Alert archive / Minnesota / Tornado Warnings in 2005

Tornado Warning 9, NWS Sioux Falls, SD

June 20, 2005Pipestone County, Rock County, Minnesota

NWS Sioux Falls, SD issued this tornado warning at Jun 20, 2005, 3:17 PM CDT for Pipestone County, Rock County, Minnesota. It was in force for 32 min. 8 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 20, 2005, 3:17 PM CDT (20:17 UTC)
Expired
Jun 20, 2005, 3:49 PM CDT
In force
32 min
Issued by
NWS Sioux Falls, SD
Area
Counties, with a storm outline in the text

Counties Pipestone County, MN, Rock County, MN

The radar

The Sioux Falls radar (KFSD), 44 km from the middle of the area, began a volume at 20:17 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 20, 3:25 PM CDTHAIL 0.75S Ihlen, MNHAIL WAS REPORTED BETWEEN IHLEN AND JASPER
Jun 20, 3:25 PM CDTTORNADO2 W Jasper, MNUNCONFIRMED PUBLIC REPORT OF TORNADO.
Jun 20, 3:25 PM CDTTORNADO2 Wsw Jasper, MN
Jun 20, 3:27 PM CDTHAIL 0.75Ihlen, MNROTATION OVER JASPER AT 327 PM.
Jun 20, 3:35 PM CDTHAIL 0.75Jasper, MN
Jun 20, 3:42 PM CDTHAIL 0.751 S Jasper, MN
Jun 20, 3:42 PM CDTHAIL 0.75Jasper, MN
Jun 20, 3:53 PM CDTHAIL 0.752 Wsw Jasper, MN

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
Jun 20, 1:25 PM CDTSevere Thunderstorm WatchSPC7 hr

The nearest sounding before it

Aberdeen, SD (KABR), launched 12:00Z, 8.3 hours before the alert went out and 202 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 2005-06-20Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 3072 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 12:00Z on 2005-06-20The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 38 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
3072 J/kg
Mixed-layer CIN
-97 J/kg
Mixed-layer LCL
921 m above ground
0-6 km bulk shear
31 kt
0-1 km storm-relative helicity
38 m²/s²
0-3 km storm-relative helicity
57 m²/s²
Significant tornado parameter
0.0
Supercell composite
2.0

Open this sounding in Storm Lab

The text

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

000 
WFUS53 KFSD 202017
TORFSD
MNC117-133-202045-
/O.NEW.KFSD.TO.W.0009.050620T2017Z-050620T2045Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE SIOUX FALLS SD
317 PM CDT MON JUN 20 2005

THE NATIONAL WEATHER SERVICE IN SIOUX FALLS HAS ISSUED A

* TORNADO WARNING FOR...
  SOUTHWEST PIPESTONE COUNTY IN SOUTHWEST MINNESOTA
  NORTHERN ROCK COUNTY IN SOUTHWEST MINNESOTA

* UNTIL 345 PM CDT

* AT 317 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO 4 MILES
  NORTHWEST OF JASPER...OR ABOUT 11 MILES SOUTHWEST OF PIPESTONE...
  MOVING SOUTHEAST AT 10 MPH.

* THE TORNADO WILL BE NEAR...
  JASPER AROUND 335 PM CDT
  TROSKY AROUND 345 PM CDT

THIS WARNING REPLACES THE SEVERE THUNDERSTORM WARNING PREVIOUSLY
ISSUED FOR THE WARNED AREA.

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

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 800 PM CDT MONDAY
EVENING FOR SOUTHWEST MINNESOTA AND SOUTHEASTERN SOUTH DAKOTA.

LAT...LON 4392 9646 4375 9645 4375 9606 4390 9619

$$

08
3 follow-up statements
000 
WWUS53 KFSD 202029
SVSFSD

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE SIOUX FALLS SD
329 PM CDT MON JUN 20 2005

MNC117-133-202045-
/O.CON.KFSD.TO.W.0009.000000T0000Z-050620T2045Z/
PIPESTONE MN-ROCK MN-
329 PM CDT MON JUN 20 2005

...A TORNADO WARNING CONTINUES UNTIL 345 PM CDT FOR NORTHERN ROCK AND
SOUTHWEST PIPESTONE COUNTIES...

