Severe Thunderstorm Warning 252, NWS Rapid City, SD

Issued

Aug 13, 1997, 1:22 PM MDT (19:22 UTC)

Expired

Aug 13, 1997, 2:25 PM MDT

In force

63 min

Issued by

NWS Rapid City, SD

Area

Whole counties

County Pennington County, SD

The Rapid City radar (KUDX), 13 km from the middle of the area, began a volume at 19:21 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.

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.

309 
WUUS1 KRAP 131921 RRA
SVRRAP
SDC103-132025-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE RAPID CITY SD
122 PM MDT WED AUG 13 1997

* SEVERE THUNDERSTORM WARNING FOR
  CENTRAL PENNINGTON COUNTY - WESTERN SOUTH DAKOTA

* UNTIL 225 PM MDT
 
* SOME LOCATIONS AFFECTED
  RAPID CITY THROUGH 150 PM
  BOX ELDER BY 135 PM

* AT 119 PM MDT DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM WITH
  LARGE HAIL OVER WEST RAPID CITY. THE STORM WAS MOVING EAST AT
  10 MPH.
 
LARGE HAIL CAN INJURE YOU. IF YOU ARE OUTSIDE...QUICKLY GET TO A
STRONG BUILDING AWAY FROM WINDOWS. DO NOT RISK SERIOUS INJURY BY
TRYING TO PROTECT PROPERTY.

NWS Rapid City, SD wrote its last area forecast discussion before this severe thunderstorm warning went out at Aug 13, 9:25 AM MDT, 3 hours 57 minutes earlier.

AREA FORECAST DISCUSSION FOR WESTERN SD AND NORTHEASTERN WY
NATIONAL WEATHER SERVICE RAPID CITY SD
925 AM MDT WED AUG 13 1997

I UPDATED NORTHWEST SOUTH DAKOTA FOR MOSTLY CLOUDY INSTEAD OF
INCREASING CLOUDS. WATER VAPOR AND VISIBLE IMAGERY INDICATING DRY
PUNCH MOVING IN FROM WYOMING...SO UPDATED SOUTHWEST SOUTH DAKOTA
FOR PARTLY CLOUDY SKIES AND DROPPED PRECIPITATION CHANCES. NUMEROUS
LITTLE WAVES SHOWING UP IN WATER VAPOR SO WITH HEATING AND
INCREASING INSTABILITY... AFTERNOON CONVECTION A GOOD POSSIBILITY
OVER THE BLACK HILLS AND SOUTHWEST. TEMPERATURES SEEM ON TRACK.

.UNR...NONE.

FRANZEN

In the hours before

SDZ001-002-012>014-024>032-041>044-046-047-049-WYZ054>058-140600-

SEVERE WEATHER OUTLOOK
NATIONAL WEATHER SERVICE RAPID CITY SD
1000 AM MDT (1100 AM CDT) WED AUG 13 1997

THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS THIS AFTERNOON AND
EVENING OVER NORTHEAST WYOMING...THE SOUTHERNN BLACK HILLS...
SOUTHWEST AND SOUTHCENTRAL SOUTH DAKOTA. THE MAIN THREAT FROM THESE
STORMS WILL BE LARGE HAIL.

DISCUSSION...
WITH HEATING AND STRONGER MID LEVEL WINDS MOVING INTO THE AREA...
EXPECT THE INSTABILITY AND WIND SHEAR TO INCREASE THIS AFTERNOON.
THESE FACTORS WILL LIKELY PRODUCE SOME SEVERE THUNDERSTORMS THIS
AFTERNOON AND EVENING.

THUNDERSTORMS WILL INITIALLY DEVELOP OVER NORTHEAST WYOMING AND THE
BLACK HILLS DURING THE MID AFTERNOON HOURS.  THESE STORMS WILL THEN
MOVE SOUTHEAST INTO SOUTHWEST AND SOUTHCENTRAL SOUTH DAKOTA INTO
THE EVENING HOURS. EXPECT THE STORMS TO END BY 10 PM.

FRANZEN

Severe Thunderstorm Warnings in South Dakota, 1997Every severe thunderstorm warning in 1997

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.