Alert archive / South Dakota / Severe Thunderstorm Warnings in 2010

Severe Thunderstorm Warning 21, NWS Aberdeen, SD

May 22, 20109 counties in South Dakota

NWS Aberdeen, SD issued this severe thunderstorm warning at May 22, 2010, 10:45 PM CDT for 9 counties in South Dakota. It was in force for 60 min. 3 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: May 22, 2010, 10:45 PM CDT (03:45 UTC)
Expired: May 22, 2010, 11:45 PM CDT
In force: 60 min
Issued by: NWS Aberdeen, SD
Area: Storm-based polygon
Hail: 1.75 in
Wind: 60.0 mph

Counties Brown County, SD, Clark County, SD, Codington County, SD, Day County, SD, Grant County, SD, Hamlin County, SD, Marshall County, SD, Roberts County, SD, Spink County, SD

The radar

The Aberdeen radar (KABR), 72 km from the middle of the area, began a volume at 03:45 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.

What was reported inside it

Time	Report	Where	Remark
May 22, 11:40 PM CDT	TSTM WND DMG	7 Wsw Clark, SD	ONE POLE BARN COMPLETELY DESTROYED. ANOTHER TWO BARNS HAD DOORS BLOWN OFF WITH ONE OF THE BARNS ALSO SUSTAINING TIN ROOF DAMAGE. APPLE TREE IN FRONT YARD BROKE OFF ABOUT HALF WAY UP TREE
May 22, 11:43 PM CDT	TSTM WND GST 60	Roslyn, SD
May 22, 11:50 PM CDT	HAIL 1.5	4 E Veblen, SD	ALSO MEASURED 42MPH WIND WITH THE HAIL

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.

Issued	Product	Office	Lasted
May 22, 5:10 PM CDT	Tornado Watch	SPC	8 hr

The nearest sounding before it

Aberdeen, SD (KABR), launched 00:00Z, 3.8 hours before the alert went out and 63 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: 3099 J/kg
Mixed-layer CIN: -118 J/kg
Mixed-layer LCL: 1145 m above ground
0-6 km bulk shear: 60 kt
0-1 km storm-relative helicity: 426 m²/s²
0-3 km storm-relative helicity: 443 m²/s²
Significant tornado parameter: 4.0
Supercell composite: 14.0

Open this sounding in Storm Lab

The text

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

644 
WUUS53 KABR 230345
SVRABR
SDC013-025-029-037-051-057-091-109-115-230445-
/O.NEW.KABR.SV.W.0021.100523T0345Z-100523T0445Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE ABERDEEN SD
1045 PM CDT SAT MAY 22 2010

THE NATIONAL WEATHER SERVICE IN ABERDEEN HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  EASTERN BROWN COUNTY IN NORTHEAST SOUTH DAKOTA...
  CLARK COUNTY IN NORTHEAST SOUTH DAKOTA...
  WESTERN CODINGTON COUNTY IN NORTHEAST SOUTH DAKOTA...
  DAY COUNTY IN NORTHEAST SOUTH DAKOTA...
  EXTREME NORTHWESTERN GRANT COUNTY IN NORTHEAST SOUTH DAKOTA...
  NORTHWESTERN HAMLIN COUNTY IN NORTHEAST SOUTH DAKOTA...
  MARSHALL COUNTY IN NORTHEAST SOUTH DAKOTA...
  WESTERN ROBERTS COUNTY IN NORTHEAST SOUTH DAKOTA...
  SPINK COUNTY IN NORTHEAST SOUTH DAKOTA...

* UNTIL 1145 PM CDT

* AT 1040 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  LINE OF 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 6 MILES NORTHEAST OF KIDDER TO
  PIERPONT TO TULARE...MOVING EAST AT 35 MPH.

* SEVERE THUNDERSTORMS WILL BE NEAR...
  TURTON...SPINK COLONY AND CRANDALL AROUND 1050 PM CDT...
  DOLAND AND BRISTOL AROUND 1055 PM CDT...
  FORT SISSETON STATE PARK AROUND 1100 PM CDT...
  ROY LAKE STATE PARK...LAKE CITY...HILLHEAD AND BUTLER AROUND 1105
  PM CDT...
  VEBLEN...ROSLYN...RAYMOND AND HILLSIDE COLONY AROUND 1110 PM CDT...
  WEBSTER AROUND 1115 PM CDT...

THIS WARNING INCLUDES HIGHWAY 281 BETWEEN MILE MARKERS 137 AND 156.

THIS WARNING INCLUDES HIGHWAY 212 BETWEEN MILE MARKERS 307 AND 363.

THIS WARNING INCLUDES HIGHWAY 12 BETWEEN MILE MARKERS 302 AND 361.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THESE ARE DANGEROUS STORMS. IF YOU ARE IN THEIR PATH...PREPARE
IMMEDIATELY FOR DAMAGING WINDS AND DESTRUCTIVE HAIL CAPABLE OF
PRODUCING SIGNIFICANT DAMAGE. PEOPLE OUTSIDE SHOULD MOVE TO A
SHELTER...PREFERABLY INSIDE A STRONG BUILDING AND AWAY FROM WINDOWS.

