Alert archive / South Dakota / Tornado Warnings in 2008

Tornado Warning 4, NWS Sioux Falls, SD

May 1, 2008Turner County, South Dakota

NWS Sioux Falls, SD issued this tornado warning at May 1, 2008, 6:36 PM CDT for Turner County, South Dakota. It was in force for 24 min. 3 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
May 1, 2008, 6:36 PM CDT (23:36 UTC)
Expired
May 1, 2008, 7:00 PM CDT
In force
24 min
Issued by
NWS Sioux Falls, SD
Area
Storm-based polygon

County Turner County, SD

The radar

The Sioux Falls radar (KFSD), 52 km from the middle of the area, began a volume at 23:38 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
May 1, 6:39 PM CDTHAIL 4.2512 S Marion, SDAT TURKEY RIDGE
May 1, 6:44 PM CDTHAIL 114 Sse Marion, SD2.5 MILES SOUTHEAST OF TURKEY RIDGE
May 1, 6:45 PM CDTHAIL 1.759 Sw Parker, SD

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
May 1, 4:34 PM CDTTornado WatchSPC5 hr

The nearest sounding before it

Aberdeen, SD (KABR), launched 12:00Z, 11.6 hours before the alert went out and 198 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 2008-05-01Temperature 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°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Aberdeen, SD at 12:00Z on 2008-05-01The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 80 square meters per square second.1939Sfc1 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
894 m above ground
0-6 km bulk shear
30 kt
0-1 km storm-relative helicity
80 m²/s²
0-3 km storm-relative helicity
248 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 KFSD 012336
TORFSD
SDC125-020000-
/O.NEW.KFSD.TO.W.0004.080501T2336Z-080502T0000Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE SIOUX FALLS SD
636 PM CDT THU MAY 1 2008

THE NATIONAL WEATHER SERVICE IN SIOUX FALLS HAS ISSUED A

* TORNADO WARNING FOR...
  CENTRAL TURNER COUNTY IN SOUTHEAST SOUTH DAKOTA

* UNTIL 700 PM CDT

* AT 636 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO 14 MILES SOUTH
  OF PARKER...MOVING NORTH AT 24 MPH.

* THE TORNADO WILL BE NEAR...
   PARKER AROUND 700 PM CDT...

A TRAINED WEATHER SPOTTER REPORTED A FUNNEL CLOUD 5 MILES WEST OF 
VIBORG AT 633 PM CDT. 

THIS IS AN EXTREMELY DANGEROUS AND LIFE THREATENING SITUATION. TAKE
COVER NOW.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 1100 PM CDT THURSDAY EVENING
FOR NORTHWEST IOWA AND SOUTHWEST MINNESOTA AND SOUTHEASTERN SOUTH
DAKOTA.

LAT...LON 4340 9738 4344 9708 4319 9712 4319 9732
TIME...MOT...LOC 2336Z 167DEG 21KT 4321 9725

$$

LIEBL
2 follow-up statements
000 
WWUS53 KFSD 012344
SVSFSD

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE SIOUX FALLS SD
643 PM CDT THU MAY 1 2008

SDC125-020000-
/O.CON.KFSD.TO.W.0004.000000T0000Z-080502T0000Z/
TURNER SD-
643 PM CDT THU MAY 1 2008

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 700 PM CDT FOR CENTRAL
TURNER COUNTY...

AT 643 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A TORNADO.  THIS TORNADO WAS LOCATED 14 MILES SOUTH OF 
PARKER...MOVING NORTH AT 17 MPH. 

AT 639 PM CDT...HAIL UP TO SIZE OF SOFTBALLS HAS BEEN REPORTED IN 
TURKEY RIDGE WITH THIS STORM. IF YOU ARE IN THE PATH OF THE 
STORM...TAKE IMMEDIATE ACTION TO PROTECT LIFE AND PROPERTY.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 1100 PM CDT THURSDAY EVENING
FOR NORTHWEST IOWA AND SOUTHWEST MINNESOTA AND SOUTHEASTERN SOUTH
DAKOTA.

LAT...LON 4340 9738 4344 9708 4319 9712 4319 9732
TIME...MOT...LOC 2343Z 158DEG 15KT 4322 9724

$$

LIEBL
000 
WWUS53 KFSD 012349
SVSFSD

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE SIOUX FALLS SD
647 PM CDT THU MAY 1 2008

SDC125-020000-
/O.CON.KFSD.TO.W.0004.000000T0000Z-080502T0000Z/
TURNER SD-
647 PM CDT THU MAY 1 2008

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 700 PM CDT FOR CENTRAL
TURNER COUNTY...

AT 647 PM CDT...TRAINED WEATHER SPOTTERS REPORTED A FUNNEL CLOUD 2 
MILES SOUTHEAST OF TURKEY RIDGE. THIS TORNADO WAS LOCATED 13 MILES 
SOUTH OF PARKER...MOVING NORTH AT 12 MPH.

THE TORNADO WILL BE NEAR...
  RURAL TURNER COUNTY THROUGH 700 PM CDT

HAIL UP TO THE SIZE OF QUARTER HAS BEEN REPORTED 2 MILES SOUTHEAST 
OF TURKEY RIDGE WITH THIS STORM. IF YOU ARE IN THE PATH OF THE 
STORM...TAKE IMMEDIATE ACTION TO PROTECT LIFE AND PROPERTY.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 1100 PM CDT THURSDAY EVENING
FOR NORTHWEST IOWA AND SOUTHWEST MINNESOTA AND SOUTHEASTERN SOUTH
DAKOTA.

LAT...LON 4340 9738 4344 9708 4319 9712 4319 9732
TIME...MOT...LOC 2347Z 162DEG 10KT 4323 9724

$$

LIEBL

The office that day

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

IssuedProductOfficeCountiesLasted
May 1, 4:47 PM CDTSevere Thunderstorm WarningFSDBon Homme43 min
May 1, 5:16 PM CDTSevere Thunderstorm WarningFSDBon Homme, Hutchinson, Yankton29 min
May 1, 5:21 PM CDTSevere Thunderstorm WarningFSDYankton39 min
May 1, 5:47 PM CDTSevere Thunderstorm WarningFSDHutchinson43 min
May 1, 5:48 PM CDTSevere Thunderstorm WarningFSDAurora, Davison, Douglas42 min
May 1, 5:57 PM CDTSevere Thunderstorm WarningFSDYankton33 min
May 1, 6:13 PM CDTSevere Thunderstorm WarningFSDHutchinson, Turner47 min
May 1, 6:18 PM CDTSevere Thunderstorm WarningFSDDavison, Hanson, Hutchinson42 min
May 1, 6:26 PM CDTSevere Thunderstorm WarningFSDDavison34 min
May 1, 6:52 PM CDTSevere Thunderstorm WarningFSDMinnehaha38 min
May 1, 6:54 PM CDTTornado WarningFSDLincoln, Minnehaha36 min

Nearby

Tornado Warnings in South Dakota, 2008Every tornado warning in 2008Tornadoes in 2008

Sources

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