Alert archive / Iowa / Flash Flood Warnings in 2002

Flash Flood Warning 18, NWS Quad Cities, IA

June 4, 200210 counties in Iowa; 7 counties in Illinois

NWS Quad Cities, IA issued this flash flood warning at Jun 4, 2002, 11:43 AM CDT for 10 counties in Iowa; 7 counties in 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 4, 2002, 11:43 AM CDT (16:43 UTC)
Expired: Jun 4, 2002, 6:00 PM CDT
In force: 6 hr
Issued by: NWS Quad Cities, IA
Area: Counties, with a storm outline in the text

Counties Buchanan County, IA, Cedar County, IA, Clinton County, IA, Delaware County, IA, Dubuque County, IA, Jackson County, IA, Jones County, IA, Linn County, IA, Muscatine County, IA, Scott County, IA, Carroll County, IL, Henry County, IL, Jo Daviess County, IL, Mercer County, IL, Rock Island County, IL, Stephenson County, IL, Whiteside County, IL

The radar

The Quad Cities radar (KDVN), 29 km from the middle of the area, began a volume at 16:45 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 12:00Z, 4.7 hours before the alert went out and 30 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.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 223 J/kg
Mixed-layer CIN: -151 J/kg
Mixed-layer LCL: 672 m above ground
0-6 km bulk shear: 61 kt
0-1 km storm-relative helicity: 316 m²/s²
0-3 km storm-relative helicity: 310 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 2.1

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

131 
WGUS53 KDVN 041643
FFWMLI
IAC019-031-045-055-061-097-105-113-139-163-ILC015-073-085-131-161-
177-195-042300-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
1142 AM CDT TUE JUN 4 2002

THE NATIONAL WEATHER SERVICE IN THE QUAD CITIES HAS EXTENDED THE

* FLASH FLOOD WARNINGS FOR...
  JACKSON COUNTY IN EAST CENTRAL IOWA
  JONES COUNTY IN EAST CENTRAL IOWA
  LINN COUNTY IN EAST CENTRAL IOWA
  CLINTON COUNTY IN EAST CENTRAL IOWA
  CEDAR COUNTY IN EAST CENTRAL IOWA
  SCOTT COUNTY IN EAST CENTRAL IOWA
  MUSCATINE COUNTY IN EAST CENTRAL IOWA
  DUBUQUE COUNTY IN NORTHEAST IOWA
  DELAWARE COUNTY IN NORTHEAST IOWA
  BUCHANAN COUNTY IN NORTHEAST IOWA
  JO DAVIESS COUNTY IN NORTHWEST ILLINOIS
  STEPHENSON COUNTY IN NORTHWEST ILLINOIS
  CARROLL COUNTY IN NORTHWEST ILLINOIS
  WHITESIDE COUNTY IN NORTHWEST ILLINOIS
  ROCK ISLAND COUNTY IN NORTHWEST ILLINOIS
  HENRY COUNTY IN NORTHWEST ILLINOIS
  MERCER COUNTY IN NORTHWEST ILLINOIS

* UNTIL 600 PM CDT

* AT 11 AM CDT...WIDESPREAD REPORTS OF FLOODING PROBLEMS HAVE BEEN 
  REPORTED ACROSS THE AREA.  ROADS CLOSED DUE TO FLOODING...CREEKS
  AND SMALL RIVERS OVERFLOWING THEIR BANKS...AND HOMES AND 
  BUSINESSES THREATENED BY FLOOD WATERS.

* THOUGH THUNDERSTORMS ARE EXPECTED TO WEAKEN AND MOVE EAST OF THE 
WARNED AREA...IT TAKES TIME FOR FLOOD WATERS TO DRAIN OUT OF 
AFFECTED AREAS.  FURTHER DEVELOPMENT LATER THIS AFTERNOON COULD 
AGGRAVATE CURRENT FLOODING PROBLEMS.  

THESE WARNINGS REPLACE WARNINGS THAT WERE ISSUED EARLIER FOR THESE 
AREAS.  THE FLOODING IS WIDESPREAD AND IS EXPECTED TO LAST INTO THIS 
EVENING.  

WEATHER SERVICE RADAR REPORTS INDICATE THAT AT LEAST 3 TO 5 INCHES 
OF RAIN HAVE FALLEN ACROSS THE WARNED AREA...WITH SOME LOCATIONS 
RECEIVING 6 TO 8 INCHES.  LOCALLY HIGHER AMOUNTS ARE POSSIBLE WHERE 
THE STRONGEST THUNDERSTORMS OCCURRED.

SOME SPECIFIC INFORMATION...
THE MAQUOKETA RIVER IN MANCHESTER IS EXPECTED TO RISE TO A CREST 
NEAR 17 FEET TONIGHT...WHICH IS MODERATE TO MAJOR FLOODING.  AT 16.5 
FT BAILEYS FORD COUNTY PARK STARTS TO FLOOD.  

