Alert archive / Minnesota / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 165, NWS Sioux Falls, SD

June 29, 2012Lincoln County, Pipestone County, Minnesota

NWS Sioux Falls, SD issued this severe thunderstorm warning at Jun 29, 2012, 6:46 PM CDT for Lincoln County, Pipestone County, Minnesota. It was in force for 44 min. 6 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 29, 2012, 6:46 PM CDT (23:46 UTC)
Expired
Jun 29, 2012, 7:30 PM CDT
In force
44 min
Issued by
NWS Sioux Falls, SD
Area
Storm-based polygon
Hail
1.75 in
Wind
60.0 mph

Counties Lincoln County, MN, Pipestone County, MN

The radar

The Sioux Falls radar (KFSD), 79 km from the middle of the area, began a volume at 23:48 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 29, 7:11 PM CDTHAIL 1.55 Nnw Holland, MN
Jun 29, 7:22 PM CDTHAIL 0.881 Wsw Ruthton, MN
Jun 29, 7:25 PM CDTHAIL 0.882 Sw Ruthton, MN
Jun 29, 7:29 PM CDTHAIL 0.881 Se Ruthton, MN
Jun 29, 7:30 PM CDTHAIL 0.51 S Ruthton, MN
Jun 29, 7:30 PM CDTHAIL 0.75Ruthton, MNDIME SIZED HAIL IN RUTHTON.

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 12:00Z, 11.8 hours before the alert went out and 191 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 2012-06-29Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 444 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 2012-06-29The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 72 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
444 J/kg
Mixed-layer CIN
-507 J/kg
Mixed-layer LCL
1747 m above ground
0-6 km bulk shear
42 kt
0-1 km storm-relative helicity
72 m²/s²
0-3 km storm-relative helicity
116 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.

090 
WUUS53 KFSD 292346
SVRFSD
MNC081-117-300030-
/O.NEW.KFSD.SV.W.0165.120629T2346Z-120630T0030Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE SIOUX FALLS SD
646 PM CDT FRI JUN 29 2012

THE NATIONAL WEATHER SERVICE IN SIOUX FALLS HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTHEASTERN LINCOLN COUNTY IN SOUTHWEST MINNESOTA...
  NORTHERN PIPESTONE COUNTY IN SOUTHWEST MINNESOTA...

* UNTIL 730 PM CDT

* AT 646 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS WERE
  TRACKING A SEVERE THUNDERSTORM CAPABLE OF PRODUCING GOLF BALL SIZE
  HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH.  THIS STORM WAS
  LOCATED 5 MILES SOUTH OF LAKE BENTON...OR 13 MILES NORTH OF
  PIPESTONE...AND MOVING EAST AT 5 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  HOLLAND AROUND 730 PM CDT...
  

PRECAUTIONARY/PREPAREDNESS ACTIONS...

SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 60 MILES PER
HOUR...DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN. FOR
YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR
HOME OR BUSINESS. HEAVY RAINS FLOOD ROADS QUICKLY SO DO NOT DRIVE
INTO AREAS WHERE WATER COVERS THE ROAD.

&&

LAT...LON 4425 9608 4406 9607 4412 9643 4427 9637
TIME...MOT...LOC 2346Z 288DEG 10KT 4419 9628
WIND...HAIL 60MPH 1.75IN

$$

HANKO
2 follow-up statements
831 
WWUS53 KFSD 300006
SVSFSD

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE SIOUX FALLS SD
706 PM CDT FRI JUN 29 2012

MNC081-300016-
/O.CAN.KFSD.SV.W.0165.000000T0000Z-120630T0030Z/
LINCOLN MN-
706 PM CDT FRI JUN 29 2012

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN LINCOLN COUNTY IS
CANCELLED...

THE STORM WHICH PROMPTED THE WARNING HAS MOVED OUT OF THE WARNED 
AREA.

LAT...LON 4411 9637 4420 9633 4420 9608 4406 9607
TIME...MOT...LOC 0006Z 281DEG 8KT 4415 9628

$$

MNC117-300030-
/O.CON.KFSD.SV.W.0165.000000T0000Z-120630T0030Z/
PIPESTONE MN-
706 PM CDT FRI JUN 29 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR NORTHERN
PIPESTONE COUNTY UNTIL 730 PM CDT...

AT 706 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS WERE TRACKING
A SEVERE THUNDERSTORM CAPABLE OF PRODUCING GOLF BALL SIZE HAIL...AND
DAMAGING WINDS IN EXCESS OF 60 MPH.  THIS STORM WAS LOCATED 7 MILES
NORTHWEST OF HOLLAND...OR 11 MILES NORTH OF PIPESTONE...MOVING EAST
AT 10 MPH.

THE SEVERE THUNDERSTORM WILL BE NEAR...
  HOLLAND AND RUTHTON AROUND 730 PM CDT...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 60 MILES PER
HOUR...DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN. FOR
YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR
HOME OR BUSINESS. HEAVY RAINS FLOOD ROADS QUICKLY SO DO NOT DRIVE
INTO AREAS WHERE WATER COVERS THE ROAD.

&&

LAT...LON 4411 9637 4420 9633 4420 9608 4406 9607
TIME...MOT...LOC 0006Z 281DEG 8KT 4415 9628
WIND...HAIL 60MPH 1.75IN

$$

HANKO
706 
WWUS53 KFSD 300015
SVSFSD

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE SIOUX FALLS SD
715 PM CDT FRI JUN 29 2012

MNC117-300030-
/O.CON.KFSD.SV.W.0165.000000T0000Z-120630T0030Z/
PIPESTONE MN-
715 PM CDT FRI JUN 29 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR NORTHEASTERN
PIPESTONE COUNTY UNTIL 730 PM CDT...

AT 714 PM CDT...TRAINED WEATHER SPOTTERS REPORTED A SEVERE
THUNDERSTORM PRODUCING WALNUT SIZE HAIL.  THIS STORM WAS LOCATED 5
MILES NORTHWEST OF HOLLAND...OR 10 MILES NORTH OF PIPESTONE...MOVING
EAST AT 10 MPH.

IN ADDITION...AT 711 PM CDT PING PONG SIZED HAIL WAS REPORTED IN 5 
MILES NORTHWEST OF HOLLAND WITH THIS STORM.

THE SEVERE THUNDERSTORM WILL BE NEAR...
  HOLLAND AND RUTHTON AROUND 725 PM CDT...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 60 MILES PER
HOUR...DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN. FOR
YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR
HOME OR BUSINESS. HEAVY RAINS FLOOD ROADS QUICKLY SO DO NOT DRIVE
INTO AREAS WHERE WATER COVERS THE ROAD.

&&

LAT...LON 4406 9607 4410 9630 4420 9628 4420 9612
      4419 9608
TIME...MOT...LOC 0014Z 282DEG 10KT 4414 9624
WIND...HAIL <58MPH 1.50IN

$$

HANKO

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 29, 5:03 PM CDTSevere Thunderstorm WarningFSDPipestone17 min
Jun 29, 5:37 PM CDTSevere Thunderstorm WarningFSDPipestone23 min
Jun 29, 5:55 PM CDTSevere Thunderstorm WarningFSDPipestone35 min

Nearby

Severe Thunderstorm Warnings in Minnesota, 2012Every severe thunderstorm warning in 2012

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.