Alert archive / South Dakota / Severe Thunderstorm Warnings in 2002

Severe Thunderstorm Warning 34, NWS Aberdeen, SD

June 23, 2002Dewey County, South Dakota

NWS Aberdeen, SD issued this severe thunderstorm warning at Jun 23, 2002, 12:45 AM MDT for Dewey County, South Dakota. It was in force for 30 min. 1 report 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 23, 2002, 12:45 AM MDT (06:45 UTC)
Expired: Jun 23, 2002, 1:15 AM MDT
In force: 30 min
Issued by: NWS Aberdeen, SD
Area: Counties, with a storm outline in the text

County Dewey County, SD

The radar

The Bismarck radar (KBIS), 158 km from the middle of the area, began a volume at 06:44 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
Jun 23, 12:52 AM MDT	Hail 1	Timber Lake, SD

NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.

Did it verify

Not verified. The Iowa Environmental Mesonet's Cow found no qualifying storm report inside this severe thunderstorm warning while it was in force. That is not proof nothing happened: reports are thin where few people live.

Cow counts a report within 15 km of the polygon while the warning was in force: a tornado for a tornado warning; hail of 1 inch or more, a gust of 58 mph or more or wind damage for a severe thunderstorm warning; a flash flood report for a flash flood warning.

The nearest sounding before it

Bismarck Municip, ND (KBIS), launched 00:00Z, 6.8 hours before the alert went out and 159 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: 2213 J/kg
Mixed-layer CIN: -133 J/kg
Mixed-layer LCL: 1101 m above ground
0-6 km bulk shear: 34 kt
0-1 km storm-relative helicity: 87 m²/s²
0-3 km storm-relative helicity: 116 m²/s²
Significant tornado parameter: 0.3
Supercell composite: 1.6

Open this sounding in Storm Lab

The text

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

000 
WUUS53 KABR 230645
SVRABR
SDC041-230715-
/NEW.KABR.SV.W.0090.230644-230715/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE ABERDEEN SD
1244 AM MDT SUN JUN 23 2002

THE NATIONAL WEATHER SERVICE IN ABERDEEN HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  DEWEY COUNTY IN NORTH CENTRAL SOUTH DAKOTA

* UNTIL 115 AM MDT

* AT 1244 AM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM 7 MILES NORTHWEST OF WHITE HORSE...OR ABOUT 28
  MILES SOUTHWEST OF MOBRIDGE...MOVING NORTHEAST AT 40 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  TIMBER LAKE AROUND 1250 AM MDT
  PROMISE AROUND 100 AM MDT

IF SEVERE WEATHER APPROACHES YOUR AREA...GO INSIDE A STURDY SHELTER
AWAY FROM WINDOWS.

THIS STORM HAS A HISTORY OF PRODUCING LARGE HAIL AND DAMAGING WIND.
GO INSIDE A STURDY BUILDING AND STAY AWAY FROM WINDOWS.

REPORT SEVERE WEATHER TO THE NEAREST LAW ENFORCEMENT AGENCY. THEY
WILL RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE OFFICE IN
ABERDEEN.

LAT...LON 4537 10114 4511 10081 4545 10041 4547 10125

MARSILI

What forecasters said that day

The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Aberdeen, SD wrote its last area forecast discussion before this severe thunderstorm warning went out at Jun 22, 2:35 PM MDT, 10 hours 10 minutes earlier.

Area forecast discussion, Jun 22, 2:35 PM MDT, 10 hours 10 minutes before

AREA FORECAST DISCUSSION FOR CENTRAL/N-EAST SD AND W-CENTRAL MN
NATIONAL WEATHER SERVICE ABERDEEN SD
335 PM CDT SAT JUN 22 2002

FORECAST PROBLEM TONIGHT WILL CONCERN THUNDERSTORM ACTIVITY ACROSS
CWA. SHT WV MOVG NORTHEAST INTO CWA...WEAKENING CAP. 700 TEMPS
COOLING. PLENTY OF MSTR WITH DP MID 60S SOUTHWEST TO MID 70S
NORTHEAST. PWS IN 1.7 IN RANGE. STORMS ALREADY FORMING WEST
RIVER...EXPECT CONT DEVELOPMENT. ETA SOUNDING SHOWS FRZ LVL
15K...WITH WBZ 14K. COULD BE DIFFICULT GETTING HAIL TO GROUND.

