A cold front moved into east central Iowa and northwest Illinois during the afternoon hours of June 27th igniting a line of heavy rain-producing thunderstorms. 25 inches.
Every event with a place to put it. 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.
A cold front moved into east central Iowa and northwest Illinois during the afternoon hours of June 27th igniting a line of heavy rain-producing thunderstorms. Rainfall totals averaged between 1.50 and 2.25 inches. Some of the storms also produced hail up to the size of a nickel.
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 27, 2:23 PM CST, 1 hour 22 minutes earlier.
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
323 PM CDT WED JUN 27 2007
.SYNOPSIS...
A COLD FRONT EXTENDS FROM NEAR OSHKOSH WI TO CEDAR RAPIDS IA TO
CHARITON IA THIS AFTERNOON AND IS CONTINUING TO MAKE STEADY PROGRESS. DEW
POINTS BEHIND THE FRONT DROP QUICKLY INTO THE 50S...WITH 40S
TRAILING IN NORTHWEST IOWA. CONVECTION FIRED JUST AHEAD OF AND
ALONG THE FRONT EARLY THIS AFTERNOON. ALOFT...THE MAIN FEATURES
ARE THE UPPER LOW SPINNING OVER SOUTHWEST OKLAHOMA AND THE
NORTHERN STREAM CARRYING AN UPPER TROUGH INTO THE GREAT LAKES.
&&
.SHORT TERM...
FOR THE SHORT TERM...THE PRIMARY CONCERN IS WALKING THE FRONT
AND ASSOCIATED PRECIP THROUGH THE AREA. RISK OF ISOLATED SEVERE
CONTINUES INTO THE EARLY EVENING WITH WET DOWNBURSTS AND POSSIBLY
HAIL. HEAVY RAIN WILL REMAIN AN ISSUE THROUGH THE OVERNIGHT HOURS.
AS THE NORTHERN STREAM TROUGH AND OKLAHOMA LOW INTERACT OVERNIGHT...
FRONT IS LIKELY TO SLOW AND ALMOST STALL NEAR THE IOWA MISSOURI
BORDER. PRECIPITABLE WATERS FROM 1.5 TO 2 AND SLOW FRONTAL
MOVEMENT SUGGEST HEAVY RAIN WILL BE A RISK TONIGHT DEPENDING ON
HOW LONG THE FRONT LINGERS.
THURSDAY PROMISES TO BE A SIGNIFICANT IMPROVEMENT OVER THE LAST
FEW DAYS. WILL HOLD ON TO LOW POPS SOUTHERN ZONES INTO THE MORNING...
AGAIN DUE TO THE SLOW FRONTAL PROGRESS. BY AFTERNOON...LOWER DEW
POINTS SHOULD HAVE SPREAD ACROSS MUCH OF THE AREA...BRINGING
WELCOME RELIEF FROM THE SUMMER HUMIDITY.
.LONG TERM...
NOT MUCH CHANGE TO THE LONGER TERM FORECAST. A DRY AND PLEASANT
WEEKEND IS IN STORE WITH EASTERLY LOW LEVEL FLOW AS WE REMAIN
UNDER THE INFLUENCE OF THE RIDGE THROUGH SATURDAY. HEAT STILL ON
TARGET TO CRANK UP NEXT WEEK. WILL HAVE TO WATCH NORTHERN ZONES FOR
POTENTIAL CHANCE OF CONVECTION ALONG THE EDGE OF THE RIDGE...BUT
HAVE KEPT FORECAST DRY THROUGH THE PERIOD FOR NOW.
&&
.AVIATION...
COLD FRONT EXTENDING ACROSS WISCONSIN AND IOWA WILL CONTINUE
SLOWLY SOUTH TONIGHT...TRIGGERING THUNDERSTORMS WITH MAINLY MVFR
CIGS ALONG AND AHEAD OF THE FRONT. FRONT HAS ALREADY CLEARED KCID AND
KDBQ...AND THESE SITES SHOULD EXPERIENCE MAINLY VFR CIGS AND VIS
THROUGH THE PERIOD. FRONT IS EXPECTED TO CLEAR ALL TAF SITES BY BY
18Z THURSDAY.
