Alert archive / Iowa / Severe Thunderstorm Warnings in 2000

Severe Thunderstorm Warning 79, NWS Sioux Falls, SD

June 4, 2000Woodbury County, Iowa; Dakota County, Nebraska; Union County, South Dakota

NWS Sioux Falls, SD issued this severe thunderstorm warning at Jun 4, 2000, 2:29 AM CDT for Woodbury County, Iowa; Dakota County, Nebraska; Union County, South Dakota. It was in force for 31 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Jun 4, 2000, 2:29 AM CDT (07:29 UTC)
Expired
Jun 4, 2000, 3:00 AM CDT
In force
31 min
Issued by
NWS Sioux Falls, SD
Area
Whole counties

Counties Woodbury County, IA, Dakota County, NE, Union County, SD

The radar

The Sioux Falls radar (KFSD), 119 km from the middle of the area, began a volume at 07:32 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.

IssuedProductOfficeLasted
Jun 4, 12:15 AM CDTSevere Thunderstorm WatchSPC6 hr

The nearest sounding before it

Omaha, NE (KOAX), launched 00:00Z, 7.5 hours before the alert went out and 136 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-pSkew-T log-p diagram, Omaha, NE at 00:00Z on 2000-06-04Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Omaha, NE at 00:00Z on 2000-06-04The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 85 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
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
2210 m above ground
0-6 km bulk shear
40 kt
0-1 km storm-relative helicity
85 m²/s²
0-3 km storm-relative helicity
362 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.

763 
WUUS53 KFSD 040732 COR
SVRFSD
IAC193-NEC043-SDC127-040800-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE SIOUX FALLS SD
229 AM CDT SUN JUN 4 2000

THE NATIONAL WEATHER SERVICE IN SIOUX FALLS HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHERN DAKOTA COUNTY IN NORTHEAST NEBRASKA
  WESTERN WOODBURY COUNTY IN NORTHWEST IOWA
  SOUTHERN UNION COUNTY IN SOUTHEAST SOUTH DAKOTA

* UNTIL 300 AM CDT

* AT 229 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM PRODUCING DAMAGING WIND 5 MILES NORTHWEST OF   
  JACKSON...OR ABOUT 6 MILES SOUTHEAST OF PONCA...MOVING SOUTHEAST
  AT 45 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  JACKSON AND NORTH SIOUX CITY AROUND 235 AM CDT
  SIOUX CITY...SOUTH SIOUX CITY AROUND 240 AM CDT
  SERGEANT BLUFF...DAKOTA CITY AROUND 245 AM CDT
  SALIX AROUND 255 AM CDT

THIS STORM HAS A HISTORY OF PRODUCING DAMAGING WIND. GO INSIDE A
STURDY BUILDING AND STAY AWAY FROM WINDOWS.

REPORT SEVERE WEATHER TO THE NEAREST LAW ENFORCEMENT AGENCY. THEY
WILL RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE FORECAST
OFFICE IN SIOUX FALLS.

The office that day

Everything else NWS Sioux Falls, SD issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jun 3, 8:20 PM CDTSevere Thunderstorm WarningFSDPlymouth25 min
Jun 3, 8:44 PM CDTSevere Thunderstorm WarningFSDWoodbury31 min
Jun 3, 9:15 PM CDTSevere Thunderstorm WarningFSDWoodbury30 min
Jun 4, 2:02 AM CDTSevere Thunderstorm WarningFSDPlymouth28 min
Jun 3, 8:09 PM CDTTornado WarningFSDDixon36 min
Jun 4, 2:07 AM CDTSevere Thunderstorm WarningFSDDixon23 min
Jun 3, 7:11 PM CDTSevere Thunderstorm WarningFSDClay, Turner, Yankton34 min
Jun 3, 7:22 PM CDTSevere Thunderstorm WarningFSDBon Homme23 min
Jun 3, 7:36 PM CDTSevere Thunderstorm WarningFSDClay29 min
Jun 3, 7:50 PM CDTTornado WarningFSDClay25 min
Jun 3, 7:57 PM CDTSevere Thunderstorm WarningFSDUnion33 min
Jun 3, 8:13 PM CDTTornado WarningFSDClay32 min
Jun 3, 8:21 PM CDTTornado WarningFSDUnion24 min
Jun 3, 11:10 PM CDTSevere Thunderstorm WarningFSDJerauld35 min
Jun 3, 11:23 PM CDTSevere Thunderstorm WarningFSDAurora37 min
Jun 3, 11:59 PM CDTSevere Thunderstorm WarningFSDAurora, Davison31 min
Jun 4, 12:26 AM CDTSevere Thunderstorm WarningFSDDavison, Hutchinson34 min
Jun 4, 12:56 AM CDTSevere Thunderstorm WarningFSDBon Homme, Yankton34 min
Jun 4, 12:59 AM CDTSevere Thunderstorm WarningFSDClay, Lincoln, Union31 min
Jun 4, 1:27 AM CDTTornado WarningFSDYankton18 min
Jun 4, 1:40 AM CDTSevere Thunderstorm WarningFSDClay35 min

Nearby

Severe Thunderstorm Warnings in Iowa, 2000Severe Thunderstorm Warnings in Nebraska, 2000Severe Thunderstorm Warnings in South Dakota, 2000Every severe thunderstorm warning 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.