Alert archive / South Dakota / Severe Thunderstorm Warnings in 1994
Severe Thunderstorm Warning 12, NWS Aberdeen, SD
NWS Aberdeen, SD issued this severe thunderstorm warning at May 23, 1994, 9:56 PM CDT for Brown County, South Dakota. It was in force for 34 min.
The area
The counties it named.
The facts
- Issued
- May 23, 1994, 9:56 PM CDT (02:56 UTC)
- Expired
- May 23, 1994, 10:30 PM CDT
- In force
- 34 min
- Issued by
- NWS Aberdeen, SD
- Area
- Whole counties
County Brown County, SD
The nearest sounding before it
Aberdeen, SD (KHON), launched 00:00Z, 2.9 hours before the alert went out and 77 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
- 1212 J/kg
- Mixed-layer CIN
- -102 J/kg
- Mixed-layer LCL
- 2117 m above ground
- 0-6 km bulk shear
- 35 kt
- 0-1 km storm-relative helicity
- 45 m²/s²
- 0-3 km storm-relative helicity
- 134 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 2.1
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
Local storm report, May 23, 7:21 PM CDT, 2 hours 35 minutes before
STORM REPORT
NATIONAL WEATHER SERVICE ABERDEEN SD
721 PM CDT MON MAY 23 1994
STORM DATA FOR MAY 23 1994
TIME COUNTY..LOCATION CHARACTER OF STORM..DAMAGE
.......................................................................
714 PM CDT ROBERTS...4 MI. WEST GOLFBALL HAIL/DOWNED TREES
OF SISSETON FROM POLICE
OLSON
NNNNLocal storm report, May 23, 7:22 PM CDT, 2 hours 34 minutes before
STORM REPORT
NATIONAL WEATHER SERVICE ABERDEEN SD
721 PM CDT MON MAY 23 1994
STORM DATA FOR MAY 23 1994
TIME COUNTY..LOCATION CHARACTER OF STORM..DAMAGE
.......................................................................
714 PM CDT ROBERTS...4 MI. WEST GOLFBALL HAIL/DOWNED TREES
OF SISSETON FROM POLICE
OLSON
NNNNLocal storm report, May 23, 9:09 PM CDT, 47 minutes before
STORM REPORT
NATIONAL WEATHER SERVICE ABERDEEN SD
909 PM CDT MON MAY 23 1994
STORM DATA FOR MAY 23 1994
TIME COUNTY..LOCATION CHARACTER OF STORM..DAMAGE
.......................................................................
842 PM CDT ROBERTS...5 MI. SE GOLFBALL HAIL 5 TO 6 IN.
OF WILMOT DEEP...1.2" RAIN..HIGH WINDS
BY SPOTTER.
OLSON
NNNNLocal storm report, May 23, 9:10 PM CDT, 46 minutes before
STORM REPORT
NATIONAL WEATHER SERVICE ABERDEEN SD
909 PM CDT MON MAY 23 1994
STORM DATA FOR MAY 23 1994
TIME COUNTY..LOCATION CHARACTER OF STORM..DAMAGE
.......................................................................
