Sunday, January21, 2018 L-36.com


Marine Weather and Tides
Detroit Beach, 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 7:53AMSunset 5:37PM Sunday January 21, 2018 7:56 AM EST (12:56 UTC) Moonrise 10:28AMMoonset 10:11PM Illumination 23% Phase: Waxing Crescent; Moon at 5 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
    EDIT      (on/off)   Help
LEZ162 Lake Erie Open Waters From Ripley To Buffalo Ny- Lake Erie Open Waters From Maumee Bay To Reno Beach Oh- Lake Erie Open Waters From Reno Beach To The Islands Oh- Lake Erie Open Waters From The Islands To Vermilion Oh- Lake Erie Open Waters From Vermilion To Avon Point Oh- Lake Erie Open Waters From Avon Point To Willowick Oh- Lake Erie Open Waters From Willowick To Geneva-on-the-lake Oh- Lake Erie Open Waters From Geneva-on-the-lake To Conneaut Oh- Lake Erie Open Waters From Conneaut Oh To Ripley Ny- 325 Am Est Sun Jan 21 2018
Today..Southwest winds less than 10 knots becoming south. A chance of light rain. Areas of fog this morning. The lake is mostly ice covered.
Tonight..South winds 10 knots or less becoming southeast. A chance of rain in the evening, then rain likely after midnight. Areas of dense fog after midnight.
Monday..Southeast winds 5 to 15 knots. Areas of dense fog in the morning. Rain likely.
Monday night..Southeast winds 10 to 15 knots becoming south. Rain.
Tuesday..Southwest winds 15 to 25 knots becoming west. Rain likely with a chance of snow during the day, then a chance of snow showers Tuesday night.
Wednesday..West winds 15 to 20 knots becoming northwest 5 to 15 knots. A chance of snow showers during the day.
Thursday..West winds 5 to 10 knots becoming south. Waves omitted due to the lake being mostly ice covered.
LEZ162 Expires:201801211515;;764992 FZUS61 KCLE 210825 GLFLE Open Lake Forecast for Lake Erie National Weather Service Cleveland OH 325 AM EST Sun Jan 21 2018 For waters beyond five nautical miles of shore on Lake Erie Waves are the significant wave height - the average of the highest 1/3 of the wave spectrum. Occasional wave height is the average of the highest 1/10 of the wave spectrum. .SYNOPSIS... High pressure of 30.40 inches centered across the southeast coast will move off shore by Monday. Low pressure of 29.50 inches will track across the central Great Lakes Monday night, pulling a cold front across Lake Erie on Tuesday. High pressure 30.40 inches will build across the western lakes Wednesday and across the eastern lakes Thursday. LEZ061-162>169-211515-

7 Day Forecast for Marine Location Near Detroit Beach, MI
   Hourly   EDIT   Help
location: 41.83, -83.25     debug


Area Discussion for - Detroit/Pontiac, MI
      (on/off)   Help   NOTE: mouseover dotted underlined text for definition
Fxus63 kdtx 211035
afddtx
area forecast discussion
national weather service detroit pontiac mi
535 am est Sun jan 21 2018

Aviation
A warm front currently draped along the ohio river valley will
slowly strengthen as it lifts toward southern mi by tonight.

Southerly winds will usher in several rounds of moisture up into the
area through the period. This will lead to deteriorating conditions
early in the TAF which should then hold through the forecast. Look
for ifr conditions with both CIGS and vsbys today and tonight, with
some potential for lifr with some obs upstream supporting this. Will
amend as needed to account for this. Fog will be prevalent today
with some drizzle possible at times. Rain will arrive late tonight
into Monday morning.

For dtw... Ifr stratus and fog over the terminal should hold through
the forecast with some risk of lifr at times. Today should be mostly
dry with only the risk of some drizzle at times. Rain will move in
around 09z tonight with best chances occuring on Monday.

Dtw threshold probabilities...

* high for ceiling 5000 ft or less through Monday.

* low confidence in visibilities less than 1 2 mile.

* low confidence in ceiling heights at or less than 200 feet.

* high for drizzle as precipitation type Sunday... High for rain late
tonight.

Prev discussion
Issued at 340 am est Sun jan 21 2018
discussion...

closed mid level circulation centered over the southern rockies
early this morning projected to lift into the plains today.