&&
.DVN WATCHES/WARNINGS/ADVISORIES...
IA...FLASH FLOOD WATCH THROUGH THURSDAY MORNING FOR DES MOINES-HENRY
IA-JEFFERSON-KEOKUK-LEE-LOUISA-VAN BUREN-WASHINGTON.
IL...FLASH FLOOD WATCH THROUGH THURSDAY MORNING FOR HANCOCK-HENDERSON-
MCDONOUGH-MERCER-WARREN.
MO...FLASH FLOOD WATCH THROUGH THURSDAY MORNING FOR CLARK-SCOTLAND.
&&
33HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE QUAD CITIES IA IL 446 AM CDT WED JUN 27 2007 IAZ040>042-051>054-063>068-076>078-087>089-098-099-ILZ001-002-007- 009-015>018-024>026-034-035-MOZ009-010-281000- 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- 446 AM CDT WED JUN 27 2007 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 SCATTERED THUNDERSTORMS WILL ACCOMPANY A COLD FRONT AS IT MOVES THROUGH THE OUTLOOK AREA TODAY AND TONIGHT. THERE IS LITTLE THREAT OF SEVERE WEATHER. HOWEVER...LOCALLY HEAVY RAINS IN EXCESS OF 1 INCH PRODUCING MINOR FLOODING OF LOW LYING AND URBAN AREAS WILL BE POSSIBLE. .DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY THERE IS A CHANCE OF THUNDERSTORMS THURSDAY MORNING ALONG AND SOUTH OF HIGHWAY 34. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS NOT EXPECTED TODAY OR TONIGHT.
IAZ067-078-089-ILZ015-024>026-272045-
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
242 PM CDT WED JUN 27 2007
THE NATIONAL WEATHER SERVICE IN THE QUAD CITIES HAS ISSUED A SPECIAL
WEATHER STATEMENT EFFECTIVE UNTIL 345 PM CDT FOR THE FOLLOWING
COUNTIES...
IN IOWA
DES MOINES...MUSCATINE AND LOUISA
IN ILLINOIS
ROCK ISLAND...WARREN...HENDERSON AND MERCER
INCLUDING THE FOLLOWING LOCATIONS
ALEDO...ANDALUSIA...BODEN...BURGESS...ELIZA...HAMLET...ILLINOIS
CITY...JOY...KEITHSBURG...LITTLE YORK...MANNON...MATHERVILLE...
MILLERSBURG...NEW BOSTON...OAK GROVE...REYNOLDS...ROZETTA...
SEATON...SHALE CITY...TAYLOR RIDGE...AMBER...COLUMBUS CITY...
COLUMBUS JUNCTION...FAIRPORT...FRUITLAND...GRANDVIEW...LETTS...
MONTPELIER...MORNING SUN...MUSCATINE...OAKVILLE...TOOLESBORO AND
WAPELLO
...A LINE OF STRONG THUNDERSTORMS MOVING SOUTHEAST ACROSS THE AREA...
AT 240 PM CDT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
LINE OF THUNDERSTORMS ALONG AN AXIS EXTENDING FROM 7 MILES NORTH OF
MUSCATINE TO 11 MILES WEST OF COLUMBUS CITY...MOVING EAST TO
SOUTHEAST AT 10 TO 15 MPH. THESE STORMS WILL REACH A MOLINE...TO
MUSCATINE...AND TO A NORTHWEST WAPELLO LINE BY AROUND 255 PM CDT.
EXPECT WIND GUSTS TO 45 MPH...HALF INCH HAIL AND TORRENTIAL
DOWNPOURS WITH THE STRONGER STORMS AS THEY PASS BY.
HEAVY RAINS MAY FLOOD LOW LYING AREAS SUCH AS DITCHES AND
UNDERPASSES. AVOID THESE AREAS AND DO NOT CROSS FLOODED ROADS AS THEY
MAY BE WASHED OUT. WATER LEVELS OF SMALL STREAMS AND RIVERS MAY ALSO
RISE...THEREFORE SEEK HIGHER GROUND IF THREATENED BY FLOOD WATERS.
12SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE QUAD CITIES IA IL 351 PM CDT WED JUN 27 2007 ILZ017-018-272200- PUTNAM IL-BUREAU IL- 351 PM CDT WED JUN 27 2007 ...THUNDERSTORMS WITH HEAVY RAIN CONTINUE OVER PORTIONS OF BUREAU AND PUTNAM COUNTIES... AREAS OF SHOWERS AND THUNDERSTORMS WILL MOVE EAST ACROSS PORTIONS OF BUREAU AND PUTNAM COUNTIES THROUGH 5 PM. THESE STORMS ARE MOVING ACROSS SOME OF THE SAME AREAS THAT WERE HIT BY HEAVY RAIN YESTERDAY. ADDITIONAL RAINFALL TOTALS AROUND 1 INCH IS LIKELY UNDER THESE STORMS...WHICH MAY CAUSE SIGNIFICANT RUN OFF AND MINOR FLOODING. EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE ELEVATED LEVELS ON SMALL CREEKS AND STREAMS...AND PONDING OF WATER ON COUNTRY ROADS AND FARMLAND ALONG THE BANKS OF CREEKS AND STREAMS. ALSO...DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE ROADWAY. 12
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
420 PM CDT WED JUN 27 2007
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0405 PM HAIL DAVENPORT 41.56N 90.60W
06/27/2007 E0.25 INCH SCOTT IA BROADCAST MEDIA
PUBLIC REPORTED SMALL HAIL NEAR FARM AND FLEET
&&
15PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
430 PM CDT WED JUN 27 2007
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0416 PM HEAVY RAIN 1 W ATALISSA 41.57N 91.19W
06/27/2007 U0.00 INCH MUSCATINE IA LAW ENFORCEMENT
PUBLIC REPORTS PONDING OF WATER ON HWY 6 WEST OF ATALISSA
&&
15SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE QUAD CITIES IA IL 435 PM CDT WED JUN 27 2007 IAZ066-068-ILZ015-272245- CLINTON IA-SCOTT IA-ROCK ISLAND IL- 435 PM CDT WED JUN 27 2007 ...HEAVY RAIN OVER MUCH OF THE AREA... AREAS OF SHOWERS AND THUNDERSTORMS WILL MOVE SLOWLY EAST ACROSS PORTIONS OF CLINTON...SCOTT AND ROCK ISLAND COUNTIES THROUGH 6 PM. NATIONAL WEATHER SERVICE DOPPLER RADAR WAS INDICATING THAT UP TO 1.4 INCHES OF RAIN HAD FALLEN FROM MAYSVILLE TO DAVENPORT OVER THE PAST TWO HOURS. WITH ADDITIONAL RAINFALL OF UP TO ANOTHER INCH POSSIBLE THROUGH 6 PM...SIGNIFICANT RUN OFF AND MINOR FLOODING WILL BE LIKELY IN MUCH OF THE AREA THROUGH EARLY EVENING. THE RAIN IS EXPECTED TO DECREASE AFTER 6 PM. EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE ELEVATED LEVELS ON SMALL CREEKS AND STREAMS...AND PONDING OF WATER IN URBAN AREAS... HIGHWAYS...STREETS AND UNDERPASSES AS WELL AS OTHER POOR DRAINAGE AREAS AND LOW LYING SPOTS. ALSO...DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE ROADWAY. 12
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
437 PM CDT WED JUN 27 2007
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0436 PM HEAVY RAIN 2 WNW MAYSVILLE 41.66N 90.75W
06/27/2007 E2.00 INCH SCOTT IA PUBLIC
&&
15The Quad Cities radar (KDVN), 127 km away, was scanning. The volume nearest the first event began at 21:45 UTC.
1 flash flood. Local standard time, as filed.
A torrential downpour created flash flooding of several roads in Richland, IA. The water depth over the roads was reported to have been several inches deep.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Iowa in 2007Every state in 2007This day in weather historyWarnings in Iowa, June 2007
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: 45573.