Alert archive / Iowa / Tornado Warnings in 2001

Tornado Warning 31, NWS Quad Cities, IA

June 1, 2001Jackson County, Iowa

NWS Quad Cities, IA issued this tornado warning at Jun 1, 2001, 6:24 PM CDT for Jackson County, Iowa. It was in force for 51 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline the Iowa Environmental Mesonet reconstructed for it; the warning itself named whole counties.

The facts

Issued: Jun 1, 2001, 6:24 PM CDT (23:24 UTC)
Expired: Jun 1, 2001, 7:15 PM CDT
In force: 51 min
Issued by: NWS Quad Cities, IA
Area: Whole counties; the outline is the Mesonet’s reconstruction

County Jackson County, IA

The radar

The Quad Cities radar (KDVN), 70 km from the middle of the area, began a volume at 23:24 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
Jun 1, 5:30 PM CDT	Tornado Watch	SPC	4 hr

The nearest sounding before it

Davenport, (KDVN), launched 12:00Z, 11.4 hours before the alert went out and 70 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: 536 m above ground
0-6 km bulk shear: 9 kt
0-1 km storm-relative helicity: -54 m²/s²
0-3 km storm-relative helicity: -77 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 
WFUS53 KDVN 012326
TORMLI

IAC061-097-105-020015-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
624 PM CDT FRI JUN 1 2001

THE NATIONAL WEATHER SERVICE IN THE QUAD CITIES HAS ISSUED A

* TORNADO WARNING FOR...
  JACKSON COUNTY IN EAST CENTRAL IOWA
 
* UNTIL 715 PM CDT

* AT 619 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM WITH A TORNADO 4 MILES NORTH OF CANTON...OR 16
  MILES NORTHWEST OF MAQUOKETA...MOVING EAST AT 40 MPH.

* THE TORNADO IS EXPECTED TO BE NEAR...
   SOUTH GARY OWEN BY 625 PM CDT.
   IRONHILLS BY 630 PM CDT.
   OTTER CREEK BY 635 PM CDT.
   ANDREW BY 640 PM CDT.

THE SAFEST PLACE TO BE DURING A TORNADO IS IN A BASEMENT. SEEK
SHELTER ON THE LOWEST FLOOR OF THE BUILDING IN AN INTERIOR HALLWAY OR
ROOM SUCH AS A CLOSET. USE BLANKETS OR PILLOWS TO COVER YOUR BODY AND
ALWAYS STAY AWAY FROM WINDOWS.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 700 PM CDT FRIDAY EVENING 
FOR NORTHEASTERN IOWA.

LAT...LON 4233 9095 4216 9100 4207 9021 4226 9045

REA

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 1, 4:14 PM CDT	Severe Thunderstorm Warning	DVN	Buchanan	61 min
Jun 1, 4:35 PM CDT	Tornado Warning	DVN	Buchanan	40 min
Jun 1, 5:11 PM CDT	Tornado Warning	DVN	Delaware	64 min
Jun 1, 5:14 PM CDT	Tornado Warning	DVN	Buchanan	46 min
Jun 1, 5:51 PM CDT	Tornado Warning	DVN	Dubuque, Jones	24 min
Jun 1, 6:13 PM CDT	Tornado Warning	DVN	Dubuque, Jones	47 min

Nearby

Tornado Warnings in Iowa, 2001 Every tornado warning in 2001 Tornadoes in 2001

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.