Alert archive / South Dakota / Tornado Warnings in 2010

Tornado Warning 21, NWS Aberdeen, SD

September 1, 2010Spink County, South Dakota

NWS Aberdeen, SD issued this tornado warning at Sep 1, 2010, 8:51 PM CDT for Spink County, South Dakota. It was in force for 39 min. 2 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
Sep 1, 2010, 8:51 PM CDT (01:51 UTC)
Expired
Sep 1, 2010, 9:30 PM CDT
In force
39 min
Issued by
NWS Aberdeen, SD
Area
Storm-based polygon

County Spink County, SD

The radar

The Aberdeen radar (KABR), 77 km from the middle of the area, began a volume at 01:53 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
Sep 1, 8:53 PM CDTTSTM WND DMG2 N Tulare, SDTELEPHONE POLES SNAPPED .
Sep 1, 8:59 PM CDTTORNADO4 W Tulare, SDBRIEF TOUCHDOWN.

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
Sep 1, 6:40 PM CDTSevere Thunderstorm WatchSPC8 hr

The nearest sounding before it

Aberdeen, SD (KABR), launched 00:00Z, 1.9 hours before the alert went out and 15 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 2010-09-02Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 107 joules per kilogram.LCLLFCEL10008507005003002001001 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 2010-09-02The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 125 square meters per square second.19395878Sfc1 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
107 J/kg
Mixed-layer CIN
-212 J/kg
Mixed-layer LCL
1559 m above ground
0-6 km bulk shear
43 kt
0-1 km storm-relative helicity
125 m²/s²
0-3 km storm-relative helicity
280 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.1

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

994 
WFUS53 KABR 020151
TORABR
SDC115-020230-
/O.NEW.KABR.TO.W.0021.100902T0151Z-100902T0230Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE ABERDEEN SD
851 PM CDT WED SEP 1 2010

THE NATIONAL WEATHER SERVICE IN ABERDEEN HAS ISSUED A

* TORNADO WARNING FOR...
  SOUTHWESTERN SPINK COUNTY IN NORTHEAST SOUTH DAKOTA...

* UNTIL 930 PM CDT

* AT 848 PM CDT...THE PUBLIC REPORTED A TORNADO NEAR TULARE...OR 10
  MILES SOUTHWEST OF REDFIELD. DOPPLER RADAR SHOWED THIS TORNADO
  MOVING EAST AT 25 MPH.

* THE TORNADO WILL BE NEAR...
  TULARE AROUND 905 PM CDT...
  SPINK COLONY AND GLENDALE COLONY AROUND 925 PM CDT...

THIS WARNING INCLUDES HIGHWAY 281 BETWEEN MILE MARKERS 141 AND 149.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TO REPEAT...A TORNADO IS ON THE GROUND. TAKE COVER NOW. MOVE TO AN
INTERIOR ROOM ON THE LOWEST FLOOR OF A STURDY BUILDING. AVOID
WINDOWS. IF IN A MOBILE HOME...A VEHICLE OR OUTDOORS...MOVE TO THE
CLOSEST SUBSTANTIAL SHELTER AND PROTECT YOURSELF FROM FLYING DEBRIS.

&&

LAT...LON 4481 9821 4466 9824 4471 9867 4483 9870
TIME...MOT...LOC 0151Z 274DEG 22KT 4476 9861

$$
SD
2 follow-up statements
958 
WWUS53 KABR 020208
SVSABR

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE ABERDEEN SD
908 PM CDT WED SEP 1 2010

SDC115-020230-
/O.CON.KABR.TO.W.0021.000000T0000Z-100902T0230Z/
SPINK SD-
908 PM CDT WED SEP 1 2010

...A TORNADO WARNING REMAINS IN EFFECT FOR SOUTH CENTRAL SPINK COUNTY
UNTIL 930 PM CDT...

AT 859 PM CDT...THE PUBLIC REPORTED A TORNADO.  THIS TORNADO WAS 
LOCATED 4 MILES WEST OF TULARE...OR 10 MILES SOUTH OF 
REDFIELD...MOVING EAST AT 25 MPH. THIS IS A DANGEROUS 
STORM...PRODUCING FREQUENT BRIEF TORNADOS. SEEK STURDY SHELTER 
IMMEDIATELY!

THE TORNADO WILL BE NEAR...
  SPINK COLONY AND GLENDALE COLONY AROUND 925 PM CDT...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TO REPEAT...A TORNADO IS ON THE GROUND. TAKE COVER NOW. MOVE TO AN
INTERIOR ROOM ON THE LOWEST FLOOR OF A STURDY BUILDING. AVOID
WINDOWS. IF IN A MOBILE HOME...A VEHICLE OR OUTDOORS...MOVE TO THE
CLOSEST SUBSTANTIAL SHELTER AND PROTECT YOURSELF FROM FLYING DEBRIS.

&&

LAT...LON 4478 9859 4481 9821 4466 9824 4470 9858
TIME...MOT...LOC 0206Z 274DEG 22KT 4473 9847

$$
SD
520 
WWUS53 KABR 020224
SVSABR

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE ABERDEEN SD
924 PM CDT WED SEP 1 2010

SDC115-020234-
/O.EXP.KABR.TO.W.0021.000000T0000Z-100902T0230Z/
SPINK SD-
924 PM CDT WED SEP 1 2010

...THE TORNADO WARNING FOR SOUTH CENTRAL SPINK COUNTY WILL EXPIRE AT 
930 PM CDT...

THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED BELOW SEVERE
LIMITS...AND NO LONGER POSES AN IMMEDIATE THREAT TO LIFE OR
PROPERTY...HOWEVER GUSTY WINDS ARE STILL POSSIBLE WITH THIS
THUNDERSTORM.

IN ADDITION...STRONG THUNDERSTORMS MAY REDEVELOP...AND A SEVERE 
THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 2 AM CDT.

LAT...LON 4478 9859 4481 9821 4466 9824 4470 9858
TIME...MOT...LOC 0224Z 274DEG 22KT 4472 9832

$$
SD

The office that day

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

IssuedProductOfficeCountiesLasted
Sep 1, 7:03 PM CDTSevere Thunderstorm WarningABRFaulk, Spink42 min
Sep 1, 8:24 PM CDTSevere Thunderstorm WarningABRSpink51 min
Sep 1, 8:39 PM CDTSevere Thunderstorm WarningABRHand, Spink47 min
Sep 1, 9:29 PM CDTSevere Thunderstorm WarningABRClark, Codington, Hamlin, Spink61 min
Sep 1, 9:44 PM CDTSevere Thunderstorm WarningABRClark, Spink32 min
Sep 1, 10:50 PM CDTSevere Thunderstorm WarningABRDeuel, Hamlin40 min
Sep 1, 11:25 PM CDTFlash Flood WarningABRHamlin6 hr
Sep 2, 2:01 AM CDTWind AdvisoryABRBrown, Buffalo, Campbell, Corson, Day, Dewey and 16 more17 hr
Sep 2, 2:42 AM CDTFlash Flood WarningABRDeuel6 hr

Nearby

Tornado Warnings in South Dakota, 2010Every tornado warning in 2010Tornadoes in 2010

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.