Alert archive / South Dakota / Severe Thunderstorm Warnings in 1993
Severe Thunderstorm Warning 13, NWS Aberdeen, SD
NWS Aberdeen, SD issued this severe thunderstorm warning at Jun 12, 1993, 6:20 PM CDT for Sully County, South Dakota. It was in force for 25 min.
The area
The counties it named.
The facts
- Issued
- Jun 12, 1993, 6:20 PM CDT (23:20 UTC)
- Expired
- Jun 12, 1993, 6:45 PM CDT
- In force
- 25 min
- Issued by
- NWS Aberdeen, SD
- Area
- Whole counties
County Sully County, SD
The nearest sounding before it
Aberdeen, SD (KHON), launched 12:00Z, 11.3 hours before the alert went out and 138 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
- 650 J/kg
- Mixed-layer CIN
- -180 J/kg
- Mixed-layer LCL
- 1125 m above ground
- 0-6 km bulk shear
- 22 kt
- 0-1 km storm-relative helicity
- 110 m²/s²
- 0-3 km storm-relative helicity
- 173 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.4
The text
As transmitted, in the capitals the NWS used until 2016.
000
TTAA00 KHON 122320 RRA
SVRHON
SDC119-122345-
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE HURON SD
620 PM CDT SAT JUN 12 1993
THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM
WARNING EFFECTIVE UNTIL 645 PM CDT FOR PEOPLE IN THE FOLLOWING
COUNTY
IN THE CENTRAL PART OF SOUTH DAKOTA
SULLY
THIS WARNING INCLUDES THE ADJACENT WATERS OF THE MISSOURI RIVER.
SOME OF THE COMMUNITIES INCLUDED IN THIS WARNING ARE ONIDA AND
AGAR
AT 615 PM CDT RADAR INDICATED A SEVERE THUNDERSTORM
HAD DEVELOPED OVER EXTREME EASTERN STANLEY COUNTY. THE THUNDERSTORM
WILL BE MOVING IN SUNNLY COUNTY SHORTLY. THE THUNDERSTORM WAS
MOVING NORTHEAST AT 30 MILES AN HOUR.
IF YOU ARE IN THE PATH OF THIS STORM...YOU SHOULD GET TO A REINFORCED
SHELTER. A SEVERE THUNDERSTORM CAN PRODUCE DAMAGING WINDS IN EXCESS
OF 55 MPH...3/4 INCH HAIL OR LARGER...DEADLY LIGHTNING AND VERY
HEAVY RAIN THAT CAN QUICKLY FLOOD A LOW LYdING AREA.
MILLERWhat 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 12, 3:40 PM CDT, 2 hours 40 minutes before
SDZ003-122100- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ABERDEEN SD 340 PM CDT SAT JUN 12 1993 ...THUNDERSTORMS DEVELOPING ALONG THE MISSOURI RIVER... THUNDERSTORMS HAVE STARTED TO DEVELOPE ALONG AND WEST OF THE MISSOURI RIVER ACCORDING TO CURRENT RADAR INFORMATION. THESE STORMS...SOME HAVING HEAVY RAIN AND SMALL HAIL...ARE EXPECTED TO MOVE TO THE NORTHEAST. THESE STORMS WILL BE A PROBLEM FOR BOATERS ON THE OAHE FROM 35 NORTH OF PIERRE TO THE NORTH DAKOTA STATE LINE NORTH OF POLLOCK. REMEMBER...SOME OF THESE STORMS COULD DEVELOPE RAPIDLY INTO A SEVERE WEATHER SITUATION...SO PLEASE KEEP AN EYE TO THE SKY AND STAY TUNED TO YOUR LOCAL RADIO OR T.V. FOR ADDITIONAL INFORMATION STUDNICKA
Special weather statement, Jun 12, 3:43 PM CDT, 2 hours 37 minutes before
SDZ003-122100- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ABERDEEN SD 340 PM CDT SAT JUN 12 1993 ...THUNDERSTORMS DEVELOPING ALONG THE MISSOURI RIVER... THUNDERSTORMS HAVE STARTED TO DEVELOPE ALONG AND WEST OF THE MISSOURI RIVER ACCORDING TO CURRENT RADAR INFORMATION. THESE STORMS...SOME HAVING HEAVY RAIN AND SMALL HAIL...ARE EXPECTED TO MOVE TO THE NORTHEAST. THESE STORMS WILL BE A PROBLEM FOR BOATERS ON THE OAHE FROM 35 NORTH OF PIERRE TO THE NORTH DAKOTA STATE LINE NORTH OF POLLOCK. REMEMBER...SOME OF THESE STORMS COULD DEVELOPE RAPIDLY INTO A SEVERE WEATHER SITUATION...SO PLEASE KEEP AN EYE TO THE SKY AND STAY TUNED TO YOUR LOCAL RADIO OR T.V. FOR ADDITIONAL INFORMATION STUDNICKA
The office that day
Everything else NWS Aberdeen, SD issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 11, 7:12 PM CDT | Severe Thunderstorm Warning | ABR | Hughes, Sully | 63 min |
| Jun 11, 8:41 PM CDT | Tornado Warning | ABR | Lyman | 14 min |
| Jun 11, 9:11 PM CDT | Severe Thunderstorm Warning | ABR | Hughes | 49 min |
| Jun 11, 10:35 PM CDT | Severe Thunderstorm Warning | ABR | Lyman | 40 min |
| Jun 12, 12:08 AM CDT | Severe Thunderstorm Warning | ABR | Miner | 112 min |
| Jun 12, 4:22 PM CDT | Severe Thunderstorm Warning | ABR | Campbell, Corson, Walworth | 68 min |
| Jun 12, 6:33 PM CDT | Severe Thunderstorm Warning | ABR | Campbell | 57 min |
| Jun 12, 6:49 PM CDT | Severe Thunderstorm Warning | ABR | Potter | 56 min |
Nearby
Severe Thunderstorm Warnings in South Dakota, 1993Every 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.