
Severe Weather Takes Aim At High Plains to Ohio Valley
The ongoing outbreak of severe storms continues today, shifting southward into the central Plains and Lower Ohio Valley.
# SUMMARY -------------------- THE NATIONAL WEATHER SERVICE HAS ISSUED SEVERE THUNDERSTORM WATCH 577 IN EFFECT UNTIL 9 PM EDT /8 PM CDT/ THIS EVENING FOR THE FOLLOWING AREAS IN INDIANA THIS WATCH INCLUDES 10 COUNTIES IN SOUTH CENTRAL INDIANA CLARK CRAWFORD DUBOIS FLOYD HARRISON JEFFERSON ORANGE PERRY SCOTT WASHINGTON IN KENTUCKY THIS WATCH INCLUDES 31 COUNTIES IN CENTRAL KENTUCKY ANDERSON BOYLE BRECKINRIDGE BULLITT CASEY FAYETTE FRANKLIN GARRARD GRAYSON GREEN HANCOCK HARDIN HART HENRY JEFFERSON JESSAMINE LARUE LINCOLN MADISON MARION MEADE MERCER NELSON OHIO OLDHAM SHELBY SPENCER TAYLOR TRIMBLE WASHINGTON WOODFORD THIS INCLUDES THE CITIES OF ADYEVILLE, ADYEVILLE, ALLENDALE, ALTON, ARGYLE, ATHERTONVILLE, BAIZETOWN, BARDSTOWN, BARDSTOWN JUNCTION, BEAVER DAM, BECKS MILL, BECKS MILL, BEDA, BEDFORD, BELLEVIEW, BELLEVIEW, BEREA, BLACK GNAT, BOHON, BRANDENBURG, BROWNSBORO, BROWNSTOWN, BROWNSTOWN, BRYANTSBURG, BRYANTSBURG, BRYANTSVILLE, BUCKEYE, BUCKNER, BUFFALO, CAMPBELLSVILLE, CANMER, CANTON, CANTON, CECILIA, CEMENTVILLE, CEMENTVILLE, CHAMBERSBURG, CHAMBERSBURG, CHINA, CHINA, CLARK REGIONAL AIRPORT, CLEMENTSVILLE, CLERMONT, CORYDON, CORYDON, COXS CREEK, CROMWELL, DANVILLE, DEATSVILLE, DUBOIS, DUBOIS, DUCKERS, DUKES, DUNNVILLE, EDWARDSVILLE, EDWARDSVILLE, ELIZABETHTOWN, ELK CREEK, ELK HORN, EMINENCE, ENGLISH, EVANS LANDING, EVANS LANDING, EXIE, FLAHERTY, FLOYDS KNOBS, FLOYDS KNOBS, FORT KNOX, FRANKFORT, FRENCH LICK MUNICIPAL AIRPORT, GARFIELD, GATCHEL, GATCHEL, GLEN DEAN, GLENSBORO, GOSHEN, GOSHEN, GRAEFENBURG, GREENSBURG, HARDINSBURG, HARDYVILLE, HARNED, HARRISONVILLE, HARRODSBURG, HARTFORD, HAWESVILLE, HIGH BRIDGE, HIGHGROVE, HITCHCOCK, HOBSON, HODGENVILLE, HORSE CAVE, HUNTINGBURG AIRPORT, IRELAND, IRELAND, JASPER, JASPER, JEFFERSONVILLE, JEFFERSONVILLE, KEENE, KESSINGER, KINGSTON, KIRKSVILLE, KOSSUTH, KOSSUTH, LA GRANGE, LANCASTER, LAWRENCEBURG, LEBANON, LEITCHFIELD, LEWISPORT, LEXINGTON, LIBERTY, LITTLE MOUNT, LOUISVILLE, LOWELL, LYONS, MADISON MUNICIPAL AIRPORT, MADRID, MAGNOLIA, MARENGO, MARENGO, MAUD, MCCREARY, MCDANIELS, MCQUADY, MIDDLEBURG, MILLTOWN, MILLTOWN, MILLVILLE, MILTON, MINTONVILLE, MOUNT WASHINGTON, MULDRAUGH, MUNFORDVILLE, NEW ALBANY, NEW ALBANY, NEW BOSTON, NEW MARKET, NICHOLASVILLE, PAINT LICK, PAOLI, PATESVILLE, PAYNEVILLE, PELLVILLE, PEWEE VALLEY, PEYTONA, PIERCE, PRENTISS, RADCLIFF, REDHOUSE, REX, RICHMOND, ROSINE, ROWLAND, SALOMA, SAMUELS, SHAKERTOWN, SHELBYVILLE, SHEPHERDSVILLE, SLIGO, SOUTHVILLE, SPRINGFIELD, STANFORD, STEPHENSBURG, SUMMERSVILLE, SYRIA, TAYLORSVILLE, TELL CITY, TERRY, TYRONE, UNO, VALLEY VIEW, VERSAILLES, WADDY, WAKEFIELD, WATERFORD, WESTPORT, WHITE CLOUD, WHITE CLOUD, WILMORE, WINDSOR, YOUNGS CREEK, AND YUMA. # DETAILS -------------------- ISSUED AT Wednesday, August 12, 2026 at 3:24 PM EDT ISSUED BY NATIONAL WEATHER SERVICE LOUISVILLE KY HEADER WATCH COUNTY NOTIFICATION FOR WATCH 577
# HEADLINE -------------------- FLOOD WATCH IN EFFECT THROUGH THURSDAY MORNING # DETAILS -------------------- WHAT Flooding caused by excessive rainfall continues to be possible. WHERE Portions of Indiana, including the following areas, Clark IN, Crawford, Dubois, Floyd, Harrison IN, Orange, Perry, Scott IN and Washington IN and north central Kentucky, including the following areas, Bullitt, Jefferson, Meade, Oldham and Spencer. WHEN Through Thursday morning. IMPACTS Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. Flooding may occur in poor drainage and urban areas. ADDITIONAL DETAILS - Repeated rounds of heavy rainfall could lead to Flash Flooding. Localized amounts over 3 inches of rain will cause flash flooding of small creeks and streams, especially low water crossings. - http://www.weather.gov/safety/flood ISSUED AT Wednesday, August 12, 2026 at 8:44 AM EDT ISSUED BY National Weather Service Louisville KY HEADER URGENT - IMMEDIATE BROADCAST REQUESTED | Flood Watch # PRECAUTIONARY/PREPAREDNESS