Thursday, May23, 2019 L-36.com


Marine Weather and Tides
Wyandotte, MI

Version 3.4
What's New / NOTES
10/6/2018 Colors of tide XTide graphs changed to emphasize that they were upgraded. See next note. Comments welcome.
10/4/2018 I have fixed XTide and updated the harmonic files. There were some name changes so you might have to click EDIT to find the new station name.

Sunrise 6:02AMSunset 8:55PM Thursday May 23, 2019 7:33 PM EDT (23:33 UTC) Moonrise 12:00AMMoonset 9:07AM Illumination 76% Phase: Waning Gibbous; Moon at 20 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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LCZ423 /o.con.kdtx.ma.w.0003.000000t0000z-190523t1100z/ 638 Am Edt Thu May 23 2019
.a special marine warning remains in effect until 700 am edt... For the following areas... Detroit river... Michigan waters of lake erie from detroit river to north cape mi... At 638 am edt, strong Thunderstorms were located along a line extending from 19 nm west of the ambassador bridge to 10 nm south of north cape, moving east at 60 knots. Hazard...wind gusts to 40 knots. Source...radar indicated. Impact...small craft could be damaged in briefly higher winds and suddenly higher waves. Strong Thunderstorms will be near... The ambassador bridge around 655 am edt. Other locations impacted by strong Thunderstorms include woodland beach, stony point, gibraltar, estral beach and detroit beach. Precautionary/preparedness actions... Move to safe harbor until hazardous weather passes. && inserttorwatches(${watches}, org.apache.velocity.tools.generic.listtool@3779136c, ${secondtimezone}, com.raytheon.viz.warngen.util.dateutil@5dbc765c, {plain=java.text.simpledateformat@dc8a52dd, ddhhmm=java.text.simpledateformat@b047a320, ymdthmz=java.text.simpledateformat@1425e1a, header=java.text.simpledateformat@187b0207, clock=java.text.simpledateformat@3d984c63, time=java.text.simpledateformat@21d6a0}) insertsvrwatches(${watches}, org.apache.velocity.tools.generic.listtool@3779136c, ${secondtimezone}, com.raytheon.viz.warngen.util.dateutil@5dbc765c, {plain=java.text.simpledateformat@dc8a52dd, ddhhmm=java.text.simpledateformat@b047a320, ymdthmz=java.text.simpledateformat@1425e1a, header=java.text.simpledateformat@187b0207, clock=java.text.simpledateformat@3d984c63, time=java.text.simpledateformat@21d6a0}) lat...lon 4173 8350 4180 8350 4195 8337 4197 8328 4225 8318 4233 8312 4236 8304 4236 8293 4232 8306 4224 8313 4212 8312 4203 8315 4196 8311 4172 8341 time...mot...loc 1038z 263deg 59kt 4243 8348 4158 8334 hail...0.00in wind...40kts
LCZ423 Expires:201905231100;;323311 FZUS73 KDTX 231038 MWSDTX Marine Weather Statement National Weather Service Detroit/Pontiac MI 638 AM EDT Thu May 23 2019 LCZ423-LEZ444-231100-


7 Day Forecast for Marine Location Near Wyandotte, MI
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location: 42.18, -83.14     debug


Area Discussion for - Detroit/Pontiac, MI
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Fxus63 kdtx 231902
afddtx
area forecast discussion
national weather service detroit pontiac mi
302 pm edt Thu may 23 2019

Discussion
Westerly winds have been gusting between 40-45 mph this afternoon
over much of southeast michigan, as high temperatures have risen
into the 75 to 80 degree range. With the pressure gradient quickly
decreasing this evening and with the loss of daytime heating reduced
mixing depths, winds will drop off fast around sunset. In fact,
winds will become very light to calm late tonight as ridge of high
pressure arrives. Patchy fog not totally out of the question, but
expecting the surface near surface moisture to dry out enough
(surface dew pts falling into 40s) with the Sun and wind this
afternoon, and will not mention fog in the zones.

Upper level ridge already building into the central great lakes
tonight-tomorrow as the upper level trough energy over the great
basin gets booted off to the northeast, with MAX height fall center
tracking through the dakotas, and into ontario by Friday night. None-
the-less... Still some modest height falls over southern lower
michigan Friday night into Saturday, as the area is on the outer
fridge of the upper level ridge (594+ dam at 500 mb) centered over
the southeast u.S.

With the good moisture transport (pw values rising in the 1.5-1.70
inch range) and warm front lifting through Friday night, it appears
there will be enough instability and low level jet forcing to
support showers and thunderstorms. In fact, with 850 mb computed
cape AOA 1000 j kg (per euro), hail around one inch is in play, as
the CAPE density is maximized just above the freezing level. Even
during the day on Saturday, as activity attempts to become more
surface based, 0-6 km bulk shear around 40 knots will present at
least a marginal risk of severe storms as the mid level jet core (60
knots) over the western great lakes gradually slides east Saturday
night.

A cold front will push through the great lakes by early Sunday,
likely stalling just south of the michigan ohio indiana border.

Gradually rebounding heights aloft will usher in surface high
pressure and dry weather for much of SE michigan, but a chance
exists for more showers and thunderstorms across the southern
counties as a series of weak shortwaves moves along the frontal
slope. Stronger ridging moves overhead Monday and strengthens the
surface high pressure, leading to a dry and pleasant memorial day
across the area. Highs on Sunday and Monday will be in the 70s with
light winds.

