Alert archive / South Dakota / Severe Thunderstorm Warnings in 1997
Severe Thunderstorm Warning 173, NWS Aberdeen, SD
NWS Aberdeen, SD issued this severe thunderstorm warning at Aug 2, 1997, 4:41 PM CDT for Brown County, Marshall County, South Dakota. It was in force for 59 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
- Aug 2, 1997, 4:41 PM CDT (21:41 UTC)
- Expired
- Aug 2, 1997, 5:40 PM CDT
- In force
- 59 min
- Issued by
- NWS Aberdeen, SD
- Area
- Whole counties
Counties Brown County, SD, Marshall County, SD
The radar
The Aberdeen radar (KABR), 42 km from the middle of the area, began a volume at 21:41 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 |
|---|---|---|---|
| Aug 2, 4:45 PM CDT | Hail 0.75 | Hecla, SD | |
| Aug 2, 4:50 PM CDT | Hail 0.75 | Britton, 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 watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Aug 2, 4:00 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
The nearest sounding before it
Aberdeen, SD (KABR), launched 12:00Z, 9.7 hours before the alert went out and 92 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
- 1632 J/kg
- Mixed-layer CIN
- -142 J/kg
- Mixed-layer LCL
- 1299 m above ground
- 0-6 km bulk shear
- 30 kt
- 0-1 km storm-relative helicity
- 98 m²/s²
- 0-3 km storm-relative helicity
- 126 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.9
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.
NWS Aberdeen, SD wrote its last area forecast discussion before this severe thunderstorm warning went out at Aug 2, 10:31 AM CDT, 6 hours 10 minutes earlier.
Area forecast discussion, Aug 2, 10:31 AM CDT, 6 hours 10 minutes before
AREA FORECAST DISCUSSION FOR CENTRAL/NORTH CENTRAL/NORTHEAST SD AND FOR TRAVERSE/BIG STONE COUNTIES OF MN NATIONAL WEATHER SERVICE ABERDEEN SD 1025 CDT SAT AUG 2 1997 WILL UPDATE SHORTLY TO INTRODUCE 30 PCT POPS THIS AFTERNOON ACROSS NORTHERN TIER OF COUNTIES. WATER VAPOR LOOP SHOWS SHORT WAVE MOVING THRU EASTERN MT INTO WRN DAKOTAS...WITH CLUSTER OF STORMS ALREADY IN NW SD. AIR IS PLENTY UNSTABLE...ESPECIALLY IN EAST WITH HI DEWPOINTS. ALSO MAKING SOME MINOR CHANGES TO WINDS AND MAX TEMPS. .ABR...NONE MIDDLEBROOKE
In the hours before
Special weather statement, Aug 2, 11:45 AM CDT, 4 hours 56 minutes before
SEVERE WEATHER OUTLOOK NATIONAL WEATHER SERVICE ABERDEEN SD 1145 AM CDT SAT AUG 2 1997 SDZ006>008-011-018>023-MNZ039-046-030500- BIG STONE MN-BROWN-CLARK-CODINGTON-DAY-DEUEL-GRANT-HAMLIN-MARSHALL- ROBERTS-SPINK-TRAVERSE MN- INCLUDING THE CITIES OF...ABERDEEN...BRITTON...SISSETON...WEBSTER... REDFIELD...CLARK...WATERTOWN...MILBANK...CASTLEWOOD...CLEAR LAKE... WHEATON...ORTONVILLE 1145 AM CDT SAT AUG 2 1997 ...SLIGHT RISK OF SEVERE THUNDERSTORMS THROUGH TONIGHT... SCATTERED THUNDERSTORMS ARE EXPECTED TO DEVELOP BY LATE THIS AFTERNOON OR THIS EVENING. A FEW OF THE STORMS MAY BE SEVERE...WITH LARGE HAIL AND STRONG DAMAGING WINDS. SDZ003>005-009-010-015>017-030500- CAMPBELL-CORSON-DEWEY-EDMUNDS-FAULK-MCPHERSON-POTTER-WALWORTH- INCLUDING