Thursday Forecast: Temperatures will start off in the lower 70s and warm to highs in the 80s. There is another chance for thunderstorms tomorrow afternoon and evening. There is a marginal risk for severe weather. Overall there is a low risk for high wind and hail. Scattered storms are possible between 1 and 10 p.m.
11:15 pm: There are no severe thunderstorms in the Miami Valley at this time. Overnight there is a chance for showers and thunderstorms. These will likely not be severe, but there is a low risk for stronger wind gusts and flooding especially in the areas that saw rain Wednesday evening.
10 pm: Flooding is happening with storm drains backed up in Trenton. Live Doppler 2 HD is estimating 3-4 inches of rain has fallen in the area. Storm spotters are reporting 3-4 feet of water in some locations. This is dangerously high water.
The Severe Thunderstorm Warning will expire on time at 10:15 p.m.
9:45 pm: Severe Thunderstorm Warning for 60 mph wind gusts in Warren and Butler County. The storm is moving into Warren County and will impact cities such as Hageman and South Lebanon. The strongest wind gusts will be south of Lebanon. The warning is in place until 10:15 p.m. The storm is moving east at 30 mph.
9:30 pm: There are no warnings at this time.
9:12 pm: Live Doppler 2 HD is indicating penny to quarter size hail south of Middletown in Butler County. The hail core looks to be just to the east of Le Sourdsville. There is no warning at this time.
9:10 pm: A 59.8 mph wind gust was recorded at the Oxford Miami Airport.
8: 54 pm: Severe Thunderstorm Warning for southern Preble County and NW Butler County. This storm is tracking East at 25 mph. 60 mph wind and quarter-sized hail will be possible.
With another round of heavy rainfall, there will be a likelihood for flooding in the area. Radar estimates 2-2.5 inches of rain have already fallen in this area.
Cities included are Oxford, West College Corner, Darrtown, College Corner, Somerville, Charlottesville, Hueston Woods State Park, Cottage Grove, Morning Sun, Mixersville, and Billingsville.
8:34 pm: Severe Thunderstorm Warning for Clinton County includes Sabina. The core of this storm is right on the border with Fayette County tracking east toward Glendon and Washington Court House. It will quickly be out of Clinton County.
The Greene County Warning expired on time. There are currently no storms in Greene County.
7:52 pm: Severe Thunderstorm Warning for Greene County includes Caesarcreek and Bowersville. 60 mph wind gust and quarter-sized hail are possible. Watch for tree damage and power outages. Flooding will also be possible.
Flooding is possible. A weatherchecker in Jamestown reported 1.1 inches of rain in 45 minutes.
7:45 pm: Severe Thunderstorm Warning expires for Butler County. There are currently no watches or warnings.
Wind gust up to 40 mph are possible around the Spring Valley area in Greene County.
7:22 pm: Severe Thunderstorm Warning for Butler County. 60 mph wind gusts and quarter-sized hail. The storm is moving SE at 25 mph.
6:25 pm: A thunderstorms developed over downtown Dayton and moved east into Greene County. This storm is not severe.
A stalled out front across the region will keep the chance for thunderstorms in area this evening.
A severe thunderstorm has been located over Noblesville, Indiana. It is moving southeast at 20 mph. There are reports of trees down due to this thunderstorm. 60 mph wind gusts and penny size hail are being reported.
Strong thunderstorms have developed between Indianapolis and Muncie, Indiana. These storms will track into the Miami Valley.
The stalled front keeps the potential for flooding as thunderstorms will stay in the vicinity of the front and track east.
6 pm: Storms are having a difficult time developing. There are some dry pockets higher up in the atmosphere.
An outflow boundary from the storm that moved through Springfield is helping boost storm development in Greene and Montgomery County.
4 pm: A thunderstorm developed near Springfield. This storm is not severe. The risk for Severe Weather is now through about 10 p.m. with a risk for thunderstorms continuing overnight and into Thursday.
The main risk is strong wind gust. A few thunderstorms may develop hail.
Flooding will be a concern as thunderstorms develop along a slow moving boundary. The storms are moving east and the nearly stationary boundary sets up a potential for training storms. This means several rounds of heavy rainfall could impact one area.
FORECAST: Temperatures are in the upper 80s. The hot and humid air will be conducive to thunderstorms this afternoon. The main ingredients for severe thunderstorms are there.
We have moisture with dew points in the upper 60s.
There is strong storm energy with convective available potential around 2000 J/kg along and south of I-70. This means thunderstorms could develop strong updrafts that help them last and possibly lead to hail development.
A cold front is moving through the Miami Valley. This will provide the additional lift necessary for stronger thunderstorms.
The wind direction will shift along the cold front. This could help create shear or a change in wind direction throughout the atmosphere. This helps thunderstorms develop.
The cold front will stall across the Miami Valley which will keep a chance for thunderstorms into Thursday. We will see lower storm energy overnight, which will lessen the severe threat after 10 p.m.