842 PM CDT ROBERTS...5 MI. SE GOLFBALL HAIL 5 TO 6 IN.
OF WILMOT DEEP...1.2" RAIN..HIGH WINDS
BY SPOTTER.&
OLSON
NNNNSpecial weather statement, May 23, 9:35 PM CDT, 21 minutes before
SDZ003>011-015>018-240400- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ABERDEEN SD 935 PM CDT MON MAY 23 1994 ...A SEVERE THUNDERSTORM WATCH IN EFFECT FOR PORTIONS OF NORTHEAST SOUTH DAKOTA UNTIL 11 PM CDT... SEVERE THUNDERSTORMS EARLIER THIS EVENING ACROSS MARSHALL AND ROBERTS COUNTIES OF NORTHEAST SOUTH DAKOTA HAVE DIMINISHED. THESE THUNDERSTORMS PRODUCED GOLFBALL SIZE HAIL AND UPROOTED TREES. NO SEVERE WEATHER HAS BEEN INDICATED IN NORTHEAST SOUTH DAKOTA AS OF 930 PM CDT...BUT THUNDERSTORMS WERE BEGINNING TO MOVE INTO THE NORTHERN PORTIONS OF BROWN...MARSHALL AND DAY COUNTIES. MOVEMENT OF THESE SHOWERS AND THUNDERSTORMS HAVE BEEN TO THE SOUTHEAST AT 20 MPH. AT 931 PM CDT THE STRONGEST STORM WAS LOCATED IN NORTHEAST BROWN COUNTY... JUST WEST OF HECLA...OR 30 MILES NORTHEAST OF ABERDEEN. SMALL HAIL... GUSTY WINDS...BRIEF HEAVY RAIN AND DEADLY LIGHTNING ARE POSSIBLE WITH THIS THUNDERSTORM. REMEMBER...A WATCH MEANS CONDITIONS ARE FAVORABLE FOR THE DEVELOPMENT OF THUNDERSTORMS WHICH INCLUDES SEVERE THUNDERSTORMS WITH DAMAGING WINDS...DEADLY LIGHTNING...AND LARGE HAIL. BE PREPARED TO TAKE ACTION TO PROTECT LIFE AND PROPERTY AS THESE STORMS DEVELOP AND APPROACH YOUR AREA. BUCKLEW
Special weather statement, May 23, 9:35 PM CDT, 21 minutes before
SDZ003>011-015>018-240400- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ABERDEEN SD 935 PM CDT MON MAY 23 1994 ...A SEVERE THUNDERSTORM WATCH IN EFFECT FOR PORTIONS OF NORTHEAST SOUTH DAKOTA UNTIL 11 PM CDT... SEVERE THUNDERSTORMS EARLIER THIS EVENING ACROSS MARSHALL AND ROBERTS COUNTIES OF NORTHEAST SOUTH DAKOTA HAVE DIMINISHED. THESE THUNDERSTORMS PRODUCED GOLFBALL SIZE HAIL AND UPROOTED TREES. NO SEVERE WEATHER HAS BEEN INDICATED IN NORTHEAST SOUTH DAKOTA AS OF 930 PM CDT...BUT THUNDERSTORMS WERE BEGINNING TO MOVE INTO THE NORTHERN PORTIONS OF BROWN...MARSHALL AND DAY COUNTIES. MOVEMENT OF THESE SHOWERS AND THUNDERSTORMS HAVE BEEN TO THE SOUTHEAST AT 20 MPH. AT 931 PM CDT THE STRONGEST STORM WAS LOCATED IN NORTHEAST BROWN COUNTY... JUST WEST OF HECLA...OR 30 MILES NORTHEAST OF ABERDEEN. SMALL HAIL... GUSTY WINDS...BRIEF HEAVY RAIN AND DEADLY LIGHTNING ARE POSSIBLE WITH THIS THUNDERSTORM. REMEMBER...A WATCH MEANS CONDITIONS ARE FAVORABLE FOR THE DEVELOPMENT OF THUNDERSTORMS WHICH INCLUDES SEVERE THUNDERSTORMS WITH DAMAGING WINDS...DEADLY LIGHTNING...AND LARGE HAIL. BE PREPARED TO TAKE ACTION TO PROTECT LIFE AND PROPERTY AS THESE STORMS DEVELOP AND APPROACH YOUR AREA. BUCKLEW
The office that day
Everything else NWS Aberdeen, SD issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 23, 7:05 PM CDT | Severe Thunderstorm Warning | ABR | Roberts | 55 min |
| May 23, 7:57 PM CDT | Severe Thunderstorm Warning | ABR | Roberts | 63 min |
| May 23, 8:30 PM CDT | Severe Thunderstorm Warning | ABR | Day, Marshall | 24 min |
| May 23, 10:18 PM CDT | Severe Thunderstorm Warning | ABR | Marshall | 57 min |
| May 23, 10:58 PM CDT | Severe Thunderstorm Warning | ABR | Roberts | 47 min |
| May 23, 10:58 PM CDT | Severe Thunderstorm Warning | ABR | Day | 30 min |
| May 23, 11:46 PM CDT | Severe Thunderstorm Warning | ABR | Grant | 32 min |
| May 23, 11:57 PM CDT | Severe Thunderstorm Warning | ABR | Day | 48 min |
Nearby
Severe Thunderstorm Warnings in South Dakota, 1994Every severe thunderstorm warning in 1994
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.