Wednesday, February20, 2019 L-36.com


Marine Weather and Tides
Detroit, 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 7:20AMSunset 6:11PM Wednesday February 20, 2019 4:12 PM EST (21:12 UTC) Moonrise 7:39PMMoonset 8:15AM Illumination 98% Phase: Waning Gibbous; Moon at 16 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.can.kdtx.ma.w.0040.000000t0000z-181006t2345z/ 710 Pm Edt Sat Oct 6 2018
.the special marine warning is cancelled... The affected areas were... Detroit river... Michigan waters of lake erie from detroit river to north cape mi... The Thunderstorm has moved out of the area and no longer poses a significant threat to boaters. Lat...lon 4216 8321 4218 8313 4213 8312 4205 8315 4202 8314 4198 8315 4197 8318 4196 8328 time...mot...loc 2308z 250deg 36kt 4214 8305
LCZ423 Expires:201810062320;;348663 FZUS73 KDTX 062310 MWSDTX Marine Weather Statement National Weather Service Detroit/Pontiac MI 710 PM EDT SAT OCT 6 2018 LCZ423-LEZ444-062320-


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 202021
afddtx
area forecast discussion
national weather service detroit pontiac mi
321 pm est Wed feb 20 2019

Discussion
Shower activity is expected to increase during the remainder of the
afternoon and persist into early mid evening as occluded frontal
boundary pivots northeast through the region around low pressure
center positioned over the upper mississippi river valley. With
temperatures still at or below freezing in most locations through
the mid late afternoon hours, still foresee some chance of minor
icing across the area in around the evening commute.

This will be especially true from around the m-59 corridor north
where precipitation coverage will be greatest and late day
temperatures the coldest. Will hold on to the winter weather
advisory to cover the evening commute period as the loss of daytime
solar insolation will coincide with this renewed push of shower
activity and favor some ice accumulation on untreated surfaces.

Precipitation will come to an end quickly during the evening as a
mid level dry slot works through the area in wake of passing front.

Temperatures will actually edge up into the middle 30s during the
last half of the evening before dropping back off into the mid upper
20s overnight as the aforementioned low tracks through the northern
great lakes and brings colder air back into the region on gusty west
winds.

The remainder of the week will be rather quiet as high pressure
builds into the region. Remaining gusty winds Thursday morning will
ease during the day as this high approaches with light winds under
the center of this system on Friday. Highs both days will range in
the 30s with no notable weather of which to speak.

Prevailing regime over north america will remain unchanged through
the weekend. The next round of energy is already digging
aggressively south. The attendant jet streak is considerably
stronger than what was observed with current wave lifting through
southeast michigan at the same point in its development sequence,
and there is strong consensus among the nwp that it will contract in
scale and considerably strengthen as it lifts north along roughly
the same track on Saturday night through Sunday. On the front end,
nothing more than rain showers with some embedded thunder followed
by another aggressive dry slot intrusion. However, the modeled
strength of the cyclone, the strength of the trailing arctic high
sliding south along the lee of the rockies, and expectation for at
least moderate cold advection, lends itself toward wind on the upper
end of climatology developing on Sunday. Inherited blended grids
featuring sustained winds around 30 mph with gusts to 45 to 50 mph
are a decent start given the 96 hour lead time. No changes needed.

Marine
An area of low pressure over the western great lakes will track
northeast through the straits tonight. Gusty easterly flow will veer
through southeast this evening, becoming strong out of the west
behind a passing front. These westerly gusts will likely reach 30
knots for a period late tonight into Thursday. This is especially
true across northern lake huron where funneling typically occurs
with westerly flow and may result in some brief gust to gales. High
pressure will build across the region Thursday night through Friday
night bringing more favorable marine conditions. The next strong low
pressure system is forecast to lift through the region for the
second half of the weekend presenting a risk for high end gales,
with lower end gales potentially lingering into Monday.

Prev discussion
Issued at 1217 pm est Wed feb 20 2019
aviation...

precipitation has been slow to transpire through the late morning
hours as dry easterly flow has been too much to over come.

Temperature profile is becoming more favorable for fzdz as low level
moisture bleeds slowly northward and mid levels dry out but
observations have been patchy at best over the last couple hours.

Will keep with that thought and just go with a tempo for fzdz for a
couple hours until deeper moisture arrives around 20-21z. By then
temperatures are expected to warm enough to change ptype to all rain
with the exception being mbs which make keep a rain snow mix. Mainly
ifr CIGS through the overnight with a period of lifr possible with
the heavier showers this evening. Winds will veer from the east to
southeast this afternoon before flipping to westerly behind a
passing cold front later this evening. Westerly wind gusts may reach
25 to 30 knots for a period tonight immediately behind the cold
front and then subside through the morning hours.

For dtw... Remains a chance for some freezing drizzle over the next
few hours but confidence is decreasing due to the amount of dry air
still present. Precipitation type will changeover to rain after
about 20z. East winds today of 15 knots today become west 25 to 30
knots after 05z.

Dtw threshold probabilities...

* high for ceiling 5000 ft or less today and tonight.

* moderate for ptype of freezing drizzle before 20z and rain after
20z.

Dtx watches warnings advisories
Mi... Winter weather advisory until 10 pm est this evening for miz047>049-
053>055-060>063-068>070.

Winter weather advisory until 7 pm est this evening for miz075-076-
082-083.

Lake huron... None.

Lake st clair... None.

Michigan waters of lake erie... None.

Discussion... Dg jvc
marine... ... .Drk
aviation... ..Drk
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 mi72 min ESE 14 G 19 29°F 1012.2 hPa (-6.4)
AGCM4 35 mi54 min 30°F 32°F1011.9 hPa
THLO1 - Toledo Light No. 2 OH 39 mi132 min E 8 G 8.9 31°F
TWCO1 48 mi32 min E 13 G 17 34°F 1007.1 hPa33°F
THRO1 - 9063085 - Toledo, OH 51 mi54 min E 6 G 7 32°F 1010.5 hPa30°F

Wind History for Toledo, OH
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NE5
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NE19
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G26
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NE5
G9
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G12

Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Coleman A Young Municipal Airport, MI5 mi79 minESE 16 G 211.25 miFog/Mist30°F28°F92%1012.7 hPa
Troy, Oakland/Troy Airport, MI12 mi77 minE 10 G 182.50 miFog/Mist30°F26°F88%1012.5 hPa
Detroit, Detroit Metropolitan Wayne County Airport, MI16 mi79 minESE 91.00 miLight Freezing Drizzle Fog/Mist31°F27°F85%1012.2 hPa
Detroit/Grosse Ile, Grosse Ile Airport, MI20 mi77 minE 92.50 miFog/Mist32°F30°F95%1011.2 hPa
Selfridge Air National Guard Base, MI22 mi76 minE 127.00 miOvercast30°F29°F99%1013.2 hPa

Wind History from DET (wind in knots)
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Last 24hrE6E7SE5SE4SE4E4NE3E4E5E6E4E8E9E11E10E10NE7E15
G23
E11
G20
E12E12E11
G22
E16
G21
SE12
G18
1 day agoN7N7N6N4CalmCalmCalmS4CalmCalmCalmCalmCalmCalmCalmCalm3N3N4CalmCalmW4CalmCalm
2 days agoNE14
G19
NE10
G18
NE8NE8NE8N7N8N10N9N7N6N7N5N8NW5NW4NW5N8N10N11N7
G15
N9N8NW5

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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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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Wind Forecast for Detroit/Pontiac, MI (16,3,4,5)
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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.