A funnel cloud was photographed by numerous individuals. The funnel cloud occurred in association with weak convection, which was driven mainly by afternoon heating.
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The episode as NWS PAH wrote it up.
A funnel cloud was photographed by numerous individuals. The funnel cloud occurred in association with weak convection, which was driven mainly by afternoon heating. High pressure at the surface and aloft dominated the region. Low level lapse rates were quite steep, on the order of 7 to 7.5 degrees Celsius per kilometer.
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 9, 1:48 PM CST, 2 hours 57 minutes earlier.
Area Forecast Discussion National Weather Service Paducah KY 248 PM CDT Mon Jul 9 2018 .SHORT TERM...(Tonight through Wednesday night) Issued at 247 PM CDT Mon Jul 9 2018 Main forecast impact in the short term seems to lie with the heat Tuesday, out ahead of a weak cold front that will be pushing southward through the Midwest states. Our hottest days can typically occur the day before a frontal passage, barring any extensive cloud cover and/or precip. We are not expecting much shower/thunderstorm coverage Tuesday. Mainly diurnal shower/storm activity should end up being more miss than hit in nature. Just does not seem to be much low level convergence along our portion of the weak front, and upper support looks nil. As far as temps are concerned, readings will likely creep up into the lower to mid 90s Tuesday afternoon, and the humidity will be quite uncomfortable as well. Expect afternoon heat index values up in the 100 to 105 range at most locations. Will issue a Special Weather Statement with this package since numbers are expected to be very close to advisory levels. What is left of the the surface front should cross the region Tuesday night/early Wed and wash out shortly thereafter. There still looks to be somewhat of a push of less humid air slowly into the region from north to south Wed afternoon and Wed night. However, this push will lag just enough that the southern half of the forecast area could see another nasty day heat wise, with heat indices back up over 100 degrees. .LONG TERM...(Thursday through Monday) Issued at 247 PM CDT Mon Jul 9 2018 Models show an upper level high pressure system sitting over the middle Mississippi/lower Ohio valleys Thursday into Friday. This will keep our region dry for the end of the work week. It will remain very warm during this period with highs from around 90 Thursday to the lower 90s Friday. However, easterly winds at the surface will keep dew points in check, with readings mostly in the upper 60s, producing heat indices in the middle to upper 90s. ECMWF and GFS show the upper high breaking down over the weekend and winds becoming more southerly. This will result in increasing moisture/dew points and more unstable air across our region. Small chances of mainly diurnal showers and storms will be possible Saturday and Sunday, with a little better chances by Monday out ahead of an approaching cold front. High temperatures over the weekend and into Monday will be in the lower to middle 90s. With the increasing dew points, many areas could see afternoon heat indices in the 100 to 105 range. && .AVIATION... Issued at 1222 PM CDT Mon Jul 9 2018 Low VFR cigs 3-4 kft will continue during the heat of the day, and isolated storms cannot be ruled out. Storm coverage too sparse to put directly in TAFs however. Winds to stay light and variable through Tuesday AM. && .PAH WATCHES/WARNINGS/ADVISORIES... IL...None. MO...None. IN...None. KY...None. && SHORT TERM...GM LONG TERM...RST AVIATION...GM
Hazardous Weather Outlook National Weather Service Paducah KY 303 PM CDT Mon Jul 9 2018 ILZ075>078-080>094-INZ081-082-085>088-KYZ001>022-MOZ076-086-087- 100-107>112-114-102015- 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- 303 PM CDT Mon Jul 9 2018 This Hazardous Weather Outlook is for portions of southern Illinois, southwest Indiana, western Kentucky, and southeast Missouri. .DAY ONE...Tonight Isolated thunderstorms are possible, primarily early in the evening. Lightning and locally heavy rain will be the primary hazards. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday Isolated mainly afternoon thunderstorms are forecast across the region on Tuesday, and over southern sections of southeast Missouri and western Kentucky on Wednesday. A slight chance of mainly afternoon thunderstorms returns over the weekend. Locally heavy rain, gusty winds, and lightning will be the primary hazards. Heat index values are expected to top out between 100 and 105 Tuesday afternoon. .SPOTTER INFORMATION STATEMENT... Spotter activation is not anticipated.
The Evansville,IN radar (KVWX), 21 km away, was scanning. The volume nearest the first event began at 22:43 UTC.
1 funnel cloud. Local standard time, as filed.
Numerous photos were taken of a funnel cloud over the area of U.S. Highway 41 in northern Vanderburgh County. The parent cell was a weak shower or thunderstorm.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Indiana in 2018Every state in 2018This day in weather historyWarnings in Indiana, July 2018
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: 771104.