Several clusters of strong storms moved over southeast Iowa, northeast Missouri, and west central Illinois the afternoon and evening of June 1st.
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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 DVN wrote it up.
Several clusters of strong storms moved over southeast Iowa, northeast Missouri, and west central Illinois the afternoon and evening of June 1st.
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 Quad Cities, IA wrote its last area forecast discussion before the first event at Jun 1, 11:34 AM CST, 56 minutes earlier.
Area Forecast Discussion National Weather Service Quad Cities IA IL 1234 PM CDT Sat Jun 1 2019 ...18z AVIATION UPDATE... .SYNOPSIS... Issued at 303 AM CDT Sat Jun 1 2019 Low pressure was located over eastern Minnesota and Wisconsin. Winds locally were out of the southwest, maintaining the mild temps in the mid 60s to lower 70s. It was also fairly humid with dewpoints in the 60s. It has been dry so far tonight, but there is a chance for scattered showers, or an isolated storm, across the north into early this morning. && .SHORT TERM...(Today and Tonight) ISSUED AT 303 AM CDT Sat Jun 1 2019 Today Overview: There is a Slight risk for severe thunderstorms between 3 PM and 6 PM along and to the SE of a line from Galena, IL to Fairfield, IA and a Marginal risk to the NW. The HREF mean has 2000-2500 J/kg of SBCAPE and 35-40 kts of deep layer shear, which could support a few supercells if storms form. The primary threats are damaging winds, large hail, and frequent lightning. Storm coverage will probably be scattered at best with some potential for upscale growth into line segments along the extreme eastern and southeastern fringes of the CWA. For this reason, held chances for rain at 40-50% for a large portion of the outlook area. Recent runs of the HRRR, HREF, and 3 km NAM have been taking the strongest storm clusters, per updraft helicity swaths, slightly to the northeast and southwest of the CWA, largely missing the area. If these trends continue, may need to lower chances for showers and storms even more. Tonight A cool and much drier post-frontal air mass will take hold with temps bottoming out in the upper 40s NW to mid 50s SE. .LONG TERM...(Sunday through Friday) ISSUED AT 303 AM CDT Sat Jun 1 2019 Northwest flow is forecast across the region through at least midweek. Midweek weak ridging builds into the area. No significant waves are forecast until the end of next week. However with the northwest flow expect ripples through the flow to affect the area and lead to showers and thunderstorms next week. Overall the long term looks to be filled with beautiful sensible weather. Sunday, highs in the upper 60s to low 70s, with clear skies and dewpoints in the 40s to low 50s looks to be a splendid day to do something outside. Through Monday and Tuesday, temperatures begin to increase each day but remain in the 70s through these days. Tuesday the first of the weak waves is forecast to move into the area. Showers and thunderstorms become almost daily chances from this point on in the long term period. Throughout this period CAPE/shear space suggests multicell or pulse storms. Weaker deep layer shear means that overall severe threat would be tied to CAPE more than shear. The signal for severe weather through this period is weak. That said as we get closer to each day, I would think that forecast skill will improve for severe weather as mesoscale forcings will drive thunderstorm production. Overall, blended dewpoints look to remain in the 60s through the period. This means that plentiful moisture will exist for heavy rain from any storm that develops. As far as heavy rain in the sense of what we have had the last few weeks, the overall pattern does not support that. We are more likely to have more scattered heavy rain events, that may impact smaller portions of the river basins. && .AVIATION...