Alert archive / South Dakota / Severe Thunderstorm Warnings in 2001
Severe Thunderstorm Warning 159, NWS Aberdeen, SD
NWS Aberdeen, SD issued this severe thunderstorm warning at Jul 23, 2001, 12:41 AM CDT for Day County, Roberts County, South Dakota. It was in force for 64 min. 2 reports 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
- Jul 23, 2001, 12:41 AM CDT (05:41 UTC)
- Expired
- Jul 23, 2001, 1:45 AM CDT
- In force
- 64 min
- Issued by
- NWS Aberdeen, SD
- Area
- Whole counties
Counties Day County, SD, Roberts County, SD
The radar
The Aberdeen radar (KABR), 89 km from the middle of the area, began a volume at 05:43 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
| Time | Report | Where | Remark |
|---|---|---|---|
| Jul 23, 12:45 AM CDT | Thunderstorm Wind 56 E | Grenville, SD | Many large tree branches were downed by the high winds. |
| Jul 23, 1:40 AM CDT | Hail 0.75 | Corona, SD |
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 nearest sounding before it
Aberdeen, SD (KABR), launched 00:00Z, 5.7 hours before the alert went out and 110 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.
- Mixed-layer CAPE
- 2747 J/kg
- Mixed-layer CIN
- -53 J/kg
- Mixed-layer LCL
- 1276 m above ground
- 0-6 km bulk shear
- 41 kt
- 0-1 km storm-relative helicity
- 82 m²/s²
- 0-3 km storm-relative helicity
- 137 m²/s²
- Significant tornado parameter
- 1.5
- Supercell composite
- 13.2
The text
As transmitted, in the capitals the NWS used until 2016.
844
WUUS53 KABR 230541
SVRABR
SDC037-109-230645-
/NEW.KABR.SV.W.0235.230541-230645/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE ABERDEEN SD
1241 AM CDT MON JUL 23 2001
THE NATIONAL WEATHER SERVICE IN ABERDEEN HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
DAY COUNTY IN NORTHEAST SOUTH DAKOTA
ROBERTS COUNTY IN NORTHEAST SOUTH DAKOTA
* UNTIL 145 AM CDT
* AT 1241 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
LINE OF SEVERE THUNDERSTORMS FROM 5 MILES NORTHEAST OF PICKEREL
LAKE STATE PARK TO 10 MILES SOUTHWEST OF GRENVILLE...OR FROM 11
MILES SOUTHWEST OF SISSETON TO 4 MILES NORTHWEST OF WEBSTER...
MOVING EAST AT 25 MPH.
* SEVERE THUNDERSTORMS WILL BE NEAR...
PICKEREL LAKE STATE PARK AROUND 1250 AM CDT
WAUBAY WILDLIFE REFUGE AROUND 100 AM CDT
PEEVER...RUDEBUSCH CORNER AROUND 125 AM CDT
IF SEVERE WEATHER APPROACHES YOUR AREA...GO INSIDE A STURDY SHELTER
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 4566 9684 4563 9703 4562 9723 4556 9723
4556 9737 4547 9750 4536 9772 4539 9741
4540 9713 4542 9699 4548 9691 4551 9681
4555 9679 4559 9685
TDKWhat 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 Jul 22, 10:00 PM CDT, 2 hours 41 minutes earlier.
Area forecast discussion, Jul 22, 10:00 PM CDT, 2 hours 41 minutes before
AREA FORECAST DISCUSSION FOR CENTRAL/NORTHCENTRAL AND NORTHEAST SOUTH DAKOTA AND WEST CENTRAL MINNESOTA NATIONAL WEATHER SERVICE ABERDEEN SD 10 PM CDT SUN JUL 22 2001 ONE DECENT STORM HAS MOVED INTO MINNESOTA. MORE APPROACHING FROM WEST...HOWEVER CONCUR WITH SPC THAT ACTIVITY OVER CENTRAL SECTIONS OF STATE WILL PROBABLY BE ON THE WANE OVER THE NEXT COUPLE HOURS. WILL UPDATE AS WATCH IS DROPPED OTHERWISE NO OTHER UPDATES PLANNED. e .ABR...NONE. TDK
In the hours before
Local storm report, Jul 22, 8:43 PM CDT, 3 hours 58 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE ABERDEEN, SD
843 PM CDT SUN JUL 22 2001
TIME(CDT) .....CITY LOCATION.....STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0736 PM 3 S FLORENCE SD 1.00 INCH HAIL
07/22/01 CODINGTON REPORTED BY
SPOTTERS
0833 PM 1 W WAVERLY SD .75 INCH HAIL
07/22/01 CODINGTON REPORTED BY
SPOTT{ERS
0815 PM 11/2 NE RAUVILLE SD 1.50 INCH HAIL
07/22/01 CODINGTON REPORTED BY
SPOTTERS
GNSpecial weather statement, Jul 22, 9:52 PM CDT, 2 hours 49 minutes before
MNZ039-046-SDZ007-008-011-018>023-230315- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ABERDEEN SD 952 PM CDT SUN JUL 22 2001 ...SEVERE THUNDERSTORM WATCH NUMBER 610 HAS BEEN CANCELLED FOR ALL OF NORTHEAST SOUTH DAKOTA... ...SEVERE THUNDERSTORM WATCH 610 HAS ALSO BEEN CANCELLED FOR TRAVERSE AND BIG STONE COUNTIES IN MINNESOTA. THE THREAT OF WIDESPREAD SEVERE WEATHER HAS ENDED OVER THE REGION AND THEREFORE THE WATCH HAS BEEN CANCELLED. MORE STORMS WILL BE POSSIBLE OVERNIGHT...BUT THE THREAT OF SEVERE WEATHER APPEARS TO BE MINIMAL. FOR ADDITIONAL WEATHER INFORMATION, CHECK OUR WEB SITE AT HTTP://WWW.CRH.NOAA.GOV/ABR OR AT HTTP://WEATHER.GOV. TDK 9
The office that day
Everything else NWS Aberdeen, SD issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 22, 7:36 PM CDT | Severe Thunderstorm Warning | ABR | Codington | 24 min |
| Jul 22, 8:00 PM CDT | Severe Thunderstorm Warning | ABR | Codington | 45 min |
| Jul 23, 12:31 AM CDT | Severe Thunderstorm Warning | ABR | Jones, Stanley | 29 min |
Nearby
Severe Thunderstorm Warnings in South Dakota, 2001Every severe thunderstorm warning in 2001
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.