WITH SFC BOUNDARY TO WEST COULD SEE SOME ACTIVITY THROUGH DAY
TOMORROW. NEXT WV WILL MOVE THRU TOMORROW EVENING FOR ANOTHER SPATE
OF STORMS...WITH ACTIVITY ENDING EARLY MON MORNING AS SYSTEM MOVES
OFF TO EAST WITH FLOW TURNING NORTHWEST AS HIGH BLDS IN FROM WEST.

.EXTENDED DISCUSSION...
NOT MUCH WILL CHANGE FOR THE EXTENDED FORECAST AS THE AVN...EXTENDED
AVN AND THE ECMWF SHOW 50H RIDGING BUILDING OVER THE UPPER MIDWEST.
THE S/W MOVG DOWN THE EAST SIDE OF THE RIDGE ON TUES NIGHT SHOULD BE
FAR ENOUGH E TO KEEP ANY PRECIP OUT OF THE EASTERN PART OF THE CWA.
THE EXTENDED AVN WANTS TO BRING A S/W THROUGH THE RIDGE FRI AND FRI
NIGHT BRINGING SOME PRECIP. DONT BELIEVE THIS WILL BE THE CASE AT
THIS POINT AND WILL LEAVE IT DRY THROUGH THE EXTENDED PERIOD FOR
NOW. TEMPS SHOULD BE GENERALLY ABOVE NORMAL THROUGH THIS TIME PERIOD
WITH CLEAR TO PARTLY CLOUDY SKIES.

.ABR...NONE

MARSHALL/MOHR

In the hours before

Local storm report, Jun 22, 8:26 PM MDT, 4 hours 19 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE ABERDEEN, SD
926 PM CDT SAT JUN 22 2002

TIME(CDT)  .....CITY LOCATION.....STATE   ...EVENT/REMARKS...
           ....COUNTY LOCATION....

0855 PM    3ESE STEPHAN              SD   65 MPH TSTM WIND GUST
06/22/02   HYDE                           REPORTED BY GENERAL PUBLIC

0835 PM    3WNW FORT THOMPSON        SD   .75 INCH HAIL
06/22/02   BUFFALO                        REPORTED BY GENERAL PUBLIC

Special weather statement, Jun 22, 9:15 PM MDT, 3 hours 30 minutes before

MNZ039-046-SDZ003>011-015>023-033>037-045-048-051-230345-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE ABERDEEN SD
1015 PM CDT SAT JUN 22 2002

THE SEVERE THUNDERSTORM WATCH #454 WHICH COVERED PORTIONS OF NORTH
AND SOUTH DAKOTA WAS ALLOWED TO EXPIRE AT 10 PM CDT. HOWEVER A VERY
UNSTABLE ENVIRONMENT PERSISTS THIS EVENING. REMAIN VIGILANT AS THE
POTENTIAL FOR RAPIDLY CHANGING WEATHER CONDITIONS CONTINUES THROUGH
THE OVERNIGHT HOURS.

FOR ADDITIONAL WEATHER INFORMATION, CHECK OUR WEB SITE AT
HTTP://WWW.CRH.NOAA.GOV/ABR OR AT HTTP://WEATHER.GOV.

Local storm report, Jun 22, 10:05 PM MDT, 2 hours 40 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE ABERDEEN, SD
1105 PM CDT SAT JUN 22 2002

TIME(CDT)  .....CITY LOCATION.....STATE   ...EVENT/REMARKS...
           ....COUNTY LOCATION....