(For the 18Z TAFS through 18Z Sunday Afternoon) ISSUED AT 1229 PM CDT Sat Jun 1 2019 Upper level wave and associated sfc frontal system passing acrs eastern IA this afternoon, with mainly VFR level clouds and veering sfc wind profiles to the west at 10-15 KTs. However, the watch will continue for isolated to scattered thunderstorm development mainly from 2-6 PM in the VCNTY of the TAF sites, with some of them possibly being strong with hail and gusty winds. A few of the latest convective allowing Hi-Res models suggest that most of the storms may fire northeast or south of most of the TAF sites this afternoon, with DBQ having the best chance of a storm in the VCNTY closer to the main sfc low. But with uncertainty on coverage and occurrence, will go with VCNTY through late afternoon or early evening at most of the TAF sites. Clearing with northwest winds tonight into Sunday morning behind a cool frontal passage. ..12.. && .HYDROLOGY... Issued at 1042 AM CDT Sat Jun 1 2019 A levee breech on the Missouri side of the Mississippi River has allowed a significant amount of water to empty from the main river channel up through Keokuk IA. That both lowered stages at Keokuk through Gregory Landing but has closed two county roads in Clark county Missouri. For the main tributary rivers in the area the La Moine and Green rivers are falling in Illinois. The Rock is nearing a crest at Joslin while continuing to slowly rise at Moline. Both Joslin and Moline are expected to crest this afternoon or tonight. In Iowa a secondary pulse of water will push the Wapsipinicon river near Dewitt slightly higher today before falling tonight. The Cedar, North Skunk and Skunk rivers continue to fall. Upstream of Coralville the Iowa river at Marengo is near crest. Downstream of Coralville the Iowa river at Oakville is near crest with other locations slowly falling. Rainfall over the next 24 hours will be scattered and should generally be 0.25 inch or less. Very localized amounts of 0.5 to 1 inch may occur in the stronger storms. The areal flooding is slowly improving. Henderson county in Illinois and Henry county in Iowa continue to report numerous road closures and the warnings will be extended into Monday. Hancock county in Illinois and Clark county in Missouri report much improved conditions and those warnings will be allowed to expire today. The levee breach on the Green river near Deer Grove continues to affect mainly Ag land in the advisory area. && .DVN WATCHES/WARNINGS/ADVISORIES... IA...NONE. IL...NONE. MO...NONE. && SYNOPSIS...Uttech SHORT TERM...Uttech LONG TERM...Gibbs AVIATION...12 HYDROLOGY...08
Hazardous Weather Outlook National Weather Service Quad Cities IA IL 350 AM CDT Sat Jun 1 2019 IAZ040>042-051>054-063>068-076>078-087>089-098-099-ILZ001-002-007- 009-015>018-024>026-034-035-MOZ009-010-020900- Buchanan-Delaware-Dubuque-Benton-Linn-Jones-Jackson-Iowa-Johnson- Cedar-Clinton-Muscatine-Scott-Keokuk-Washington-Louisa-Jefferson- Henry IA-Des Moines-Van Buren-Lee-Jo Daviess-Stephenson-Carroll- Whiteside-Rock Island-Henry IL-Bureau-Putnam-Mercer-Henderson- Warren-Hancock-McDonough-Scotland-Clark- 350 AM CDT Sat Jun 1 2019 This Hazardous Weather Outlook is for portions of north central Illinois...northwest Illinois...west central Illinois...east central Iowa...northeast Iowa...southeast Iowa and northeast Missouri. .DAY ONE...TODAY AND TONIGHT There is a slight risk for severe thunderstorms south of a Galena, Illinois to Fairfield, Iowa line between 2 PM and 6 PM. However, storm coverage is expected to be relatively low for most of the outlook area. The primary risks are damaging winds, large hail, and frequent lightning. Area rivers are experiencing flooding. Please see the latest Flood Statements and Flood Warnings for details. .DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY Thunderstorms are possible Tuesday through Friday. It is too soon to determine the potential for severe weather. .SPOTTER INFORMATION STATEMENT... Spotter activation may be needed this afternoon and evening. Uttech/Gibbs
The Quad Cities radar (KDVN), 99 km away, was scanning. The volume nearest the first event began at 18:29 UTC.
1 flash flood. Local standard time, as filed.
The temporary flood barrier system in downtown Burlington failed, flooding the Port of Burlington Welcome Center, the Memorial Auditorium, and affecting several other businesses with water from the Mississippi River which was over major flood stage.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Iowa in 2019Every state in 2019This day in weather historyWarnings in Iowa, June 2019
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: 834198.