Torrential rainfall in Southwest Illinois on July 16th resulted in water levels at Thebes briefly returning to minor flood, with limited impacts to low-lying agricultural areas.
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The episode as NWS PAH wrote it up.
Torrential rainfall in Southwest Illinois on July 16th resulted in water levels at Thebes briefly returning to minor flood, with limited impacts to low-lying agricultural areas.
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 Paducah, KY wrote its last area forecast discussion before the first event at Jul 17, 10:05 PM CST, 1 hour 55 minutes earlier. Its key messages:
Area Forecast Discussion National Weather Service Paducah KY 1105 PM CDT Wed Jul 17 2024 .KEY MESSAGES... - Isolated to scattered showers and thunderstorms will continue along and ahead of the cold front this afternoon and early this evening. - A cooler and much less humid air mass will take hold from Thursday through early next week. - A small chance of thunderstorms returns Sunday and increases through Tuesday. At this time, severe storms and widespread heavy rainfall are not anticipated. && .DISCUSSION... Issued at 322 PM CDT Wed Jul 17 2024 A broken band of showers with an occasional lightning strike has developed along the cold from near Murphysboro to near Carmi Illinois. We have gotten some funnel clouds pictures/reports from under some of them. While the images look more like a cold air funnel hanging from a cloud base, the environment (combination of surface vertical vorticity along the boundary and 0-3km CAPE over a 100 J/kg) looks reasonably ripe for land spouts. There is no rotation noted on radar with the cells. Either way, the threat to life and property is very low and a Special Weather Statement has been issued to address the possibilities. The front and any remaining thunderstorms should push south of the area by around sunset. A few showers may linger behind the front in the far southeast into the overnight hours, but it should be dry throughout the region by sunrise Thursday. Dry and cool surface high pressure will then dominate the region through the weekend and into next week. Aloft we will remain in the base of a trough aloft, but more energy will eventually drop into the central Plains and refocus the troughiness to our west over the weekend. Temperatures will be several degrees below normal Thursday and Friday and then gradually trend upward through the weekend. However, the current forecast keeps temperatures below normal through next Wednesday. The initially very dry airmass will slowly modify beginning over the weekend, as winds remain north or northeast. The NBM brings some small chance PoPs back to the region Sunday, as dewpoints climb back into the upper 60s. A weak inverted surface trough tries to develop over west Kentucky Monday, and that will help dewpoints climb near 70. The increased low-level moisture, presence of a surface boundary, and the general troughing aloft would support at least some small chance PoPs on Monday. By Tuesday the Quad State should be under southwest flow aloft and there is the possibility of a warm front lifting northeast through the region. Dewpoints will climb above 70, so Tuesday should be the best chance of convection. As a result the NBM PoPs climb into likely territory. Next Wednesday will be similar to Tuesday minus the warm front, so there should be a good chance of diurnal convection across the Quad State. Wind fields will remain weak, so organized severe storms are not expected through the first half of next week. && .AVIATION /00Z TAFS THROUGH 00Z FRIDAY/... Issued at 1044 PM CDT Wed Jul 17 2024 High pressure is pushing in from the northwest this evening with a front near the TN/KY state line. Light north winds will increase to around 10 knots Thursday. Clouds will begin to clear out overnight with mostly clear skies expected Thursday. && .PAH WATCHES/WARNINGS/ADVISORIES... IL...None. MO...None. IN...None. KY...None. && DISCUSSION...DRS AVIATION...AD
Hazardous Weather Outlook National Weather Service Paducah KY 329 PM CDT Wed Jul 17 2024 ILZ075>078-080>094-INZ081-082-085>088-KYZ001>022-MOZ076-086-087- 100-107>112-114-181000- Jefferson-Wayne IL-Edwards-Wabash-Perry IL-Franklin-Hamilton- White-Jackson-Williamson-Saline-Gallatin-Union-Johnson-Pope- Hardin-Alexander-Pulaski-Massac-Gibson-Pike-Posey-Vanderburgh- Warrick-Spencer-Fulton-Hickman-Carlisle-Ballard-McCracken-Graves- Livingston-Marshall-Calloway-Crittenden-Lyon-Trigg-Caldwell- Union KY-Webster-Hopkins-Christian-Henderson-Daviess-McLean- Muhlenberg-Todd-Perry MO-Bollinger-Cape Girardeau-Wayne MO-Carter- Ripley-Butler-Stoddard-Scott-Mississippi-New Madrid- 329 PM CDT Wed Jul 17 2024 /429 PM EDT Wed Jul 17 2024/ This Hazardous Weather Outlook is for portions of southern Illinois, southwest Indiana, western Kentucky, and southeast Missouri. .DAY ONE...This Afternoon and Tonight A few thunderstorms will be possible along and ahead of a cold front through sunset. A brief heavy downpour and lightning will be the primary concerns. .DAYS TWO THROUGH SEVEN...Thursday through Tuesday River levels are on the rise again on the Mississippi River. Please consult the river flood warnings and statements for details. A chance of mainly afternoon and evening thunderstorms returns Sunday and increases through Tuesday. Locally heavy rainfall and lightning will be the primary concerns. .SPOTTER INFORMATION STATEMENT... Spotter activation is not anticipated.
The national radar mosaic for the moment the first event began.
1 flood. Local standard time, as filed.
Torrential rainfall in portions of Southwestern Illinois resulted in a secondary surge of water levels on the Mississippi River, briefly returning gage levels at Thebes to minor flood.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Illinois in 2024Every state in 2024This day in weather historyWarnings in Illinois, July 2024
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: 1201443.