Alert archive / Iowa / Severe Thunderstorm Warnings in 2000

Severe Thunderstorm Warning 97, NWS Sioux Falls, SD

June 13, 2000Buena Vista County, Iowa

NWS Sioux Falls, SD issued this severe thunderstorm warning at Jun 13, 2000, 4:18 PM CDT for Buena Vista County, Iowa. It was in force for 27 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 13, 2000, 4:18 PM CDT (21:18 UTC)
Expired: Jun 13, 2000, 4:45 PM CDT
In force: 27 min
Issued by: NWS Sioux Falls, SD
Area: Whole counties

County Buena Vista County, IA

The radar

The Sioux Falls radar (KFSD), 159 km from the middle of the area, began a volume at 21:21 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 nearest sounding before it

Omaha, NE (KOAX), launched 12:00Z, 9.3 hours before the alert went out and 187 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: 997 J/kg
Mixed-layer CIN: -254 J/kg
Mixed-layer LCL: 1473 m above ground
0-6 km bulk shear: 29 kt
0-1 km storm-relative helicity: 108 m²/s²
0-3 km storm-relative helicity: 83 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.

842 
WUUS53 KFSD 132118
SVRFSD
IAC021-132145-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE SIOUX FALLS SD
418 PM CDT TUE JUN 13 2000

THE NATIONAL WEATHER SERVICE IN SIOUX FALLS HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  BUENA VISTA COUNTY IN NORTHWEST IOWA

* UNTIL 445 PM CDT

* AT 418 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  LINE OF SEVERE THUNDERSTORMS FROM LINN GROVE TO 5 MILES NORTHWEST
  OF NEWELL...OR FROM 16 MILES NORTH OF STORM LAKE TO 7 MILES EAST OF
  STORM LAKE...MOVING EAST AT 25 MPH.

* SEVERE THUNDERSTORMS WILL BE NEAR...
  SIOUX RAPIDS AROUND 425 PM CDT
  ALBERT CITY...MARATHON AROUND 435 PM 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.

Issued	Product	Office	Counties	Lasted
Jun 13, 2:02 PM CDT	Severe Thunderstorm Warning	FSD	Sioux	28 min
Jun 13, 2:32 PM CDT	Severe Thunderstorm Warning	FSD	Sioux	28 min
Jun 13, 2:35 PM CDT	Severe Thunderstorm Warning	FSD	Woodbury	25 min
Jun 13, 3:37 PM CDT	Severe Thunderstorm Warning	FSD	Clay	23 min
Jun 13, 3:40 PM CDT	Flash Flood Warning	FSD	Cherokee, O'Brien, Plymouth, Sioux, Woodbury	2 hr
Jun 13, 3:40 PM CDT	Severe Thunderstorm Warning	FSD	Cherokee, O'Brien	35 min
Jun 13, 4:01 PM CDT	Flash Flood Warning	FSD	Clay, Dickinson	119 min
Jun 13, 4:01 PM CDT	Severe Thunderstorm Warning	FSD	Clay	29 min
Jun 13, 4:19 PM CDT	Severe Thunderstorm Warning	FSD	Clay	26 min

Nearby

Severe Thunderstorm Warnings in Iowa, 2000 Every 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.