Subsequent strong dynamic response will commence immediately
downstream of the pending height falls, sustaining a broad corridor
of moist isentropic ascent within an increasing low level southwest
flow. Early stages of this low level moistening process now underway
locally, as a lead wing of higher 925 mb relative humidity
translates into an extensive stratus canopy. More pronounced
reduction in ceiling heights looming over indiana indicative of the
pending greater moisture advection yet to come, focused along an
organizing warm frontal structure that eventually migrates into the
region late today and tonight. The existing moist mild environment
still generally characterized by a lack of ascent through the
column, suggesting that any light precipitation production will
remain in the form of drizzle today. Given the milder start but
higher cloud coverage, highs of lower 40s remain reasonable.

Little variation in conditions through tonight. Synoptic forcing
tied to the inbound mid latitude cyclone will hold off until Monday
morning. This will simply favor the perpetuation of drizzle or light
rain within areas of fog for a bulk of the overnight period.

Potential for some locally dense fog to emerge post-sunset, focused
along and north of the advancing warm front. Very small window for
possible freezing drizzle rain across northern midland bay counties
and the northern thumb early Monday morning as temperatures flirt
with the freezing mark for a time.

A period of robust dynamic ascent anchored by solid low level jet
forcing, upper diffluence and theta-e advection situated at the edge
of a pronounced upper height fall gradient will support widespread
rainfall during the Monday period. Convective element to this
environment could lead to some heavier rainfall at times, with the
possibility for a few rumbles of thunder. Precipitation chances will
briefly diminish as the mid level dry slot punches in late Monday
into early Monday night. This may allow an already mild resident
airmass to witness some late day recovery, so highs well into the
40s certainly look attainable.

Sizable upper low will pivot across the region Monday night and
Tuesday. Lead cold frontal boundary anchoring the edge of the
inbound upper height fall gradient will sweep through late Monday
night. The associated increase in cva and frontal convergence will
support an uptick in precipitation coverage by Tuesday morning.

Unsettled conditions throughout Tuesday will maintain the potential
for showers. Only weak cold air advection will ensue with this
initial frontal passage, so boundary layer conditions may remain too
warm to support snow outside of the heaviest bursts. Forecast will
continue to simply call for a rain snow mix on Tuesday, with
temperatures slowly falling through the upper and middle 30s during
the day. Best shot of accumulating snow, albeit brief, comes late
Tuesday or early Tuesday night as the secondary stronger cold front
sweeps through. Highest potential would be focused toward the north
saginaw valley and thumb region .

Marine...

a weak cold front has dropped into northern lake huron and will
stall there today. An approaching low pressure system over the
plains will lift a warm front into the southern lakes late this
evening which will bring mild air in from the ohio valley over all
other marine areas with steady southerly flow. The low will
strengthen today while lifting slowly toward southern lake mi,
eventually passing eastward through the region Monday night and
Tuesday. This system will produce widespread coverage of
precipitation, primarily rain from saginaw bay southward and a
wintry mix to the north. The position of the low over central lake
huron will result in increased easterly flow over the north half of
the lake on Monday. A gale watch remains in effect for this briefly
higher period of winds. The wind will weaken and then shift
northwest in the wake of the low on Tuesday. Northwest wind trailing
the system could approach gales briefly Tuesday night into
Wednesday.

Hydrology...

a large low pressure system will continue to bring very mild air
into the region through Monday. This will result in additional
melting snow followed by increasing coverage of rain showers tonight
which will become widespread Monday. The snow will melt but the
ground will not thaw fast enough to prevent runoff from both the
snow and rainfall. This could result in ponding of water on roads
and other prone areas. Creeks and streams around the region could
also become elevated due to runoff. Total rainfall is expected to be
around 1 inch between tonight and Monday night with most falling
during Monday.

Dtx watches warnings advisories
Mi... None.

Lake huron... Gale watch from Monday morning through Monday evening for
lhz361>363.

Lake st clair... None.

Michigan waters of lake erie... None.

Aviation... ..Drk
discussion... Mr
marine... ... .Drk
hydrology... .Drk
you can obtain your latest national weather service forecasts online
at

Weather Reporting Stations
   EDIT       (on/off)   Help   NOTE: Click on distance to see the station location on a map
Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
THLO1 - Toledo Light No. 2 OH 3 mi37 min SSE 2.9 G 2.9 35°F
THRO1 - 9063085 - Toledo, OH 15 mi39 min N 4.1 G 5.1 36°F 1017.8 hPa34°F
SBIO1 - South Bass Island, OH 26 mi57 min S 5.1 G 6 37°F 1019.1 hPa (+0.0)
MRHO1 - 9063079 - Marblehead, OH 34 mi39 min ESE 1 G 4.1 36°F 1018.7 hPa36°F
HHLO1 - Huron Light, OH 48 mi57 min WNW 1.9 G 7 39°F 1016.9 hPa (-0.4)
CLSM4 - St. Clair Shores, MI 49 mi57 min SSW 1.9 G 4.1 36°F 1019 hPa (+0.7)

