Alert archive / South Dakota / Severe Thunderstorm Warnings in 2017

Severe Thunderstorm Warning 71, NWS Sioux Falls, SD

June 13, 20174 counties in South Dakota; Rock County, Minnesota; Lyon County, Iowa

NWS Sioux Falls, SD issued this severe thunderstorm warning at Jun 13, 2017, 8:41 PM CDT for 4 counties in South Dakota; Rock County, Minnesota; Lyon County, Iowa. It was in force for 34 min. 11 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 13, 2017, 8:41 PM CDT (01:41 UTC)
Expired
Jun 13, 2017, 9:15 PM CDT
In force
34 min
Issued by
NWS Sioux Falls, SD
Area
Storm-based polygon
Hail
1.25 in
Wind
70.0 mph

Counties Lyon County, IA, Rock County, MN, Lincoln County, SD, Minnehaha County, SD, Moody County, SD, Turner County, SD

The radar

The Sioux Falls radar (KFSD), 20 km from the middle of the area, began a volume at 01:43 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 13, 8:57 PM CDTTSTM WND GST 602 S Chancellor, SD
Jun 13, 8:57 PM CDTHAIL 0.751 S Chancellor, SD
Jun 13, 9:05 PM CDTTSTM WND DMG3 W Sioux Falls, SDLARGE TREE DOWN. 18-24 TREE TRUNK SPLIT 3 FEET ABOVE GROUND AND LAID THE TREE OVER.
Jun 13, 9:05 PM CDTTSTM WND GST 754 Ese Crooks, SD65 TO 75 ESTIMATED.
Jun 13, 9:07 PM CDTHAIL 14 Ene Wall Lake, SD
Jun 13, 9:10 PM CDTTSTM WND DMG3 W Sioux Falls, SDROOF TORN OFF OF MOBILE HOME.
Jun 13, 9:13 PM CDTTSTM WND GST 603 N Sioux Falls, SDESTIMATED AT NWS OFFICE.
Jun 13, 9:15 PM CDTTSTM WND DMG3 Sw Sioux Falls, SDLARGE TREE UPROOTED.
Jun 13, 9:16 PM CDTTSTM WND GST 60Tea, SD
Jun 13, 9:20 PM CDTHAIL 0.881 Wsw Sioux Falls, SD
Jun 13, 9:21 PM CDTHAIL 14 Ene Tea, SDHAIL JUST ENDED.

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 13, 7:01 PM CDTTornado WatchSPC6 hr

The nearest sounding before it

Aberdeen, SD (KABR), launched 00:00Z, 1.7 hours before the alert went out and 197 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 2017-06-14Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 118 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 2017-06-14The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 279 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
118 J/kg
Mixed-layer CIN
-325 J/kg
Mixed-layer LCL
1575 m above ground
0-6 km bulk shear
62 kt
0-1 km storm-relative helicity
279 m²/s²
0-3 km storm-relative helicity
479 m²/s²
Significant tornado parameter
0.0
Supercell composite
10.8

Open this sounding in Storm Lab

The text

As transmitted.

937 
WUUS53 KFSD 140141
SVRFSD
IAC119-MNC133-SDC083-099-101-125-140215-
/O.NEW.KFSD.SV.W.0071.170614T0141Z-170614T0215Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Sioux Falls SD
841 PM CDT TUE JUN 13 2017

The National Weather Service in Sioux Falls has issued a

* Severe Thunderstorm Warning for...
  Northwestern Lyon County in northwestern Iowa...
  Western Rock County in southwestern Minnesota...
  Southeastern Moody County in east central South Dakota...
  Minnehaha County in southeastern South Dakota...
  Northern Lincoln County in southeastern South Dakota...
  Northeastern Turner County in southeastern South Dakota...

* Until 915 PM CDT

* At 840 PM CDT, a severe thunderstorm was located over Parker, 
  moving northeast at 60 mph. This storm has had a history of 
  producing quarter size hail. 

  HAZARD...70 mph wind gusts and half dollar size hail. 

  SOURCE...Radar indicated. 

  IMPACT...Hail damage to vehicles is expected. Expect considerable 
           tree damage. Wind damage is also likely to mobile homes, 
           roofs, and outbuildings. 

* This severe thunderstorm will be near, 
  Wall Lake around 850 PM CDT. 
  Tea around 855 PM CDT. 
  Harrisburg around 900 PM CDT. 
  Sioux Falls around 905 PM CDT. 
  Brandon and Rowena around 910 PM CDT. 
  Garretson, Valley Springs, Sherman and Palisades State Park around 
  915 PM CDT. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

Prepare immediately for large hail and damaging winds. People outside
should move immediately to shelter inside a strong building. Stay
away from windows.

To report severe weather, contact your nearest law enforcement
agency. They will send your report to the National Weather Service
office in Sioux Falls.

Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.

&&

A tornado watch remains in effect until 200 AM CDT for northwestern
Iowa...southwestern Minnesota...and southeastern and east central
South Dakota.

