Marine Weather and Tide Forecast for Boston, KY

SHORT TERM /THROUGH WEDNESDAY NIGHT/
Issued at 334 PM EDT Tue Apr 14 2026

Temperatures have warmed into the upper 70s and lower 80s this afternoon under a mix of sun and clouds. Sfc winds have been gusty today due to steep low level lapse rates, with peak gusts between 20- 30 mph. We remain under the southeastern ridge, which has kept most precip off to our north and west. There are a few cells developing in a WAA zone with deeper moisture convergence and steeper lapse rates across IL, and the latest WoFs paintball runs support isolated to scattered convection across central IL and IN the remaining afternoon, with some potential for a few storms to approach our northernmost corner of the forecast area. According to mesoanalysis, we have destabilized to around 1500 J/kg of SBCAPE across along and north of the Ohio River. With effective bulk shear between 35-40kts, the environment is supportive for thunderstorms, but we lack any trigger to initiate. Will watch for any storms that sneak near the area, and monitor any development along any outflow. SPC has kept the marginal risk clipped in our northern corner, but any severe potential near our area will really be for central IN and OH. Dry weather is expected overnight, with mild temps only getting down into the 60s as we remain in a WAA pattern.

Another warm and breezy day tomorrow, with highs in the mid to upper 80s, and gusty southwest winds up to 25 mph or so. The southeastern ridge will remain through tomorrow, keeping the axis of moisture transport and the parade of convection to our north and west as a shortwave pivots across the central US. We remain mostly dry tomorrow, with only an isolated to scattered chance for precip north of the Ohio River through the afternoon. By Wednesday night, that southeastern ridge will begin to erode, which will allow for PoPs to begin to creep eastward through the night. While most will remain dry until Thursday, some precip chances begin to arrive in our west overnight.

LONG TERM /THURSDAY THROUGH TUESDAY/
Issued at 334 PM EDT Tue Apr 14 2026

===== Thursday through Friday =====

The southeastern ridge will break down toward the end of the week, which will open the corridor for higher precip chances in deep southwesterly flow. On Thursday, showers and storms are expected as an upper shortwave pivots across the Ohio Valley. While shower and storms are expected, there remains lower confidence on severe potential. SPC introduced a Marginal Risk, but there remains plenty of uncertainty to limit confidence. Model soundings show rather thick cloud cover and plenty of saturation in the column.
Additionally, some model guidance indicates morning shower and storm activity, which could hinder afternoon destabilization for severe potential. However, effective bulk shear near 40kts will support some organization with any redevelopment through the day, so at least some storms will remain possible.

Drier conditions are expected for most of Friday as brief upper ridging moves across the lower Ohio Valley. Temperatures are expected to reach the mid to upper 80s. By Friday night, another upper wave will move across the Plains, with a trailing cold front across the central Plains. This will result in a strengthening LLJ and moisture transport axis ahead of the front to support increasing precip chances. Not everyone will see rain Friday night, with the best chances across all of southern IN, but isolated chances along and north of the WK/BG Pkwys.

===== Weekend Outlook =====

The upper trough will likely amplify through the weekend, leading to higher confidence on a cold front to sweep through the forecast area sometime between Saturday afternoon and Sunday morning. WAA ahead of the front, combined with SW gusty gradient sfc winds, will help temps reach the 80s for most again, especially in our east where longer diurnal heating will occur as the front moves in from the west. Our highest chance for showers and storms through the day will arrive along or just ahead of the cold front. While upstream saturation and cloud cover will help limit instability parameters, strong forcing along the eastward-advancing front combined with favorable deep-layer flow will likely lead to a line of convection passing through sometime during the afternoon. The GEFS and GEPS ensembles indicate a 25-35% chance for SBCAPE values to exceed 750 J/kg Saturday afternoon. Additionally, deep layer shear parameters and steep low level lapse also add to the confidence in storm potential on Saturday. With a line of convection expected, mainly looking at a damaging wind threat on Saturday.

Behind FROPA, expect tapering precip chances and winds shifting out of the northwest. Cooler post-frontal air will also be filtering in, leading to temps to drop into the 40s by Sunday morning. Precip chances will linger into Sunday morning, but are expected to fully exit the area by the middle of the day. We should also see increasing sunshine throughout the day as the front departs to the east.

===== Early Next Week =====

The upper trough will swing through sometime Sunday night or on Monday, though we will remain in a NW upper flow for the start of next week. Sfc high pressure will build across the area, leading to another dry stretch at least for Monday and Tuesday. Temperatures will be cool during this time, with highs on Monday in the 60s and highs on Tuesday in the low 70s.

AVIATION /18Z TAFS THROUGH 00Z THURSDAY/
Issued at 118 PM EDT Tue Apr 14 2026

VFR weather is ongoing this afternoon with a mix of diurnal cu and upper level clouds. Winds are gusting up to 25kts, but these are expected to subside by this evening. Otherwise, there remains a low chance for a shower or storm to pass by SDF/LEX this afternoon, but confidence remains too low to include in TAF at this time.
Overnight, scattered upper level clouds will continue to stream across the region. A LLJ will be located to our northwest, but could support very brief and marginal LLWS. VFR continues tomorrow.

LMK WATCHES/WARNINGS/ADVISORIES
KY...None.
IN...None.