Alert archive / Iowa / River Flood Warnings in 2009
River Flood Warning 104, NWS Quad Cities, IA
NWS Quad Cities, IA issued this river flood warning at Jul 10, 2009, 9:10 PM CDT for Clinton County, Scott County, Iowa. It took effect at Jul 11, 2009, 7:00 AM CDT. It was in force for 37 hr.
The area
The counties it named.
The facts
- Issued
- Jul 10, 2009, 9:10 PM CDT (02:10 UTC)
- In effect from
- Jul 11, 2009, 7:00 AM CDT
- Expired
- Jul 12, 2009, 8:08 PM CDT
- In force
- 37 hr
- Issued by
- NWS Quad Cities, IA
- Flood severity
- Minor
Counties Clinton County, IA, Scott County, IA
The radar
The Quad Cities radar (KDVN), 17 km from the middle of the area, began a volume at 02:12 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.
The river
Written for the forecast point Wapsipinicon River near DeWitt (DEWI4). The gauge peaked at 11.16 ft at Jul 12, 2009, 4:00 AM CDT.
- Action stage
- 10 ft
- Minor stage
- 11 ft
- Moderate stage
- 11.5 ft
- Major stage
- 12.5 ft
This gauge today: stage, forecast and historic crests
Stage from the USGS instantaneous record for site 05422000, one reading an hour, from a day before the product to a day after it ended. Flood stages are today's.
What forecasters said that day
The local office's own words before this river 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 river flood warning went out at Jul 10, 4:00 PM CDT, 5 hours 10 minutes earlier.
Area forecast discussion, Jul 10, 4:00 PM CDT, 5 hours 10 minutes before
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</html>Hazardous weather outlook, Jul 10, 4:40 AM CDT, 16 hours 30 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE QUAD CITIES IA IL 440 AM CDT FRI JUL 10 2009 IAZ040>042-051>054-063>068-076>078-087>089-098-099-ILZ001-002-007- 009-015>018-024>026-034-035-MOZ009-010-111000- 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- 440 AM CDT FRI JUL 10 2009 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 THUNDERSTORM COMPLEX ACROSS THE NORTHERN PORTIONS OF THE OUTLOOK AREA MAY PRODUCE WIND GUSTS UP TO 60 MPH AND HAIL UP TO THE SIZE OF QUARTERS ALONG AND NORTH OF HIGHWAY 30 THROUGH MID MORNING. IF THIS STORM SYSTEM CAN MAINTAIN ITS STRENGTH...IT MAY BE ABLE TO PRODUCE STRONG WINDS AND HAIL AS FAR SOUTH AS THE INTERSTATE 80 CORRIDOR THROUGH LATE MORNING. OTHER STORMS MAY DEVELOP IN SOUTH CENTRAL IOWA EARLY THIS MORNING AND EVENTUALLY MOVE ACROSS AREAS SOUTH OF INTERSTATE 80 THROUGH MIDDAY. IF THIS OCCURS...THESE STORMS WOULD ALSO HAVE THE POTENTIAL TO PRODUCE WIND GUSTS OF 45 TO 60 MPH AND HAIL UP TO THE SIZE OF QUARTERS. VERY HEAVY RAINFALL AT RATES OF UP TO 2 INCHES AN HOUR MAY PRODUCE LOCALIZED URBAN AND SMALL STREAM FLOODING AS THESE STORMS PASS THROUGH. AS FOR THE STORM POTENTIAL FOR THIS AFTERNOON AND EVENING...MUCH WILL DEPEND ON HOW MUCH THE ATMOSPHERE CAN RECOVER AND HEAT UP AFTER THE MORNING STORMS EITHER MOVE OUT OF THE AREA OR FALL APART. IF SOME SUNSHINE CAN BREAK OUT FOR TEMPERATURES TO WARM INTO THE 80S...A VERY UNSTABLE AIRMASS WILL BECOME ESTABLISHED ACROSS THE REGION. THEN A COLD FRONT APPROACHING FROM THE WEST SHOULD TRIGGER THUNDERSTORMS BY THIS EVENING. WITH DEEP LAYER SHEAR AND STRENGTHENING MID LEVEL WINDS THERE WILL BE A THREAT FOR SUPERCELL TYPE THUNDERSTORMS WITH DAMAGING WINDS...LARGE HAIL AND A FEW TORNADOES DEVELOPING IN THE OUTLOOK AREA. WIDESPREAD DAMAGING WINDS IN EXCESS OF 70 MPH WILL BECOME THE PRIMARY THREAT IF THE INITIAL STORMS FORM INTO A LINE DURING THE EVENING. LATEST INDICATIONS SUGGEST THAT THIS LINE OF STORMS WILL MAINLY IMPACT AREAS ALONG AND EAST OF THE MISSISSIPPI RIVER TONIGHT. LOCALLY HEAVY RAINFALL WILL AGAIN BE LIKELY WITH ANY STRONG STORMS...AND COMBINED WITH THE RECENT BOUTS OF RAIN MAY CAUSE FLASH FLOODING DUE TO SATURATED SOILS. MANY AREA RIVER AND STREAMS WILL ALSO EXPERIENCE SUBSTANTIAL RISES. THE STORM PREDICTION CENTER HAS THE ENTIRE OUTLOOK AREA UNDER A SLIGHT RISK FOR SEVERE WEATHER TODAY AND TONIGHT. .DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY THUNDERSTORMS MAY BE ONGOING OVER PORTIONS OF THE OUTLOOK AREA SATURDAY MORNING ESPECIALLY ALONG AND SOUTH OF INTERSTATE 80. THERE IS A LOW CHANCE THAT A FEW STORMS WILL RE-STRENGTHEN AND REACH SEVERE LIMITS ALONG AND SOUTH OF THE HIGHWAY 34 CORRIDOR. LATEST INDICATIONS THEN SUGGEST THAT THE NEXT MAIN CHANCE FOR THUNDERSTORMS AFTER THE WEEKEND WILL BE LATE TUESDAY AND TUESDAY NIGHT. IT IS STILL TOO EARLY TO DETERMINE THE THREAT FOR SEVERE WEATHER FOR TUESDAY. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS LIKELY TODAY AND TONIGHT. 12
In the hours before
Local storm report, Jul 10, 4:00 PM CDT, 5 hours 10 minutes before
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</html>Local storm report, Jul 10, 4:14 PM CDT, 4 hours 56 minutes before
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</html>Local storm report, Jul 10, 4:35 PM CDT, 4 hours 35 minutes before
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</html>Local storm report, Jul 10, 4:37 PM CDT, 4 hours 33 minutes before
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</html>Local storm report, Jul 10, 6:24 PM CDT, 2 hours 46 minutes before
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</html>Local storm report, Jul 10, 6:31 PM CDT, 2 hours 39 minutes before
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</html>The office that day
Everything else NWS Quad Cities, IA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 10, 10:52 PM CDT | Severe Thunderstorm Warning | DVN | Benton, Iowa, Johnson, Linn | 53 min |
| Jul 11, 12:06 AM CDT | Special Weather Statement | DVN | Cedar, Johnson, Muscatine | 54 min |
| Jul 11, 12:45 AM CDT | Special Weather Statement | DVN | Muscatine | 60 min |
| Jul 11, 1:33 AM CDT | Special Weather Statement | DVN | Rock Island | 57 min |
Nearby
River Flood Warnings in Iowa, 2009Every river flood warning in 2009
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; the gauge from the NWS water service and the USGS.