Alert archive / South Dakota / Tornado Warnings in 2009

Tornado Warning 34, NWS Sioux Falls, SD

June 24, 20094 counties in South Dakota

NWS Sioux Falls, SD issued this tornado warning at Jun 24, 2009, 9:56 PM CDT for 4 counties in South Dakota. It was in force for 49 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
Jun 24, 2009, 9:56 PM CDT (02:56 UTC)
Expired
Jun 24, 2009, 10:45 PM CDT
In force
49 min
Issued by
NWS Sioux Falls, SD
Area
Storm-based polygon

Counties Hanson County, SD, Hutchinson County, SD, McCook County, SD, Turner County, SD

The radar

The Sioux Falls radar (KFSD), 62 km from the middle of the area, began a volume at 02:59 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
Jun 24, 10:15 PM CDTTSTM WND GST 603 Ne Emery, SDNUMEROUS BRANCHES DOWN, LASTED 15 MINUTES
Jun 24, 10:26 PM CDTTORNADO1 N Bridgewater, SD
Jun 24, 10:33 PM CDTHAIL 21 N Dolton, SD

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

The nearest sounding before it

Aberdeen, SD (KABR), launched 00:00Z, 2.9 hours before the alert went out and 157 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 2009-06-25Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 3 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 2009-06-25The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 78 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
3 J/kg
Mixed-layer CIN
-392 J/kg
Mixed-layer LCL
1862 m above ground
0-6 km bulk shear
57 kt
0-1 km storm-relative helicity
78 m²/s²
0-3 km storm-relative helicity
208 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.3

Open this sounding in Storm Lab

The text

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

000 
WFUS53 KFSD 250256
TORFSD
SDC061-067-087-125-250345-
/O.NEW.KFSD.TO.W.0034.090625T0256Z-090625T0345Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE SIOUX FALLS SD
956 PM CDT WED JUN 24 2009

THE NATIONAL WEATHER SERVICE IN SIOUX FALLS HAS ISSUED A

* TORNADO WARNING FOR...
  NORTHEASTERN HANSON COUNTY IN SOUTHEAST SOUTH DAKOTA
  NORTHEASTERN HUTCHINSON COUNTY IN SOUTHEAST SOUTH DAKOTA
  SOUTHERN MCCOOK COUNTY IN SOUTHEAST SOUTH DAKOTA
  NORTHWESTERN TURNER COUNTY IN SOUTHEAST SOUTH DAKOTA

* UNTIL 1045 PM CDT

* AT 956 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM WITH A HISTORY OF PRODUCING TORNADOES. THIS
  DANGEROUS STORM WAS LOCATED NEAR FARMER...OR 17 MILES EAST OF
  MITCHELL...AND MOVING SOUTHEAST AT 25 MPH.

* THIS TORNADIC STORM WILL BE NEAR...
   EMERY AROUND 1015 PM CDT...
   BRIDGEWATER AROUND 1035 PM CDT...
   DOLTON AROUND 1045 PM CDT...

IN ADDITION...LARGE HAIL UP TO GOLF BALL SIZE WILL FALL IN AREAS 
NEAR SPENCER AND CANISTOTA.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

HEAVY RAINFALL MAY OBSCURE THIS TORNADO. TAKE COVER NOW IF YOU WAIT
TO SEE OR HEAR IT COMING...IT MAY BE TOO LATE TO GET TO A SAFE PLACE.

TORNADOES ARE DIFFICULT TO SEE AT NIGHT...SO DO NOT WAIT. TAKE COVER
NOW

&&

LAT...LON 4365 9722 4337 9745 4369 9783 4384 9778
TIME...MOT...LOC 0256Z 301DEG 21KT 4373 9770

$$

CHAPMAN
4 follow-up statements
000 
WWUS53 KFSD 250312
SVSFSD

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE SIOUX FALLS SD
1012 PM CDT WED JUN 24 2009

SDC061-067-087-125-250345-
/O.CON.KFSD.TO.W.0034.000000T0000Z-090625T0345Z/
HANSON SD-MCCOOK SD-TURNER SD-HUTCHINSON SD-
1012 PM CDT WED JUN 24 2009

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 1045 PM CDT FOR 
NORTHEASTERN HUTCHINSON...NORTHWESTERN TURNER...MCCOOK AND 
NORTHEASTERN HANSON COUNTIES...

