Tuesday, June27, 2017 L-36.com


Marine Weather and Tides
Detroit, 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 5:56AMSunset 9:14PM Tuesday June 27, 2017 1:24 PM EDT (17:24 UTC) Moonrise 9:04AMMoonset 11:05PM Illumination 14% 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
LCZ423 /o.con.kdtx.ma.w.0014.000000t0000z-170623t0115z/ 844 Pm Edt Thu Jun 22 2017
.a special marine warning remains in effect until 915 pm edt... For the following areas... Detroit river... Lake st. Clair open lake (u.s. Portion)... At 844 pm edt...a strong Thunderstorm was located near the ambassador bridge...moving northeast at 30 knots. Hazard...wind gusts to 40 knots. Source...radar indicated. Impact...small craft could be damaged in briefly higher winds and suddenly higher waves. The strong Thunderstorm will be near... Grosse pointe around 855 pm edt. St. Clair shores around 910 pm edt. Metro beach metropark marina...st clair flats old channel light and mt clemens harbor of refuge around 915 pm edt. Precautionary/preparedness actions... Move to safe harbor until hazardous weather passes. && lat...lon 4255 8259 4256 8263 4254 8266 4237 8283 4232 8306 4232 8312 4238 8295 4245 8291 4254 8291 4259 8285 4266 8285 4272 8269 4270 8263 4261 8254 4262 8260 4261 8258 4260 8255 4261 8253 time...mot...loc 0044z 241deg 29kt 4238 8306 hail...0.00in wind...40kts
This is a Weather Statement Zone, please check the Date to see if it has expired
LCZ423 Expires:201706230115;;663543 FZUS73 KDTX 230044 MWSDTX MARINE WEATHER STATEMENT NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI 844 PM EDT THU JUN 22 2017 LCZ423-460-230115-

7 Day Forecast for Marine Location Near Detroit, MI
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location: 42.38, -83.1     debug


Area Discussion for - Detroit/Pontiac, MI
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Fxus63 kdtx 271710
afddtx
area forecast discussion
national weather service detroit pontiac mi
110 pm edt Tue jun 27 2017

Aviation
Residual mid-level cyclonic flow in conjunction with daytime heating
has and will continue to produce high basedVFR CU throughout the
afternoon. Isolated shower develop will still continue to be a
possibility during daylight hours (18 - 00z), however, opted to
leave the mention of it out of the tafs as coverage and duration
will be limited. Otherwise, high pressure moving across the ohio
valley throughout the day will act to keep winds westerly, with
isolated gusts peaking at 20 kts possible due to daytime mixing.

Gusts will diminish after sunset as nocturnal stability acts to
scour out remaining cloud cover.

Dtw threshold probabilities...

none

Prev discussion
Issued at 335 am edt Tue jun 27 2017
discussion...

low pressure tracking into georgian bay will continue to drag an
axis of moisture across southeast michigan early this morning. This
will generate a few light showers, primarily north of m-59. The
showers should exit the thumb by about 8am, allowing the atmosphere
to recover a little through the mid-morning hours before shower, and
possibly thunderstorm, chances are renewed.

Upper shortwave diving through ontario and away from st james bay
will clip across northern and central michigan today. This should
help generate showers and a few thunderstorms again during the
afternoon and evening. Weak theta-e advection and only modest
instability should limit coverage to lower-end scattered. Low
freezing level (6-7kft) will once again bring the risk for small
hail with any thunderstorm that develops. The wave will exit east
during the late evening, leaving subsidence and drier air in its
wake. The remainder of the night and most of Wednesday look dry as
high pressure centered over the ohio valley extends northward into
lower michigan. Temperatures will undergo a moderating trend over
the next few days, with MAX temps reaching back into the upper 70s
by Wednesday as southerly flow increases.