0618 PM    FT. PIERRE                SD   .75 INCH HAIL
06/22/02   STANLEY                        REPORTED BY GENERAL PUBLIC

0634 PM    PIERRE                    SD   73 MPH TSTM WIND GUST
06/22/02   HUGHES                         REPORTED BY KPIR ASOS

Local storm report, Jun 22, 10:17 PM MDT, 2 hours 28 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE ABERDEEN, SD
1117 PM CDT SAT JUN 22 2002

TIME(CDT)  .....CITY LOCATION.....STATE   ...EVENT/REMARKS...
           ....COUNTY LOCATION....

0735 PM    1W BLUNT                  SD   .75 INCH HAIL
06/22/02   HUGHES                         REPORTED BY GENERAL PUBLIC

0745 PM    1W BLUNT                  SD   .88 INCH HAIL
06/22/02   HUGHES                         REPORTED BY GENERAL PUBLIC

0750 PM    2N PLAINVEW COLONY        SD   .88 INCH HAIL
06/22/02   MCPHERSON                      REPORTED BY GENERAL PUBLIC

0950 PM    1S HIGHMORE               SD   .75 INCH HAIL
06/22/02   HYDE                           REPORTED BY GENERAL PUBLIC

0955 PM    HIGHMORE                  SD   .88 INCH HAIL
06/22/02   HYDE                           REPORTED BY GENERAL PUBLIC

0955 PM    HIGHMORE                  SD   60 MPH TSTM WIND GUST
06/22/02   HYDE                           REPORTED BY GENERAL PUBLIC

0955 PM    5E POLO                   SD   .75 INCH HAIL
06/22/02   HAND                           REPORTED BY GENERAL PUBLIC

1005 PM    1W ONIDA                  SD   .88 INCH HAIL
06/22/02   SULLY                          REPORTED BY GENERAL PUBLIC

1035 PM    4N SAINT LAWRENCE         SD   1.00 INCH HAIL
06/22/02   HAND                           REPORTED BY GENERAL PUBLIC

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 22, 6:08 PM MDT	Severe Thunderstorm Warning	ABR	Hughes	52 min
Jun 22, 6:41 PM MDT	Severe Thunderstorm Warning	ABR	Edmunds, McPherson	64 min
Jun 22, 7:06 PM MDT	Severe Thunderstorm Warning	ABR	Hyde	54 min
Jun 22, 7:24 PM MDT	Severe Thunderstorm Warning	ABR	Buffalo, Hand	66 min
Jun 22, 7:57 PM MDT	Severe Thunderstorm Warning	ABR	Hyde	63 min
Jun 22, 8:30 PM MDT	Severe Thunderstorm Warning	ABR	Hand	60 min
Jun 22, 8:55 PM MDT	Severe Thunderstorm Warning	ABR	Sully	50 min
Jun 22, 8:57 PM MDT	Severe Thunderstorm Warning	ABR	Hyde	63 min
Jun 22, 9:07 PM MDT	Severe Thunderstorm Warning	ABR	Marshall	38 min
Jun 22, 9:29 PM MDT	Severe Thunderstorm Warning	ABR	Hand	31 min
Jun 22, 9:43 PM MDT	Severe Thunderstorm Warning	ABR	Sully	32 min
Jun 22, 11:19 PM MDT	Severe Thunderstorm Warning	ABR	Corson	56 min
Jun 22, 11:41 PM MDT	Severe Thunderstorm Warning	ABR	Dewey	64 min
Jun 23, 1:11 AM MDT	Severe Thunderstorm Warning	ABR	Campbell, Corson, Walworth	49 min
Jun 23, 1:57 AM MDT	Severe Thunderstorm Warning	ABR	Campbell, Walworth	33 min
Jun 23, 4:55 PM MDT	Severe Thunderstorm Warning	ABR	Corson	50 min

Nearby

Severe Thunderstorm Warnings in South Dakota, 2002 Every severe thunderstorm warning in 2002

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.