Alert archive / Iowa / Tornado Warnings in 2001

Tornado Warning 19, NWS Quad Cities, IA

May 10, 2001Clinton County, Jackson County, Iowa

NWS Quad Cities, IA issued this tornado warning at May 10, 2001, 8:02 PM CDT for Clinton County, Jackson County, Iowa. It was in force for 58 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: May 10, 2001, 8:02 PM CDT (01:02 UTC)
Expired: May 10, 2001, 9:00 PM CDT
In force: 58 min
Issued by: NWS Quad Cities, IA
Area: Whole counties; the outline is the Mesonet’s reconstruction

Counties Clinton County, IA, Jackson County, IA

The radar

The Quad Cities radar (KDVN), 56 km from the middle of the area, began a volume at 01:01 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 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, 4:15 PM CDT	Severe Thunderstorm Watch	SPC	6 hr

The nearest sounding before it

Davenport, (KDVN), launched 00:00Z, 1.0 hours before the alert went out and 55 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: 794 J/kg
Mixed-layer CIN: -45 J/kg
Mixed-layer LCL: 1445 m above ground
0-6 km bulk shear: 33 kt
0-1 km storm-relative helicity: 58 m²/s²
0-3 km storm-relative helicity: 142 m²/s²
Significant tornado parameter: 0.1
Supercell composite: 2.4

Open this sounding in Storm Lab

The text

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

000 
WFUS53 KDVN 110105
TORMLI

IAC045-097-110200-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
802 PM CDT THU MAY 10 2001

THE NATIONAL WEATHER SERVICE IN QUAD CITIES HAS ISSUED A

* TORNADO WARNING FOR...
  CLINTON COUNTY IN EAST CENTRAL IOWA
  JACKSON COUNTY IN EAST CENTRAL IOWA

* UNTIL 900 PM CDT

* AT 756 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A 
SEVERE THUNDERSTORM WITH POSSIBLE TORNADO 14 MILES WEST OF 
MONMOUTH...OR 9 MILES SOUTHEAST OF ANAMOSA...MOVING EAST AT 35 MPH. 
STRONG WINDS...LARGE HAIL...AND TORNADOES ARE POSSIBLE WITH THIS 
STORM.

* THIS STORM IS EXPECTED TO BE NEAR...
   MONMOUTH BY 815 PM CDT.
   BALDWIN BY 820 PM CDT.
   MAQUOKETA BY 835 PM CDT.
   ANDREW BY 840 PM CDT.

ADDITIONAL STORMS WERE DEVELOPING RAPIDLY IN SOUTHERN JONES COUNTY 
AS WELL. THESE STORMS WILL AFFECT WESTERN CLINTON COUNTY.

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.

REPORT ANY SEVERE WEATHER TO THE NEAREST LAW ENFORCEMENT AGENCY. THEY
WILL RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE.

LAT...LON 4229 9088 4179 9090 4179 9061 4176 9033
          4193 9018 4205 9016 4214 9024 4225 9043
          4241 9051 4239 9065 4228 9065

JAZ

The office that day

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

Issued	Product	Office	Counties	Lasted
May 10, 7:11 PM CDT	Tornado Warning	DVN	Jones	64 min
May 10, 7:15 PM CDT	Severe Thunderstorm Warning	DVN	Iowa	60 min
May 10, 7:28 PM CDT	Tornado Warning	DVN	Johnson, Linn	62 min
May 10, 7:48 PM CDT	Tornado Warning	DVN	Cedar	42 min
May 10, 8:11 PM CDT	Tornado Warning	DVN	Jones	34 min
May 10, 8:27 PM CDT	Tornado Warning	DVN	Muscatine	63 min
May 10, 8:28 PM CDT	Tornado Warning	DVN	Cedar	62 min
May 10, 8:33 PM CDT	Severe Thunderstorm Warning	DVN	Johnson	27 min
May 10, 8:39 PM CDT	Tornado Warning	DVN	Scott	66 min
May 10, 8:40 PM CDT	Severe Thunderstorm Warning	DVN	Keokuk	50 min
May 10, 8:58 PM CDT	Tornado Warning	DVN	Clinton	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.