Thursday, July29, 2021
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Marine Weather and Tides
Worthington, OH

Version 3.4
NOTICE
3/30/2021 -- ANZ330 has been split into ANZ331 and ANZ332. Click EDIT in Marine Forecast and select your new zone.
1/26/2021 -- The West Coast Satellite images havd been updated. They now use GEOS-17.
1/1/2021 -- The 7 day forecast are now working well. Thank you NOAA for your support.

Sunrise 6:26AMSunset 8:50PM Thursday July 29, 2021 12:26 PM EDT (16:26 UTC) Moonrise 11:10PMMoonset 11:14AM Illumination 72% Phase: Waning Gibbous; Moon at 20 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 Expires:202107291430;;629323 Fzus51 Kcle 290742 Nshcle Nearshore Marine Forecast National Weather Service Cleveland Oh 342 Am Edt Thu Jul 29 2021 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>144-291430- Maumee Bay To Reno Beach Oh-reno Beach To The Islands Oh- The Islands To Vermilion Oh- 342 Am Edt Thu Jul 29 2021
Today..Southwest winds 10 to 15 knots becoming west. Showers likely with a chance of Thunderstorms this morning, then a chance of showers and Thunderstorms this afternoon. Waves 1 to 3 feet.
Tonight..Northwest winds 5 to 15 knots becoming north 15 to 20 knots. A slight chance of showers and Thunderstorms in the evening. Waves 2 feet or less building to 2 to 4 feet.
Friday..North winds 15 to 20 knots diminishing to 10 to 15 knots. Mostly Sunny. Waves 2 to 4 feet subsiding to 1 to 3 feet.
Friday night..Northeast winds 5 to 10 knots becoming south. Partly cloudy. Waves 1 to 3 feet subsiding to 1 foot or less. Winds and waves higher in and near Thunderstorms. 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 76 degrees.
LEZ144


7 Day Forecast for Marine Location Near Worthington, OH
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location: 40.1, -83.02     debug


Area Discussion for - Wilmington, OH
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FXUS61 KILN 291403 AFDILN

AREA FORECAST DISCUSSION National Weather Service Wilmington OH 1003 AM EDT Thu Jul 29 2021

SYNOPSIS. Showers and thunderstorms will weaken as they move into the area this morning. But additional storms will develop this afternoon ahead of a cold front. Once the front moves through tonight, temperatures will become slightly below normal and remain that way into next week.

NEAR TERM /UNTIL 6 PM THIS EVENING/. MCS has weakened substantially this morning and is primarily east of I-71 as of 14z. There is still some convection that will cross through Delaware and Licking counties associated with an MCV that has formed in the northern tier of this system. Elsewhere, just a few light showers are possible, mainly east of I-71 this morning. Have trended PoPs lower in our west-central Ohio and Miami Valley counties this morning with this precipitation pushing eastward.

Visible satellite imagery shows a clear sector beginning to form in portions of NE Indiana into NW Ohio behind this system. Most locations west of I-71 will begin to observe more breaks in the clouds this morning which will help increase insolation and total amount of destabilization. With the lull in precipitation, the best instability looks to be in our western counties down into the Tri-state area. SREF ensemble mean still has around 3000 J/kg of MLCAPE developing this afternoon closer towards the Cincinnati metro. While CAMs are in moderate disagreement (between each other and consecutive runs of the same model) in the evolution and location of afternoon storms, there does appear to be a more prominent signal for the strongest convection developing in portions of Illinois/Indiana which will sink southward and impact portions of our southwestern counties later this afternoon. The timeframe of greatest concern is currently from about 4pm-9pm for our western counties down into the Tri-state area. The primary threat is still for damaging winds and large hail with localized flooding possible due to the heavy downpours. While our environment isn't the most favorable for tornadoes, there are still a number of parameters advantageous for tornadogenesis, and therefore cannot rule out an isolated tornado forming during the storms this afternoon/evening. For our remaining eastern locations, there appears to be greater uncertainty with the development and organization of storms. Expecting there to be isolated to scattered storms that begin firing off again around 18z if not slightly earlier, with PoPs diminishing from north to south beginning in the late afternoon/early evening. The primary severe threat looks to end by the late evening hours, but there still may be a few storms that linger until about midnight.

