Alert archive / Iowa / Tornado Warnings in 2001

Tornado Warning 13, NWS Quad Cities, IA

May 10, 2001Iowa County, Iowa

NWS Quad Cities, IA issued this tornado warning at May 10, 2001, 6:28 PM CDT for Iowa County, Iowa. It was in force for 47 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, 6:28 PM CDT (23:28 UTC)
Expired: May 10, 2001, 7:15 PM CDT
In force: 47 min
Issued by: NWS Quad Cities, IA
Area: Whole counties; the outline is the Mesonet’s reconstruction

County Iowa County, IA

The radar

The Quad Cities radar (KDVN), 128 km from the middle of the area, began a volume at 23:29 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 12:00Z, 11.5 hours before the alert went out and 135 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: 2104 m above ground
0-6 km bulk shear: 10 kt
0-1 km storm-relative helicity: 15 m²/s²
0-3 km storm-relative helicity: 102 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 102328
TORMLI
IAC095-110015-

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

THE NATIONAL WEATHER SERVICE IN QUAD CITIES HAS ISSUED A

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

* UNTIL 715 PM CDT

* AT 623 PM CDT...TRAINED SPOTTERS REPORTED A FUNNEL CLOUD 2 MILES
  EAST OF MARENGO...MOVING EAST AT 35 MPH.

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.

THIS STORM MAY ALSO PRODUCE LARGE HAIL.

LAT...LON 4186 9229 4152 9228 4155 9186 4185 9186

JAZ

The office that day

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

Issued	Product	Office	Counties	Lasted
May 10, 3:59 PM CDT	Severe Thunderstorm Warning	DVN	Benton, Iowa	46 min
May 10, 4:43 PM CDT	Severe Thunderstorm Warning	DVN	Buchanan	47 min
May 10, 5:27 PM CDT	Severe Thunderstorm Warning	DVN	Buchanan, Delaware	48 min
May 10, 5:44 PM CDT	Severe Thunderstorm Warning	DVN	Benton, Iowa	61 min
May 10, 6:01 PM CDT	Tornado Warning	DVN	Benton	44 min
May 10, 6:05 PM CDT	Tornado Warning	DVN	Delaware	40 min
May 10, 6:33 PM CDT	Tornado Warning	DVN	Johnson, Linn	57 min
May 10, 6:42 PM CDT	Tornado Warning	DVN	Benton	63 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.