Saturday, August19, 2017 L-36.com


Marine Weather and Tides
Flat Rock, OH

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 6:43AMSunset 8:24PM Saturday August 19, 2017 2:40 PM EDT (18:40 UTC) Moonrise 3:14AMMoonset 6:01PM Illumination 7% Phase: Waning Crescent; Moon at 27 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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LEZ144 Lake Erie Nearshore Waters From Maumee Bay To Reno Beach Oh- Lake Erie Nearshore Waters From Reno Beach To The Islands Oh- Lake Erie Nearshore Waters From The Islands To Vermilion Oh- 349 Am Edt Sat Aug 19 2017
Today..Southwest winds 5 to 10 knots becoming northwest. Scattered showers and Thunderstorms early...then isolated showers and Thunderstorms from late morning on. Waves 1 foot or less.
Tonight..West winds 5 to 10 knots becoming southwest. Mostly clear. Waves 1 foot or less.
Sunday..Southwest winds 5 to 10 knots becoming south. Sunny. Waves 1 foot or less.
Sunday night..South winds 10 knots or less. Mostly clear. Waves 1 foot or less. Winds and waves higher in and near Thunderstorms. SEe lake erie open lakes forecast for Monday through Wednesday. The water temperature off toledo is 76 degrees...off cleveland 74 degrees and off erie 74 degrees.
LEZ144 Expires:201708191415;;611278 FZUS51 KCLE 190749 NSHCLE Nearshore Marine Forecast National Weather Service Cleveland OH 349 AM EDT Sat Aug 19 2017 For waters within five nautical miles of shore 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. LEZ142>144-191415-

7 Day Forecast for Marine Location Near Flat Rock, OH
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location: 41.2, -82.89     debug


Area Discussion for - Cleveland, OH
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Fxus61 kcle 191743
afdcle
area forecast discussion
national weather service cleveland oh
143 pm edt Sat aug 19 2017

Synopsis
Weak low pressure associated with a disturbance aloft will drop
across the lower great lakes and ohio valley today. High
pressure will build across the ohio valley and eastern great
lakes Sunday, then move east of the area on Monday. The next low
will move northeast across the great lakes Tuesday and take a
cold front across the local area Tuesday night.

Near term through Sunday
Update... Expanded likely pops slightly in the south southeast so
formatters will get likely wording into the zone forecast.

Previous discussion... Fairly sharp shortwave upper trough to
cross the area today. The surface reflection is rather weak
though. Mid high clouds already beginning to overspread the area
before dawn. System will be working with limited moisture so
expect shower thunderstorm coverage to be scattered at best.

Latest guidance brings the small cluster of storms from northern
in into northwest oh followed by a diurnal lull and then a
flare up again along or just east of the i-71 corridor. Marginal
instability with daytime heating and decent lapse rates with
the trough could produce a few feisty storms but by the time
that all comes together activity should be across eastern
counties and it would not be much longer before it would be out
of the county warning area. Overall this is a quick system and
any one place has just a few hours for the threat for
precipitation. Highs a little on either side of 80 degrees.

Clearing and light variable winds in the wake of today's
disturbance for tonight. This may introduce a patchy fog for
early Sunday morning. With high pressure building overhead,
Sunday will be quiet with partly cloudy afternoon skies and
seasonable temperatures.

Short term Sunday night through Tuesday night
High pressure will drift across the region Sunday night with it east
of the area on Monday. This will allow southerly winds to develop
and begin the return flow of moisture. Warm advection and some weak
convergence along a lake boundary may be enough to cause an
isolated thunderstorm across inland NW pa and maybe over NW oh. For
the most part expect to see some afternoon cumulus with highs in the
mid to upper 80s. Thunderstorm chances will increase after midnight
Monday night but the best chances arrive Tuesday afternoon into the
evening as the cold front moves across the region. Thunderstorms
will end from west to east overnight with the cold front passage.

Cooler Tuesday with the added cloud cover and thunderstorms but highs
will still reach the lower to mid 80s. A gradual decrease in
humidity Tuesday night with lows in the lower to mid 60s.

