Alert archive / South Dakota / Severe Thunderstorm Warnings in 1999

Severe Thunderstorm Warning 74, NWS Sioux Falls, SD

June 5, 1999Beadle County, South Dakota

NWS Sioux Falls, SD issued this severe thunderstorm warning at Jun 5, 1999, 10:56 PM CDT for Beadle County, South Dakota. It was in force for 49 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: Jun 5, 1999, 10:56 PM CDT (03:56 UTC)
Expired: Jun 5, 1999, 11:45 PM CDT
In force: 49 min
Issued by: NWS Sioux Falls, SD
Area: Whole counties

County Beadle County, SD

The radar

The Aberdeen radar (KABR), 116 km from the middle of the area, began a volume at 03:55 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
Jun 5, 4:15 PM CDT	Tornado Watch	SPC	7 hr
Jun 5, 9:00 PM CDT	Tornado Watch	SPC	5 hr

The nearest sounding before it

Aberdeen, SD (KABR), launched 00:00Z, 3.9 hours before the alert went out and 55 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: 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 Sioux Falls, SD wrote its last area forecast discussion before this severe thunderstorm warning went out at Jun 5, 9:35 PM CDT, 1 hour 21 minutes earlier.

Area forecast discussion, Jun 5, 9:35 PM CDT, 1 hour 21 minutes before

AREA FORECAST DISCUSSION FOR SOUTHEAST SD/SOUTHWEST MN/NORTHWEST IA
NATIONAL WEATHER SERVICE SIOUX FALLS SD
935 PM CDT SAT JUN 5 1999

SEVERE THUNDERSTORMS CONTINUE TO BE THREAT FOR THE CWA TONIGHT...
EXCEPT I DROPPED THE TWO NE CWA COUNTIES AND WOODBURY AND IDA IN
NORTHWEST IA FROM THE NEW WATCH.  UPDATED ZONES TO REFLECT TORNADO
WATCH 396.  WILL HAVE TO UPDATE AROUND 10 PM TO DROP THE FLASH
FLOODING WHICH OCCURRED EARLIER IN SEVERAL NORTHWEST IA COUNTIES.

.FSD...NONE
UMLAND

In the hours before

Local storm report, Jun 5, 10:15 PM CDT, 41 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SIOUX FALLS SD
1015 PM CDT SAT JUN 05 1999

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

0449 PM    JEFFERSON                 SD    1.75 INCH HAIL
06/05/99   UNION

0449 PM    JEFFERSON                 SD    2.75 INCH HAIL
06/05/99   UNION                           40 CARS DAMAGED...
                                           WINDOWS AND SKYLIGHTS
                                           BROKEN