THESE STORMS HAVE A HISTORY OF PRODUCING LARGE HAIL. SEEK SHELTER NOW
INSIDE A STURDY STRUCTURE AND STAY AWAY FROM WINDOWS! A TORNADO WATCH
REMAINS IN EFFECT UNTIL 100 AM CDT SUNDAY MORNING FOR NORTHEASTERN
SOUTH DAKOTA.

&&

LAT...LON 4526 9716 4453 9757 4454 9785 4462 9788
      4463 9864 4594 9805 4594 9689
TIME...MOT...LOC 0345Z 268DEG 32KT 4594 9756 4549 9779
          4473 9837
WIND...HAIL 60MPH 1.75IN

$$
DORN

1 follow-up statement

883 
WWUS53 KABR 230419
SVSABR

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE ABERDEEN SD
1119 PM CDT SAT MAY 22 2010

SDC013-025-029-037-051-057-091-109-115-230445-
/O.CON.KABR.SV.W.0021.000000T0000Z-100523T0445Z/
BROWN SD-MARSHALL SD-ROBERTS SD-DAY SD-GRANT SD-SPINK SD-CLARK SD-
CODINGTON SD-HAMLIN SD-
1119 PM CDT SAT MAY 22 2010

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR NORTHWESTERN
HAMLIN...WESTERN CODINGTON...CLARK...EASTERN SPINK...EXTREME WEST
CENTRAL GRANT...DAY...WESTERN ROBERTS...MARSHALL AND SOUTHEASTERN
BROWN COUNTIES UNTIL 1145 PM CDT...

AT 1116 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING QUARTER SIZE
HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH.  THESE STORMS WERE
LOCATED ALONG A LINE EXTENDING FROM 6 MILES NORTH OF VEBLEN TO ROSLYN
TO HILLSIDE COLONY...MOVING EAST AT 25 MPH.

SEVERE THUNDERSTORMS WILL BE NEAR...
  LILY AND CLARK COLONY AROUND 1125 PM CDT...
  WEBSTER AROUND 1130 PM CDT...
  GRENVILLE...FORDHAM COLONY AND CARPENTER AROUND 1135 PM CDT...
  CLAIRE CITY AND BRADLEY AROUND 1140 PM CDT...
  CLARK...HILLCREST COLONY...WAUBAY AND GARDEN CITY AROUND 1145 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. A TORNADO WATCH REMAINS IN
EFFECT UNTIL 100 AM CDT SUNDAY MORNING FOR NORTHEAST SOUTH DAKOTA.

&&

LAT...LON 4526 9716 4453 9757 4454 9785 4462 9788
      4463 9833 4594 9777 4594 9689
TIME...MOT...LOC 0419Z 269DEG 20KT 4595 9725 4550 9748
          4474 9806
WIND...HAIL 60MPH 1.00IN

$$
DORN

The office that day

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

Issued	Product	Office	Counties	Lasted
May 22, 7:11 PM CDT	Tornado Warning	ABR	Edmunds, McPherson	49 min
May 22, 7:32 PM CDT	Severe Thunderstorm Warning	ABR	Faulk, Hand, Hyde, Sully	58 min
May 22, 7:34 PM CDT	Tornado Warning	ABR	Edmunds, McPherson	41 min
May 22, 7:45 PM CDT	Severe Thunderstorm Warning	ABR	Brown, Edmunds, Faulk	30 min
May 22, 7:54 PM CDT	Tornado Warning	ABR	Edmunds, Faulk, Hyde, Potter, Sully, Walworth	51 min
May 22, 8:05 PM CDT	Tornado Warning	ABR	Brown, Edmunds, McPherson	25 min
May 22, 8:14 PM CDT	Severe Thunderstorm Warning	ABR	Brown, Edmunds, Faulk, Spink	46 min
May 22, 8:21 PM CDT	Tornado Warning	ABR	Faulk, Hand, Hyde, Spink	54 min
May 22, 8:28 PM CDT	Tornado Warning	ABR	Brown, Edmunds, McPherson	47 min
May 22, 8:48 PM CDT	Severe Thunderstorm Warning	ABR	Potter, Sully	27 min
May 22, 8:55 PM CDT	Flash Flood Warning	ABR	Brown, Edmunds, Faulk, McPherson, Marshall, Spink	3 hr
May 22, 9:02 PM CDT	Severe Thunderstorm Warning	ABR	Brown, Day, Edmunds, Faulk, Hand, McPherson and 2 more	58 min
May 22, 9:15 PM CDT	Severe Thunderstorm Warning	ABR	Buffalo, Hand, Hughes, Hyde, Lyman	31 min
May 22, 10:00 PM CDT	Severe Thunderstorm Warning	ABR	Brown, Day, Faulk, Hand, Marshall, Spink	60 min
May 22, 11:49 PM CDT	Severe Thunderstorm Warning	ABR	Day, Marshall, Roberts	71 min
May 23, 2:50 PM CDT	Flash Flood Watch	ABR	Brown, Buffalo, Campbell, Corson, Dewey, Edmunds and 12 more	30 hr
May 23, 2:55 PM CDT	Wind Advisory	ABR	Brown, Buffalo, Campbell, Clark, Codington, Corson and 19 more	30 hr

Nearby

Severe Thunderstorm Warnings in South Dakota, 2010 Every severe thunderstorm warning in 2010

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.