Active pattern then setting up from Wednesday night through the end
of the week as upper energy now pushing through oregon tracks
through the upper midwest and great lakes, and is followed by the
upper low now over british columbia and alberta. Strong low-level
jet will usher warmer air and moisture into the area Wednesday
night, spiking pw values up close to 1.75 inches. Idea is still for
storms to develop over the upper midwest Wednesday, and lift across
michigan Wednesday night, with better chances for showers tstorms
over central and northern lower michigan. Steep mid-level lapse
rates and 0-6km bulk shear around 30 knots could favor hail with
stronger storms, but elevated nature of storms would limit damaging
wind gust threat. Occluded surface low will track near the u.P. On
Thursday, dropping a weak front through southern michigan. This
boundary will then serve as a focus for additional showers tstorms
Thursday. While best chance for strong to severe storms looks to be
just south of the area, cannot rule out a few severe storms over
southern michigan. Main concern with convection during the middle to
end of the week will be potential for storms to produce very heavy
rainfall in a short period of time. Areas where flood waters are
still receding will be most vulnerable.

Marine...

a period of moderate west-northwest winds will exist today as mid
level troughing slowly relinquishes control. Winds will ease
tonight under weak high pressure. Moderate southerly winds then
emerge on Wednesday in the wake of this high. South to southeast
winds will persist through Thursday, as low pressure tracks through
the northern great lakes. Increasing stability as warmer air
returns under this pattern will limit the gustiness. There will be
a chance of thunderstorms Wednesday night through Friday.

Hydrology...

the next chance for organized rainfall will exist Wednesday night
into Thursday. The latest forecast indicates up to one half inch of
rain will be possible through this time. However, localized higher
amounts in excess of one inch could occur within any heavier
thunderstorms. This would result in rises on area rivers and
streams, while potentially creating some minor flooding. The
extremely saturated conditions still existing across the tri-cities
and northern thumb will make these locations even more susceptible
to a period of heavy rainfall. In the meantime, area river flooding
continues to gradually ease. The titabawassee has now fallen below
flood stage, with the saginaw river forecast to fall below flood
stage Wednesday morning.

Dtx watches warnings advisories
Mi... None.

Lake huron... None.

Lake st clair... None.

Michigan waters of lake erie... None.

Aviation... ..Am
discussion... Hlo
marine... ... .Mr
hydrology... .Mr
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 13 mi85 min WNW 8 G 16 66°F 1018.6 hPa (+0.7)
45147 - Lake St Clair 23 mi85 min SE 9.7 G 14 63°F 67°F1 ft1017.6 hPa
AGCM4 35 mi67 min 69°F 1017.4 hPa
THLO1 - Toledo Light No. 2 OH 39 mi65 min WNW 8.9 G 14 63°F
45165 48 mi45 min W 9.7 G 14 65°F 70°F1 ft43°F
THRO1 - 9063085 - Toledo, OH 51 mi67 min NW 8 G 15 66°F 1019.3 hPa39°F

Wind History for Toledo, OH
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W6
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1 day
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W8
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G22
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NW11
G17
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G12
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G12
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G21
W12
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W13
G18

Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Coleman A Young Municipal Airport, MI5 mi32 minWNW 810.00 miMostly Cloudy67°F43°F42%1018.2 hPa
Troy, Oakland/Troy Airport, MI12 mi31 minW 510.00 miMostly Cloudy68°F39°F35%1018.6 hPa
Detroit, Detroit Metropolitan Wayne County Airport, MI16 mi32 minW 11 G 1710.00 miMostly Cloudy70°F45°F41%1018.4 hPa
Detroit/Grosse Ile, Grosse Ile Airport, MI20 mi32 minW 7 G 1510.00 miPartly Cloudy68°F44°F43%1018.3 hPa
Selfridge Air National Guard Base, MI22 mi87 minWNW 11 G 1810.00 miA Few Clouds67°F48°F52%1017.8 hPa

Wind History from DET (wind in knots)
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Last 24hrW16
G21
W11
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W14
G25
W16
G23
W16
G21
SW10
G18
W5W6NW12
G19
NW4W4W7W5W7W6W6NW7NW5W7NW8W11W11NW9W8
1 day agoW9W11
G18
W12
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N11
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NW8NW8NW5NW3W3W4SW3W4W5W5W5W5W7W9W8W8NW11
G16
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2 days agoW10
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W12W10W14
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W5W8W7W5W3W4W4W6W5W6W5W9
G14
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G18
W14
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W12
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NW12
G18

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 (13,3,4,5)
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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.