Alert archive / Iowa / Flash Flood Warnings in 2004
Flash Flood Warning 4, NWS Quad Cities, IA
NWS Quad Cities, IA issued this flash flood warning at May 22, 2004, 3:21 AM CDT for Delaware County, Dubuque County, Iowa. It was in force for 6 hr. 2 reports came from inside the area while it was in force.
The area
The outline as issued, with what was reported inside it.
The facts
- Issued
- May 22, 2004, 3:21 AM CDT (08:21 UTC)
- Expired
- May 22, 2004, 9:15 AM CDT
- In force
- 6 hr
- Issued by
- NWS Quad Cities, IA
- Area
- Counties, with a storm outline in the text
Counties Delaware County, IA, Dubuque County, IA
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| May 22, 3:25 AM CDT | FLASH FLOOD | N New Vienna, IA | NEW WEIN COUNTY PARK EVACUATED. |
| May 22, 4:10 AM CDT | FLASH FLOOD | Manchester, IA | DITCHES AND STREAMS OUT OF THIER BANKS. DEBRIS OVER HWY 38 BETWEEN DELEWARE ADN GREELEY AT MANCHESTER. 1.4 INCHES OF RAIN SINCE MIDNIGHT. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Lincoln, IL (KILX), launched 00:00Z, 8.4 hours before the alert went out and 330 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
- 1120 J/kg
- Mixed-layer CIN
- -86 J/kg
- Mixed-layer LCL
- 1669 m above ground
- 0-6 km bulk shear
- 25 kt
- 0-1 km storm-relative helicity
- 50 m²/s²
- 0-3 km storm-relative helicity
- 144 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.1
The text
As transmitted, in the capitals the NWS used until 2016.
000
WGUS53 KDVN 220821
FFWDVN
IAC055-061-221415-
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
321 AM CDT SAT MAY 22 2004
THE NATIONAL WEATHER SERVICE IN THE QUAD CITIES HAS ISSUED A
* FLASH FLOOD WARNING FOR...
DUBUQUE COUNTY IN NORTHEAST IOWA
DELAWARE COUNTY IN NORTHEAST IOWA
* UNTIL 915 AM CDT
* AT 313 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
THUNDERSTORMS PRODUCING VERY HEAVY RAIN MOVING OVER DUBUQUE
COUNTY. WATER TO ONE FOOT DEEP WAS REPORTED IN SOME STREETS IN
MANCHESTER. THESE STORMS WILL LIKELY PRODUCE ADDITIONAL FLOODING
OVER DELAWARE AND DUBUQUE COUNTIES.
* LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
MANCHESTER....DUBUQUE...WORTHINGTON...SHERRILL...SAGEVILLE...
RYAN...RICKARDSVILLE...PEOSTA...ONEIDA...NEW VIENNA...
MASONVILLE...MANCHESTER... LUXEMBURG...HOPKINTON...HOLY
CROSS...GREELEY...FARLEY...EDGEWOOD...EARLVILLE...DYERSVILLE...
DURANGO...DUNDEE...DELHI...DELAWARE...COLESBURG...
CENTRALIA...BANKSTON...BALLTOWN AND ASBURY.
EXCESSIVE RUNOFF FROM THIS STORM WILL CAUSE FLOODING OF FLOOD-PRONE
AND LOW LYING AREAS. MOVE IMMEDIATELY FROM THESE AREAS TO HIGHER
GROUND.
BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING...ESPECIALLY WHILE DRIVING.
PLEASE RELAY YOUR REPORT OF FLOODING TO LAW ENFORCEMENT FOR RELAY TO
THE NATIONAL WEATHER SERVICE IN THE QUAD CITIES.
