Alert archive / Iowa / Flash Flood Warnings in 2010
Flash Flood Warning 54, NWS Quad Cities, IA
NWS Quad Cities, IA issued this flash flood warning at Aug 3, 2010, 1:27 AM CDT for 4 counties in Iowa. It was in force for 6 hr. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Aug 3, 2010, 1:27 AM CDT (06:27 UTC)
- Expired
- Aug 3, 2010, 7:30 AM CDT
- In force
- 6 hr
- Issued by
- NWS Quad Cities, IA
- Area
- Storm-based polygon
- Flood severity
- None
Counties Iowa County, IA, Johnson County, IA, Keokuk County, IA, Washington County, IA
The radar
The Quad Cities radar (KDVN), 109 km from the middle of the area, began a volume at 06:29 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
What forecasters said that day
The local office's own words before this flash flood warning went out, 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 this flash flood warning went out at Aug 2, 9:19 PM CDT, 4 hours 8 minutes earlier.
Area forecast discussion, Aug 2, 9:19 PM CDT, 4 hours 8 minutes before
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</html>Hazardous weather outlook, Aug 2, 4:45 AM CDT, 20 hours 42 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE QUAD CITIES IA IL 445 AM CDT MON AUG 2 2010 IAZ040>042-051>054-063>068-076>078-087>089-098-099-ILZ001-002-007- 009-015>018-024>026-034-035-MOZ009-010-030945- 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- 445 AM CDT MON AUG 2 2010 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 A COMPLEX OF THUNDERSTORMS OVER WESTERN IOWA THIS MORNING MAY MOVE EAST TO AFFECT THE IOWA PORTIONS OF THE OUTLOOK AREA LATE THIS MORNING OR EARLY AFTERNOON. THESE STORMS ARE NOT EXPECTED TO APPROACH SEVERE LIMITS...BUT MAY BRING A BRIEF HEAVY RAINFALL. SOME ISOLATED TO SCATTERED STORMS ARE POSSIBLE THIS AFTERNOON AND EARLY EVENING AS WELL. IT WILL BE VERY HOT AND HUMID OVER SOUTHEAST IOWA AND NORTHEAST MISSOURI THIS AFTERNOON AND EARLY EVENING. HEAT INDEX VALUES MAY HOVER AROUND 100 DEGREES FOR A FEW HOURS. TONIGHT A NEW ROUND OF THUNDERSTORMS ARE EXPECTED TO MOVE INTO THE AREA FROM THE WEST BEGINNING IN THE MID TO LATE EVENING HOURS. SOME OF THESE STORMS MAY BE SEVERE...WITH THE MAIN RISK BEING DAMAGING WINDS AND LARGE HAIL...ESPECIALLY IN THE MID TO LATE EVENING HOURS. OVERNIGHT THE THREAT SHIFTS TO VERY HEAVY RAINFALL AND FLASH FLOODING AS STORMS REPEATEDLY MOVE OVER THE SAME AREAS. THE GREATEST RISK OF THIS OCCURRING IS ALONG AND NORTH OF THE INTERSTATE 80 CORRIDOR. LOCAL RAINFALL AMOUNTS MAY EXCEED 3 INCHES. THIS RAINFALL MAY AGGRAVATE ONGOING RIVER FLOODING OR CAUSE NEW RISES ON OTHER RIVERS. AREA RIVERS ARE EXPERIENCING FLOODING. PLEASE SEE THE LATEST FLOOD STATEMENTS AND FLOOD WARNINGS FOR DETAILS. .DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY SEVERAL ROUNDS OF THUNDERSTORMS ARE EXPECTED TUESDAY THROUGH WEDNESDAY NIGHT. THE STORM PREDICTION CENTER HAS A SLIGHT RISK OF SEVERE THUNDERSTORMS ACROSS THE ENTIRE OUTLOOK AREA ON TUESDAY. WHILE ISOLATED DAMAGING WINDS ARE POSSIBLE THE GREATER CONCERN WILL BE TORRENTIAL RAINS PRODUCING FLASH FLOODING. SUCCESSIVE BOUTS OF THUNDERSTORMS MAY ALSO RENEW OR WORSEN RIVER FLOODING. A DANGEROUSLY HOT DAY IS EXPECTED ON TUESDAY. MAXIMUM TEMPERATURES IN THE LOWER TO MID 90S...COMBINED WITH OPPRESSIVE DEW POINTS WELL INTO THE 70S TO AROUND 80...WILL CREATE HEAT INDICIES OF 100 TO 110. WHILE NOT QUITE AS HOT ON WEDNESDAY...HEAT INDICIES MAY STILL BE IN THE 100 TO 105 RANGE ESPECIALLY SOUTH OF INTERSTATE 80. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION WILL NOT BE NEEDED TODAY OR TONIGHT. HOWEVER REPORTS OF RAINFALL OVER AN INCH OR FLOODING WOULD BE APPRECIATED. HAASE/LE
In the hours before
Special weather statement, Aug 3, 1:26 AM CDT, 1 minute before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE QUAD CITIES IA IL 126 AM CDT TUE AUG 3 2010 IAZ051>054-063>068-076>078-087>089-098-099-ILZ007-009-015>018- 024>026-030830- BENTON-LINN-JONES-JACKSON-IOWA-JOHNSON-CEDAR-CLINTON-MUSCATINE- SCOTT-KEOKUK-WASHINGTON-LOUISA-JEFFERSON-HENRY IA-DES MOINES- VAN BUREN-LEE-CARROLL-WHITESIDE-ROCK ISLAND-HENRY IL-BUREAU- PUTNAM-MERCER-HENDERSON-WARREN- INCLUDING THE CITIES OF...VINTON...CEDAR RAPIDS...ANAMOSA... MAQUOKETA...MARENGO...IOWA CITY...TIPTON...CLINTON...MUSCATINE... BETTENDORF...DAVENPORT...SIGOURNEY...WASHINGTON...WAPELLO... FAIRFIELD...MOUNT PLEASANT...BURLINGTON...KEOSAUQUA.... FORT MADISON...MOUNT CARROLL...STERLING...ROCK FALLS...MOLINE... ROCK ISLAND...KEWANEE...PRINCETON...HENNEPIN...ALEDO...OQUAWKA... MONMOUTH 126 AM CDT TUE AUG 3 2010 ...NUMEROUS THUNDERSTORMS DEVELOPING... AT 120 AM DOPPLER RADAR INDICATED NUMEROUS THUNDERSTORMS DEVELOPING ACROSS EASTERN IOWA BETWEEN HIGHWAY 20 AND HIGHWAY 34. THESE STORMS WERE PRODUCING TORRENTIAL RAINS OF OVER 2 INCHES PER HOUR AND FREQUENT TO CONTINUOUS CLOUD TO GROUND LIGHTNING. SOME OF THE STRONGER STORMS WILL ALSO PRODUCE WIND GUSTS TO 40 TO 50 MPH. BE ALERT FOR FLASH FLOODING AND MOVE TO HIGHER GROUND IF FLOODING IS OCCURRING OR A WARNING IS ISSUED. HAASE
The office that day
Everything else NWS Quad Cities, IA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 3, 6:16 AM CDT | River Flood Warning | DVN | Jefferson, Johnson, Louisa, Washington | 4 days |
| Aug 3, 7:22 AM CDT | Areal Flood Warning | DVN | Iowa, Johnson, Keokuk, Washington | 12 hr |
| Aug 3, 12:17 PM CDT | Heat Advisory | DVN | Des Moines, Henry, Jefferson, Lee, Van Buren | 9 hr |
| Aug 3, 2:13 PM CDT | River Flood Warning | DVN | Keokuk | 5 days |
Nearby
Flash Flood Warnings in Iowa, 2010Every flash flood warning in 2010
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; radar from the NEXRAD Level II archive.