AT 1010 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO 
INDICATE A TORNADO. THIS TORNADO WAS LOCATED 5 MILES SOUTH OF 
SPENCER...OR 22 MILES EAST OF MITCHELL...MOVING SOUTHEAST AT 25 MPH.

THE TORNADO WILL BE NEAR...
BRIDGEWATER AROUND 1030 PM CDT...
DOLTON AROUND 1045 PM CDT...

IN ADDITION...LARGE HAIL UP TO GOLF BALL SIZE IS LIKELY WITH THIS 
STORM ALONG INTERSTATE 90 BETWEEN THE SPENCER AND SALEM EXITS...
AND SOUTHWARD TOWARD CANISTOTA AFTER 1030 PM.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

HEAVY RAINFALL MAY OBSCURE THIS TORNADO. TAKE COVER NOW IF YOU WAIT
TO SEE OR HEAR IT COMING...IT MAY BE TOO LATE TO GET TO A SAFE PLACE.

TORNADOES ARE DIFFICULT TO SEE AT NIGHT...SO DO NOT WAIT. TAKE COVER
NOW

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 100 AM CDT
THURSDAY MORNING FOR SOUTHWEST MINNESOTA AND SOUTHEASTERN SOUTH
DAKOTA.

&&

LAT...LON 4382 9772 4365 9722 4337 9745 4361 9774
TIME...MOT...LOC 0310Z 310DEG 21KT 4367 9760

$$

CHAPMAN
000 
WWUS53 KFSD 250320
SVSFSD

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE SIOUX FALLS SD
1020 PM CDT WED JUN 24 2009

SDC061-067-087-125-250345-
/O.CON.KFSD.TO.W.0034.000000T0000Z-090625T0345Z/
HANSON SD-MCCOOK SD-TURNER SD-HUTCHINSON SD-
1020 PM CDT WED JUN 24 2009

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 1045 PM CDT FOR
NORTHEASTERN HUTCHINSON...NORTHWESTERN TURNER...SOUTHERN MCCOOK AND
NORTHEASTERN HANSON COUNTIES...

AT 1016 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A 
NEWLY DEVELOPING CIRCULATION JUST NORTHWEST OF BRIDGEWATER...OR 
23 MILES NORTHWEST OF PARKER...MOVING SOUTHEAST AT 25 MPH.

THE TORNADO WILL BE NEAR...
DOLTON AROUND 1040 PM CDT...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

IN ADDITION TO THE TORNADO...THIS STORM IS CAPABLE OF PRODUCING 
GOLF BALL SIZE HAIL AND DESTRUCTIVE STRAIGHT LINE WINDS.

TORNADOES ARE DIFFICULT TO SEE AT NIGHT...SO DO NOT WAIT. TAKE COVER
NOW

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 100 AM CDT
THURSDAY MORNING FOR SOUTHWEST MINNESOTA AND SOUTHEASTERN SOUTH
DAKOTA.

&&

LAT...LON 4382 9772 4365 9722 4337 9745 4361 9774
TIME...MOT...LOC 0318Z 315DEG 23KT 4358 9751

$$

CHAPMAN
000 
WWUS53 KFSD 250324
SVSFSD

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE SIOUX FALLS SD
1024 PM CDT WED JUN 24 2009

SDC061-067-087-125-250345-
/O.CON.KFSD.TO.W.0034.000000T0000Z-090625T0345Z/
HANSON SD-MCCOOK SD-TURNER SD-HUTCHINSON SD-
1024 PM CDT WED JUN 24 2009

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 1045 PM CDT FOR
NORTHEASTERN HUTCHINSON...NORTHWESTERN TURNER...SOUTHERN MCCOOK AND
NORTHEASTERN HANSON COUNTIES...

AT 1021 PM CDT...TRAINED WEATHER SPOTTERS REPORTED A FUNNEL CLOUD. 
THIS FUNNEL CLOUD WAS LOCATED BETWEEN BRIDGEWATER AND DOLTON...OR  
20 MILES NORTHWEST OF PARKER...MOVING SOUTHEAST AT 30 MPH.

THE TORNADO WILL BE NEAR...
DOLTON AROUND 1030 PM CDT...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TORNADOES ARE DIFFICULT TO SEE AT NIGHT...SO DO NOT WAIT. TAKE COVER
NOW

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 100 AM CDT
THURSDAY MORNING FOR SOUTHWEST MINNESOTA AND SOUTHEASTERN SOUTH
DAKOTA.