LAT...LON 4230 9161 4232 9091 4241 9091 4240 9060
4264 9074 4263 9160
$$
JAZ3 follow-up statements
000 WGUS73 KDVN 221033 FFSDVN IAC055-061-221415- FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE QUAD CITIES IA IL 533 AM CDT SAT MAY 22 2004 ...FLASH FLOOD WARNING CONTINUES FOR DUBUQUE AND DELAWARE COUNTIES UNTIL 915 AM CDT... ALTHOUGH THE SHOWERS AND THUNDERSTORMS WITH HEAVY RAIN WERE EXITING THE AREA...FLOODING AND THE FLOODING THREAT STILL PERSIST. REPORTS FROM THE MANCHESTER AREA INDICATE THAT WATER WAS FLOWING OVER PORTIONS OF IOWA HIGHWAY 38. ALSO...SMALL STREAMS AND DITCHES IN THE WARNED AREA WERE RUNNING NEAR OR ABOVE BANKFULL. ANOTHER AREA OF SHOWERS AND THUNDERSTORMS WAS ENTERING CENTRAL IOWA FROM THE WEST. THIS ACTIVITY WILL REACH THE WARNED AREA LATER THIS MORNING. BE ON THE LOOKOUT FOR POSSIBLE ADDITIONAL HEAVY RAIN...AND PROLONGED FLOODING. DO NOT DRIVE YOUR VEHICLE INTO WATER COVERED ROADWAYS. THE WATER MAY BE TOO DEEP TO CROSS SAFELY OR THE ROAD COULD BE WASHED OUT. VEHICLES CAUGHT IN RISING WATER SHOULD BE ABANDONED QUICKLY. REPORT FLASH FLOODING TO YOUR NEAREST LOCAL LAW ENFORCEMENT AGENCY... FOR RELAY TO THE NATIONAL WEATHER SERVICE IN THE QUAD CITIES. $$ JAZ
000 WGUS73 KDVN 221259 FFSDVN IAC055-061-221415- FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE QUAD CITIES IA IL 758 AM CDT SAT MAY 22 2004 ...FLASH FLOOD WARNING CONTINUES FOR DUBUQUE AND DELAWARE COUNTIES UNTIL 915 AM CDT... AT 750 AM CDT...ADDITIONAL SHOWERS AND THUNDERSTORMS WERE ENTERING WESTERN PORTIONS OF THE WARNED AREA. THESE STORMS ARE CAPABLE OF PRODUCING ANOTHER HALF INCH TO INCH OF RAIN...AGGRAVATING THE FLOODING SITUATION. 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. REPORT FLASH FLOODING TO YOUR NEAREST LOCAL LAW ENFORCEMENT AGENCY... FOR RELAY TO THE NATIONAL WEATHER SERVICE IN THE QUAD CITIES. $$ JAZ
000 WGUS73 KDVN 221402 FFSDVN IAC055-061-221415- FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE QUAD CITIES IA IL 903 AM CDT SAT MAY 22 2004 ...FLASH FLOOD WARNING FOR DUBUQUE AND DELAWARE COUNTIES WILL EXPIRE AT 915 AM CDT... ALTHOUGH AREAS OF RAIN WERE FALLING ACROSS THE WARNED AREA...NO FLOODING HAS BEEN REPORTED. THUS THE WARNING WILL BE ALLOWED TO EXPIRE AT 915 AM. $$ JAZ
The office that day
Everything else NWS Quad Cities, IA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 22, 2:48 AM CDT | Severe Thunderstorm Warning | DVN | Delaware, Dubuque | 42 min |
| May 22, 3:29 AM CDT | Severe Thunderstorm Warning | DVN | Jackson | 31 min |
| May 22, 3:40 AM CDT | Flash Flood Warning | DVN | Benton, Linn | 6 hr |
| May 22, 3:55 AM CDT | Severe Thunderstorm Warning | DVN | Clinton, Jackson | 65 min |
| May 22, 9:14 AM CDT | Severe Thunderstorm Warning | DVN | Muscatine, Scott | 76 min |
Nearby
Flash Flood Warnings in Iowa, 2004Every flash flood warning in 2004
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive.