Marine Weather and Tides
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 6:26AM||Sunset 8:50PM||Thursday July 29, 2021 12:26 PM EDT (16:26 UTC)||Moonrise 11:10PM||Moonset 11:14AM||Illumination 72%|
7 Day Forecast for Marine Location Near Worthington, OHHourly EDIT Help
Area Discussion for - Wilmington, OH  (on/off)  Help NOTE: mouseover dotted underlined text for definition
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 StationsEDIT (on/off)  Help NOTE: Click on distance to see the station location on a map
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 Temp||Water Temp||Waves||Pressure||DewPt|
|HHLO1 - Huron Light, OH||93 mi||26 min||WSW 12 G 20||79°F||1010.2 hPa (-0.3)|
Airport ReportsEDIT (on/off)  Help Click EDIT to display multiple airports. Follow links for more data.
|Columbus, Ohio State University Airport, OH||3 mi||33 min||S 8||5.00 mi||Fair with Haze||78°F||73°F||85%||1013.8 hPa|
|John Glenn Columbus International Airport, OH||10 mi||35 min||S 7||6.00 mi||Fog/Mist||76°F||73°F||91%||1013.7 hPa|
|Columbus, Bolton Field Airport, OH||15 mi||36 min||SW 8||5.00 mi||Fog/Mist||77°F||73°F||89%||1015.2 hPa|
|Rickenbacker Air National Guard Base, OH||19 mi||31 min||S 8||5.00 mi||Fog/Mist||76°F||74°F||93%||1014.9 hPa|
|Marysville Union County Airport, OH||20 mi||31 min||WSW 9||7.00 mi||Fair||79°F||73°F||82%||1014.6 hPa|
Link to 5 minute data for KOSU
Wind History from OSU (wind in knots)
|1 day ago||W||NW||NW||W||W||NW||W||W||Calm||W||Calm||W||W||Calm||W||W||W||W||W||Calm||NW||N||NW|
|2 days ago||N||NW||N|
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