LAT...LON 4386 9645 4385 9645 4385 9644 4375 9632
      4342 9633 4332 9704 4367 9707 4389 9649
TIME...MOT...LOC 0140Z 236DEG 52KT 4339 9708 

HAIL...1.25IN
WIND...70MPH
 
$$

Dux
1 follow-up statement
893 
WWUS53 KFSD 140149
SVSFSD

Severe Weather Statement
National Weather Service Sioux Falls SD
849 PM CDT TUE JUN 13 2017

IAC119-MNC133-SDC083-099-101-125-140215-
/O.CON.KFSD.SV.W.0071.000000T0000Z-170614T0215Z/
Lyon IA-Rock MN-Moody SD-Minnehaha SD-Lincoln SD-Turner SD-
849 PM CDT TUE JUN 13 2017

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 915 PM CDT
FOR NORTHWESTERN LYON...WESTERN ROCK...SOUTHEASTERN MOODY...
MINNEHAHA...NORTHERN LINCOLN AND NORTHEASTERN TURNER COUNTIES...

At 848 PM CDT, severe thunderstorms were located along a line
extending from near Baltic to near Crooks to near Lennox, moving
northeast at 50 mph.

HAZARD...70 mph wind gusts and half dollar size hail. 

SOURCE...Trained weather spotters. At 840 pm 60 mph winds and nickel 
         size hail were reported near Hartford. 

IMPACT...Hail damage to vehicles is expected. Expect considerable 
         tree damage. Wind damage is also likely to mobile homes, 
         roofs, and outbuildings. 

These severe storms will be near...
  Baltic around 855 PM CDT. 
  Palisades State Park and Lake Alvin State Recreation Area around 
  905 PM CDT. 
  Garretson, Sherman and Rowena around 910 PM CDT. 
  Brandon, Larchwood and Valley Springs around 915 PM CDT. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

Prepare immediately for large hail and damaging winds. People outside
should move to a shelter, inside a strong building and away from
windows.

To report severe weather contact your nearest law enforcement agency.
They will send your report to the National Weather Service office in
Sioux Falls.

Torrential rainfall is occurring with these storms, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.

&&

A tornado watch remains in effect until 200 AM CDT for northwestern
Iowa...southwestern Minnesota...and southeastern and east central
South Dakota.

LAT...LON 4386 9645 4385 9645 4385 9644 4375 9632
      4342 9633 4332 9704 4367 9707 4389 9649
TIME...MOT...LOC 0148Z 237DEG 43KT 4376 9681 4362 9679 4338 9689 

HAIL...1.25IN
WIND...70MPH
 
$$

Dux

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 13, 7:12 PM CDTSevere Thunderstorm WarningFSDBon Homme, Hanson, Hutchinson, Turner33 min
Jun 13, 7:32 PM CDTSevere Thunderstorm WarningFSDBon Homme, Hanson, Hutchinson, McCook, Turner, Yankton28 min
Jun 13, 7:53 PM CDTSevere Thunderstorm WarningFSDHutchinson, McCook, Minnehaha, Turner37 min
Jun 13, 8:16 PM CDTSevere Thunderstorm WarningFSDLincoln, Minnehaha, Turner29 min
Jun 13, 8:23 PM CDTSevere Thunderstorm WarningFSDMcCook, Minnehaha, Turner37 min
Jun 13, 8:43 PM CDTSevere Thunderstorm WarningFSDClay, Lincoln, Turner47 min
Jun 13, 9:10 PM CDTSevere Thunderstorm WarningFSDClay, Lincoln, Union50 min
Jun 13, 9:13 PM CDTSevere Thunderstorm WarningFSDClay, Lincoln, Minnehaha47 min
Jun 13, 9:16 PM CDTSevere Thunderstorm WarningFSDUnion44 min
Jun 13, 9:18 PM CDTSevere Thunderstorm WarningFSDMinnehaha, Moody42 min
Jun 13, 9:58 PM CDTSevere Thunderstorm WarningFSDCottonwood, Jackson, Lincoln, Lyon, Murray, Nobles and 2 more47 min
Jun 13, 10:33 PM CDTSevere Thunderstorm WarningFSDCottonwood, Jackson42 min
Jun 13, 9:40 PM CDTSevere Thunderstorm WarningFSDSioux35 min
Jun 13, 9:43 PM CDTSevere Thunderstorm WarningFSDCherokee, O'Brien, Plymouth, Sioux47 min
Jun 13, 9:51 PM CDTSevere Thunderstorm WarningFSDBuena Vista, Cherokee, Ida, Woodbury24 min
Jun 13, 10:15 PM CDTSevere Thunderstorm WarningFSDBuena Vista, Cherokee, Clay, Dickinson, Ida, O'Brien and 1 more45 min

Nearby

Severe Thunderstorm Warnings in South Dakota, 2017Severe Thunderstorm Warnings in Minnesota, 2017Severe Thunderstorm Warnings in Iowa, 2017Every severe thunderstorm warning in 2017

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.