Friday, December13, 2019
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Marine Weather and Tides
Rocky River, OH

Version 3.4
NOTICE
10/9/2019 Updated the Marine Zones.
9/4/2019 Fixed the weather maps due to NOAA moving them.
7/25/2019 New feature in the Airports section gives a link to 5 minute updates for data reports.
6/2/2019. Many thanks to a user for reporting an error on one of the Edit pages. The switch to PHP 7.2 caused many pages that previously worked to quit working. I fixed many but I still depend on users to report ones I missed. Please report errors HERE or send an email to me at L-36.com. Allen

Sunrise 7:43AMSunset 4:59PM Friday December 13, 2019 9:51 PM EST (02:51 UTC) Moonrise 6:29PMMoonset 9:04AM Illumination 94% Phase: Waning Gibbous; Moon at 17 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 Expires:201912132115;;291565 Fzus51 Kcle 131438 Nshcle Nearshore Marine Forecast National Weather Service Cleveland Oh 938 Am Est Fri Dec 13 2019 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. Lez145>149-132115- Lake Erie Nearshore Waters From Vermilion To Avon Point Oh- Lake Erie Nearshore Waters From Avon Point To Willowick Oh- Lake Erie Nearshore Waters From Willowick To Geneva-on- The Lake Oh-lake Erie Nearshore Waters From Geneva-on-the- Lake To Conneaut Oh- Lake Erie Nearshore Waters From Conneaut Oh To Ripley Ny- 938 Am Est Fri Dec 13 2019
Rest of today..South winds 15 to 20 knots diminishing to 10 to 15 knots. Mostly Sunny late this morning, then becoming mostly cloudy. Waves 2 feet or less.
Tonight..Southeast winds 10 knots or less becoming northeast. A chance of rain in the evening, then rain likely overnight. Waves 1 foot or less.
Saturday..Northeast winds 10 to 15 knots becoming northwest 15 to 20 knots. Rain. Waves 2 feet or less.
Saturday night..Northwest winds 15 to 20 knots becoming west. Snow showers and rain likely in the evening, then snow showers likely overnight. Waves 1 to 3 feet building to 3 to 6 feet. Waves occasionally around 7 feet. SEe lake erie open lakes forecast for Sunday through Tuesday. The water temperature off toledo is 37 degrees, off cleveland 41 degrees, and off erie 39 degrees.
LEZ146


7 Day Forecast for Marine Location Near Rocky River, OH
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location: 41.48, -81.85     debug


Area Discussion for - Cleveland, OH
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FXUS61 KCLE 132320 AFDCLE

Area Forecast Discussion National Weather Service Cleveland OH 620 PM EST Fri Dec 13 2019

SYNOPSIS. A trough of low pressure will move northeast through the Ohio Valley tonight before merging with a stronger system moving up the East Coast Saturday. A cold front will be pulled east across the area as this system pulls away. High pressure will build east across the region on Sunday before another low pressure system move northeast up the Ohio Valley on Monday.

NEAR TERM /THROUGH SATURDAY NIGHT/. Update . Reconfigured pop and weather graphics tonight into Saturday but no major changes.

Original . Southerly flow will bring increasing moisture to the region overnight with lower clouds and patchy fog developing. An area of precipitation can be seen on regional radars developing near the Ohio River which will overspread the region tonight as shortwave energy streams north out of the approaching upper level trough. Precipitation will fill in after midnight and be widespread east of a line from Marion to Sandusky. Precipitation amounts will range from just a few hundredths in NW Ohio up to almost an inch in NW PA. Thermal profiles will be just warm enough for mostly liquid precipitation overnight but could see a mix with snow across NW Ohio and even a brief accumulation if rates pick up towards sunrise. Otherwise rain will gradually pull away from west to east through the day on Saturday as most of the energy with this system shifts to the East Coast. Temperatures on Saturday will only warm a few degrees but should be sufficient for precipitation during the daytime hours to transition back to rain before colder air wraps in from the west late in the day. We will need to keep an eye on the change over timing to snow in NW Pennsylvania as a few wet inches may be possible after sunset. Will let later shifts take another look at timing of the change over and any possible need for an Advisory. As the upper level trough shifts east of the area, deeper system moisture will pull away and could result in a change back over to rain before the colder air arrives. Eventually we will see lake effect snow showers flare up. Conditions are not overly favorable until after 06Z given some veering of the flow with height, but shear decreases towards morning and lift increases in the dendritic growth zone. Snow showers are expected to increase in coverage with a west northwest flow across the lake providing a favorable fetch. A Winter Weather Advisory will likely be needed for Erie County PA but may need to be expanded to other areas as well.

