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7-Day Forecast
Today
May 22
60°
Sat
May 23
91%
75°
60°
Sun
May 24
75%
80°
62°
Mon
May 25
31%
81°
62°
Tue
May 26
18%
82°
64°
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Today
May 22
Sat
May 23
Sun
May 24
Mon
May 25
Tue
May 26
Wear
Light layer
Rain
Bring umbrella
You're in light rain right now, and that should continue through the next couple of hours before tapering off later tonight. Tomorrow looks mostly dry, though there's a chance of a brief shower or two during the late morning to early afternoon window — don't plan outdoor activities around it, but it's nothing organized at this point.
Issued May 22, 7:05 PM
You've got rain and thunderstorms for the rest of tonight and all of Saturday, with a 100% chance of showers and storms continuing through Saturday afternoon. The heaviest rain looks to be during tonight and Saturday morning, though isolated strong storms Saturday afternoon could still produce locally heavy rainfall. Sunday keeps the wet pattern going, with another 75% chance of showers and thunderstorms before the system finally moves out.
What's driving this is a shortwave, a small-scale pocket of energy rotating through the upper atmosphere, that's pushing a surface low pressure system northeast across the region. That low is dragging a trailing trough of lower pressure behind it, which is where most of the lingering rainfall will set up. The atmosphere is already pretty moist from earlier rain, so when storms do develop, they can wring out significant rain quickly. The National Weather Service has expanded the Flood Watch into our area because of that combination: wet ground plus the potential for heavy rain with this system. The good news is that wind shear, the change in wind speed and direction with height, is on the weak side, so any thunderstorms that form should stay pretty disorganized. That limits the severe weather threat, but it doesn't stop the rain.
By Sunday, the low will be drifting slowly northeastward and weakening, though it'll still be close enough to keep showers and storms in the forecast. The pattern doesn't really clear out until we get into early next week. This is a classic spring setup: a slow-moving system tapping into plenty of moisture and squeezing it out over a couple of days.
Showers and storms continue through the night as a low tracks northeast. Rain tapers off after midnight but could linger into the early morning hours.
Tomorrow
Storms are likely again Saturday, especially in the afternoon. Locally heavy rain is possible with any stronger cells.
Rain expected — around 10 PM
Flood Watch issued May 22 at 8:58PM EDT until May 23 at 5:00AM EDT by NWS Wilmington OH
Today–Tomorrow
A Flood Watch is in effect for parts of southwest Ohio through early Saturday morning. Soils are already saturated, so any heavy downpours tonight could cause quick flooding.
Tonight through early Sat
Rain and storms stick around through Sunday. This isn't a quick-hit system, it's a multi-day soaker with locally heavy totals possible.
Sat through Sun