Alert archive / South Dakota / Tornado Warnings in 2008

Tornado Warning 6, NWS Sioux Falls, SD

May 1, 2008Turner County, South Dakota

NWS Sioux Falls, SD issued this tornado warning at May 1, 2008, 7:08 PM CDT for Turner County, South Dakota. It was in force for 29 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
May 1, 2008, 7:08 PM CDT (00:08 UTC)
Expired
May 1, 2008, 7:37 PM CDT
In force
29 min
Issued by
NWS Sioux Falls, SD
Area
Storm-based polygon

County Turner County, SD

The radar

The Sioux Falls radar (KFSD), 43 km from the middle of the area, began a volume at 00:08 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
May 1, 4:34 PM CDTTornado WatchSPC5 hr

The nearest sounding before it

Aberdeen, SD (KABR), launched 00:00Z, 0.1 hours before the alert went out and 190 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 00:00Z on 2008-05-02Temperature 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 00:00Z on 2008-05-02The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 270 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
1220 m above ground
0-6 km bulk shear
38 kt
0-1 km storm-relative helicity
270 m²/s²
0-3 km storm-relative helicity
338 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 020008
TORFSD
SDC125-020045-
/O.NEW.KFSD.TO.W.0006.080502T0008Z-080502T0045Z/

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

THE NATIONAL WEATHER SERVICE IN SIOUX FALLS HAS ISSUED A

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

* UNTIL 745 PM CDT

* AT 708 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO 5 MILES
  SOUTHWEST OF PARKER...OR NEAR PARKER...MOVING NORTHWEST AT 16 MPH.

* THE TORNADO WILL BE NEAR...
   MARION AROUND 730 PM CDT...
   MONROE AROUND 735 PM CDT...

AT 703 PM CDT...STRONG ROTATION WAS REPORTED A HALF MILE NORTH OF 
HURLEY.

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 4350 9734 4349 9702 4331 9707 4331 9726
TIME...MOT...LOC 0008Z 125DEG 13KT 4335 9719

$$

LIEBL
1 follow-up statement
000 
WWUS53 KFSD 020037
SVSFSD

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

SDC125-020047-
/O.CAN.KFSD.TO.W.0006.000000T0000Z-080502T0045Z/
TURNER SD-
737 PM CDT THU MAY 1 2008

...THE TORNADO WARNING FOR NORTH CENTRAL TURNER COUNTY IS
CANCELLED...

THE STORM HAS EXITED THE WARNED AREA. 

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

LAT...LON 4350 9734 4349 9702 4331 9707 4331 9726
TIME...MOT...LOC 0037Z 125DEG 13KT 4341 9731

$$

LIEBL

The office that day

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

IssuedProductOfficeCountiesLasted
May 1, 7:16 PM CDTSevere Thunderstorm WarningFSDMcCook, Minnehaha, Turner44 min
May 1, 7:22 PM CDTTornado WarningFSDLincoln, Minnehaha23 min
May 1, 7:25 PM CDTTornado WarningFSDMcCook, Minnehaha, Turner35 min
May 1, 7:27 PM CDTSevere Thunderstorm WarningFSDMinnehaha33 min
May 1, 7:45 PM CDTTornado WarningFSDMinnehaha30 min
May 1, 7:53 PM CDTSevere Thunderstorm WarningFSDMinnehaha, Moody24 min
May 1, 7:59 PM CDTTornado WarningFSDMinnehaha14 min
May 1, 8:24 PM CDTSevere Thunderstorm WarningFSDBeadle, Sanborn36 min
May 1, 8:55 PM CDTSevere Thunderstorm WarningFSDBeadle, Jerauld21 min
May 2, 2:48 PM CDTRiver Flood WarningFSDUnion18 hr
May 2, 2:48 PM CDTRiver Flood WarningFSDLincoln, Union18 hr
May 2, 3:49 PM CDTWind AdvisoryFSDAurora, Beadle, Bon Homme, Brookings, Brule, Charles Mix and 18 more12 hr

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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.