During the late afternoon hours on July 24th, strong to severe thunderstorms developed across southeastern Illinois and southwestern Indiana ahead of a surface cold front located immediately to the northwest. Ahead of the cold front, temperatures across southwestern Indiana surged into the low-to-mid 90s during the afternoon on the 24th, with dewpoints residing in the mid-70s.
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Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.
The episode as NWS LMK wrote it up.
During the late afternoon hours on July 24th, strong to severe thunderstorms developed across southeastern Illinois and southwestern Indiana ahead of a surface cold front located immediately to the northwest. Ahead of the cold front, temperatures across southwestern Indiana surged into the low-to-mid 90s during the afternoon on the 24th, with dewpoints residing in the mid-70s. This allowed for 3000-4000 J/kg of mixed-layer CAPE, leading to explosive convective development during the mid-to-late afternoon hours. By the time storms entered south central Indiana, decreased insolation reduced instability somewhat; however, storms were still strong enough to produce isolated wind damage across Dubois and Crawford County. As the cold front's forward progress had nearly stalled, the moist unstable air mass persisted over southern Indiana into the early overnight hours, leading to continued elevated convection which contributed to isolated flash flooding issues.
The local office's own words before the first event, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Louisville, KY wrote its last area forecast discussion before the first event at Jul 24, 6:08 PM EST, 1 hour 36 minutes earlier.
Area Forecast Discussion National Weather Service Louisville KY 708 PM EDT Sun Jul 24 2022 ...Updated Mesoscale and Aviation Discussions... .Mesoscale Update... Issued at 700 PM EDT Sun Jul 24 2022 Thunderstorm coverage over the last couple of hours has substantially increased ahead of a cold front currently located across northern Indiana and central Illinois. According to the SPC mesoanalysis, the convective uptick can be traced to a mid-level PVA anomaly and large values of conditional instability. The combination of high temperatures and dewpoints downstream have warranted the issuance of Severe Thunderstorm Watch #499 that covers portions of southern Indiana. The current thinking is that the environment will be supportive for locally straight-line wind damage and small hail with the strongest storm cores. Also, marginal effective wind shear values and outflow interaction should motivate multicell clusters and/or a disorganized line of convection as the main convective mode. The severe threat should diminish as storms push toward northern Kentucky as the boundary layer stabilizes and the low-level lapse rates decrease. && .Short Term...(This evening through Monday) Issued at 301 PM EDT Sun Jul 24 2022 This afternoon a cold front is stretched from Michigan to Kansas. Rain has been ongoing ahead of this front today across central and northern sections of Illinois and Indiana. New convective cells are expected to develop from southern Illinois to central Indiana this evening and drop into southern Indiana and central Kentucky tonight ahead of the advancing surface boundary. Some strong storms with locally gusty winds can't be ruled out along and north of I-64 tonight, but the better chances for severe weather will be to our north and west with greater instability, deeper moisture, and slightly stronger shear. It will be another warm, muggy night with lows in the 70s. On Monday the front will drop into Kentucky but will be rather broad and diffuse, with moisture lingering back to the Ohio River. Showers and embedded thunderstorms will likely be found in the region for much of the day as the forward speed of the boundary decreases. The best chance for any severe weather will be in southern Kentucky and the Lake Cumberland region during a brief window in the afternoon. Shear and mid-level lapse rates will be weak, with very high freezing levels, but expected DCAPE values suggest a possibility of locally gusty winds with any stronger storms...especially in any heavier downpours in an area of moisture pooling ahead of the front. With widespread clouds and showers, no heat headlines will be needed for Monday. Highs will be in the 80s. .Long Term...