Thursday, March23, 2017 L-36.com


Marine Weather and Tides
Milford, MI

Version 3.4
What's New / NOTES
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.
3/12/2015 - Added section for Gulf current for users in the GMZ marine zones.
This was requested by a user. If you have requests, please let me know.

Sunrise 7:28AMSunset 7:51PM Thursday March 23, 2017 6:31 AM EDT (10:31 UTC) Moonrise 3:57AMMoonset 2:09PM Illumination 18% Phase: Waning Crescent; Moon at 25 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.can.kdtx.ma.w.0004.000000t0000z-170301t0900z/ 349 Am Est Wed Mar 1 2017
.the special marine warning is cancelled... The affected areas were... Detroit river... Michigan waters of lake erie... The Thunderstorms have moved out of the area and no longer pose a significant threat to boaters. A severe Thunderstorm watch remains in effect until 400 am est for southeastern michigan. Lat...lon 4172 8346 4173 8345 4173 8350 4180 8350 4195 8337 4196 8328 4201 8325 4204 8315 4200 8313 4190 8325 4189 8331 4182 8337 4172 8341 time...mot...loc 0846z 274deg 49kt 4211 8288 4163 8356
This is a Weather Statement Zone, please check the Date to see if it has expired
LCZ423 Expires:201703010858;;822801 FZUS73 KDTX 010849 MWSDTX MARINE WEATHER STATEMENT NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI 349 AM EST WED MAR 1 2017 LCZ423-LEZ444-010858-

7 Day Forecast for Marine Location Near Milford, MI
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location: 42.65, -83.74     debug


Area Discussion for - Detroit/Pontiac, MI
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Fxus63 kdtx 230737
afddtx
area forecast discussion
national weather service detroit/pontiac mi
337 am edt Thu mar 23 2017

Discussion
Large arctic high pressure is centered just east of the state this
morning keeping the coldest and driest air also just to the east.

This is resulting in lows this morning mostly upper teen and low 20s
as opposed to colder as advertised earlier. As this high continues
to slide eastward return flow will bring WAA today. The day will
start with plenty sunshine before mid and high level clouds thicken
throughout the day ahead of approaching warm front. Highs today will
do about ten degrees higher then yesterday making it to the low to
mid 40s. Lows tonight will be reached early on in the mid 30s before
slowly rising as warm front lifts quickly through. Not much forcing
with this front other then moderate isentropic lift in the 850-600mb
level resulting in a band of showers that should last for a couple of
hours. Instability is near nil so do not expect any thunder. By
sunrise Friday the warm front should be positioned across the saginaw
valley and thumb where it may lift a bit more north before stalling.

This will allow for very mild air to infiltrate the rest of the
forecast area with highs reaching the 60s most locations with upper
60s near the ohio border. Dry air in the mid levels should cap off
moist low level resulting in mostly cloudy day and dry for the most
part with lack of any forcing. Exception will be continued shower
across the north closer to stalled front. If any significant breaks
can be made in the clouds 70 could easily be reached across the
south.

Closed low system centered over oklahoma will gradually weaken as it
drifts towards lower michigan over the weekend. This will continue
moist mild flow into the state. Another large arctic high will move
across eastern canada forcing the stalled front across central lower
michigan to slowly move back southward where it will stay throughout
the weekend providing focus for continued shower activity. The whole
muddled mess should exit the area for Monday. This will be quickly
follow by another wave exiting the plains which will bring another
chance for showers Monday night and early Tuesday.

Marine
Large area of high pressure will build southeastward into the mid
atlantic today. As the surface high pushes southeastward, winds will
switch to the southeast and steadily increase. In response, a warm
front will become increasingly organized over the region. The warm
air streaming over the cold lakes is expected to promote stable low
level profiles, limiting wind speeds over lake huron to 25 to 30
knots. Winds will diminish on Friday as warm front stalls over lake
huron, and then sinks south as a cold front Friday night into
Saturday, resulting in increasing easterly flow as high pressure
builds over ontario, leading to long duration easterly flow over the
weekend.

Prev discussion
Issued at 1155 pm edt Wed mar 22 2017
aviation...

slow eastward exit of expansive arctic high pressure will sustain a
stretch of favorable aviation conditions tonight and Thursday. The
accompanying high degree of stability ensures a clear sky through
the overnight period. Advancement of warmer mid level air into the
region will bring a thickening/lowering high based cloud throughout
Thursday. Warm air advection will eventually support a several hour
window for light rain development Thursday night. Uncertainty yet
in the degree of low level moistening during this time, simply
supporting an introductory lowerVFR mention at this stage. A more
significant reduction in conditions will be plausible by Friday
morning /particularly ptk northward/. Light winds under weak
gradient flow to become southeasterly Thursday. Strengthening
southwest flow just off the surface will introduce a low level wind
shear component Thursday night.

For dtw... Thickening cloud Thursday to carry CIGS above 5000 ft
through early Thursday evening. Lowering ceiling thereafter will
bring an increasing probability for sub-5000 ft CIGS Thursday night
/after 04z/.

//dtw threshold probabilities...

* medium in CIGS falling below 5000 ft after 04z Thursday night.

Dtx watches/warnings/advisories
Mi... None.

Lake huron... None.

Lake st clair... None.

Michigan waters of lake erie... None.

Discussion... Drc
marine... ... .Cb
aviation... ..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 47 mi32 min SSE 8 G 11 27°F 1034.2 hPa (-1.0)
THRO1 - 9063085 - Toledo, OH 68 mi44 min SSE 8.9 G 9.9 25°F 1032.9 hPa14°F

Wind History for Toledo, OH
(wind in knots)    EDIT      (on/off)   Help
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N6
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W4
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N6
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SE6
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NE1
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N2
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W3
W3

Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Howell, Livingston County Airport, MI13 mi38 minSE 310.00 miFair20°F15°F81%1032.5 hPa
Pontiac, Oakland County International Airport, MI17 mi39 minN 010.00 miA Few Clouds22°F14°F71%1033.7 hPa
Flint, Bishop International Airport, MI23 mi39 minS 610.00 miFair20°F15°F81%1034.1 hPa

Wind History from OZW (wind in knots)
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Last 24hrN4N6NE8
G14
N8N5NE6N6NE4N3W6N6N4CalmCalmCalmCalmCalmSE5SE4S3SE3SE3SE4Calm
1 day agoW3W5W4W5W9W13
G19
NW15
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G20
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N5N6NW14
G21
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G17
N5N5N5
2 days agoS8S6S7SE8S6S7S4SW3NW3NE5E3CalmE3CalmS4CalmCalmCalmW4W5CalmCalmNW3NW3

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 (6,6,7,8)
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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.