Thursday, August13, 2020
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Marine Weather and Tides
Geneva, 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 6:28AMSunset 8:27PM Thursday August 13, 2020 1:48 PM EDT (17:48 UTC) Moonrise 12:06AMMoonset 3:13PM 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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LEZ148 Lake Erie Nearshore Waters From Geneva-on-the-lake To Conneaut Oh- Lake Erie Nearshore Waters From Conneaut Oh To Ripley Ny- 327 Am Edt Thu Aug 13 2020
Today..East winds 5 to 15 knots becoming north 15 to 20 knots. Sunny. Waves 1 to 3 feet.
Tonight..Northeast winds 5 to 15 knots becoming east. Partly cloudy. Waves 1 to 3 feet.
Friday..East winds 5 to 15 knots becoming northeast. Sunny. Waves 1 to 3 feet.
Friday night..Northeast winds 5 to 15 knots becoming east. Partly cloudy in the evening, then becoming mostly cloudy. Waves 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.
LEZ148 Expires:202008131415;;373598 FZUS51 KCLE 130727 NSHCLE Nearshore Marine Forecast National Weather Service Cleveland OH 327 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. LEZ148-149-131415-


7 Day Forecast for Marine Location Near Geneva, OH
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location: 41.8, -80.95     debug


Area Discussion for - Cleveland, OH
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FXUS61 KCLE 131728 AFDCLE

Area Forecast Discussion National Weather Service Cleveland OH 128 PM EDT Thu Aug 13 2020

SYNOPSIS. High pressure will begin to move northeastward into Canada tonight through tomorrow. A cold front will move through the area Sunday evening. Behind the front, another large area of high pressure will build in across the region.

NEAR TERM /THROUGH FRIDAY NIGHT/. A few isolated showers were observed across extreme NE OH and NW PA early this afternoon, along an instability gradient associated with a subtle northwestward lifting warm front. Given dry, mid-level air that remains in place across the area, any shower activity should be isolated in nature with a rumble or thunder or two possible as well. The best chance for a stronger isolated thunderstorm would be in the southeast portion of the area later this afternoon, near YNG/CAK as a tongue of slightly higher instability, up to around 1000 J/kg, builds into the area. Highs will reach the mid to upper 80s across the area today with perhaps a few places touching 90.

Subtle warm front appears to dissipate/weaken tonight, though some residual low and mid-level moisture remain which could support a lingering isolated shower or two. By Friday afternoon, lingering low and mid-level moisture across the central and western portion of the area will become amplified from a developing surface low across the Tennessee Valley and aided by daytime heating. Forecast instability is expected to reach 1000 to 1500 J/kg, mainly across NW OH, though much of the activity appears to form just west of Toledo. Highs on Friday will once again reach the mid to upper 80s with dew points in the mid to upper 60s.

Will be continuing to monitor development and movement of the surface low across the Tennessee Valley to see if there are any shower/thunderstorm impacts overnight Friday into early Saturday morning. Too much divergence in model guidance precludes any higher PoP than low-end chance at this time.

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 THURSDAY/. 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 /18Z Thursday THROUGH Tuesday/. VFR conditions across the TAF sites this afternoon with mainly VFR expected through the TAF period. An isolated shower with a rumble of thunder or two cannot be completely ruled out at YNG/CAK this afternoon, though confidence and coverage remain low.

Winds mainly out of the east/northeast this afternoon, around 10 knots. Flow will remain out of the east/northeast overnight as winds diminish to mainly below 5 knots. The exception will be at ERI where a land breeze could develop overnight, shifting winds southeasterly, around 10 knots.

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

MARINE. Small Craft and Beach hazards have been issued due to current observations over the lake.

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 . 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 Friday for LEZ144>149.

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


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
GELO1 - Geneva on the Lake, OH 4 mi78 min ENE 14 G 17 92°F
FAIO1 - 9063053 - Fairport, OH 18 mi48 min ENE 17 G 20 77°F 78°F1018 hPa (-0.9)68°F
45164 40 mi48 min 77°F3 ft
CNDO1 - 9063063 - Cleveland, OH 41 mi48 min ENE 9.9 G 12 77°F 74°F1019 hPa (-0.9)64°F
45132 - Port Stanley 48 mi48 min E 12 G 16 77°F 77°F1 ft1019.3 hPa

Wind History for Fairport, OH
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Ashtabula - Northeast Ohio Regional Airport, OH13 mi55 minENE 510.00 miMostly Cloudy80°F66°F62%1019.6 hPa

Link to 5 minute data for KHZY

Wind History from HZY (wind in knots)
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Last 24hrNE4E54N644NE3--------Calm------------N3E4NE3NE3N7E5
1 day agoW8NW7NW11NW7NW8NW6NW4CalmCalmCalm--------------------E4E5NE4NE4
2 days agoSW7S6S8S9S6S6S3SE3CalmS5S5S6S6S4S7W7S5S6SW4W8W8W6SW7SW6

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.
Link to Loop

Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for Cleveland, OH (13,3,4,5)
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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 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.