Severe Thunderstorm Warning 75, NWS Sioux Falls, SD

Issued

May 5, 2012, 6:51 PM CDT (23:51 UTC)

Expired

May 5, 2012, 7:30 PM CDT

In force

39 min

Issued by

NWS Sioux Falls, SD

Area

Storm-based polygon

Hail

1.25 in

Wind

60.0 mph

Counties Aurora County, SD, Beadle County, SD, Davison County, SD, Kingsbury County, SD, Miner County, SD, Sanborn County, SD

The Sioux Falls radar (KFSD), 104 km from the middle of the area, began a volume at 23:52 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.

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

463 
WUUS53 KFSD 052351
SVRFSD
SDC003-005-035-077-097-111-060030-
/O.NEW.KFSD.SV.W.0075.120505T2351Z-120506T0030Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE SIOUX FALLS SD
651 PM CDT SAT MAY 5 2012

THE NATIONAL WEATHER SERVICE IN SIOUX FALLS HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  EAST CENTRAL AURORA COUNTY IN SOUTH CENTRAL SOUTH DAKOTA...
  SOUTHEASTERN BEADLE COUNTY IN EAST CENTRAL SOUTH DAKOTA...
  NORTHERN DAVISON COUNTY IN SOUTHEAST SOUTH DAKOTA...
  SOUTHWESTERN KINGSBURY COUNTY IN EAST CENTRAL SOUTH DAKOTA...
  NORTHWESTERN MINER COUNTY IN EAST CENTRAL SOUTH DAKOTA...
  SANBORN COUNTY IN EAST CENTRAL SOUTH DAKOTA...

* UNTIL 730 PM CDT

* AT 651 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS WERE
  TRACKING A SEVERE THUNDERSTORM CAPABLE OF PRODUCING HALF DOLLAR
  SIZE HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH.  THIS STORM WAS
  LOCATED NEAR MOUNT VERNON...OR 11 MILES WEST OF MITCHELL. A SECOND
  STORM WAS LOCATION ABOUT 6 MILES NORTH OF ARTESIAN. THESE STORMS
  ARE MOVING NORTHEAST AT 50 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  LOOMIS AROUND 700 PM CDT...
  LETCHER AROUND 705 PM CDT...
  FORESTBURG AROUND 715 PM CDT...
  ARTESIAN AROUND 720 PM CDT...
  FEDORA AROUND 725 PM CDT...
  CARTHAGE 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 4438 9737 4385 9793 4385 9797 4382 9797
      4359 9821 4367 9843 4448 9784
TIME...MOT...LOC 2351Z 215DEG 41KT 4375 9821
WIND...HAIL 60MPH 1.25IN

$$

JH

134 
WWUS53 KFSD 060010
SVSFSD

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE SIOUX FALLS SD
710 PM CDT SAT MAY 5 2012

SDC003-005-035-077-097-111-060030-
/O.CON.KFSD.SV.W.0075.000000T0000Z-120506T0030Z/
SANBORN SD-MINER SD-KINGSBURY SD-DAVISON SD-BEADLE SD-AURORA SD-
710 PM CDT SAT MAY 5 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR EAST CENTRAL
AURORA...SOUTHEASTERN BEADLE...NORTHERN DAVISON...SOUTHWESTERN
KINGSBURY...NORTHWESTERN MINER AND SANBORN COUNTIES UNTIL 730 PM
CDT...

AT 709 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS WERE TRACKING
MULTIPLE SEVERE THUNDERSTORMS CAPABLE OF PRODUCING GOLF BALL SIZE
HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH.  THESE STORMS WERE 
LOCATED ALONG A LINE EXTENDING FROM 8 MILES WEST OF CARTHAGE...NEAR  
FORESTBURG...AND NEAR MOUNT VERNON...MOVING NORTHEAST AT 20 MPH.

IN ADDITION...AT 704 PM CDT...GOLF BALL SIZE HAIL WAS REPORTED IN 8 
MILES NORTH-NORTHEAST OF ARTESIAN WITH ONE OF THESE STORMS.

SEVERE THUNDERSTORMS WILL BE NEAR...
  LOOMIS AROUND 720 PM CDT...
  CARTHAGE AROUND 725 PM CDT...
  ARTESIAN 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.

THESE ARE SUPERCELL THUNDERSTORMS. DUE TO THE ROTATING NATURE OF 
SUPERCELLS...THEY ARE CAPABLE OF PRODUCING ALL TYPES OF SEVERE 
WEATHER...INCLUDING EXTREMELY LARGE HAIL...DESTRUCTIVE STRAIGHT LINE 
WINDS AND POSSIBLY TORNADOES. BE PREPARED TO ACT QUICKLY SHOULD A 
TORNADO OCCUR OR A TORNADO WARNING BE ISSUED.

&&

LAT...LON 4438 9737 4385 9793 4385 9797 4382 9797
      4359 9821 4367 9843 4448 9784
TIME...MOT...LOC 0009Z 224DEG 18KT 4416 9785 4399 9812
          4374 9817
WIND...HAIL 60MPH 1.75IN

$$

JH

Severe Thunderstorm Warnings in South Dakota, 2012Every severe thunderstorm warning in 2012

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.