On Sunday afternoon, a cold front will make its way southward through the Ohio Valley, affecting areas like Cincinnati, Northern Kentucky, and the rest of Kentucky.

As we head into the early afternoon, we can expect some moderate instability to build up, with surface dewpoints hovering in the low to mid-60s°F and temperatures on the rise. This setup is likely to spark the development of storms along the front, particularly during the mid to late afternoon hours. As the afternoon progresses, severe thunderstorms are anticipated to form, and we’ll see an increase in storm coverage throughout the region, especially in places like Cincinnati and Northern Kentucky, as well as central and eastern Kentucky.

The ongoing surface heating will create strong low-level convergence, which should help kickstart the storms along the front. By late afternoon and into early evening, these storms will be moving southeast across Kentucky. The forecast shows some impressive MLCAPE values between 1500 and 2000 J/kg, which bodes well for severe storm activity. While surface winds will be coming from the southwest, there will also be significant speed shear in the mid-levels, ranging from 40 to 50 knots, further supporting the development of severe storms. The lapse rates are expected to fall between 7.0 and 7.5°C/km, a range that favors the formation of supercells capable of producing large hail.

The highest risk for large hail and isolated tornadoes will be at the beginning of the storm event, especially in Cincinnati, Northern Kentucky, and parts of central Kentucky, where storms are more likely to be discrete. Additionally, there is a threat of wind damage, particularly from short-line segments of storms that may form later in the afternoon and into the evening.

There's also a slight chance of isolated supercells producing tornadoes. In the lower Ohio Valley and mid-Mississippi Valley, a strong capping inversion will be present over the warm sector in the early part of the day. However, as the cold front approaches, this cap is expected to weaken, which will allow for some isolated severe storms to develop along the front. The potential for hail and strong wind gusts will remain with the more robust cells as they form and persist into the evening.
 

 

 

 

This Sunday, folks in Kentucky and Cincinnati might want to keep an eye on the weather, as a wave of unstable air is moving in from the Southwest and Central Plains. The eastern part of the Ohio Valley, particularly areas like Pennsylvania and eastern Ohio, is likely to see the most intense storm development, thanks to conditions that are perfect for supercells.

Now, while Kentucky and Cincinnati may not see quite the same level of storm activity, there’s still a chance for isolated supercells, especially in the afternoon and evening as that cold front rolls in. If these supercells do pop up, be on the lookout for large hail, possibly as big as golf balls. Plus, with some daytime heating, we could see damaging winds in certain areas. There’s also a bit of a tornado risk, but that largely depends on how much low-level moisture is available.

As night falls, we can expect storm coverage to increase; however, much of this activity will likely be at a higher altitude, which means it might not be as severe, although strong winds could still be an issue. In short, Kentucky and Cincinnati should brace for a busy Sunday, with the most significant risk for severe weather peaking in the afternoon and evening. As the front shifts southeast, the storm threat will gradually lessen into the night, but don't be surprised if some elevated storms and gusty winds stick around.
 

BGP Severe Weather Alert Day is in effect.

Today, Sunday, March 22, 2026, residents of the Cincinnati area and much of Kentucky face the possibility of severe weather as a cold front moves south-southeast through the Ohio Valley. Although the most intense storm activity is likely to occur just northeast in Ohio and Pennsylvania, Cincinnati and northern Kentucky are classified within a slight risk (Level 2 of 5) for this afternoon and evening.

In the Cincinnati metropolitan area, the initial storms may take the form of discrete or semi-discrete supercells. As the evening unfolds and the cold front advances further into Kentucky, these storms are expected to develop into a more organized line. By late evening and into the overnight hours, additional storm activity is anticipated across central and southern Kentucky. However, these later storms might be elevated or post-frontal, meaning they will occur behind the surface cold front.

The primary hazards for the Cincinnati area and northern Kentucky today include the risk of large to very large hail. Given the steep mid-level lapse rates and favorable deep-layer shear of 40-50+ knots, any sustained supercell could produce hailstones measuring between 1.5 and 2.5 inches in diameter, comparable to ping-pong to tennis ball size. Additionally, damaging wind gusts pose a significant danger, particularly as storms merge into a line later in the evening.

There is also some potential for a tornado or two along the front, although this risk is somewhat mitigated by a well-mixed boundary layer that keeps cloud bases relatively high.

 

 

 

Update:

In the Kentucky and Cincinnati areas, today's weather is characterized by two distinct phases: an unusually warm afternoon followed by a late evening that may bring severe storms. High temperatures in the Cincinnati metropolitan area and much of Northern and Central Kentucky are expected to reach the upper 70s to low 80s, accompanied by partly cloudy skies. This warmth, along with rising dewpoints in the upper 50s, will contribute to an increasingly unstable atmosphere. Although the early afternoon should remain dry thanks to a layer of warmer air aloft, this stability is likely to diminish as a cold front approaches from the northwest. 

Thunderstorms in the Cincinnati region and along the Interstate 75 corridor in Kentucky are anticipated to develop later than those in areas to the east, with the most probable timeframe for storm activity falling between 7:00 PM and midnight (23Z-04Z). The passage of a shortwave trough will provide the necessary uplift to break the cap and stimulate convective activity along the advancing front. Since this storm initiation will occur later in the day, there is a chance that storms may become elevated, forming just above a cooler surface layer. However, the strong mid-level lapse rates ensure that any storms that do form will have ample energy available. 

The main severe weather threat for Cincinnati and Northern Kentucky will be large hail, as the combination of steep lapse rates and robust deep-layer shear is favorable for the development of organized storm structures, including supercells. Residents should be prepared for the possibility of hail measuring 1 to 2 inches in diameter. While the risk of tornadoes is considered low due to relatively high cloud bases and insufficient low-level moisture, it is not entirely absent, especially if any storms manage to stay surface-based before the front fully advances.

As the evening transitions into the night, the storms are expected to evolve into a more linear or squally formation as the cold front moves south and east across Kentucky. This change will shift the primary threat from large hail to damaging wind gusts.

Following the passage of the front, a significant change in air mass will take place, with temperatures expected to drop nearly 40 degrees by Monday morning. Residents are advised to secure outdoor objects before sunset and to have a means of receiving weather alerts late tonight as the front approaches.