detroit river... The Thunderstorm has moved out of the area and no longer poses a significant threat to boaters. Lat...lon 4205 8323 4206 8323 4219 8319 4222 8313 4217 8313 4212 8312 4205 8315 4201 8314 4201 8315 time...mot...loc 2042z 269deg 38kt 4210 8301
This is a Weather Statement Zone, please check the Date to see if it has expired
LCZ423 Expires:201708112052;;233222 FZUS73 KDTX 112042 RRA MWSDTX MARINE WEATHER STATEMENT NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI 442 PM EDT FRI AUG 11 2017 LCZ423-112052-

7 Day Forecast for Marine Location Near Hamtramck, MI
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location: 42.38, -83.04     debug


Area Discussion for - Detroit/Pontiac, MI
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Fxus63 kdtx 200446
afddtx
area forecast discussion
national weather service detroit pontiac mi
1246 am edt Sun aug 20 2017

Aviation
High pressure will bringVFR conditions throughout the forecast
period even as it splits off to the east during the day.

Light variable winds will become southwest under 10 knots on the
backside of this high by mid late morning with just a few diurnal
cumulus possible within a rather dry airmass. Weak surface flow and
decent heating could bring a lake breeze up to or through dtw late
afternoon evening backing winds more south southeast but would
remain under 10 knots.

Dtw threshold probabilities...

* none.

Prev discussion
Issued at 251 pm edt Sat aug 19 2017
discussion...

upper level trough axis cold pool (-15 c at 500 mb per apx sounding)
pushing east of the central great lakes this afternoon. Modest
pocket of moisture in and around saginaw bay could trigger isolated
activity, but loss of daytime heating and increasing upper level
northwest confluent flow warming mid levels should end activity
around 00z if anything does in fact go up. Large surface high center
to track near the southern michigan border tonight and into the
eastern ohio valley tomorrow. Surface dew pts have slipped into the
55 to 60 degree range this afternoon, which looks to be a good target
for mins overnight across most locations, which is probably cool
enough for patchy fog around inland lakes with calm winds.

Southwest return flow around the high tomorrow to allow temps to
push into the mid 80s based off 850 mb temps reaching around 16 c.

Even warmer airmass in place for Monday ahead of a weak cold front,
as 850 mb temps progged to climb to around 19 c, suggesting maxes
approaching 90 degrees. None-the-less, increasing moisture and clouds
expected, along with the eclipse during peak heating, anticipating
maxes more in the 85 to 88 degree range. In fact, main moisture surge
(per 850- 700 mb theta-e fields) look to be occuring during the
morning hours, with moisture axis (pw values around 1.75 inches) in
place by 00z Tuesday. It's possible there may be enough instability
to trigger a few showers or thunderstorms, but warm layer in 5-10 kft
layer may just enough to cap activity with no clear cut low level
convergence trigger, as 500 mb heights are also around 588 dam. Much
better chance Monday night with increasing height falls, as deepening
low pressure pushes into the western great lakes.

A cold front pushing northwest to southeast will provide additional
rain and thunderstorms chances through Tuesday morning, with
confidence regarding precipitation further enhanced as an amplified
upper-level trough with a strong embedded upper-level disturbance
pushes over the area aloft. Likely rain and thunderstorm chances
will diminish throughout Tuesday afternoon as winds veer from the
southwest to the northwest following the cold front, allowing dry,
stable air to enter michigan. This cold front will have a
significant impact on temperature and humidity. Daytime highs
forecasted in the upper 70s to lower 80s on Tuesday are expected to
drop into the lower 70s for a high on both Wednesday and Thursday.

Likewise, dew points in the upper 60s on Tuesday morning and
afternoon are expected to diminish into the low to mid 50s both
Wednesday and Thursday. Temperatures will gradually climb back into
the mid to upper 70s by the weekend. Otherwise, a broad surface high
pressure and ridging aloft will look to keep conditions dry heading
into the weekend.

Marine...

modest northwesterly flow will back to southwesterly by early
Sunday. Speeds will remain moderate - with sustained winds in the 10-
15kt range. The offshore nature will preclude waves from becoming
much of an issue. The next significant weather maker will arrive
Monday night and persist through Tuesday. Moderate northwest flow
with higher waves will set up behind the cold front by Tuesday night.

Dtx watches warnings advisories
Mi... None.

Lake huron... None.

Lake st clair... None.

Michigan waters of lake erie... None.

Aviation... ..Drc
discussion... Sf am
marine... ... .Mann
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 11 mi53 min WSW 4.1 G 6 69°F 1016.9 hPa (+0.6)
45147 - Lake St Clair 19 mi113 min SSW 7.8 G 9.7 72°F 73°F1015.8 hPa (+1.2)
AGCM4 32 mi53 min 67°F 1016.5 hPa (+0.9)
THLO1 - Toledo Light No. 2 OH 39 mi53 min S 5.1 G 5.1 74°F
45165 48 mi33 min S 7.8 G 7.8 71°F 76°F1 ft62°F
THRO1 - 9063085 - Toledo, OH 53 mi53 min SSW 1.9 G 2.9 66°F 1016.9 hPa (+0.6)61°F

Wind History for Toledo, OH
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Coleman A Young Municipal Airport, MI4 mi60 minWSW 410.00 miFair66°F57°F75%1016.4 hPa
Troy, Oakland/Troy Airport, MI13 mi58 minN 010.00 miFair65°F58°F81%1017.6 hPa
Detroit, Detroit Metropolitan Wayne County Airport, MI19 mi60 minN 010.00 miFair65°F59°F81%1016.9 hPa
Selfridge Air National Guard Base, MI20 mi1.9 hrsWSW 410.00 miFair67°F58°F74%1016.1 hPa
Detroit/Grosse Ile, Grosse Ile Airport, MI20 mi60 minN 010.00 miFair63°F59°F88%1016.6 hPa

Wind History from DET (wind in knots)
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Last 24hrSW4W5W4W4W5W6W7W7NW8W9NW8NW10NW10NW8NW11
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1 day agoSW9SW11SW9SW8SW10
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2 days agoSE7SE8SE6SE7S5SE5SE6S5S10S10SW5SW3S9SE3S8S7S7SW8SW8W12W10W12W10
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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.