0450 PM    NORTH SIOUX CITY          SD    58 MPH TSTM GUST
06/05/99   UNION

0515 PM    7 SW CRAIG                IA    TORNADO
06/05/99   PLYMOUTH

0516 PM    9 WNW LE MARS             IA    1.75 INCH HAIL
06/05/99   PLYMOUTH

0600 PM    5 W YANKTON               SD    .75 INCH HAIL
06/05/99   YANKTON

0604 PM    PRIMGHAR                  IA    2.75 INCH HAIL
06/05/99   OBRIEN

0610 PM    4 NW YANKTON              SD    .75 INCH HAIL
06/05/99   YANKTON

0610 PM    2 SSE PRIMGHAR            IA    65 MPH TSTM GUST
06/05/99   OBRIEN

0612 PM    PAULLINA                  IA    TORNADO
06/05/99   OBRIEN

0612 PM    PRIMGHAR                  IA    1.75 INCH HAIL
06/05/99   OBRIEN

0613 PM    2 E PAULLINA              IA    TORNADO
06/05/99   OBRIEN

0646 PM    ROYAL                     IA    60 MPH TSTM GUST
06/05/99   CLAY

0650 PM    8 W MONROE                SD    1.5 INCH HAIL
06/05/99   TURNER

0653 PM    (3SE)SPENCER MUNI ARPT    IA    62 MPH TSTM GUST
06/05/99   CLAY

0653 PM    SPENCER                   IA    67 MPH TSTM GUST
06/05/99   CLAY

0706 PM    MONTROSE                  SD    60 MPH TSTM GUST
06/05/99   MCCOOK

0723 PM    8 SSW MADISON             SD    1 INCH HAIL
06/05/99   LAKE

0734 PM    8 SSW MADISON             SD    1.25 INCH HAIL
06/05/99   LAKE

0925 PM    11 S BURKE                SD    .88 INCH HAIL
06/05/99   GREGORY

1014 PM    4 N WOLSEY                SD    .75 INCH HAIL
06/05/99   BEADLE

Local storm report, Jun 5, 10:15 PM CDT, 41 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SIOUX FALLS SD
1015 PM CDT SAT JUN 05 1999

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

0449 PM    JEFFERSON                 SD    1.75 INCH HAIL
06/05/99   UNION

0449 PM    JEFFERSON                 SD    2.75 INCH HAIL
06/05/99   UNION                           40 CARS DAMAGED...
                                           WINDOWS AND SKYLIGHTS
                                           BROKEN

0450 PM    NORTH SIOUX CITY          SD    58 MPH TSTM GUST
06/05/99   UNION

0515 PM    7 SW CRAIG                IA    TORNADO
06/05/99   PLYMOUTH

0516 PM    9 WNW LE MARS             IA    1.75 INCH HAIL
06/05/99   PLYMOUTH

0600 PM    5 W YANKTON               SD    .75 INCH HAIL
06/05/99   YANKTON

0604 PM    PRIMGHAR                  IA    2.75 INCH HAIL
06/05/99   OBRIEN

0610 PM    4 NW YANKTON              SD    .75 INCH HAIL
06/05/99   YANKTON

0610 PM    2 SSE PRIMGHAR            IA    65 MPH TSTM GUST
06/05/99   OBRIEN

0612 PM    PAULLINA                  IA    TORNADO
06/05/99   OBRIEN

0612 PM    PRIMGHAR                  IA    1.75 INCH HAIL
06/05/99   OBRIEN

0613 PM    2 E PAULLINA              IA    TORNADO
06/05/99   OBRIEN

0646 PM    ROYAL                     IA    60 MPH TSTM GUST
06/05/99   CLAY

0650 PM    8 W MONROE                SD    1.5 INCH HAIL
06/05/99   TURNER

0653 PM    (3SE)SPENCER MUNI ARPT    IA    62 MPH TSTM GUST
06/05/99   CLAY

0653 PM    SPENCER                   IA    67 MPH TSTM GUST
06/05/99   CLAY

0706 PM    MONTROSE                  SD    60 MPH TSTM GUST
06/05/99   MCCOOK

0723 PM    8 SSW MADISON             SD    1 INCH HAIL
06/05/99   LAKE

0734 PM    8 SSW MADISON             SD    1.25 INCH HAIL
06/05/99   LAKE

0925 PM    11 S BURKE                SD    .88 INCH HAIL
06/05/99   GREGORY

1014 PM    4 N WOLSEY                SD    .75 INCH HAIL
06/05/99   BEADLE

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 5, 7:19 PM CDT	Severe Thunderstorm Warning	FSD	Lake	31 min
Jun 5, 7:46 PM CDT	Tornado Warning	FSD	Kingsbury, Miner	34 min
Jun 5, 9:16 PM CDT	Tornado Warning	FSD	Gregory	44 min
Jun 5, 9:25 PM CDT	Severe Thunderstorm Warning	FSD	Beadle	35 min
Jun 5, 10:15 PM CDT	Severe Thunderstorm Warning	FSD	Beadle, Jerauld	45 min
Jun 5, 7:12 PM CDT	Flash Flood Warning	FSD	Clay, Dickinson, O'Brien, Osceola	3 hr
Jun 5, 7:12 PM CDT	Flash Flood Warning	FSD	Sioux	3 hr
Jun 5, 7:51 PM CDT	Severe Thunderstorm Warning	FSD	Lincoln	19 min

Nearby

Severe Thunderstorm Warnings in South Dakota, 1999 Every 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.