Storm Summary Number 2 for Ohio Valley Heavy Rain and Flooding
NWS Weather Prediction Center College Park MD
1100 AM EDT Wed Aug 12 2026

...Heavy rainfall and dangerous flash flooding continue across the
Ohio Valley and Central Appalachians as repeated rounds of
thunderstorms track across the area... 

Flash Flood Warnings are in effect for eastern Indiana, western
Ohio, and northern Kentucky.

Flood Watches are in effect for most of the Ohio Valley.

Flood Advisories are in effect for parts of Ohio and southern
Kentucky.

For a detailed graphical depiction of the latest watches, warnings
and advisories, please see www.weather.gov

At 1000 AM EDT...Latest surface analysis indicates a stationary
front located through northern Illinois, central Kentucky, and
eastern Tennessee, with a surface low located over northwest
Illinois. National Weather Service Doppler radar shows a large
cluster of thunderstorms bringing heavy rainfall over Indiana,
Kentucky, and Ohio, along with a QLCS/Squall line behind, located
in northern Illinois. Over the past 6 hours, over 4" of rain have
fallen along eastern Indiana per current MRMS 6hr QPE. Over 2"
have also fallen in northern Kentucky. Radar indicates a tertiary
line located behind the aforementioned QLCS, over west-to-central
Iowa. 

...Selected preliminary Storm Total Rainfall in inches from 800 AM
EDT Mon Aug 10 through 1000 AM EDT Wed Aug 12...

...ILLINOIS...
NAPERVILLE 2.4 SE                    4.31                    
GRAND RIDGE 0.2 SSW                  4.20                    
DWIGHT 2.3 SSE                       3.87                    
LAKE FOREST 2.0 WSW                  3.30                    
PARK FOREST 0.8 NNE                  3.13                    
ASHTON 0.4 SSW                       2.99                    

...INDIANA...
MODOC 0.1 W                          8.26                    
NEW CASTLE 2.4 SW                    7.74                    
KEWANNA 4.9 S                        6.83                    
MUNCIE 4.0 E                         6.00                    
MONTEREY 2.2 WNW                     5.88                    
ORA                                  5.84                    
WINAMAC 9.9 NW                       5.54                    
SAN PIERRE 4.1 NNE                   5.50                    
NORTH JUDSON 2.5 N                   5.33                    

...KENTUCKY...
FRANKFORT 5.0 SW                     4.18                    
NICHOLASVILLE 6.1 NE                 3.46                    
BAGDAD 5.5 ENE                       3.35                    
LEXINGTON 6.6 S                      3.23                    
LAWRENCEBURG 5.2 S                   2.86                    
WADDY 3.3 WSW                        2.82                    
WILMORE 0.6 NNE                      2.72                    

...OHIO...
CROOKSVILLE                          7.28                    
GLOUSTER 5.7 NE                      6.67                    
ROSEVILLE                            6.54                    
NEW LEXINGTON                        6.36                    
MILTON                               6.00                    
LAYMAN                               5.96                    
BREMEN 1.9 N                         5.90                    
CHESTERHILL                          5.64                    
BURR OAK 1 SE                        5.48                    
NEW ROME 2.2 NW                      5.03                    
LOGAN 0.2 NNE                        4.57                    
CORNING                              4.51                    
AMESVILLE                            4.04                    
HANOVERTON                           3.91                    

...WEST VIRGINIA...
ALUM CREEK 3.0 E                     4.51                    
CHARLESTON 5.9 SE                    4.09                    
SOUTH CHARLESTON                     3.93                    
SOUTH CHARLESTON 1.6 ENE             3.87                    
GRANTSVILLE 2 ESE                    3.86                    
PARKERSBURG                          3.44                    
RIPLEY 5.8 S                         3.36                    


The stationary front with remain in the general vicinity over the
next several hours. Latest Convective Allowing Model (CAM)
guidance suggest a dissipation of the first convective system in
OH/IN/WV, before the arrival of the QLCS current located in
northern IL. This second line of storms will bring the potential
for 1-2"/hr rain rates along Indiana, Illinois, and Kentucky,
which given the heavy rainfall over previous days will exacerbate
flooding concerns. Current CAMs guidance suggest that heavy rain
will continue into the evening and overnight tonight, before
dissipating early Thursday morning. 

The next Storm Summary will be issued by the Weather Prediction
Center at 1100 PM EDT. Please refer to your local National Weather
Service office for additional information on this event.

Blanco-Alcala