AT 329 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A TORNADO.  THIS TORNADO WAS LOCATED NEAR JASPER...OR ABOUT
11 MILES SOUTH OF PIPESTONE...MOVING SOUTHEAST AT 20 MPH.

* THE TORNADO WILL BE NEAR...
  TROSKY AROUND 340 PM CDT
  HARDWICK AROUND 345 PM CDT

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 800 PM CDT MONDAY
EVENING FOR SOUTHWEST MINNESOTA AND SOUTHEASTERN SOUTH DAKOTA.

LAT...LON 4392 9646 4375 9645 4375 9606 4390 9619

$$

08
000 
WWUS53 KFSD 202037
SVSFSD

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE SIOUX FALLS SD
335 PM CDT MON JUN 20 2005

MNC117-133-202045-
/O.CON.KFSD.TO.W.0009.000000T0000Z-050620T2045Z/
PIPESTONE MN-ROCK MN-
335 PM CDT MON JUN 20 2005

...A TORNADO WARNING CONTINUES UNTIL 345 PM CDT FOR ROCK AND
PIPESTONE COUNTIES...

AT 335 PM CDT...A TORNADO WAS REPORTED.  THIS TORNADO WAS LOCATED 3
MILES SOUTHEAST OF JASPER...OR ABOUT 13 MILES SOUTH OF PIPESTONE...
MOVING SOUTHEAST AT 20 MPH.

* THE TORNADO WILL BE NEAR...
  HARDWICK AROUND 345 PM CDT

AN UNCONFIRMED TORNADO WAS REPORTED 8 MILES EAST OF DELL RAPIDS AT 
325 PM CDT...WHICH WOULD HAVE PLACED IT NEAR THE JASPER AREA.

THE STRONGEST ROTATION HAS MOVED MAINLY INTO NORTHERN ROCK COUNTY 
AT 335 PM CDT.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 800 PM CDT MONDAY
EVENING FOR SOUTHWEST MINNESOTA AND SOUTHEASTERN SOUTH DAKOTA.

LAT...LON 4392 9646 4375 9645 4375 9606 4390 9619

$$

08
000 
WWUS53 KFSD 202049
SVSFSD

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE SIOUX FALLS SD
348 PM CDT MON JUN 20 2005

MNC117-133-202058-
/O.EXP.KFSD.TO.W.0009.000000T0000Z-050620T2045Z/
PIPESTONE MN-ROCK MN-
348 PM CDT MON JUN 20 2005

...THE TORNADO WARNING FOR NORTHERN ROCK AND SOUTHWEST PIPESTONE 
COUNTIES EXPIRES AT 345 PM CDT...

THE WARNING HAS EXPIRED. THE ROTATION HAS WEAKENED AND THE MAIN 
THREAT HAS SHIFTED EAST AND BECOME A STRAIGHT LINE WIND THREAT.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 800 PM CDT MONDAY
EVENING FOR SOUTHWEST MINNESOTA AND SOUTHEASTERN SOUTH DAKOTA. A
SEVERE THUNDERSTORM WATCH ALSO REMAINS IN EFFECT UNTIL 1000 PM CDT
MONDAY EVENING FOR NORTHWEST IOWA AND NORTHEAST NEBRASKA AND
SOUTHEAST SOUTH DAKOTA.

LAT...LON 4392 9646 4375 9645 4375 9606 4390 9619

$$

08

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 20, 2:28 PM CDTSevere Thunderstorm WarningFSDMurray47 min
Jun 20, 3:09 PM CDTSevere Thunderstorm WarningFSDPipestone, Rock51 min
Jun 20, 3:45 PM CDTSevere Thunderstorm WarningFSDRock31 min
Jun 20, 3:46 PM CDTSevere Thunderstorm WarningFSDPipestone, Rock28 min
Jun 20, 3:57 PM CDTSevere Thunderstorm WarningFSDJackson33 min
Jun 20, 4:01 PM CDTSevere Thunderstorm WarningFSDNobles44 min
Jun 20, 4:39 PM CDTSevere Thunderstorm WarningFSDJackson52 min
Jun 20, 4:41 PM CDTFlash Flood WarningFSDJackson3 hr

Nearby

Tornado Warnings in Minnesota, 2005Every tornado warning in 2005Tornadoes in 2005

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.