(Monday night through Sunday) Issued at 305 PM EDT Sun Jul 24 2022 The overall weather pattern through the extended remains active with shower and thunderstorm chances nearly every day. An elongated upper- level ridge will stretch from the southeastern US, along the Gulf Coast, through the Four Corners and up into the Pacific Northwest through the period. This will place the Ohio Valley under a general west to west-northwesterly upper level flow. At the surface, a weak surface boundary will meander over the Ohio Valley for the start of the period (Tuesday and Wednesday) before a stronger cold front approaches from northwest on Thursday and through the area Friday into the weekend. Monday night into Tuesday the surface boundary will be draped nearly along the Ohio River somewhere over southern IN/north central KY. Strong 850-500mb winds will help to enhance showers and thunderstorms along the boundary Tuesday morning into Tuesday afternoon. Moisture pooling along the boundary will provide PWAT values in excess of 2.00" over the area so heavy rain with any showers or storms is likely. With models showing 30-40kts of shear from the strong 850-500mb wind and ample instability, potentially strong to severe storms aren't out of the question with strong damaging winds being the main threat. Temperatures will be a challenge Tuesday depending on the location of the surface boundary as well as where we see the most rain and clouds. Looks like we will see a SW to NE temperature gradient across our CWA with highs near 80 across the Bluegrass and southern IN to the upper 80s across the TN/KY border and around Bowling Green. The stalled surface boundary is expected to lift northward as a warm front Wednesday as a cold front drops southeastward out of the Upper Midwest. PWAT values will remain at or above 2.00" with more scattered showers and thunderstorms expected Wednesday and Thursday. It is important to note that while we have continued chances of showers and storms each day that could produce heavy rain, and amounts between a half to over an inch of precipitation is possible in some instances, not everyone will see that much rain. Temperatures warm up behind the warm front on Wednesday with highs ranging from the mid to upper 80s and even a few 90s. More cloud cover on Thursday as the approaching cold front stalls to our north will keep temperatures a bit cooler in the mid/low 80s. Cold front will finally work through the area Thursday night and during the Friday. Highest PoPs for now look to be Thursday night into Friday morning and diminishing from the north to the south during the day. Dew points will also start to fall from the low/mid 70s on Wednesday/Thursday to the mid/upper 60s for Friday. The weekend forecast will really come down to how far south the cold front reaches as it moves south on Friday. As of now, going to keep precipitation chances in the forecast with the highest chance (30- 40%) along and south of the Western KY/Bluegrass Pkwys and 20-30% to the north. This would also impact high temperatures but for now going with highs Saturday and Sunday in the low 80s. && .Aviation...(00Z TAF Issuance) Issued at 700 PM EDT Sun Jul 24 2022 Main challenge is the impact of thunderstorms on the terminals later this evening. Hi-res models suggest that the line of storms in southern Illinois and central Indiana will make enough southward progress to get into HNB later this evening. Included a TEMPO group to cover brief IFR visibility, but expect ceilings to remain VFR. Convection will be a non-player in HNB after midnight, and we don't expect storms to survive into Kentucky, though it could be a close call for SDF. Cold front settles into central Kentucky Monday morning, keeping plenty of cloud cover but VFR ceilings. We could see that front light up in the afternoon, so will include a PROB30 for thunderstorms at BWG after 20Z, but VCSH should cover the other terminals. && .LMK WATCHES/WARNINGS/ADVISORIES... IN...None. KY...None. && Mesoscale...ALL Short Term...13 Long Term...BTN Aviation...RAS
Hazardous Weather Outlook National Weather Service Louisville KY 329 PM EDT Sun Jul 24 2022 KYZ034>043-045>049-053>057-063>067-073>078-081-082-251930- Shelby-Franklin-Scott-Harrison-Spencer-Anderson-Woodford-Fayette- Bourbon-Nicholas-Nelson-Washington-Mercer-Jessamine-Clark-Larue- Marion-Boyle-Garrard-Madison-Hart-Green-Taylor-Casey-Lincoln-Allen- Barren-Monroe-Metcalfe-Adair-Russell-Cumberland-Clinton- Including the cities of Shelbyville, Frankfort, Georgetown, Cynthiana, Taylorsville, Lawrenceburg, Versailles, Lexington, Paris, Carlisle, Bardstown, Springfield, Harrodsburg, Nicholasville, Winchester, Hodgenville, Lebanon, Danville, Lancaster, Richmond, Horse Cave, Greensburg, Campbellsville, Liberty, Stanford, Scottsville, Glasgow, Tompkinsville, Edmonton, Columbia, Jamestown, Burkesville, and Albany 329 PM EDT Sun Jul 24 2022 /229 PM CDT Sun Jul 24 2022/ This hazardous weather outlook is for portions of south central Indiana and Central Kentucky. .DAY ONE...Tonight. The combination of heat and humidity will result in heat indices around 100 degrees early this evening. Take precautions if you must be outside for extended periods of time. Thunderstorms will approach from the northwest this evening into tonight ahead of a frontal boundary. Storms are expected to gradually weaken in our region, but a few could pose a gusty wind threat, mainly during the evening hours. .DAYS TWO THROUGH SEVEN...Monday through Saturday. Multiple rounds of thunderstorms are expected throughout the upcoming week. Thunderstorms will contain dangerous lightning and torrential rainfall, with a few stronger storms potentially containing gusty winds. Localized flash flooding