Alert archive / Illinois / Tornado Warnings in 2004

Tornado Warning 17, NWS Quad Cities, IA

May 30, 2004Henderson County, Illinois; Des Moines County, Iowa

NWS Quad Cities, IA issued this tornado warning at May 30, 2004, 2:45 PM CDT for Henderson County, Illinois; Des Moines County, Iowa. It was in force for 45 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
May 30, 2004, 2:45 PM CDT (19:45 UTC)
Expired
May 30, 2004, 3:30 PM CDT
In force
45 min
Issued by
NWS Quad Cities, IA
Area
Counties, with a storm outline in the text

Counties Des Moines County, IA, Henderson County, IL

The radar

The Quad Cities radar (KDVN), 104 km from the middle of the area, began a volume at 19:46 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
May 30, 12:25 PM CDTTornado WatchSPC7 hr

The nearest sounding before it

Lincoln, IL (KILX), launched 12:00Z, 7.8 hours before the alert went out and 216 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, Lincoln, IL at 12:00Z on 2004-05-30Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1629 joules per kilogram.LCLLFCEL10008507005003002001001 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, Lincoln, IL at 12:00Z on 2004-05-30The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 201 square meters per square second.193958Sfc1 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
1629 J/kg
Mixed-layer CIN
-53 J/kg
Mixed-layer LCL
569 m above ground
0-6 km bulk shear
46 kt
0-1 km storm-relative helicity
201 m²/s²
0-3 km storm-relative helicity
177 m²/s²
Significant tornado parameter
1.4
Supercell composite
8.9

Open this sounding in Storm Lab

The text

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

227 
WFUS53 KDVN 301945
TORDVN
IAC057-ILC071-302030-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
245 PM CDT SUN MAY 30 2004

THE NATIONAL WEATHER SERVICE IN THE QUAD CITIES HAS ISSUED A

* TORNADO WARNING FOR...
  SOUTH CENTRAL DES MOINES COUNTY IN SOUTHEAST IOWA
  SOUTHERN HENDERSON COUNTY IN WEST CENTRAL ILLINOIS

* UNTIL 330 PM CDT

* AT 241 PM CDT...THE PUBLIC REPORTED A TORNADO 14 MILES SOUTHWEST OF
  CARMAN...OR ABOUT OVER FORT MADISON...MOVING NORTHEAST AT 45 MPH.

* THE TORNADO IS EXPECTED TO BE NEAR...
  CARMAN AND 5 MILES NORTHWEST OF TERRE HAUTE BY 300 PM CDT
  6 MILES SOUTHEAST OF GULFPORT BY 305 PM CDT
  STRONGHURST AND 5 MILES SOUTHEAST OF GLADSTONE BY 310 PM CDT

THIS TORNADO IS CAPABLE OF PRODUCING SIGNIFICANT STRUCTURAL DAMAGE TO
BUILDINGS. MOVE TO A SUBSTANTIAL SHELTER NOW

A TORNADO WATCH REMAINS IN EFFECT UNTIL 700 PM CDT SUNDAY EVENING FOR
SOUTHEAST IOWA...WEST CENTRAL ILLINOIS AND NORTHEAST MISSOURI.

LAT...LON 4069 9112 4074 9122 4085 9105 4092 9092
          4078 9086 4072 9081 4064 9104 4064 9120

$$

DLF

The office that day

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

IssuedProductOfficeCountiesLasted
May 30, 7:27 AM CDTSevere Thunderstorm WarningDVNHancock, McDonough78 min
May 30, 7:33 AM CDTSevere Thunderstorm WarningDVNHenry57 min
May 30, 7:53 AM CDTFlash Flood WarningDVNBureau, Henry, Mercer, Rock Island, Whiteside6 hr
May 30, 8:58 AM CDTSevere Thunderstorm WarningDVNBureau62 min
May 30, 10:01 AM CDTFlash Flood WarningDVNPutnam4 hr
May 30, 2:18 PM CDTSevere Thunderstorm WarningDVNHancock42 min
May 30, 2:29 PM CDTTornado WarningDVNHancock46 min
May 30, 3:11 PM CDTTornado WarningDVNHancock, McDonough, Warren49 min
May 30, 3:57 PM CDTSevere Thunderstorm WarningDVNHenry48 min
May 30, 4:03 PM CDTTornado WarningDVNMcDonough, Warren27 min
May 30, 4:48 PM CDTSevere Thunderstorm WarningDVNBureau, Putnam57 min
May 30, 4:51 PM CDTFlash Flood WarningDVNBureau, Henry, Putnam54 min
May 30, 4:51 PM CDTFlash Flood WarningDVNBureau, Henry, Putnam3 hr
May 30, 4:54 PM CDTTornado WarningDVNBureau, Whiteside51 min
May 30, 5:02 PM CDTFlash Flood WarningDVNMcDonough3 hr
May 30, 5:22 AM CDTFlash Flood WarningDVNJefferson6 hr
May 30, 2:47 PM CDTFlash Flood WarningDVNLee5 hr
May 30, 3:09 PM CDTFlash Flood WarningDVNJefferson, Keokuk, Washington5 hr
May 30, 3:26 PM CDTTornado WarningDVNBenton, Buchanan, Linn64 min
May 30, 3:32 PM CDTSevere Thunderstorm WarningDVNJohnson, Washington58 min
May 30, 3:41 PM CDTTornado WarningDVNDubuque, Jones49 min
May 30, 3:52 PM CDTTornado WarningDVNIowa, Johnson53 min
May 30, 3:58 PM CDTTornado WarningDVNDelaware62 min
May 30, 4:03 PM CDTTornado WarningDVNCedar, Muscatine42 min
May 30, 4:12 PM CDTFlash Flood WarningDVNBuchanan, Delaware, Dubuque, Jones, Linn63 min
May 30, 4:18 PM CDTTornado WarningDVNDubuque57 min
May 30, 4:25 PM CDTFlash Flood WarningDVNBuchanan, Delaware, Dubuque, Jones, Linn4 hr
May 30, 4:44 PM CDTTornado WarningDVNCedar, Scott46 min
May 30, 5:22 PM CDTSevere Thunderstorm WarningDVNDelaware28 min

Nearby

Tornado Warnings in Illinois, 2004Tornado Warnings in Iowa, 2004Every tornado warning in 2004Tornadoes 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.