ACTIONS -------------------- You should monitor later forecasts and be alert for possible Flood Warnings. Those living in areas prone to flooding should be prepared to take action should flooding develop. # AREAS AFFECTED -------------------- Floyd, Bullitt, Clark IN, Crawford, Dubois, Harrison IN, Jefferson, Meade, Oldham, Orange, Perry, Scott IN, Spencer, Washington IN Including the cities of La Grange, Shepherdsville, English, Tell City, Corydon, Jasper, Jeffersonville, Brandenburg, Louisville, Scottsburg, Taylorsville, Paoli, Salem, and New Albany
Closest strike: 9.49 miles Stay Alert! Remain in a safe area until there has been no lightning within 10 miles of this location for 30 minutes. Please be aware that lightning activity can remain high even when a storm is moving away from your location. Even if rain has stopped, do not leave your safe area until WeatherBug indicates that lightning is more than 10 miles away from this selected location. IF OUTDOORS Avoid water, high ground, and open spaces. Avoid all metal objects including electric wires, fences, and machinery. Find a safe area in a building or in a fully enclosed vehicle with the windows completely shut. Unsafe places include underneath canopies, small picnic or rain shelters, convertibles, or near trees. IF INDOORS Avoid water and stay away from doors and windows. Avoid using a hard line telephone. Take off headphones. Turn off, unplug, and stay away from appliances, computers, power tools, and TV sets. Lightning may strike exterior electric and phone lines, inducing shocks to inside equipment.
There is a Slight Severe Storm Risk for your location. Continue reading for today's outlook from the National Weather Service's Storm Prediction Center. -------------------- National Severe Storm Outlook THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS ACROSS PORTIONS OF THE NORTHERN AND CENTRAL PLAINS AND LOWER OHIO VALLEY SUMMARY Scattered severe thunderstorms with occasional wind damage remain likely this afternoon/evening from Illinois/Indiana into Kentucky. Initial supercells with very large hail across the central/northern High Plains are expected to evolve into a cluster or two overnight while spreading eastward across Nebraska/South Dakota with the potential for severe gusts. 20z Update OH Valley Several clusters of strong to severe storms remain ongoing in proximity to the outflow from the prior complex this morning. Expectations are for additional storm development to occur along the southern portions of the outflow across southern IN/IL and western/northern KY where the air mass remains quite warm and unstable (MLCAPE 300-4000 J/kg). Deep-layer shear of 25-35 kt would support a mixed mode of clusters and short line segments, with severe gusts (some 70-75 mph), isolated hail and a tornado or two possible into this evening. Have trimmed probabilities behind the current storms/outflow and adjusted CIG1 wind probabilities farther southwest. WY/SD/NE Initial supercells have developed and are maturing within a broad post-frontal upslope flow regime across eastern WY/MT, western SD and northwest NE. These storms are expected to remain mostly supercellular and should continue to pose a threat for large to very large hail (2-3 inch), severe wind gusts and potentially a tornado or two into this evening as they track eastward along a diffuse frontal boundary. Additional, likely higher-based storms should develop across northeast CO and western NE before spreading northeastward with a risk for severe gusts and some hail. Eventually, upscale growth into one or more clusters/bowing segments appears likely as a 40-50 kt low-level jet and strong low-level warm advection is forecast to develop across the central/northern Plains. This would support a risk for severe gusts of 65-80 mph across parts of central and eastern NE/SD, likely reaching western IA by early Thursday morning. 2% tornado probabilities have been added to western SD and eastern WY where the supercellular mode could support some tornado risk.