may occur in areas where heavy rainfall from showers and storms persists for an extended period of time. .SPOTTER INFORMATION STATEMENT... Spotters may be needed to report flash flooding or damage from gusty winds this week. GENERAL STORM MOTION OF THE DAY: Storms will move to the southeast around 15 mph. Any users of this storm motion must be aware that thunderstorm activity can be erratic and constantly evolving. Please use this with caution and be prepared for changing conditions. && More information, along with other weather, hydrological and climate information can be found, at weather.gov/louisville. INZ076>079-083-084-089>092-KYZ023>033-061-062-070>072-251930- Orange-Washington-Scott-Jefferson-Dubois-Crawford-Perry-Harrison- Floyd-Clark-Hancock-Breckinridge-Meade-Ohio-Grayson-Hardin-Bullitt- Oldham-Trimble-Henry-Butler-Edmonson-Logan-Warren-Simpson- Including the cities of Paoli, Salem, Scottsburg, Madison, Jasper, English, Tell City, Corydon, New Albany, Jeffersonville, Lewisport, Hawesville, Hardinsburg, Brandenburg, Hartford, Leitchfield, Elizabethtown, Shepherdsville, Louisville, La Grange, Bedford, Milton, New Castle, Morgantown, Brownsville, Russellville, Bowling Green, Franklin, and Providence 329 PM EDT Sun Jul 24 2022 /229 PM CDT Sun Jul 24 2022/ ...HEAT ADVISORY IN EFFECT UNTIL 7 PM EDT /6 PM CDT/ THIS EVENING... This hazardous weather outlook is for portions of south central Indiana and Central Kentucky. .DAY ONE...Tonight. The combination of heat and humidity will result in heat indices around 105 degrees early this evening, and a heat advisory is in effect. Please refer to that product for more details. Thunderstorms will approach from the northwest this evening into tonight ahead of a frontal boundary. Storms are expected to gradually weaken in our region, but a few could pose a gusty wind threat, mainly during the evening hours. .DAYS TWO THROUGH SEVEN...Monday through Saturday. Multiple rounds of thunderstorms are expected throughout the upcoming week. Thunderstorms will contain dangerous lightning and torrential rainfall, with a few stronger storms potentially containing gusty winds. Localized flash flooding may occur in areas where heavy rainfall from showers and storms persists for an extended period of time. .SPOTTER INFORMATION STATEMENT... Spotters may be needed to report flash flooding or damage from gusty winds this week. GENERAL STORM MOTION OF THE DAY: Storms will move to the southeast around 15 mph. Any users of this storm motion must be aware that thunderstorm activity can be erratic and constantly evolving. Please use this with caution and be prepared for changing conditions. && More information, along with other weather, hydrological and climate information can be found, at weather.gov/louisville. 13
Special Weather Statement
National Weather Service Louisville KY
833 PM EDT Sun Jul 24 2022
INZ076-083-250100-
Orange IN-Dubois IN-
833 PM EDT Sun Jul 24 2022
...Strong thunderstorms will impact portions of Dubois and western
Orange Counties through 900 PM EDT...
At 832 PM EDT, Doppler radar was tracking strong thunderstorms along
a line extending from 6 miles west of Shoals to 9 miles northwest of
Jasper to near Winslow. Movement was east at 35 mph.
HAZARD...Winds in excess of 30 mph and pea size hail.
SOURCE...Radar indicated.
IMPACT...Gusty winds could knock down tree limbs and blow around
unsecured objects. Minor damage to outdoor objects is
possible.
Strong thunderstorms will be near...
Jasper around 845 PM EDT.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If outdoors, consider seeking shelter inside a building.
Frequent cloud to ground lightning is occurring with these storms.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.
These storms may intensify, so be certain to monitor local radio
stations and available television stations for additional information
and possible warnings from the National Weather Service.
A Severe Thunderstorm Watch remains in effect until midnight EDT for
south central Indiana.
&&
LAT...LON 3851 8707 3850 8706 3851 8705 3851 8700
3849 8695 3851 8693 3850 8688 3853 8683
3853 8668 3868 8668 3865 8653 3828 8674
3825 8677 3825 8679 3821 8680 3820 8707
TIME...MOT...LOC 0032Z 289DEG 33KT 3865 8692 3847 8707 3835 8726
MAX HAIL SIZE...0.25 IN
MAX WIND GUST...30 MPH
ALLThe Evansville,IN radar (KVWX), 70 km away, was scanning. The volume nearest the first event began at 00:46 UTC.
3 thunderstorm wind, 1 flash flood. Local standard time, as filed.
A tree was blocking the road near 5220 Portersville Road.
A traffic light was knocked down along 30th Street and Newton Street.
A tree was down near the intersection of West Fork Road and Mifflin West Fork Road.
Dispatch reported flooding along US 231 at the intersection with railroad tracks in Huntingburg.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Indiana in 2022Every state in 2022This day in weather historyWarnings in Indiana, July 2022
NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-09-24. Each event’s entry at NCEI: 1043772, 1043773, 1043774, 1043771.