Alert archive / South Dakota / Severe Thunderstorm Warnings in 2002

Severe Thunderstorm Warning 10, NWS Sioux Falls, SD

April 16, 2002Minnehaha County, Moody County, South Dakota

NWS Sioux Falls, SD issued this severe thunderstorm warning at Apr 16, 2002, 5:45 PM CDT for Minnehaha County, Moody County, South Dakota. It was in force for 45 min. 13 reports came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued
Apr 16, 2002, 5:45 PM CDT (22:45 UTC)
Expired
Apr 16, 2002, 6:30 PM CDT
In force
45 min
Issued by
NWS Sioux Falls, SD
Area
Counties, with a storm outline in the text

Counties Minnehaha County, SD, Moody County, SD

The radar

The Sioux Falls radar (KFSD), 34 km from the middle of the area, began a volume at 22:47 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

TimeReportWhereRemark
Apr 16, 5:47 PM CDTHail 0.75(Fsd)Joe Foss Fld Si, SD
Apr 16, 5:53 PM CDTHail 0.75Crooks, SD
Apr 16, 5:54 PM CDTHail 0.75Crooks, SD
Apr 16, 5:56 PM CDTHail 0.88Crooks, SD
Apr 16, 6:04 PM CDTHail 0.75Flandreau, SD
Apr 16, 6:07 PM CDTHail 0.88Hartford, SD
Apr 16, 6:09 PM CDTHail 1Hartford, SD
Apr 16, 6:11 PM CDTHail 1Hartford, SD
Apr 16, 6:12 PM CDTHail 0.75Dell Rapids, SD
Apr 16, 6:26 PM CDTHail 0.75Baltic, SD
Apr 16, 6:28 PM CDTHail 0.75Dell Rapids, SD
Apr 16, 6:28 PM CDTHail 0.75Baltic, SD
Apr 16, 6:34 PM CDTHail 0.75Dell Rapids, SD

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.

IssuedProductOfficeLasted
Apr 16, 5:45 PM CDTSevere Thunderstorm WatchSPC6 hr

The nearest sounding before it

Aberdeen, SD (KABR), launched 12:00Z, 10.8 hours before the alert went out and 168 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, Aberdeen, SD at 12:00Z on 2002-04-16Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1618 joules per kilogram.LCLLFCEL10008507005003002001001 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, Aberdeen, SD at 12:00Z on 2002-04-16The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 440 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
1618 J/kg
Mixed-layer CIN
-461 J/kg
Mixed-layer LCL
817 m above ground
0-6 km bulk shear
36 kt
0-1 km storm-relative helicity
440 m²/s²
0-3 km storm-relative helicity
427 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 
WUUS53 KFSD 162245
SVRFSD
SDC099-101-162330-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE SIOUX FALLS SD
544 PM CDT TUE APR 16 2002

THE NATIONAL WEATHER SERVICE IN SIOUX FALLS HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  MOODY COUNTY IN EAST CENTRAL SOUTH DAKOTA
  MINNEHAHA COUNTY IN SOUTHEAST SOUTH DAKOTA

* UNTIL 630 PM CDT

* AT 544 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  LINE OF SEVERE THUNDERSTORMS FROM 5 MILES NORTHWEST OF COLMAN TO 6
  MILES SOUTH OF HARTFORD...OR FROM 12 MILES EAST OF MADISON TO 6
  MILES SOUTH OF HARTFORD...MOVING NORTHEAST AT 40 MPH.

* SEVERE THUNDERSTORMS WILL BE NEAR...
  CROOKS...COLMAN AROUND 555 PM CDT
  BALTIC AROUND 605 PM CDT
  DELL RAPIDS AROUND 615 PM CDT
  TRENT AROUND 620 PM CDT
  WESTERN AREAS OF SIOUX FALLS AROUND 625 PM
  EGAN AROUND 630 PM CDT

AT 539 PM...THE PUBLIC REPORTED NICKEL SIZE HAIL IN HARTFORD.

THIS STORM WILL PRODUCE DAMAGING WIND AND HAIL. GO INSIDE A STURDY 
BUILDING AND STAY AWAY FROM WINDOWS.



LAT...LON 4407 9690 4385 9690 4350 9701 4361 9675
          4421 9659

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 16, 5:23 PM CDTSevere Thunderstorm WarningFSDLake, Minnehaha, Moody, Turner22 min
Apr 16, 5:46 PM CDTSevere Thunderstorm WarningFSDTurner29 min
Apr 16, 5:52 PM CDTSevere Thunderstorm WarningFSDLake23 min
Apr 16, 5:54 PM CDTSevere Thunderstorm WarningFSDClay, Union36 min
Apr 16, 5:56 PM CDTSevere Thunderstorm WarningFSDBrookings34 min
Apr 16, 6:27 PM CDTSevere Thunderstorm WarningFSDMinnehaha, Moody33 min
Apr 16, 6:28 PM CDTSevere Thunderstorm WarningFSDUnion47 min
Apr 16, 6:41 PM CDTSevere Thunderstorm WarningFSDBrookings34 min

Nearby

Severe Thunderstorm Warnings in South Dakota, 2002Every severe thunderstorm warning in 2002

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.