Wind History for Toledo, OH
(wind in knots)    EDIT      (on/off)   Help
8
AM
9
AM
10
AM
11
AM
12
PM
1
PM
2
PM
3
PM
4
PM
5
PM
6
PM
7
PM
8
PM
9
PM
10
PM
11
PM
12
AM
1
AM
2
AM
3
AM
4
AM
5
AM
6
AM
7
AM
Last
24hr
SW7
G13
SW7
G12
SW9
G14
SW8
G16
SW8
G14
SW10
G14
SW9
G13
SW7
G11
SW7
G12
SW6
G11
SW6
G10
SW7
G11
SW4
G8
SW6
G10
SW7
G10
SW6
G11
SW5
G9
SW4
G7
SW4
SW3
G6
S3
S2
SW4
S1
1 day
ago
SW11
G20
SW11
G17
SW11
G19
SW11
G21
SW13
G18
SW11
G17
SW10
G18
SW13
G26
SW12
G20
SW11
G18
SW14
G20
SW16
G22
SW15
G21
SW12
G23
SW14
G22
SW16
G24
SW13
G21
SW15
G22
SW12
G20
SW10
G16
SW12
G18
SW10
G15
SW10
G15
SW8
G14
2 days
ago
SW10
G17
SW11
G16
SW11
G18
SW10
G17
SW12
G17
SW10
G15
SW11
G16
SW12
G19
SW11
G19
SW11
G18
SW11
G20
SW13
G19
SW12
G20
SW12
G18
SW12
G20
SW10
G18
SW12
G18
SW10
G18
SW10
G16
SW10
G16
SW11
G17
SW11
G16
SW8
G14
SW9
G16

Airport Reports
    EDIT      (on/off)   Help   Click EDIT to display multiple airports
AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Monroe, Custer Airport, MI12 mi79 minN 01.75 miFog/Mist36°F33°F93%1018.3 hPa
Detroit/Grosse Ile, Grosse Ile Airport, MI19 mi62 minS 41.00 miFog/Mist34°F33°F98%1018.3 hPa
Toledo - Toledo Executive Airport, OH22 mi64 minN 00.50 miFog37°F36°F96%1019 hPa
Lambertville, Toledo Suburban Airport, MI23 mi62 minN 00.25 miFog36°F34°F96%1018.3 hPa

Wind History from TTF (wind in knots)
9
AM
10
AM
11
AM
12
PM
1
PM
2
PM
3
PM
4
PM
5
PM
6
PM
7
PM
8
PM
9
PM
10
PM
11
PM
12
AM
1
AM
2
AM
3
AM
4
AM
5
AM
6
AM
7
AM
8
AM
Last 24hrSW11SW12SW11
G17
SW16SW13SW15
G19
SW11SW10
G15
SW10
G15
SW7SW6CalmCalmSW6W5SW6SW5W4SW4CalmCalmCalmCalmCalm
1 day agoSW11SW15
G19
SW16
G22
SW14
G20
SW14
G21
SW15SW13
G20
SW11SW9
G15
SW9SW11
G18
SW12SW11
G18
SW12
G18
SW17
G24
SW19
G28
SW17
G27
SW15
G24
SW14
G19
SW12
G20
SW13
G18
SW12SW11SW10
2 days agoSW9SW9
G17
SW13
G19
SW15SW11W13SW12
G19
SW13
G17
SW14
G18
SW13SW9
G14
SW11SW15
G25
SW15
G23
SW13
G19
SW13SW11SW11SW11
G15
SW12
G15
SW11SW11SW10
G16
SW11
G16

Tide / Current Tables for
   EDIT   RT Ports Option   Weekend mode (on/off)   (on/off)   Help
Tide / Current Tables for
   EDIT      (on/off)   Help
Weather Map and Satellite Images
       (on/off)   Help
Weather Map
wmap_A
IR Satellite Image from GEOS
east_satellite

GOES Local Image of GreatLakes    EDIT
Geos

Wind Forecast for Detroit/Pontiac, MI (7,2,3,4)
      (on/off)   Help

Ground Weather Radar Station Detroit, MI
   (on/off)   Help
weather_mapweather_map weather_map

Ad by Google

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.