Alert archive / South Dakota / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 79, NWS Sioux Falls, SD

May 5, 2012Beadle County, Kingsbury County, South Dakota

NWS Sioux Falls, SD issued this severe thunderstorm warning at May 5, 2012, 7:41 PM CDT for Beadle County, Kingsbury County, South Dakota. It was in force for 36 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: May 5, 2012, 7:41 PM CDT (00:41 UTC)
Expired: May 5, 2012, 8:17 PM CDT
In force: 36 min
Issued by: NWS Sioux Falls, SD
Area: Storm-based polygon
Hail: 1.5 in
Wind: 60.0 mph

Counties Beadle County, SD, Kingsbury County, SD

The radar

The Aberdeen radar (KABR), 117 km from the middle of the area, began a volume at 00:45 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.

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
May 5, 6:46 PM CDT	Severe Thunderstorm Watch	SPC	6 hr

The nearest sounding before it

Aberdeen, SD (KABR), launched 00:00Z, 0.7 hours before the alert went out and 64 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 657 m above ground
0-6 km bulk shear: 64 kt
0-1 km storm-relative helicity: 201 m²/s²
0-3 km storm-relative helicity: 278 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.4

Open this sounding in Storm Lab

The text

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

278 
WUUS53 KFSD 060041
SVRFSD
SDC005-077-060130-
/O.NEW.KFSD.SV.W.0079.120506T0041Z-120506T0130Z/

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

THE NATIONAL WEATHER SERVICE IN SIOUX FALLS HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  EASTERN BEADLE COUNTY IN EAST CENTRAL SOUTH DAKOTA...
  NORTHWESTERN KINGSBURY COUNTY IN EAST CENTRAL SOUTH DAKOTA...

* UNTIL 830 PM CDT

* AT 741 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS WERE
  TRACKING A SEVERE THUNDERSTORM CAPABLE OF PRODUCING WALNUT SIZE
  HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH.  THIS STORM WAS
  LOCATED 8 MILES NORTHWEST OF DE SMET...OR 26 MILES EAST OF HURON...
  AND MOVING NORTHEAST AT 35 MPH. ADDITIONAL STORMS WERE LOCATED
  FROM NEAR YALE...TO 5 MILES SOUTHWEST OF CAVOUR...ALSO MOVING
  NORTHEAST AT 35 MPH.

* THE SEVERE THUNDERSTORM WILL AFFECT MAINLY RURAL AREAS OF EASTERN
  BEADLE AND NORTHWESTERN KINGSBURY COUNTIES.

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 4455 9785 4454 9746 4422 9785 4427 9821
      4462 9786 4462 9785
TIME...MOT...LOC 0041Z 213DEG 30KT 4446 9768
WIND...HAIL 60MPH 1.50IN

$$

JH

1 follow-up statement

352 
WWUS53 KFSD 060117
SVSFSD

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

SDC005-077-060127-
/O.CAN.KFSD.SV.W.0079.000000T0000Z-120506T0130Z/
KINGSBURY SD-BEADLE SD-
817 PM CDT SAT MAY 5 2012

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN BEADLE AND
NORTHWESTERN KINGSBURY COUNTIES IS CANCELLED...

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

ADDITIONAL STRONG THUNDERSTORMS ARE STILL POSSIBLE...AND A SEVERE 
THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 100 AM CDT.

TO REPORT SEVERE WEATHER...CONTACT YOUR NEAREST LAW ENFORCEMENT
AGENCY. THEY WILL RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE
IN SIOUX FALLS.

