Alert archive / Iowa / Flash Flood Warnings in 2002

Flash Flood Warning 17, NWS Quad Cities, IA

June 4, 2002Jackson County, Jones County, Iowa

NWS Quad Cities, IA issued this flash flood warning at Jun 4, 2002, 10:20 AM CDT for Jackson County, Jones County, Iowa. It was in force for 5 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, 10:20 AM CDT (15:20 UTC)
Expired: Jun 4, 2002, 3:15 PM CDT
In force: 5 hr
Issued by: NWS Quad Cities, IA
Area: Counties, with a storm outline in the text

Counties Jackson County, IA, Jones County, IA

The radar

The Quad Cities radar (KDVN), 61 km from the middle of the area, began a volume at 15:22 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, 3.3 hours before the alert went out and 62 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.

926 
WGUS53 KDVN 041520
FFWMLI
IAC097-105-042015-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
1011 AM CDT TUE JUN 4 2002

THE NATIONAL WEATHER SERVICE IN THE QUAD CITIES HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  JACKSON COUNTY IN EAST CENTRAL IOWA
  JONES COUNTY IN EAST CENTRAL IOWA

* UNTIL 315 PM CDT

* AT 1011 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  THUNDERSTORMS PRODUCING VERY HEAVY RAIN WERE LOCATED OVER THE
  WARNED AREA.

* THUNDERSTORMS WERE CONTINUOUSLY REDEVELOPING AND MOVING OVER
  PORTIONS OF THE WARNED AREA...LEADING TO VERY HIGH RAINFALL
  RATES AND THE LIKELIHOOD OF FLASH FLOODING IN THE WARNED AREA.  AN
  ADDITIONAL 1 TO 2 INCHES OF RAINFALL IS LIKELY OVER THE ARE
  ...ALREADY SATURATED FROM EARLIER RAINFALL.

NUMEROUS ROADS ACROSS THE WARNED AREA HAVE BEEN REPORTED AS CLOSED 
DUE TO FLOODING ON THE ROADS.  

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.

EXCESSIVE RUNOFF FROM THIS STORM WILL CAUSE FLASH FLOODING OF SMALL
CREEKS AND STREAMS...HIGHWAYS AND UNDERPASSES. ADDITIONALLY...COUNTRY
ROADS AND FARMLANDS ALONG THE BANKS OF CREEKS AND STREAMS AND OTHER
LOW LYING AREAS ARE SUBJECT TO FLASH FLOODING.

LAT...LON 4230 9046 4205 9019 4204 9092 4197 9091
          4196 9135 4229 9134

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, 10:31 AM CDT	Severe Thunderstorm Warning	DVN	Cedar, Muscatine	44 min
Jun 4, 11:04 AM CDT	Severe Thunderstorm Warning	DVN	Delaware	41 min
Jun 4, 11:43 AM CDT	Flash Flood Warning	DVN	Buchanan, Cedar, Clinton, Delaware, Dubuque, Jackson and 4 more	6 hr

Nearby

Flash Flood Warnings in Iowa, 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.