Alert archive / Iowa / Flash Flood Warnings in 2011
Flash Flood Warning 11, NWS Quad Cities, IA
NWS Quad Cities, IA issued this flash flood warning at Jun 9, 2011, 11:13 PM CDT for Lee County, Iowa; Clark County, Missouri; Hancock County, Illinois. 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 outline as issued.
The facts
- Issued
- Jun 9, 2011, 11:13 PM CDT (04:13 UTC)
- Expired
- Jun 10, 2011, 5:15 AM CDT
- In force
- 6 hr
- Issued by
- NWS Quad Cities, IA
- Area
- Storm-based polygon
- Flood severity
- None
Counties Lee County, IA, Hancock County, IL, Clark County, MO
The radar
The Quad Cities radar (KDVN), 162 km from the middle of the area, began a volume at 04:15 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 nearest sounding before it
Davenport, (KDVN), launched 00:00Z, 4.2 hours before the alert went out and 165 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.
- Mixed-layer CAPE
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 696 m above ground
- 0-6 km bulk shear
- 44 kt
- 0-1 km storm-relative helicity
- 63 m²/s²
- 0-3 km storm-relative helicity
- 147 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
497
WGUS53 KDVN 100413
FFWDVN
IAC111-ILC067-MOC045-101015-
/O.NEW.KDVN.FF.W.0011.110610T0413Z-110610T1015Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
1113 PM CDT THU JUN 9 2011
THE NATIONAL WEATHER SERVICE IN THE QUAD CITIES HAS ISSUED A
* FLASH FLOOD WARNING FOR...
SOUTHEASTERN CLARK COUNTY IN NORTHEAST MISSOURI...
SOUTH CENTRAL LEE COUNTY IN SOUTHEAST IOWA...
THIS INCLUDES THE CITY OF KEOKUK...
HANCOCK COUNTY IN WEST CENTRAL ILLINOIS...
THIS INCLUDES THE CITY OF CARTHAGE...
* UNTIL 515 AM CDT FRIDAY
* AT 1106 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR
INDICATED FLASH FLOODING FROM A THUNDERSTORM OVER THE WARNED
AREA...ESPECIALLY FROM NEAR GREGORY LANDING TO SUTTER...WARSAW
AND BASCO.
* LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO WARSAW...LA
HARPE...HAMILTON...FERRIS...BURNSIDE...ADRIAN...WAYLAND AND
ALEXANDRIA.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
ADDITIONAL RAINFALL OF 1 TO 2 INCHES IS EXPECTED.
BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING...ESPECIALLY WHILE DRIVING.
FLASH FLOODING IS LIKELY ON SHUHART CREEK...CRYSTAL GLEN CREEK...BEAR
CREEK AND PETIT CREEK.
PLEASE REPORT ANY FLOODING OR DAMAGE TO YOUR LOCAL LAW ENFORCEMENT
AGENCY FOR RELAY TO THE NATIONAL WEATHER SERVICE.
&&
LAT...LON 4019 9150 4021 9152 4024 9151 4025 9164
4044 9163 4063 9091 4019 9092
$$1 follow-up statement
868
WGUS73 KDVN 101021
FFSDVN
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
521 AM CDT FRI JUN 10 2011
IAC111-ILC067-MOC045-101026-
/O.EXP.KDVN.FF.W.0011.000000T0000Z-110610T1015Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
LEE IA-HANCOCK IL-CLARK MO-
521 AM CDT FRI JUN 10 2011
...THE FLASH FLOOD WARNING HAS EXPIRED FOR SOUTHEASTERN CLARK...
HANCOCK AND SOUTH CENTRAL LEE COUNTIES...
AS OF 515 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS
INDICATING THAT THE HEAVY RAIN THREAT HAD SHIFTED NORTHEAST OF THE
WARNING AREA. THUS THE FLASH FLOOD WARNING HAS BEEN ALLOWED TO
EXPIRE. WIDELY SCATTERED SHOWERS OR A THUNDERSTORM MAY STILL MOVE
ACROSS THE PREVIOUSLY WARNED AREA THROUGH 8 AM CDT.
LAT...LON 4019 9150 4021 9152 4024 9151 4025 9164
4044 9163 4063 9091 4019 9092
$$
12The office that day
Everything else NWS Quad Cities, IA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 10, 2:26 AM CDT | Flash Flood Warning | DVN | Iowa, Johnson, Keokuk, Washington | 5 hr |
| Jun 10, 4:07 AM CDT | Special Weather Statement | DVN | Clinton, Louisa, Muscatine, Scott | 113 min |
| Jun 10, 6:21 AM CDT | River Flood Warning | DVN | Keokuk | 8 days |
| Jun 10, 6:53 AM CDT | River Flood Warning | DVN | Johnson, Washington | 59 hr |
| Jun 10, 9:04 AM CDT | River Flood Warning | DVN | Iowa, Johnson | 5 days |
| Jun 10, 10:40 AM CDT | River Flood Warning | DVN | Des Moines | 9 days |
| Jun 10, 10:40 AM CDT | River Flood Warning | DVN | Des Moines, Lee | 9 days |
| Jun 10, 10:40 AM CDT | River Flood Warning | DVN | Johnson, Louisa, Washington | 24 hr |
| Jun 10, 4:51 PM CDT | Severe Thunderstorm Warning | DVN | Lee, Van Buren | 39 min |
| Jun 10, 5:29 PM CDT | Severe Thunderstorm Warning | DVN | Lee | 61 min |
| Jun 9, 10:58 PM CDT | Special Weather Statement | DVN | Clark | 107 min |
| Jun 10, 4:51 AM CDT | Special Weather Statement | DVN | Bureau, Henry, Whiteside | 84 min |
| Jun 10, 6:31 PM CDT | Severe Thunderstorm Warning | DVN | Hancock, McDonough | 59 min |
Nearby
Flash Flood Warnings in Iowa, 2011Flash Flood Warnings in Missouri, 2011Flash Flood Warnings in Illinois, 2011Every flash flood warning in 2011
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.