Long term Wednesday through Friday
There could be some lingering showers across NE oh NW pa into
Wednesday afternoon. High pressure will begin to increase its
influence at the surface Wednesday night into Thursday. However
another upper level trough will be approaching. This trough will
cross the area on Thursday but with low level moisture in question
we will not place more than 20 percent pop's in the forecast. By
Friday high pressure should take control of the area.

Cooler temperatures area expected through the long term forecast
with highs in the lower to mid 70s. Lows most locations will dip
into the 50s. A few upper 40s may occur across inland NW pa by
Friday night.

Aviation 18z Saturday through Thursday
Convergence increasing across inland nern oh along a developing
surface trough. Satellite show CU field beginning to enhance and
would anticipate showers and thunderstorm development within the
next hour or two. Will carry vcts at kcak and kyng through 21z.

May have to add an hour or so to that but will wait for
development. Elsewhere am expecting primarilyVFR conditions as
drier air moves in behind the trough aloft which is moving
through the region.

Outlook... Non-vfr possible in scattered showers tstms on
Tuesday.

Marine
A reinforcing surge of cooler air will move across the area this
afternoon with an upper level trough. Westerly winds will persist
through the day and may become strong enough to produce 2 to 4 foot
waves from willowick to ripley. There is a possibility of waves
building to 3 to 5 feet for a few hours mid afternoon into the
evening. Later shifts will need to watch this potential as winds
shift around to the northwest this afternoon.

High pressure will then build across lake erie tonight into Sunday.

This high will shift east of the region on Monday as the next area
of low pressure moves into the western great lakes by Tuesday.

Southwesterly winds will increase ahead of a cold front on Tuesday.

Winds will likely be the strongest in the wake of the cold front
Tuesday night into Wednesday with strong cold advection anticipated.

This should be enough to require small craft advisories.

Cle watches warnings advisories
Oh... None.

Pa... None.

Marine... None.

Synopsis... Oudeman
near term... Tk oudeman
short term... Mullen
long term... Mullen
aviation... Tk
marine... Mullen


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
HHLO1 - Huron Light, OH 23 mi41 min NNE 5.1 G 6 72°F 1013.2 hPa (+0.7)
OWXO1 - Old Woman Creek, OH 24 mi56 min NW 2.9 76°F 1014 hPa66°F
MRHO1 - 9063079 - Marblehead, OH 25 mi41 min WNW 6 G 8 73°F 1014.1 hPa (+0.5)66°F
SBIO1 - South Bass Island, OH 30 mi41 min NW 8.9 G 8.9 74°F 1013 hPa (+0.3)
45165 40 mi21 min WNW 3.9 G 9.7 77°F 78°F1 ft63°F
LORO1 42 mi71 min 9.9 G 13
45005 - W ERIE 28NM Northwest of Cleveland, OH 42 mi31 min W 7.8 G 9.7 72°F 75°F1013.4 hPa65°F
THRO1 - 9063085 - Toledo, OH 46 mi41 min NW 8.9 G 13 78°F 1013.4 hPa (+0.3)58°F
THLO1 - Toledo Light No. 2 OH 46 mi41 min WNW 8.9 G 11 76°F

Wind History for Marblehead, OH
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NE10
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Mansfield - Mansfield Lahm Regional Airport, OH32 mi49 minNW 810.00 miA Few Clouds79°F64°F62%1013.3 hPa

Wind History from MFD (wind in knots)
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Last 24hrW9
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W8W5W4W3W4SW3W3SW3SW5SW3SW3S4S6CalmS5S6S6W5NW7NW8
1 day agoSW14
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S10S8SW10SW9SW8SW7SW8SW7SW8SW6SW5SW8SW8SW8W12
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G17
2 days agoSE63E5E5E6SE5SE5CalmSE3SE6SE6SE7SE7SE7S6S7S7S9S6S10S9S9S12S13
G19

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
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IR Satellite Image from GEOS
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GOES Local Image of GreatLakes    EDIT
Geos

Wind Forecast for Cleveland, OH (14,3,4,5)
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Ground Weather Radar Station Cleveland, OH
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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.