Thursday, August13, 2020
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Marine Weather and Tides
Sheffield Lake, OH

Version 3.4
NOTICE
12/16/2019 NOAA is having trouble with requests that include wind gusts. I am posting graphs without wind gusts until it gets fixed.
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.

Sunrise 6:34AMSunset 8:31PM Thursday August 13, 2020 12:24 PM EDT (16:24 UTC) Moonrise 12:11AMMoonset 3:17PM Illumination 27% Phase: Waning Crescent; Moon at 24 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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LEZ145 Expires:202008132015;;388838 Fzus51 Kcle 131406 Nshcle Nearshore Marine Forecast National Weather Service Cleveland Oh 1006 Am Edt Thu Aug 13 2020 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>147-132015- 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- Lake Erie Nearshore Waters From Willowick To Geneva-on- The Lake Oh- 1006 Am Edt Thu Aug 13 2020
This afternoon..Northeast winds 10 to 15 knots becoming north 15 to 20 knots. Sunny. Waves 1 to 3 feet building to 2 to 4 feet.
Tonight..Northeast winds 15 to 20 knots becoming east 5 to 15 knots. Partly cloudy in the evening, then becoming mostly cloudy. Waves 2 to 4 feet subsiding to 1 to 3 feet.
Friday..East winds 5 to 15 knots becoming northeast 15 to 20 knots. Partly Sunny. Waves 1 to 3 feet building to 2 to 4 feet.
Friday night..Northeast winds 15 to 20 knots becoming east 5 to 15 knots. A chance of showers overnight. Waves 2 to 4 feet subsiding to 1 to 3 feet. SEe lake erie open lakes forecast for Saturday through Monday. The water temperature off toledo is 77 degrees, off cleveland 75 degrees, and off erie 77 degrees.
LEZ145


7 Day Forecast for Marine Location Near Sheffield Lake, OH
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location: 41.48, -82.1     debug


Area Discussion for - Cleveland, OH
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FXUS61 KCLE 131326 AFDCLE

Area Forecast Discussion National Weather Service Cleveland OH 926 AM EDT Thu Aug 13 2020

SYNOPSIS. High pressure will persist over the area today and begin to move eastward out of the area tomorrow. A cold front will move through the area on Sunday into Monday. Another high pressure system is expected to build across the area behind the cold front on Tuesday.

NEAR TERM /THROUGH FRIDAY/. Mostly quiet conditions across the area this morning with observed forecast temperatures surpassing forecast temperatures by a few degrees under mostly sunny skies. Raised high temperatures by a degree or two, especially in the southeast portion of the area. Widespread mid to upper 80s expected across the area today with perhaps near 90 degrees possible near Akron/Canton.

Previous Discussion . The near term forecast period remains rather quiet through Thursday night and most of Friday as a dry, warm are mass remains stationed over the area inhibiting any shower development from occurring. Temperatures today will approach the mid to upper 80s across the area with dewpoints remaining in the low 60s. Overnight lows will be in the mid 60s.

On Friday, model diverge a bit in agreement with the placement of a shortwave trough that develops over the Mississippi Valley and how it may impact the CWA. The main question will be if showers and thunderstorms will progress far enough north into the southern counties or if the associated low at the surface will remain far enough south that minimal impacts are felt in this area. Currently models suggest low level moisture making its way into the low half of the CWA along with a vorticity maxima moving over the area as a result from the shortwave. With these things in mind, opted to go with chance PoPs for the lower half of the CWA for Friday afternoon into the evening. This system will need to continue to be monitored for its evolution and to determine its exact track. High temperatures on Friday will be in the mid to upper 80s.

SHORT TERM /FRIDAY NIGHT THROUGH SUNDAY NIGHT/. A slow moving upper level wave will be moving eastward across the Ohio Valley Friday night through Sunday. A weak surface low associated with this system will also be moving across the lower Ohio Valley into the Mid-Atlantic Region by Sunday. Model guidance indicate there will be a good chance for widespread showers and isolated thunderstorms throughout the weekend, especially Saturday and Saturday night. Storm total rainfall amounts will average 1.0 to 1.5 inches across the area for this weekend. An upper level trough developing and digging down across the Great Lakes region late on Sunday will help kick this slowing moving system out of the Ohio Valley. A cold front will move through the region Sunday night.