&&

LAT...LON 4382 9772 4365 9722 4337 9745 4361 9774
TIME...MOT...LOC 0324Z 312DEG 27KT 4353 9744

$$

CHAPMAN
000 
WWUS53 KFSD 250348
SVSFSD

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE SIOUX FALLS SD
1048 PM CDT WED JUN 24 2009

SDC061-067-087-125-250355-
/O.EXP.KFSD.TO.W.0034.000000T0000Z-090625T0345Z/
HANSON SD-MCCOOK SD-TURNER SD-HUTCHINSON SD-
1048 PM CDT WED JUN 24 2009

...THE TORNADO WARNING FOR NORTHEASTERN HANSON COUNTY HAS BEEN 
ALLOWED TO EXPIRE AT 1045 PM CDT...
...A TORNADO WARNING REMAINS IN EFFECT FOR NORTHEASTERN 
HUTCHINSON...TURNER...AND SOUTHERN MCCOOK COUNTIES UNTIL 1115 PM 
CDT...

THE SEVERE THUNDERSTORM WITH A HISTORY OF PRODUCING TORNADOES WAS 
LOCATED NEAR DOLTON...AND VERY LARGE HAIL UP TO 2 INCHES IN 
DIAMETER...WAS MOVING SOUTHEAST AT 20 MPH. THE TORNADIC PORTION OF 
THE STORM WILL AFFECT AREAS NEAR MARION...WHILE VERY LARGE HAIL 
MOVES THROUGH AREAS EASTWARD TOWARD MONROE AND PARKER.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 100 AM CDT
THURSDAY MORNING FOR SOUTHWEST MINNESOTA AND SOUTHEASTERN SOUTH
DAKOTA.

LAT...LON 4382 9772 4365 9722 4337 9745 4361 9774
TIME...MOT...LOC 0324Z 315DEG 25KT 4356 9750

$$
CHAPMAN

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 24, 7:34 PM CDTTornado WarningFSDBeadle41 min
Jun 24, 8:13 PM CDTTornado WarningFSDBeadle, Jerauld, Sanborn40 min
Jun 24, 8:47 PM CDTTornado WarningFSDMiner, Sanborn43 min
Jun 24, 9:12 PM CDTTornado WarningFSDDavison, Hanson, McCook, Miner, Sanborn48 min
Jun 24, 10:38 PM CDTTornado WarningFSDHutchinson, McCook, Turner37 min
Jun 24, 11:11 PM CDTTornado WarningFSDLincoln, Turner34 min
Jun 24, 11:35 PM CDTSevere Thunderstorm WarningFSDAurora, Davison25 min
Jun 24, 11:41 PM CDTSevere Thunderstorm WarningFSDClay, Lincoln, Turner, Yankton34 min
Jun 24, 11:49 PM CDTTornado WarningFSDAurora, Douglas26 min
Jun 24, 11:59 PM CDTSevere Thunderstorm WarningFSDAurora, Davison, Sanborn31 min
Jun 25, 12:06 AM CDTSevere Thunderstorm WarningFSDClay, Lincoln, Turner, Union24 min
Jun 25, 12:13 AM CDTTornado WarningFSDAurora, Charles Mix, Douglas32 min
Jun 25, 12:24 AM CDTSevere Thunderstorm WarningFSDUnion36 min
Jun 25, 12:35 AM CDTSevere Thunderstorm WarningFSDDouglas, Hutchinson25 min
Jun 25, 12:43 AM CDTTornado WarningFSDCharles Mix, Douglas32 min
Jun 25, 12:58 AM CDTSevere Thunderstorm WarningFSDBon Homme, Charles Mix, Douglas, Hutchinson32 min
Jun 25, 1:13 AM CDTSevere Thunderstorm WarningFSDBon Homme, Charles Mix, Douglas17 min
Jun 25, 1:17 AM CDTSevere Thunderstorm WarningFSDBon Homme43 min
Jun 25, 1:22 AM CDTFlash Flood WarningFSDBon Homme, Charles Mix, Douglas, Hutchinson3 hr
Jun 25, 2:12 AM CDTSevere Thunderstorm WarningFSDBon Homme, Yankton38 min

Nearby

Tornado Warnings in South Dakota, 2009Every tornado warning in 2009Tornadoes in 2009

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.