THE WAPSIPINICON...ROCK...CEDAR...EDWARDS...GALENA...AND THE PECATONICA 
RIVERS HAVE BEEN RISING FAST...AND ARE FORECAST TO RISE ABOVE THEIR 
FLOOD STAGES IN THE NEXT 24 HOURS.  

SMALLER CREEKS AND STREAMS KNOWN TO BE OUT OF THEIR BANKS... 
DUCK..CROW...SILVER...GOOSE...COAL...MAD...MUD...PRARIE...PLEASANT...
SHAFFER...SAND...TURKEY HOLLOW...FANCY...POPE...LITTLE SPRING...FRENCH
...PLUM...HONEY...BEAR...MILL...CATFISH...AND THE WHITEWATER CREEK.  
NUMEROUS OTHER LOCAL CREEKS AND STREAMS ARE SURE TO BE RISING FAST 
AND MAY ALSO BE OUT OF THEIR BANKS.  

THIS IS A DANGEROUS SITUATION...KEEP AN EYE ON LOCAL CREEKS... 
STREAMS...DRAINAGE DITCHES...AND OTHER LOW LYING AREAS.  BE PREPARED 
TO MOVE TO HIGHER GROUND IF YOUR LOCATION IS THREATENED BY FLOOD 
WATERS.

DO NOT DRIVE YOUR VEHICLE INTO WATER COVERED ROADWAYS. THE WATER MAY 
BE TOO DEEP TO CROSS SAFELY OR THE ROAD COULD BE WASHED OUT. VEHICLES
CAUGHT IN RISING WATER SHOULD BE ABANDONED QUICKLY.

LAT...LON 4248 8943 4221 8942 4221 8974 4160 8967
          4160 8988 4117 8989 4118 9046 4108 9048
          4110 9095 4123 9107 4135 9105 4137 9135
          4188 9137 4188 9185 4232 9182 4232 9204
          4261 9204 4265 9080 4250 9064

LRE





$$

The office that day

Everything else NWS Quad Cities, IA issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jun 3, 10:07 PM CDT	Severe Thunderstorm Warning	DVN	Dubuque	53 min
Jun 3, 10:16 PM CDT	Severe Thunderstorm Warning	DVN	Jackson	54 min
Jun 3, 11:13 PM CDT	Flash Flood Warning	DVN	Buchanan, Delaware	6 hr
Jun 4, 4:06 AM CDT	Flash Flood Warning	DVN	Dubuque	5 hr
Jun 4, 5:24 AM CDT	Flash Flood Warning	DVN	Jackson, Jones	5 hr
Jun 4, 6:24 AM CDT	Flash Flood Warning	DVN	Buchanan, Delaware	6 hr
Jun 4, 7:25 AM CDT	Flash Flood Warning	DVN	Cedar, Clinton, Muscatine, Scott	6 hr
Jun 4, 8:43 AM CDT	Flash Flood Warning	DVN	Linn	3 hr
Jun 4, 8:55 AM CDT	Severe Thunderstorm Warning	DVN	Buchanan, Delaware	50 min
Jun 4, 9:06 AM CDT	Flash Flood Warning	DVN	Dubuque	5 hr
Jun 4, 10:02 AM CDT	Severe Thunderstorm Warning	DVN	Linn	43 min
Jun 4, 10:20 AM CDT	Flash Flood Warning	DVN	Jackson, Jones	5 hr
Jun 4, 10:31 AM CDT	Severe Thunderstorm Warning	DVN	Cedar, Muscatine	44 min
Jun 4, 11:04 AM CDT	Severe Thunderstorm Warning	DVN	Delaware	41 min
Jun 3, 10:16 PM CDT	Flash Flood Warning	DVN	Whiteside	6 hr
Jun 3, 11:24 PM CDT	Severe Thunderstorm Warning	DVN	Carroll, Stephenson	76 min
Jun 4, 4:30 AM CDT	Flash Flood Warning	DVN	Carroll, Stephenson, Whiteside	5 hr
Jun 4, 8:57 AM CDT	Flash Flood Warning	DVN	Henry, Mercer, Rock Island	5 hr
Jun 4, 9:38 AM CDT	Flash Flood Warning	DVN	Carroll, Stephenson, Whiteside	5 hr
Jun 4, 1:30 PM CDT	Severe Thunderstorm Warning	DVN	Mercer, Warren	45 min
Jun 4, 1:41 PM CDT	Flash Flood Warning	DVN	Bureau, Putnam	4 hr
Jun 4, 3:54 PM CDT	Severe Thunderstorm Warning	DVN	McDonough	51 min

Nearby

Flash Flood Warnings in Iowa, 2002 Flash Flood Warnings in Illinois, 2002 Every flash flood warning in 2002

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.