LONG TERM /MONDAY THROUGH WEDNESDAY/. A broad upper level trough centered near the Hudson Bay and stretching down into the Great Lakes region early next week will be the main weather pattern. The overall pattern looks cooler with periodic waves of clouds and showers. There will be an upper level shortwave rounding the base of the upper level trough Monday afternoon with a chance for scattered showers and cloud cover. This setup may happen again on Tuesday as well. Highs will be cooler than average in the middle to upper 70s and overnight low temperatures away from the lake will be in the 50s.

AVIATION /12Z Thursday THROUGH Monday/. VFR conditions will persist through the TAF period for all terminals. With high pressure persisting over the area, the associated dry air mass will inhibit any precipitation from developing and will limit widespread cloud development. Only concern for this period will be for CLE as northeast winds at 5 to 10 knots may occasionally gust up to 20 knots. These gusty winds should subside near 00Z. The rest of the terminals can expect north to northeast winds at 5 to 10 knots through the period.

Outlook . Non-VFR with isolated to scattered showers and thunderstorms Friday night through Sunday night.

MARINE. A weak surface low pressure system south of the lake and high pressure north of the lake will result in a slight increase in east to northeast flow on the lake today and again on Friday. Right now the northeast winds look like they will stay just below Small Craft Advisory level for today but close. Winds today will be about 15 to 20 knots and waves will be 2 to maybe 4 feet. We will hold off on any lake headlines but this is something the day shift may need to take another look at. We may have a better chance of meeting SCA criteria on Friday with the northeast flow increasing to 20 knots and waves more likely around 4 feet. The easterly flow on the lake will continue through Saturday night and conditions will not be the best on the lake into the weekend. The surface low finally exits the region on Sunday with a northerly flow on the back side. A cooler weather pattern will setup with northerly flow on the lake early next week. With colder air aloft and instability due to warm lake water, there could be a couple days where waterspouts are possible early next week.

CLE WATCHES/WARNINGS/ADVISORIES. OH . None. PA . None. MARINE . None.

SYNOPSIS . Campbell NEAR TERM . Campbell/Kahn SHORT TERM . Griffin LONG TERM . Griffin AVIATION . Campbell MARINE . Griffin


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
LORO1 5 mi54 min ENE 12 G 15 76°F
45005 - W ERIE 28NM Northwest of Cleveland, OH 21 mi34 min ENE 12 G 16 76°F 76°F2 ft1019.1 hPa68°F
OWXO1 - Old Woman Creek, OH 23 mi99 min NE 1.9 77°F 1020 hPa68°F
HHLO1 - Huron Light, OH 24 mi24 min ENE 12 G 13 77°F 1018.3 hPa (-0.7)
CNDO1 - 9063063 - Cleveland, OH 25 mi54 min NE 8.9 G 11 75°F 74°F1019.5 hPa61°F
45164 28 mi84 min 76°F2 ft
MRHO1 - 9063079 - Marblehead, OH 34 mi54 min NNE 6 G 8 75°F 75°F1018.6 hPa69°F
FAIO1 - 9063053 - Fairport, OH 48 mi54 min ENE 14 G 15 76°F 77°F1018.5 hPa67°F
CMPO1 49 mi114 min NE 11 78°F

Wind History for Cleveland, OH
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Lorain / Elyria, Lorain County Regional Airport, OH10 mi31 minENE 710.00 miFair81°F62°F53%1019.1 hPa
Cleveland Hopkins International Airport, OH13 mi33 minN 810.00 miPartly Cloudy81°F60°F49%1019.4 hPa
Cleveland, Burke Lakefront Airport, OH22 mi31 minNE 89.00 miFair81°F61°F51%1018.5 hPa

Link to 5 minute data for KLPR

Wind History from LPR (wind in knots)
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Last 24hrNE8NE8N7NE7NE10NE7NE7E5NE4NE4NE5E4CalmCalmCalmCalmNW4CalmCalmCalmNE4NE5NE5NE7
1 day agoSW7W8NW7W6SW10SW8W6W7W4W4W4CalmNE4NE4CalmCalmCalmCalmCalmCalmCalmNE8NE8NE9
2 days agoSW11W7SW11S13S11S13SW7SW6SW5S6SW7SW8S8S8SW7W5W6SW8W6W6W7W96W8

Tide / Current Tables for
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Tide / Current Tables for
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Weather Map
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GEOS Local Image of    EDIT
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 (12,3,4,5)
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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 numerous 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.