More active weather is in store next week as a pair of low pressure
systems track through the region. The first will lift a warm front
through Monday night with a chance for showers and storms along it.

Tuesday and Wednesday will then be characterized by warm
temperatures, gusty southwest winds, and more chances for showers
and storms. The best chance for rain and possibly strong to severe
storms comes Wednesday as an upper trough swings overhead while a
cold front pushes across the state. Thursday will be cooler with a
lower chance of rain.

Marine
Southwest winds will continue veering more westerly the remainder of
today, with gusts of 25-30 knots and choppy waves 2-5 feet over the
local nearshore waters resulting in continued hazardous conditions
for small craft into this evening. A ridge of high pressure moving
east over the central great lakes will decrease the pressure
gradient and allow winds to diminish across the local waters
tonight. Light and variable flow will allow for favorable boating
conditions Friday. Showers and thunderstorms will return late Friday
night and through at least the first half of the memorial day
holiday weekend as southerly flow strengthens in advance of an
approaching cold front. As the cold front pushes south of the region
Sunday, drier weather and decreasing northerly flow in its wake will
allow for improved marine conditions to round out the memorial day
weekend.

Hydrology
Dry weather will prevail the remainder of today and through Friday
as a ridge of high pressure moves east across the region. An
increasingly moist and unstable airmass will then build into the
region late Friday night and into the first half of the memorial day
holiday weekend ahead of an approaching cold front. Scattered to
locally numerous showers and thunderstorms will be possible, and
will be capable of producing locally heavy rainfall in addition to
possible severe weather. Rainfall amounts will range from a quarter
to half of an inch basin average, with higher amounts possible in
thunderstorms. Localized poor drainage flooding of susceptible low
lying and urban areas will be possible where heavy rainfall from
thunderstorms occur, especially south of the i-69 corridor. Drier
weather will then prevail behind the cold front passage for the
latter half of the memorial day holiday weekend.

Prev discussion
Issued at 107 pm edt Thu may 23 2019
aviation...

influx of dry air associated with building ridge of high pressure
into the central great lakes will allow for any eroding stratocu to
become skc conditions the remainder of the afternoon and into this
evening. A few passing high clouds will be possible overnight, with
gradually increasing coverage of high clouds towards the end of the
period spilling eastward from plains convection. Main concern this
taf period will be gusty SW W winds through 00z, with peak gusts
topping out 30-35 knots at times. Winds ease after sunset and will
become light and variable by 12z Friday.

For dtw... Gusty winds 260-270 degree direction will pose increased
concern for crosswind thresholds. Peak gusts should remain below 35
knots, but obs upstream support potential for an isolated gust or
two to reach 35-37 knots. Gusts greatly diminish towards 03z.

Dtw threshold probabilities...

* moderate potential to reach crosswind thresholds through 00z.

Dtx watches warnings advisories
Mi... None.

Lake huron... Small craft advisory until 10 pm edt this evening for lhz421-422-
441>443.

Lake st clair... Small craft advisory until 8 pm edt this evening for lcz460.

Michigan waters of lake erie... Small craft advisory until 8 pm edt this evening for lez444.

Discussion... Sf tf
marine... ... .Irl
hydrology... .Irl
aviation... ..Irl
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 24 mi34 min W 17 G 24 75°F 1013.9 hPa (+1.7)
THLO1 - Toledo Light No. 2 OH 25 mi94 min W 20 G 22 71°F
45147 - Lake St Clair 30 mi34 min W 16 G 18 65°F 51°F3 ft1012.6 hPa (+1.1)
45165 34 mi24 min WNW 7.8 G 9.7 71°F 60°F2 ft52°F
TWCO1 34 mi24 min SE 19 G 22 73°F 1011 hPa54°F
THRO1 - 9063085 - Toledo, OH 38 mi40 min WNW 11 G 19 77°F 1014.9 hPa50°F
SBIO1 - South Bass Island, OH 41 mi34 min WNW 14 G 14 65°F 1014.4 hPa (+0.7)
AGCM4 45 mi40 min 74°F 50°F1013.1 hPa
MRHO1 - 9063079 - Marblehead, OH 49 mi40 min W 11 G 15 76°F 61°F1014.3 hPa53°F

Wind History for Toledo, OH
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NW11
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Detroit/Grosse Ile, Grosse Ile Airport, MI6 mi39 minW 12 G 2510.00 miFair76°F43°F32%1013.9 hPa
Detroit, Detroit Metropolitan Wayne County Airport, MI11 mi41 minWNW 1510.00 miA Few Clouds75°F44°F33%1013.9 hPa
Coleman A Young Municipal Airport, MI18 mi41 minW 14 G 2210.00 miFair75°F44°F33%1013.4 hPa
Detroit, Willow Run Airport, MI21 mi41 minWNW 16 G 2210.00 miFair77°F46°F33%1013.9 hPa
Monroe, Custer Airport, MI23 mi38 minW 14 G 2110.00 miFair76°F46°F35%1014.6 hPa

Wind History from ONZ (wind in knots)
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Last 24hrS3S3CalmS3S5S4S6S6CalmS4S7W13
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1 day agoS3CalmNE4CalmE3E4E5E4E4E5E5E7E7E4E6E7E5E7E3SE5SE5SE8S3Calm
2 days agoNW5NW9N6N6CalmCalmCalmCalmCalmCalmCalmCalmCalmCalmE3NE4E4E8S4S7S6S5S7S5

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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wmap_A
GOES Local Image of    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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Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for Detroit/Pontiac, MI (19,4,5,8)
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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.