Alert archive / Iowa / Tornado Warnings in 2000

Tornado Warning 19, NWS Des Moines, IA

June 23, 2000Wayne County, Iowa

NWS Des Moines, IA issued this tornado warning at Jun 23, 2000, 2:19 PM CDT for Wayne County, Iowa. It was in force for 26 min. 2 reports came from 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, with what was reported inside it.

The facts

Issued: Jun 23, 2000, 2:19 PM CDT (19:19 UTC)
Expired: Jun 23, 2000, 2:45 PM CDT
In force: 26 min
Issued by: NWS Des Moines, IA
Area: Whole counties; the outline is the Mesonet’s reconstruction

County Wayne County, IA

The radar

The Des Moines radar (KDMX), 110 km from the middle of the area, began a volume at 19:18 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.

What was reported inside it

Time	Report	Where	Remark
Jun 23, 2:30 PM CDT	Thunderstorm Wind 61 E	Corydon, IA
Jun 23, 2:40 PM CDT	Thunderstorm Wind 61 E	Promise City, IA

NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.

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 23, 11:30 AM CDT	Severe Thunderstorm Watch	SPC	6 hr

The nearest sounding before it

Omaha, NE (KOAX), launched 12:00Z, 7.3 hours before the alert went out and 258 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: 2896 m above ground
0-6 km bulk shear: 35 kt
0-1 km storm-relative helicity: 210 m²/s²
0-3 km storm-relative helicity: 170 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.

034 
WFUS53 KDMX 231919
TORDSM
IAC185-231945-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE DES MOINES IA
219 PM CDT FRI JUN 23 2000

THE NATIONAL WEATHER SERVICE IN DES MOINES HAS ISSUED A

* TORNADO WARNING FOR...
  WAYNE COUNTY IN SOUTH CENTRAL IOWA

* UNTIL 245 PM

* AT 215 PM...LAW ENFORCEMENT REPORTED A TORNADO OVER CORYDON...OR
  ABOUT 49 MILES WEST OF OTTUMWA...MOVING EAST AT 30 MPH.

* THE TORNADO WILL BE...
  NEAR PROMISE CITY AROUND 230 PM

THIS WARNING REPLACES THE SEVERE THUNDERSTORM WARNING PREVIOUSLY
ISSUED FOR THE WARNED AREA.

THE SAFEST PLACE TO BE DURING A TORNADO IS IN A BASEMENT. GET UNDER A
WORKBENCH OR OTHER PIECE OF STURDY FURNITURE.

LAT...LON 4089 9355 4059 9356 4060 9311 4090 9312

SMALL
NNNN

The office that day

Everything else NWS Des Moines, IA issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jun 23, 11:03 AM CDT	Severe Thunderstorm Warning	DMX	Madison, Warren	37 min
Jun 23, 11:25 AM CDT	Severe Thunderstorm Warning	DMX	Polk	35 min
Jun 23, 12:54 PM CDT	Severe Thunderstorm Warning	DMX	Mahaska, Monroe	36 min
Jun 23, 1:41 PM CDT	Severe Thunderstorm Warning	DMX	Decatur, Wayne	34 min
Jun 23, 2:17 PM CDT	Severe Thunderstorm Warning	DMX	Appanoose, Wayne	43 min
Jun 23, 3:16 PM CDT	Flash Flood Warning	DMX	Wapello	119 min
Jun 23, 5:16 PM CDT	Flash Flood Warning	DMX	Wapello	119 min
Jun 23, 5:53 PM CDT	Flash Flood Warning	DMX	Monroe	2 hr
Jun 23, 6:25 PM CDT	Flash Flood Warning	DMX	Wapello	3 hr
Jun 23, 6:45 PM CDT	Severe Thunderstorm Warning	DMX	Adair, Cass	30 min

Nearby

Tornado Warnings in Iowa, 2000 Every tornado warning in 2000 Tornadoes in 2000

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.