Severe Thunderstorm Warning 124, NWS Aberdeen, SD

Issued

Jul 28, 2002, 9:11 PM CDT (02:11 UTC)

Expired

Jul 28, 2002, 10:00 PM CDT

In force

49 min

Issued by

NWS Aberdeen, SD

Area

Counties, with a storm outline in the text

Counties Brown County, SD, Edmunds County, SD

The Aberdeen radar (KABR), 11 km from the middle of the area, began a volume at 02:13 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.

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.

807 
WUUS53 KABR 290211
SVRABR
SDC013-045-290300-
/NEW.KABR.SV.W.0199.290211-290300/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE ABERDEEN SD
911 PM CDT SUN JUL 28 2002

THE NATIONAL WEATHER SERVICE IN ABERDEEN HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  EDMUNDS COUNTY IN NORTH CENTRAL SOUTH DAKOTA
  BROWN COUNTY IN NORTHEAST SOUTH DAKOTA

* UNTIL 1000 PM CDT

* AT 911 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM 3 MILES NORTH OF MINA...OR ABOUT 12 MILES WEST
  OF ABERDEEN...MOVING EAST AT 25 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  RICHMOND LAKE REC AREA AROUND 920 PM CDT
  ABERDEEN AROUND 935 PM CDT
  BATH AROUND 950 PM CDT
  STRATFORD AROUND 955 PM CDT

THIS STORM HAS A HISTORY OF PRODUCING 3/4 INCH HAIL. 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 4559 9881 4542 9887 4526 9818 4550 9810

TDK

NWS Aberdeen, SD wrote its last area forecast discussion before this severe thunderstorm warning went out at Jul 28, 3:25 PM CDT, 5 hours 46 minutes earlier.

AREA FORECAST DISCUSSION FOR CENTRAL/N-EAST SD AND W-CENTRAL MN
NATIONAL WEATHER SERVICE ABERDEEN SD
325 PM CDT SUN JUL 28 2002

S/WS MOVG THROUGH ALONG WITH WAA...GOOD INSTABILITY AND MOISTURE
WILL CONTINUE TO BRING TSRAS TO MAINLY NE SD AND WC MN THIS EVENING.
SOME TSRAS IN ND COULD DROP INTO NC SD THIS EVENING. OTHERWISE...AS
THE PRECIP MOVES EAST LATER THIS EVENING SKIES WILL GO CLEAR TO P/C
ACROSS THE CWA. TEMPS SHOULD COOL OFF PRETTY GOOD TONIGHT WITH NOT
MUCH FOR WIND LATER AND CLOUDS. THE MDLS SHOW ZONAL FLOW ACROSS THE
CWA ON MON AND TUES WITH FAIRLY LOW MEAN RH. MONDAY LOOKS TO BE DRY
ACROSS THE CWA WITH W TO NW WINDS AND LOWER HUMIDITY. MON AND TUES
TEMPS SHOULD BE FAIRLY SIMILAR IN THE MID 80S TO LOWER 90S ACROSS
THE CWA. THE ETA AND AVN SHOW A S/W SLIDING ACROSS THE REGION TUES
AND TUES EVENING. ALTHOUGH THE AVN IS THE ONLY ONE WITH ANY QPF WITH
IT. WILL LEAVE TUES DRY FOR NOW. THE NEXT CHANCE OF PRECIP WILL COME
ON WED AND WED NIGHT AS THE AVN SHOWS A STRONG S/W SLIDING ACROSS TO
THE NORTH OF THE CWA AND PUSHING A COLD FRONT SOUTH ACROSS THE CWA
WED AFTN AND EVENING.

.EXTENDED DISCUSSION...

AVN PAINTS A MORE AMPLIFIED PICTURE THAN DOES THE CANADIAN AND ECMWF
FOR MIDDLE OF THE WEEK. AVN SEPARATES PIECE OF ENERGY IN WEST COAST
TROF AND PUSHES ENERGY ACROSS INTERNATIONAL BORDER. ASSOCIATED
SURFACE COLD FRONT PROGGED TO PUSH CLEAR THROUGH CWA SO THAT
THURSDAY AND FRIDAY WOULD BE DRY HIGH PRESSURE DOMINATED DAYS. THEN
REINTRODUCE A FLAT RIDGE OVER CENTRAL US THAT PERSISTS UNTIL UPPER
LEVEL DISTURBANCE RIDES DOWN LEE-SIDE OF RIDGE IN THE TAIL END OF
THE EXTENDED. ECMWF IS MUCH MORE RESERVED WITH ONLY A HINT OF A
SURFACE FRONT SLIDING SOUTH AND BECOMING STATIONARY ACROSS CWA
THROUGH SATURDAY OF THE EXTENDED. ENSEMBLE PRECIP MEANS OF THE AVN
EXT LOOK TO COINCIDE MORE WITH THE ECMWF SOLUTION THAN ITS OWN
SOLUTION. NOT MUCH CONFIDENCE IN THIS PACKAGE...SO WILL KEEP PRECIP
OUT FOR NOW AND STICK SOMEWHAT CLOSE TO MEX GUIDANCE THIS TIME
AROUND.

.ABR...NONE

MOHR/DORN

In the hours before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE ABERDEEN, SD
904 PM CDT SUN JUL 28 2002

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

0832 PM    LEOLA                     SD   .75 INCH HAIL
07/28/02   MCPHERSON

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

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.