Alert archive / Iowa / Flash Flood Warnings in 2007

Flash Flood Warning 9, NWS Quad Cities, IA

April 2, 2007Dubuque County, Jackson County, Jones County, Iowa

NWS Quad Cities, IA issued this flash flood warning at Apr 2, 2007, 11:58 PM CDT for Dubuque County, Jackson County, Jones County, Iowa. It was in force for 4 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
Apr 2, 2007, 11:58 PM CDT (04:58 UTC)
Expired
Apr 3, 2007, 4:00 AM CDT
In force
4 hr
Issued by
NWS Quad Cities, IA
Area
Whole counties

Counties Dubuque County, IA, Jackson County, IA, Jones County, IA

The radar

The Quad Cities radar (KDVN), 75 km from the middle of the area, began a volume at 05:01 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, 5.0 hours before the alert went out and 77 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-pSkew-T log-p diagram, Davenport, at 00:00Z on 2007-04-03Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Davenport, at 00:00Z on 2007-04-03The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 178 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1600 m above ground
0-6 km bulk shear
50 kt
0-1 km storm-relative helicity
178 m²/s²
0-3 km storm-relative helicity
318 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

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

000 
WGUS53 KDVN 030501
FFWDVN
IAC061-097-105-030900-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
1158 PM CDT MON APR 2 2007

THE NATIONAL WEATHER SERVICE IN THE QUAD CITIES HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  NORTHERN JACKSON COUNTY IN EAST CENTRAL IOWA...
  NORTHEAST JONES COUNTY IN EAST CENTRAL IOWA...
  SOUTHER AND CENTRAL DUBUQUE COUNTY IN NORTHEAST IOWA...

* UNTIL 400 AM CDT

* AT 1153 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  FLASH FLOODING FROM A THUNDERSTORM OVER THE WARNED AREA.

* LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO DUBUQUE... 
  ZWINGLE...WORTHINGTON...ST. DONATUS...PEOSTA...FARLEY...   
  EPWORTH...CENTRALIA...CASCADE AND BERNARD.

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE 
DANGERS OF FLOODING...ESPECIALLY WHILE DRIVING. DO NOT DRIVE ON 
WATER COVERED ROADS.

FLOODING OF SMALL STREAMS AND CREEKS...COUNTY ROADS...AND LOW LYING
FARMLAND IS LIKELY.

LAT...LON 4251 9067 4247 9065 4244 9059 4235 9045
      4224 9080 4214 9113 4242 9112

$$

WOLF

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 2, 9:42 PM CDTSevere Thunderstorm WarningDVNBenton49 min
Apr 2, 9:56 PM CDTSevere Thunderstorm WarningDVNLinn64 min
Apr 2, 10:02 PM CDTSevere Thunderstorm WarningDVNDelaware43 min
Apr 2, 10:33 PM CDTSevere Thunderstorm WarningDVNJones57 min
Apr 2, 10:45 PM CDTSevere Thunderstorm WarningDVNBuchanan, Delaware60 min
Apr 2, 10:56 PM CDTSevere Thunderstorm WarningDVNLinn34 min
Apr 2, 10:59 PM CDTSevere Thunderstorm WarningDVNJackson61 min
Apr 2, 11:19 PM CDTSevere Thunderstorm WarningDVNDubuque56 min
Apr 2, 11:24 PM CDTFlash Flood WarningDVNDelaware, Linn4 hr
Apr 2, 11:34 PM CDTFlash Flood WarningDVNBuchanan4 hr
Apr 2, 11:57 PM CDTSevere Thunderstorm WarningDVNJackson33 min
Apr 2, 11:58 PM CDTFlash Flood WarningDVNDubuque, Jackson, Jones4 hr
Apr 3, 1:01 AM CDTFlash Flood WarningDVNDelaware3 hr
Apr 3, 2:42 AM CDTFlash Flood WarningDVNBuchanan, Delaware6 hr
Apr 3, 2:42 AM CDTFlash Flood WarningDVNBuchanan, Delaware, Dubuque, Jackson, Jones6 hr
Apr 3, 4:19 AM CDTSevere Thunderstorm WarningDVNJohnson56 min
Apr 3, 4:40 AM CDTSevere Thunderstorm WarningDVNKeokuk25 min
Apr 3, 2:08 PM CDTWind AdvisoryDVNBenton, Buchanan, Cedar, Clinton, Delaware, Des Moines and 15 more26 hr

Nearby

Flash Flood Warnings in Iowa, 2007Every flash flood warning in 2007

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.