Monday, July24, 2017 L-36.com


Marine Weather and Tides
Bratenahl, 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 6:12AMSunset 8:52PM Monday July 24, 2017 4:51 PM EDT (20:51 UTC) Moonrise 6:36AMMoonset 8:51PM Illumination 2% Phase: Waxing Crescent; Moon at 1 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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LEZ146 Lake Erie Nearshore Waters From The Islands To Vermilion Oh- Lake Erie Nearshore Waters From Vermilion To Avon Point Oh- Lake Erie Nearshore Waters From Avon Point To Willowick Oh- 342 Pm Edt Mon Jul 24 2017
.small craft advisory in effect through late tonight...
Tonight..Northwest winds 15 to 20 knots becoming north 10 to 15 knots. Mostly cloudy. Waves 3 to 5 feet...subsiding to 2 to 4 feet. Waves occasionally around 6 feet.
Tuesday..North winds 5 to 15 knots becoming northeast. Mostly Sunny. Waves 1 to 3 feet.
Tuesday night..Northeast winds 5 to 10 knots becoming southeast. Mostly clear. Waves 1 foot or less.
Wednesday..Southeast winds 10 knots or less becoming south. Sunny. Waves 1 foot or less. SEe lake erie open lakes forecast for Thursday through Saturday. The water temperature off toledo is 78 degrees...off cleveland 73 degrees and off erie 78 degrees.
LEZ146 Expires:201707250215;;770038 FZUS51 KCLE 241942 NSHCLE Nearshore Marine Forecast National Weather Service Cleveland OH 342 PM EDT Mon Jul 24 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. LEZ144>146-250215-

7 Day Forecast for Marine Location Near Bratenahl, OH
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location: 41.56, -81.61     debug


Area Discussion for - Cleveland, OH
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Fxus61 kcle 241946
afdcle
area forecast discussion
national weather service cleveland oh
346 pm edt Mon jul 24 2017

Synopsis
A trough extending from low pressure over the eastern great lakes
will swing south across the area this evening. High pressure will
build over the central great lakes on Tuesday then to the new
england coast on Wednesday. A wave of low pressure will track east
along a cold front over the area on Thursday.

Near term through Tuesday night
Satellite imagery shows cloud cover thickening from the north as a
secondary trough extending from low pressure over the eastern great
lakes slides south across lake erie. As the trough crosses lake
erie, weak convergence over the warm waters of the lake may be
sufficient for a few showers to develop, mainly for points east
of cleveland into NW pa. Anticyclonic flow and subsidence will
reach NW ohio later this evening with clouds attempting to
scatter out. Meanwhile expecting mostly cloudy skies to hold
across the eastern half of the area and gradually drift
southwest later tonight. Went with a blend of the rap NAM lows
for tonight given the expected cloud cover which is slightly
warmer than the MOS guidance.

Clouds will gradually scatter out on Tuesday as we mix out the
shallow moist layer. Clearing across the west half of lake erie will
expand inland with time. Some clouds may linger across pa through
the day where highs will be near 70 degrees again. Temperatures will
be warmer in the west with highs near 80. Any lingering cumulus
should clear out Tuesday night. Lows will generally be in the upper
50s with high pressure overhead and light winds.

Short term Wednesday through Friday Wednesday begins with
high pressure centered over new england extending a ridge back
across lake erie. A cold front will extend northeast southwest
across the western lakes. During the day the ridge weakens
however the airmass across the region will remain dry. Wednesday
night the front will continue to approach the region from the
northwest. By 12z Thursday the front will be near a line from
the thumb of michigan to chicago and is expected to move into
the area during the day. Models a bit different with the
progression of the boundary through the area with the gfs
seemingly drier than the ecmwf. Have shaded the forecast more
toward the ECMWF and will bring likely pops to the region for
Thursday, tapering from west to east Thursday night. Friday will
begin with chance pops east but should dry out quickly with
high pressure building into the region from the northwest.

Seasonal highs to start dropping to a few degrees below normal
by Friday.

Long term Friday evening through Monday
By Friday evening the front is well south of the forecast area and
large area of canadian high pressure will be centered over the great
lakes. The high will remain anchored over the great lakes providing
dry with temps a little below normal into the weekend. GFS tracks
low across the tennessee valley on Saturday but ECMWF is further
south with the system. Either way will be a dry forecast. Another
system tracks into the tennessee valley on Monday. Still appears
far enough south that the forecast should remain dry.

Aviation 18z Monday through Saturday
Vfr stratocu deck in place across the region today with just a
few pockets of MVFR ceilings remaining. Expecting ceilings to
lift toVFR all sites by later this afternoon with clouds
starting to scatter out in NW ohio this evening. NW winds will
be breezy at times this afternoon, mainly at cle eri cak yng. A
trough will swing south across lake erie by 21z with a few
stray showers possible near eri. Any showers will be brief.

Ceilings will tend to lower to MVFR at NE ohio NW pa sites
tonight as wrap around moisture gets trapped beneath a
strengthening inversion.

Outlook... Non-vfr in thunderstorms with a cold front expected
thu.

Marine
Winds currently from the northwest at 15 to 20 knots with gusts into
the mid 20s behind a cold front now south of the lake. Waves central
and east are between 4 and 5 feet. Models show another surface
trough dropping across the lake this evening which should sustain
winds into the evening before diminishing. Will continue with
headlines unchanged however if winds remain up an hour or two longer
waves small craft will need to be extended into Tuesday morning
given the northerly direction. Also for this evening will include
the potential for an isolated waterspout east half given favorable
conditions. Otherwise high pressure will build in for Tuesday
allowing winds and waves to diminish. The next significant weather
maker will be Thursday when a weakening cold front crosses the lake
out of the northwest. Winds with the front are not expected to be a
problem however would expect the need for a small craft advisory by
Friday as north to northeast flow increase to about 15 knots as
building high pressure behind the front tightens the gradient as it
expands east across the lakes and low pressure strengthens in the
lower ohio valley. Northeast flow will continue through Saturday
although at diminished speeds.

Cle watches warnings advisories
Oh... Beach hazards statement through late tonight for ohz009>012-
089.

Pa... Beach hazards statement through late tonight for paz001.

Marine... Small craft advisory until 4 am edt Tuesday for lez144>149.

Synopsis... Kec
near term... Kec
short term... Tk
long term... Djb
aviation... Kec
marine... Tk


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
CNDO1 - 9063063 - Cleveland, OH 2 mi52 min NNW 16 G 19 69°F 58°F
45176 8 mi32 min N 16 G 18 70°F 77°F5 ft1014.8 hPa62°F
45169 12 mi32 min N 16 G 19 70°F 76°F5 ft60°F
45164 13 mi52 min N 19 67°F 76°F1014.1 hPa (+1.3)
FAIO1 - 9063053 - Fairport, OH 22 mi52 min NW 19 G 23 69°F 1014 hPa (+1.5)60°F
LORO1 31 mi82 min 16 G 22
GELO1 - Geneva on the Lake, OH 39 mi70 min NW 21 69°F
45005 - W ERIE 28NM Northwest of Cleveland, OH 43 mi42 min NNW 16 G 19 69°F 77°F1015.1 hPa59°F
OWXO1 - Old Woman Creek, OH 49 mi67 min NW 2.9 71°F 1015 hPa59°F

Wind History for Cleveland, OH
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Cleveland, Burke Lakefront Airport, OH5 mi59 minNW 14 G 2010.00 miOvercast71°F59°F66%1014 hPa
Cleveland / Cuyahoga, OH7 mi67 minNW 10 G 1810.00 miOvercast70°F60°F73%1014.9 hPa
Cleveland Hopkins International Airport, OH16 mi61 minNW 1110.00 miOvercast71°F60°F68%1015 hPa

Wind History from BKL (wind in knots)
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Last 24hrN33NW5W5N4W3W7W8W9SW9SW7SW9SW8CalmN10N11N11N11N15NW15NW12
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1 day agoSW6NW5NW3CalmCalmS4W11W10W10W10NW9NW9W6W6W6W5W5NW7W9--NW8W7NW6NW6
2 days agoN7N7N5NE4NE4NE4CalmSE3SE6SE4CalmSE5SE7SE7S10SE9SE5S5S6SW6NW3CalmSW7SW7

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 Cleveland, OH (16,3,4,5)
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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.