SHORT TERM /6 PM THIS EVENING THROUGH 6 PM FRIDAY/. Storms will probably still be ongoing at the beginning of the period but then clear the area in the evening. Severe threat will continue until that happens. Cannot rule out some additional showers dropping into central Ohio as a cold front moves through later in the night. The front will move through the entire area by daybreak Friday. High pressure will then start to build in on Friday with conditions being not quite as warm and not as humid.

LONG TERM /FRIDAY NIGHT THROUGH WEDNESDAY/. Area will be under a northwest flow aloft to start the long term, with a broad trough present over the Eastern CONUS. Weak surface high pressure forming beneath the confluent upper flow should provide mainly dry conditions Friday night and Saturday, though a weak disturbance may trigger a few showers in southwest counties. A limited threat for showers and thunderstorms spreads across the entire FA Sunday as a batch of short wave energy rounding the base of the sharpening upper trough enhances lift. A lack of weather producing features and moisture points to mainly dry weather for Monday through Wednesday, with precip chances confined to isolated showers and thunderstorms Wednesday due to disturbances associated with the persistent upper trough.

Lower than average geopotential heights signal below normal temperatures through the period. Expect highs within a few degrees of 80 Saturday through Tuesday, rising to the low and mid 80s Wednesday.

AVIATION /14Z THURSDAY THROUGH MONDAY/. Visibility restrictions at KLUK and KILN should diminish early. Thunderstorms moving out of northern Indiana will likely impact KDAY early and may also affect KCMH/KLCK. There will be a lull until the afternoon when thunderstorms will likely redevelop. Southwest winds will increase to 10 to 15 kt. Quite a bit of uncertainty how storms evolve so have maintained continuity with a broad TEMPO group. Cold front will pass across the region bringing a wind shift. Behind the front, MVFR ceilings will likely develop.

OUTLOOK. MVFR ceilings likely Friday morning.

ILN WATCHES/WARNINGS/ADVISORIES. OH . None. KY . None. IN . None.

SYNOPSIS . NEAR TERM . Clark SHORT TERM . LONG TERM . Coniglio AVIATION .


Weather Reporting Stations
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On 03/09/2021 the NDBC primary processing servers were shut off due to a facilities issue. Station pages on the NDBC website are not updating and there is no ETR at this time. We will update this banner as we learn more.
Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
HHLO1 - Huron Light, OH 93 mi26 min WSW 12 G 20 79°F 1010.2 hPa (-0.3)

Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Columbus, Ohio State University Airport, OH3 mi33 minS 85.00 miFair with Haze78°F73°F85%1013.8 hPa
John Glenn Columbus International Airport, OH10 mi35 minS 76.00 miFog/Mist76°F73°F91%1013.7 hPa
Columbus, Bolton Field Airport, OH15 mi36 minSW 85.00 miFog/Mist77°F73°F89%1015.2 hPa
Rickenbacker Air National Guard Base, OH19 mi31 minS 85.00 miFog/Mist76°F74°F93%1014.9 hPa
Marysville Union County Airport, OH20 mi31 minWSW 97.00 miFair79°F73°F82%1014.6 hPa

Link to 5 minute data for KOSU

Wind History from OSU (wind in knots)
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Last 24hr3CalmNW5NW7NW5W8W7W5W4SW5CalmCalmSE3CalmS4SW5SW3S3SW4SW7SW7CalmS4S8
1 day agoW74NW7NW3W4W5NW6W6W3CalmW3CalmW3W3CalmW4W4W3W3W4CalmNW7N5NW9
2 days agoN9NW104N7
G17
N9NW8N6N7N4CalmCalmCalmW3N3CalmCalmCalmCalmCalmCalmCalmCalmS3W6

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NOTE: This section has been updated as of 1/26/2021. If the image you are expecting is not showing, please let me know. You may use the EDIT function to update your location.
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