An upper level disturbance initiated scattered thunderstorms along a cold front in a near tropical atmosphere. Due to the fairly slow movement and training of some storms, heavy rainfall occurred in localized areas.
Every event with a place to put it; 3 filed by county or forecast zone are drawn at its center, in a lighter ring. Tap one for its entry below.
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.
An upper level disturbance initiated scattered thunderstorms along a cold front in a near tropical atmosphere. Due to the fairly slow movement and training of some storms, heavy rainfall occurred in localized 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 Quad Cities, IA wrote its last area forecast discussion before the first event at May 30, 2:14 AM CST, 11 hours 16 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE QUAD CITIES IA IL 314 AM CDT TUE MAY 30 2006 .SYNOPSIS... A COLD FRONT WILL SLOWLY MOVE THROUGH THE REGION TODAY THROUGH THURSDAY. THIS FRONT WILL PROVIDE THE FOCUS TO AN EXTENDED PERIOD OF RAIN...SOME POTENTIALLY HEAVY. && .DISCUSSION... 03Z AND 06Z RUC HAVE THE BEST IDEA REGARDING THE COLD FRONT SO FAR...THAT IS KEEPING IT OUTSIDE OF THE CWFA THROUGH 18Z. NEWLY ARRIVING 06Z ETA IS NOW REFLECTING THIS AS WELL. VORT MAX TO SLOWLY MOVE THROUGH THE AREA THIS MORNING SHOULD PROVIDE THE FOCUS FOR ISOLATED TSRA DEVELOPMENT. DAYTIME HEATING TO ALLOW GREATER COVERAGE IN PRECIP THIS AFTERNOON WITH THE BEST CHANCES IN THE NW CLOSER TO THE FRONT. PRECIP CHANCES INCREASE AGAIN TONIGHT/WEDNESDAY. PRECIPITABLE WATER TO INCREASE THROUGH WEDNESDAY. THIS COMBINED WITH SLOW MOVING FRONT TO BRING THE THREAT OF LOCALLY HEAVY RAINFALL. CONSIDERED GOING WITH A FLOOD WATCH BUT WE SHOULD BE ABLE TO TAKE THE INITIAL ROUND OF PRECIP WITH ONLY LOCALIZED PROBLEMS. NONLINEAR MESOSCALE PROCESSES WILL HOLD THE KEY ON LOCATION AND EXTENT OF HEAVY RAINFALL TONIGHT/WEDNESDAY. WILL PASS ON CONCERN OF HYDRO HEADLINES TO NEXT COUPLE OF SHIFTS. SLOW MOVEMENT OF FRONT SUGGESTS POTENTIAL FOR LINGERING PRECIP THURSDAY MORNING AND HAVE ADDED THIS TO THE FCST PACKAGE. MADE NO CHANGES TO THE EXTENDED. && .DVN WATCHES/WARNINGS/ADVISORIES... IA...NONE. IL...NONE. MO...NONE. 08
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE QUAD CITIES IA IL 500 AM CDT TUE MAY 30 2006 IAZ040>042-051>054-063>068-076>078-087>089-098-099-ILZ001-002-007- 009-015>018-024>026-034-035-MOZ009-010-311000- BENTON IA-BUCHANAN IA-BUREAU IL-CARROLL IL-CEDAR IA-CLARK MO- CLINTON IA-DELAWARE IA-DES MOINES IA-DUBUQUE IA-HANCOCK IL- HENDERSON IL-HENRY IA-HENRY IL-IOWA IA-JACKSON IA-JEFFERSON IA- JO DAVIESS IL-JOHNSON IA-JONES IA-KEOKUK IA-LEE IA-LINN IA-LOUISA IA- MCDONOUGH IL-MERCER IL-MUSCATINE IA-PUTNAM IL-ROCK ISLAND IL- SCOTLAND MO-SCOTT IA-STEPHENSON IL-VAN BUREN IA-WARREN IL- WASHINGTON IA-WHITESIDE IL- 500 AM CDT TUE MAY 30 2006 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. ...THERE IS A POTENTIAL FOR SIGNIFICANT RAINFALL OVER THE NEXT TWO DAYS... .DAY ONE...TODAY AND TONIGHT ISOLATED THUNDERSTORMS ARE FORECAST TO BECOME MORE NUMEROUS THIS AFTERNOON AND TONIGHT AS A SLOW MOVING COLD FRONT APPROACHES THE AREA. PULSE TYPE SEVERE STORMS ARE POSSIBLE THIS AFTERNOON AND EVENING ALONG AND AHEAD OF THE COLD FRONT...WITH THE MAIN THREAT BEING LOCALIZED HIGH WINDS AND HAIL. THE EXPECTED SLOW MOVEMENT OF THE STORMS COMBINED WITH HIGH MOISTURE LEVELS WILL BRING A THREAT OF LOCALLY HEAVY RAINFALL. LATER TONIGHT...SHOWERS AND THUNDERSTORMS ARE EXPECTED TO BECOME MORE WIDESPREAD AS A THUNDERSTORM COMPLEX DEVELOPS OR MOVES INTO THE AREA. LOCALLY HEAVY RAINFALL IS A VERY REAL THREAT OVER THE ENTIRE AREA. .DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY THE COLD FRONT WILL CONTINUE TO SLOWLY MOVE SOUTH THROUGH THE AREA WEDNESDAY INTO THURSDAY MORNING. ADDITIONAL ROUNDS OF THUNDERSTORMS ARE EXPECTED THAT HAVE THE POTENTIAL TO PRODUCE MORE LOCALLY HEAVY RAINFALL. ALTHOUGH SEVERE WEATHER ON WEDNESDAY CANNOT BE RULED OUT...IT WILL BE HIGHLY DEPENDENT ON HOW MUCH DAYTIME HEATING TAKES PLACE. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS POSSIBLE THIS AFTERNOON AND TONIGHT.
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
1213 PM CDT TUE MAY 30 2006
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0330 PM TSTM WND DMG 3 S CLEVELAND 41.46N 90.32W
05/29/2006 HENRY IL TRAINED SPOTTER
SEVERAL 3-4 INCH DIAMETER LIMBS DOWN ALONG A 1.5 TO 2
MILE AREA ALONG HIGHWAY 6 FROM JUST EAST OF INTERSTATE 80
INTERCHANGE TO EAST 720TH STREET. ALSO ONE 5 TO 6 INCH
DIAMETER TREE DOWN. TIME ESTIMATED.
&&The Quad Cities radar (KDVN), 49 km away, was scanning. The volume nearest the first event began at 19:29 UTC.
2 heavy rain, 1 lightning. Local standard time, as filed.
Near Bennett; lots of ponding of water in fields with roadside ditches full; estimated 1.5 to 2 inches of rain.
Water over (the low spot in the) road in the 6900 block of north Division Street and Goose Creek; traffic being diverted.
Some time between 1500 and 1530 CST lightning struck a home near 76th street and Division in Davenport and started a fire. A passing fire truck returning from an earlier EMS call was flagged down and told about the fire. Damage was reported to be minor.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Iowa in 2006Every state in 2006This day in weather historyWarnings in Iowa, May 2006
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: 5512654, 5512655, 5512656.