LAT...LON 4455 9785 4454 9746 4422 9785 4427 9821
      4462 9786 4462 9785
TIME...MOT...LOC 0117Z 213DEG 30KT 4471 9745

$$

JH

The office that day

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

Issued	Product	Office	Counties	Lasted
May 5, 7:05 PM CDT	Severe Thunderstorm Warning	FSD	Davison, Hanson, McCook, Miner	25 min
May 5, 7:29 PM CDT	Severe Thunderstorm Warning	FSD	Davison, Hanson, Lake, McCook, Miner, Sanborn	46 min
May 5, 7:30 PM CDT	Severe Thunderstorm Warning	FSD	Brookings, Kingsbury, Miner, Sanborn	45 min
May 5, 7:37 PM CDT	Flash Flood Warning	FSD	Davison, Hanson, Miner, Sanborn	7 hr
May 5, 7:59 PM CDT	Severe Thunderstorm Warning	FSD	Charles Mix, Gregory	46 min
May 5, 8:11 PM CDT	Severe Thunderstorm Warning	FSD	Davison, Hanson, Lake, McCook, Miner, Minnehaha and 1 more	49 min
May 5, 8:16 PM CDT	Severe Thunderstorm Warning	FSD	Brookings, Kingsbury	29 min
May 5, 8:42 PM CDT	Severe Thunderstorm Warning	FSD	Brookings, Kingsbury	48 min
May 5, 8:46 PM CDT	Severe Thunderstorm Warning	FSD	Aurora, Brule, Charles Mix	44 min
May 5, 8:57 PM CDT	Severe Thunderstorm Warning	FSD	Brookings, Hanson, Lake, McCook, Miner, Minnehaha and 1 more	48 min
May 5, 9:05 PM CDT	Severe Thunderstorm Warning	FSD	Beadle, Kingsbury, Miner, Sanborn	25 min
May 5, 9:07 PM CDT	Flash Flood Warning	FSD	Lake, Miner	7 hr
May 5, 9:26 PM CDT	Severe Thunderstorm Warning	FSD	Kingsbury, Miner, Sanborn	23 min
May 5, 9:27 PM CDT	Severe Thunderstorm Warning	FSD	Aurora, Brule	28 min
May 5, 9:29 PM CDT	Severe Thunderstorm Warning	FSD	Brookings	46 min
May 5, 9:42 PM CDT	Severe Thunderstorm Warning	FSD	Lake, McCook, Minnehaha, Moody	48 min
May 5, 10:02 PM CDT	Severe Thunderstorm Warning	FSD	Kingsbury, Miner, Sanborn	28 min
May 5, 10:07 PM CDT	Severe Thunderstorm Warning	FSD	Brookings	38 min
May 5, 10:15 PM CDT	Flash Flood Warning	FSD	Moody	4 hr
May 5, 10:28 PM CDT	Severe Thunderstorm Warning	FSD	Lake, Minnehaha, Moody	62 min
May 5, 10:31 PM CDT	Severe Thunderstorm Warning	FSD	Brookings, Lake, Miner	29 min
May 5, 10:57 PM CDT	Severe Thunderstorm Warning	FSD	Brookings, Lake	33 min
May 5, 11:08 PM CDT	Severe Thunderstorm Warning	FSD	Hanson, Lake, McCook, Miner	37 min
May 5, 11:25 PM CDT	Severe Thunderstorm Warning	FSD	Brookings, Lake, Moody	65 min
May 5, 11:45 PM CDT	Severe Thunderstorm Warning	FSD	Lake, McCook, Miner, Minnehaha	45 min
May 6, 12:22 AM CDT	Severe Thunderstorm Warning	FSD	Lake, McCook, Minnehaha, Moody	38 min
May 6, 1:08 AM CDT	Areal Flood Warning	FSD	Brookings, Hanson, Kingsbury, Lake, McCook, Miner and 2 more	33 hr
May 6, 4:08 AM CDT	River Flood Warning	FSD	Moody	23 hr
May 6, 4:45 AM CDT	River Flood Warning	FSD	Brookings, Moody	29 hr
May 6, 4:45 AM CDT	River Flood Warning	FSD	Minnehaha, Moody	3 days
May 6, 4:45 AM CDT	River Flood Warning	FSD	Minnehaha	4 days
May 6, 4:45 AM CDT	River Flood Warning	FSD	Lincoln, Minnehaha	4 days
May 6, 4:45 AM CDT	River Flood Warning	FSD	Lincoln, Union	7 days
May 6, 4:45 AM CDT	River Flood Warning	FSD	Union	7 days
May 6, 8:24 AM CDT	River Flood Warning	FSD	McCook	4 days
May 6, 10:31 AM CDT	River Flood Warning	FSD	Davison, Hanson	7 days
May 6, 10:31 AM CDT	River Flood Warning	FSD	Hutchinson, Yankton	5 days
May 6, 10:31 AM CDT	River Flood Warning	FSD	Yankton	44 hr
May 6, 10:31 AM CDT	River Flood Warning	FSD	Turner	71 hr
May 6, 10:31 AM CDT	River Flood Warning	FSD	Turner	5 days
May 6, 10:31 AM CDT	River Flood Warning	FSD	Clay	7 days
May 6, 6:58 PM CDT	River Flood Warning	FSD	Minnehaha	3 days

Nearby

Severe Thunderstorm Warnings in South Dakota, 2012 Every 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.