Alert archive / South Dakota / Severe Thunderstorm Warnings in 1999

Severe Thunderstorm Warning 39, NWS Aberdeen, SD

June 5, 1999Buffalo County, South Dakota

NWS Aberdeen, SD issued this severe thunderstorm warning at Jun 5, 1999, 9:48 PM CDT for Buffalo County, South Dakota. It was in force for 47 min. 1 report came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued
Jun 5, 1999, 9:48 PM CDT (02:48 UTC)
Expired
Jun 5, 1999, 10:35 PM CDT
In force
47 min
Issued by
NWS Aberdeen, SD
Area
Whole counties

County Buffalo County, SD

The radar

The Aberdeen radar (KABR), 166 km from the middle of the area, began a volume at 02:49 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 5, 10:07 PM CDTThunderstorm Wind 61Gann Vly, SDWinds gusting to 70 mph caused a lot of tree damage in GannValley.

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.

The watch it was issued in

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

IssuedProductOfficeLasted
Jun 5, 4:15 PM CDTTornado WatchSPC7 hr
Jun 5, 9:00 PM CDTTornado WatchSPC5 hr

The nearest sounding before it

Aberdeen, SD (KABR), launched 00:00Z, 2.8 hours before the alert went out and 112 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 1999-06-06Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 724 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Aberdeen, SD at 00:00Z on 1999-06-06The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -15 square meters per square second.1939587897117Sfc1 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
724 J/kg
Mixed-layer CIN
-60 J/kg
Mixed-layer LCL
1560 m above ground
0-6 km bulk shear
60 kt
0-1 km storm-relative helicity
-15 m²/s²
0-3 km storm-relative helicity
156 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.1

Open this sounding in Storm Lab

The text

The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.

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 5, 9:15 PM CDT, 33 minutes earlier.

Area forecast discussion, Jun 5, 9:15 PM CDT, 33 minutes before
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In the hours before

Local storm report, Jun 5, 3:54 PM CDT, 5 hours 54 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE  ABERDEEN SD
354 PM CDT SAT JUN 5 1999

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

0930 PM    MURDO                     SD   60 MPH WIND GUST
06/04/99   JONES

1125 PM    4E CANNING                SD   60 MPH WIND GUST
06/04/99   HUGHES                         DIME TO NICKLE SIZE HAIL

0135 AM    WATERTOWN                 SD   71 MPH WIND GUST
06/05/99   CODINGTON                      70 FOOT PINES TREES DOWN

0155 AM    CLEAR LAKE                SD   60 MPH WIND GUST
06/05/99   DEUEL                          BIG TREE BLOWN DOWN OVER
                                          ROAD

0230 AM    ORTONVILLE                MN   80 MPH WIND GUST
06/05/99   BIG STONE                      4 GRAIN BINS GONE.
                                          BARRELS THROWN 100 YARDS
                                          WITHOUT TOUCHING THE
                                          GROUND

ECKBERG
Special weather statement, Jun 5, 4:40 PM CDT, 5 hours 8 minutes before
SDZ019>023-045-048-051-060400-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE ABERDEEN SD
439 PM CDT (339 PM MDT) SAT JUN 5 1999

...TORNADO WATCH IS IN EFFECT UNTIL 11PM CDT/ 10PM MDT...

A TORNADO WATCH IS IN EFFECT FOR PORTIONS OF CENTRAL AND NORTHEAST
SOUTH DAKOTA UNTIL 11PM CDT/10PM MDT. THE FOLLOWING COUNTIES
ARE IN THE WATCH...JONES...LYMANN...BUFFALO...CLARK...CODINGTON...
HAMLIN...GRANT...AND DEUEL.

SHOWERS AND THUNDERSTORMS WILL DEVELOP ACROSS WESTERN SOUTH DAKOTA
AND WESTERN NEBRASKA AND THEN MOVE NORTHEAST INTO THE REGION TONIGHT.
SOME OF THE STORMS MAY PRODUCE DAMAGING WINDS AND LARGE HAIL ALONG
WITH VERY HEAVY RAIN.
Local storm report, Jun 5, 5:26 PM CDT, 4 hours 22 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE  ABERDEEN SD
526 PM CDT SAT JUN 5 1999

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

1010 PM    3 W MURDO                 SD   TORNADO
06/04/99   JONES                          SHERIFF SPOTTED BRIEF
                                          TOUCHDOWN AT REST AREA
                                          WHICH DAMAGED TRAILOR
                                          PART OF SEMI

END

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 5, 7:58 PM CDTTornado WarningABRHamlin32 min
Jun 5, 8:30 PM CDTTornado WarningABRCodington, Hamlin50 min
Jun 5, 8:57 PM CDTSevere Thunderstorm WarningABRJones48 min
Jun 5, 9:06 PM CDTSevere Thunderstorm WarningABRBuffalo49 min
Jun 5, 9:12 PM CDTSevere Thunderstorm WarningABRHand63 min
Jun 5, 9:27 PM CDTSevere Thunderstorm WarningABRStanley63 min
Jun 5, 9:55 PM CDTFlash Flood WarningABRBuffalo4 hr
Jun 5, 9:58 PM CDTSevere Thunderstorm WarningABRHamlin47 min
Jun 5, 10:11 PM CDTSevere Thunderstorm WarningABRCodington49 min
Jun 5, 10:17 PM CDTSevere Thunderstorm WarningABRHand48 min
Jun 6, 1:12 AM CDTSevere Thunderstorm WarningABRRoberts48 min
Jun 6, 2:34 AM CDTSevere Thunderstorm WarningABRCorson61 min
Jun 6, 1:08 AM CDTSevere Thunderstorm WarningABRTraverse42 min

Nearby

Severe Thunderstorm Warnings in South Dakota, 1999Every severe thunderstorm warning in 1999

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.