Alert archive / Iowa / Tornado Warnings in 2003

Tornado Warning 22, NWS Quad Cities, IA

May 10, 2003Van Buren County, Iowa

NWS Quad Cities, IA issued this tornado warning at May 10, 2003, 6:51 PM CDT for Van Buren County, Iowa. It was in force for 39 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 10, 2003, 6:51 PM CDT (23:51 UTC)
Expired: May 10, 2003, 7:30 PM CDT
In force: 39 min
Issued by: NWS Quad Cities, IA
Area: Counties, with a storm outline in the text

County Van Buren County, IA

The radar

The Quad Cities radar (KDVN), 165 km from the middle of the area, began a volume at 23:52 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.

Issued	Product	Office	Lasted
May 10, 3:50 PM CDT	Tornado Watch	SPC	6 hr

The nearest sounding before it

Davenport, (KDVN), launched 12:00Z, 11.9 hours before the alert went out and 171 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 1102 m above ground
0-6 km bulk shear: 51 kt
0-1 km storm-relative helicity: 139 m²/s²
0-3 km storm-relative helicity: 225 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.5

Open this sounding in Storm Lab

The text

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

543 
WFUS53 KDVN 102351
TORDVN
IAC177-110030-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
651 PM CDT SAT MAY 10 2003

THE NATIONAL WEATHER SERVICE IN THE QUAD CITIES HAS ISSUED A

* TORNADO WARNING FOR...
  CENTRAL VAN BUREN COUNTY IN SOUTHEAST IOWA

* UNTIL 730 PM CDT

* AT 647 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM WITH A LIKELY TORNADO 9 MILES NORTHWEST OF
  MILTON...OR 6 MILES EAST OF BLOOMFIELD...MOVING EAST AT 30 MPH.

* THE TORNADO IS EXPECTED TO BE NEAR...
   LEBANON BY 710 PM CDT.
   DOUDS/LEANDO BY 715 PM CDT.
   AUSTIN PARK BY 720 PM CDT.
   KILBOURN BY 725 PM CDT.

THE SAFEST PLACE TO BE DURING A TORNADO IS IN A BASEMENT OR ON THE
LOWEST FLOOR OF A BUILDING IN AN INTERIOR HALLWAY OR ROOM.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 1000 PM CDT SATURDAY EVENING
FOR EASTERN IOWA AND NORTHWESTERN ILLINOIS AND NORTHEAST MISSOURI. A
TORNADO WATCH ALSO REMAINS IN EFFECT UNTIL 1100 PM CDT SATURDAY
EVENING FOR WEST CENTRAL ILLINOIS AND NORTHEAST MISSOURI. A TORNADO
WATCH ALSO REMAINS IN EFFECT UNTIL 700 PM CDT SATURDAY EVENING FOR
NORTHEAST MISSOURI.

LAT...LON 4081 9244 4064 9236 4069 9183 4088 9190

$$

NICHOLS

The office that day

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

Issued	Product	Office	Counties	Lasted
May 9, 11:05 PM CDT	Severe Thunderstorm Warning	DVN	Lee	40 min
May 10, 4:57 PM CDT	Severe Thunderstorm Warning	DVN	Benton	48 min
May 10, 5:34 PM CDT	Tornado Warning	DVN	Benton, Buchanan	26 min
May 10, 5:35 PM CDT	Severe Thunderstorm Warning	DVN	Iowa, Keokuk, Washington	10 min
May 10, 5:48 PM CDT	Severe Thunderstorm Warning	DVN	Iowa, Johnson, Keokuk	42 min
May 10, 5:57 PM CDT	Severe Thunderstorm Warning	DVN	Delaware, Linn	48 min
May 10, 6:13 PM CDT	Severe Thunderstorm Warning	DVN	Buchanan	47 min
May 10, 6:30 PM CDT	Tornado Warning	DVN	Jefferson	30 min
May 10, 6:33 PM CDT	Tornado Warning	DVN	Lee	27 min
May 10, 6:44 PM CDT	Severe Thunderstorm Warning	DVN	Delaware, Linn	46 min

Nearby

Tornado Warnings in Iowa, 2003 Every tornado warning in 2003 Tornadoes in 2003

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.