SHORT TERM /SUNDAY THROUGH MONDAY NIGHT/. West flow will continue to allow for lake effect snow showers over the snow belt across northeast OH and northwest PA. There is some uncertainty on where exactly the band will focus . so have made a wide goal post. We will continue to narrow down the focus area over the next 24 hours. Snow will begin to tapper off during the day Sunday. An upper level trough moves east toward western Ohio Sunday night into Monday . bringing another round of precipitation. Snow spreads north across the region Sunday night into Monday morning . with a mix of rain and snow late morning. A warm front will lift north toward southern Ohio . with all rain forecast for much of the area by late Monday night into early Tuesday morning. Surface high pressure will begin building east over Ohio Tuesday morning with precipitation ending from west to east. The one exception will be the snow belt . where snow will linger as cold air filters into the region.

LONG TERM /TUESDAY THROUGH FRIDAY/. Cold air continues to filter into the region Tuesday night through the rest of the work week as an upper low moves southeast across the Great Lakes. Daytime high temperatures on Wednesday look to be the coldest of the week . generally topping out in the mid 20s . just over 10 degrees below normal. Morning low temperatures on Wednesday and Thursday also look chilly . with readings in the mid to upper teens. Wind Chill values bottom out on Wednesday morning . generally single digits for much of the area. There is a little relief on Thursday as subtle upper level ridging impacts the region. Temperatures will warm around 10 degrees . with daytime high temperatures in the mid 30s The area looks to remain dry during this period. with the exception of the snow belt . where some light snow is possible.

AVIATION /00Z Saturday THROUGH Wednesday/. Deep moisture advancing toward the area from the south this evening. Conditions already restricted to MVFR and IFR east third of the area with VFR conditions elsewhere. Expect conditions to continue dropping into the IFR category across much of the area through the evening with IFR reaching west into the TOL and FDY area overnight. Most precip will remain rain although an occasional mix with snow should be expected. IFR will continue Saturday morning with gradual improvement to MVFR from the west during the afternoon.

OUTLOOK. Non-VFR lingers most places into Sunday with scattered snow showers expected at ERI. Non-VFR possible again on Monday and Tuesday with periods of rain and/or snow.

MARINE. A brisk northwest wind will develop on Saturday with waves building during the day Saturday into Sunday. A small craft advisory for these winds and waves was issued beginning Saturday afternoon and evening generally east of Vermilion. For now the small craft continues through Sunday morning . but may need to be extended in the next 24 hours Otherwise. winds diminish to light and variable late Sunday night and then become light east . southeast on Monday.

CLE WATCHES/WARNINGS/ADVISORIES. OH . None. PA . None. MARINE . Small Craft Advisory from 4 PM Saturday to 7 AM EST Sunday for LEZ147>149. Small Craft Advisory from 7 PM Saturday to 7 AM EST Sunday for LEZ145-146.

SYNOPSIS . KEC NEAR TERM . KEC/TK SHORT TERM . Riley LONG TERM . Riley AVIATION . KEC MARINE . Riley


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
CNDO1 - 9063063 - Cleveland, OH 12 mi57 min SSE 1.9 G 5.1 38°F 40°F1011.8 hPa30°F
LORO1 18 mi81 min SSE 9.9 G 11 40°F
FAIO1 - 9063053 - Fairport, OH 36 mi57 min SSE 6 G 7 37°F 36°F1011.8 hPa32°F
OWXO1 - Old Woman Creek, OH 36 mi66 min SSE 1.9 40°F 1011 hPa32°F
HHLO1 - Huron Light, OH 37 mi51 min S 2.9 G 8 40°F 1009.8 hPa (-1.7)
MRHO1 - 9063079 - Marblehead, OH 47 mi57 min SE 2.9 G 4.1 39°F 36°F1011 hPa31°F

Wind History for Cleveland, OH
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Cleveland Hopkins International Airport, OH4 mi60 minSSE 610.00 miOvercast37°F32°F82%1013.4 hPa
Cleveland, Burke Lakefront Airport, OH9 mi58 minSSE 1110.00 miA Few Clouds39°F30°F70%1012 hPa
Lorain / Elyria, Lorain County Regional Airport, OH20 mi58 minS 58.00 miPartly Cloudy36°F30°F79%1012.5 hPa
Cleveland / Cuyahoga, OH21 mi66 minSE 610.00 miPartly Cloudy36°F30°F81%1011.5 hPa

Link to 5 minute data for KCLE

Wind History from CLE (wind in knots)
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Last 24hrS14S13
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S12S11S9S10S8S9S10S11S9S11S8S9S8S8S7S5S6SE6SE7SE9S5SE6
1 day agoSW9SW7SW6SW5S6S5S6S6S5S7S7S7S9S13
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2 days agoW14W13W11W12SW8SW9SW9SW8SW9SW11
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Tide / Current Tables for
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Tide / Current Tables for
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Weather Map
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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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Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for Cleveland, OH (21,6,7,8)
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Ground Weather Radar Station Cleveland, OH
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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.