Marine Weather and Tide Forecast for Worthington, OH

NEAR TERM /UNTIL 6 AM WEDNESDAY MORNING/
A closed H5 low over western Kentucky will slowly wobble northeast through our CWA tonight. Scattered to numerous thunderstorms early this evening will decrease in intensity late before slowly dissipating after midnight. Light winds will continue under the weak pressure gradient. Slow storm motion could lead to localized flooding if back-building occurs... especially across northern Kentucky and southwest Ohio in closest proximity to the low.

SHORT TERM /6 AM WEDNESDAY MORNING THROUGH WEDNESDAY NIGHT/
On Wednesday, the upper low will begin to open into a wave during the day before exiting to our northeast overnight. Coverage under the wave looks to be less than today; though can't rule out scattered storm coverage -- especially across our eastern areas. The surface pressure pattern continues to be relaxed, so light winds prevail.

There will be a pronounced decrease in precipitation Wednesday night due to increasing heights behind the departing wave. Decreasing clouds will allow temperatures to drop to around 60 degrees by morning.

LONG TERM /THURSDAY THROUGH TUESDAY/
Mid level ridging will be building across the area as a short wave pivots well northwest of the region. Atmosphere will become rather unstable but also capped. With better forcing lifting across the Great Lakes away from the area, it seems like a rather low potential for convection developing during the day. There is some greater possibility heading into the evening across the far northern counties.

A weak surface trough will slide into the area later Thursday night, and some activity could occur ahead of that across southern counties early Friday. But otherwise, Friday could be fairly quiet until late in the day and more likely on Friday night as a short wave lifts northeast across the area. This may be the time period with the greatest potential for severe storms with shear and instability aligning across southern counties and points south.

Cold front will then move through the area on Saturday. There is a bit of a window for some instability to redevelop in eastern counties, but at this point the potential for storms looks low.

High pressure builds in for early next week resulting in dry conditions Sunday and Monday. The chance for showers and storms will return on Tuesday as a warm front lifts towards the region.

Temperatures will be above normal, with only a modest decrease in readings in the wake of the cold front.

AVIATION /19Z TUESDAY THROUGH SUNDAY/
Convective initiation has occurred across the region as of the 18Z issuance with isolated coverage. Based on the latest high-resolution guidance, coverage is likely to increase through late afternoon before starting to decrease heading into the evening. A few of these storms may contain heavy rates of rainfall, so have visibility restrictions included accordingly.

Outside of a few showers, the overnight will be comparatively quiet.
Winds will continue to be very light under the broad upper low.
In the moist environment, ceilings are expected to drop to MVFR levels by morning.

OUTLOOK...Thunderstorms are possible Wednesday afternoon, then again at times from Thursday night through Saturday. MVFR ceilings are possible Wednesday morning.

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