Alert archive / South Dakota / Severe Thunderstorm Warnings in 1993

Severe Thunderstorm Warning 8, NWS Sioux Falls, SD

June 7, 1993Minnehaha County, Moody County, South Dakota

NWS Sioux Falls, SD issued this severe thunderstorm warning at Jun 7, 1993, 4:43 PM CDT for Minnehaha County, Moody County, South Dakota. It was in force for 47 min.

The area

The counties it named.

The facts

Issued: Jun 7, 1993, 4:43 PM CDT (21:43 UTC)
Expired: Jun 7, 1993, 5:30 PM CDT
In force: 47 min
Issued by: NWS Sioux Falls, SD
Area: Whole counties

Counties Minnehaha County, SD, Moody County, SD

The nearest sounding before it

Aberdeen, SD (KHON), launched 12:00Z, 9.7 hours before the alert went out and 177 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: 1 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 579 m above ground
0-6 km bulk shear: 64 kt
0-1 km storm-relative helicity: 372 m²/s²
0-3 km storm-relative helicity: 509 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 1.5

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.

In the hours before

Special weather statement, Jun 7, 3:50 PM CDT, 53 minutes before

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Special weather statement, Jun 7, 3:51 PM CDT, 52 minutes before

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Special weather statement, Jun 7, 4:20 PM CDT, 23 minutes before

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Special weather statement, Jun 7, 4:20 PM CDT, 23 minutes before

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Special weather statement, Jun 7, 4:38 PM CDT, 5 minutes before

SDZALL-072240-

SPECIAL WEATHER STATEMENT AND RADAR SUMMARY
NATIONAL WEATHER SERVICE HURON SD
438 PM CDT MON JUN 7 1993

...TORNADO WATCH FOR SOUTHEAST...EAST CENTRAL...NORTH CENTRAL AND NORTHEAST
SOUTH DAKOTA UNTIL 8PM CDT...

AT 330 PM CDT...NUMEROUS VERY STRONG THUNDERSTORMS...WITH BRIEF HEAVY RAIN
AND STRONG GUSTY WINDS CONTINUED OVER NORTHEAST THROUGH SOUTHEAST SOUTH
DAKOTA.

THE STRONGEST THUNDERSTORMS WERE OVER SOUTHEAST SOUTH DAKOTA...FROM
SIOUX FALLS TO 25 MILES SOUTHWEST OF BROOKINGS.

A LINE OF THUNDERSTORMS STRETCHED FROM 15 MILES SOUTH OF SIOUX FALLS
TO ABERDEEN.

THESE THUNDERSTORMS WERE MOVING TO THE NORTH AT 45 MILES AN HOUR.
THESE ARE DANGEROUS THUNDERSTORMS.  NUMEROUS REPORTS OF TORNADOES AND
FUNNELS HAVE BEEN RECEIVED FROM THESE STORMS.

IF YOU FIND YOURSELF IN THE PATH OF ONE OF THESE STORMS SEEK SHELTER
IMMEDIATELY IN A REINFORCED SHELTER.

STOREY

Special weather statement, Jun 7, 4:38 PM CDT, 5 minutes before

SDZALL-072240-

SPECIAL WEATHER STATEMENT AND RADAR SUMMARY
NATIONAL WEATHER SERVICE HURON SD
438 PM CDT MON JUN 7 1993

...TORNADO WATCH FOR SOUTHEAST...EAST CENTRAL...NORTH CENTRAL AND NORTHEAST
SOUTH DAKOTA UNTIL 8PM CDT...

AT 330 PM CDT...NUMEROUS VERY STRONG THUNDERSTORMS...WITH BRIEF HEAVY RAIN
AND STRONG GUSTY WINDS CONTINUED OVER NORTHEAST THROUGH SOUTHEAST SOUTH
DAKOTA.

THE STRONGEST THUNDERSTORMS WERE OVER SOUTHEAST SOUTH DAKOTA...FROM
SIOUX FALLS TO 25 MILES SOUTHWEST OF BROOKINGS.

A LINE OF THUNDERSTORMS STRETCHED FROM 15 MILES SOUTH OF SIOUX FALLS
TO ABERDEEN.

THESE THUNDERSTORMS WERE MOVING TO THE NORTH AT 45 MILES AN HOUR.
THESE ARE DANGEROUS THUNDERSTORMS.  NUMEROUS REPORTS OF TORNADOES AND
FUNNELS HAVE BEEN RECEIVED FROM THESE STORMS.

IF YOU FIND YOURSELF IN THE PATH OF ONE OF THESE STORMS SEEK SHELTER
IMMEDIATELY IN A REINFORCED SHELTER.

STOREY

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 7, 1:06 AM CDT	Severe Thunderstorm Warning	FSD	Clay, Yankton	54 min
Jun 7, 2:02 AM CDT	Severe Thunderstorm Warning	FSD	Lincoln, Turner	43 min
Jun 7, 5:33 PM CDT	Severe Thunderstorm Warning	FSD	Rock	42 min
Jun 7, 5:54 PM CDT	Severe Thunderstorm Warning	FSD	Pipestone	41 min
Jun 7, 5:59 PM CDT	Tornado Warning	FSD	Rock	36 min
Jun 7, 6:40 PM CDT	Tornado Warning	FSD	Nobles	35 min
Jun 7, 3:52 AM CDT	Severe Thunderstorm Warning	FSD	Osceola	38 min
Jun 7, 4:21 AM CDT	Severe Thunderstorm Warning	FSD	Plymouth	19 min
Jun 7, 4:35 AM CDT	Severe Thunderstorm Warning	FSD	Cherokee	40 min
Jun 7, 4:50 AM CDT	Severe Thunderstorm Warning	FSD	O'Brien	25 min
Jun 7, 5:33 PM CDT	Severe Thunderstorm Warning	FSD	Lyon	32 min
Jun 7, 6:34 PM CDT	Tornado Warning	FSD	O'Brien	26 min
Jun 7, 6:39 PM CDT	Tornado Warning	FSD	O'Brien	21 min
Jun 7, 6:44 PM CDT	Tornado Warning	FSD	Lyon, Sioux	21 min
Jun 7, 6:50 PM CDT	Tornado Warning	FSD	Osceola	25 min

Nearby

Severe Thunderstorm Warnings in South Dakota, 1993 Every severe thunderstorm warning in 1993

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.