THE CITIES OF...MCINTOSH...MOUND CITY...EUREKA...MOBRIDGE... ROSCOE...TIMBER LAKE...GETTYSBURG...FAULKTON 1145 AM CDT SAT AUG 2 1997 ...SLIGHT RISK OF SEVERE THUNDERSTORMS THROUGH THIS EVENING... SCATTERED THUNDERSTORMS ARE EXPECTED TO DEVELOP THIS AFTERNOON...AND PERSIST INTO EARLY EVENING. ISOLATED SEVERE STORMS ARE POSSIBLE...WITH LARGE HAIL AND STRONG DAMAGING WINDS. SDZ033>037-045-048-051-030500- BUFFALO-HAND-HUGHES-HYDE-JONES-LYMAN-STANLEY-SULLY- INCLUDING THE CITIES OF...FT PIERRE...ONIDA...PIERRE...HIGHMORE... MILLER...MURDO...PRESHO...FT THOMPSON 1145 AM CDT SAT AUG 2 1997 ...SLIGHT RISK OF SEVERE THUNDERSTORMS THROUGH THIS EVENING... WIDELY SCATTERED THUNDERSTORMS ARE FORECAST FOR THIS EVENING. ONE OR TWO OF THE STORMS MAY BE SEVERE...WITH LARGE HAIL AND DAMAGING WINDS. .A WEAK DISTURBANCE WILL MOVE EAST ACROSS SOUTH DAKOTA THIS AFTERNOON... AND INTO WESTERN MINNESOTA TONIGHT. AS THIS DISTURBANCE MOVES INTO INCREASINGLY MOIST AND UNSTABLE AIR...SCATTERED THUNDERSTORMS IN WESTERN SOUTH DAKOTA SHOULD STRENGTHEN AND BECOME BETTER ORGANIZED AS THEY MOVE EAST ACROSS NORTHERN SOUTH DAKOTA. THE BEST CHANCE FOR SEVERE STORMS WILL BE IN NORTHEAST SOUTH DAKOTA AND WEST CENTRAL MINNESOTA...WHERE THE BEST LOW-LEVEL MOISTURE IS LOCATED. MIDDLEBROOKE
Special weather statement, Aug 2, 11:48 AM CDT, 4 hours 53 minutes before
SEVERE WEATHER OUTLOOK NATIONAL WEATHER SERVICE ABERDEEN SD 1145 AM CDT SAT AUG 2 1997 SDZ006>008-011-018>023-MNZ039-046-030500- BIG STONE MN-BROWN-CLARK-CODINGTON-DAY-DEUEL-GRANT-HAMLIN-MARSHALL- ROBERTS-SPINK-TRAVERSE MN- INCLUDING THE CITIES OF...ABERDEEN...BRITTON...SISSETON...WEBSTER... REDFIELD...CLARK...WATERTOWN...MILBANK...CASTLEWOOD...CLEAR LAKE... WHEATON...ORTONVILLE 1145 AM CDT SAT AUG 2 1997 ...SLIGHT RISK OF SEVERE THUNDERSTORMS THROUGH TONIGHT... SCATTERED THUNDERSTORMS ARE EXPECTED TO DEVELOP BY LATE THIS AFTERNOON OR THIS EVENING. A FEW OF THE STORMS MAY BE SEVERE...WITH LARGE HAIL AND STRONG DAMAGING WINDS. SDZ003>005-009-010-015>017-030500- CAMPBELL-CORSON-DEWEY-EDMUNDS-FAULK-MCPHERSON-POTTER-WALWORTH- INCLUDING THE CITIES OF...MCINTOSH...MOUND CITY...EUREKA...MOBRIDGE... ROSCOE...TIMBER LAKE...GETTYSBURG...FAULKTON 1145 AM CDT SAT AUG 2 1997 ...SLIGHT RISK OF SEVERE THUNDERSTORMS THROUGH THIS EVENING... SCATTERED THUNDERSTORMS ARE EXPECTED TO DEVELOP THIS AFTERNOON...AND PERSIST INTO EARLY EVENING. ISOLATED SEVERE STORMS ARE POSSIBLE...WITH LARGE HAIL AND STRONG DAMAGING WINDS. SDZ033>037-045-048-051-030500- BUFFALO-HAND-HUGHES-HYDE-JONES-LYMAN-STANLEY-SULLY- INCLUDING THE CITIES OF...FT PIERRE...ONIDA...PIERRE...HIGHMORE... MILLER...MURDO...PRESHO...FT THOMPSON 1145 AM CDT SAT AUG 2 1997 ...SLIGHT RISK OF SEVERE THUNDERSTORMS THROUGH THIS EVENING... WIDELY SCATTERED THUNDERSTORMS ARE FORECAST FOR THIS EVENING. ONE OR TWO OF THE STORMS MAY BE SEVERE...WITH LARGE HAIL AND DAMAGING WINDS. .A WEAK DISTURBANCE WILL MOVE EAST ACROSS SOUTH DAKOTA THIS AFTERNOON... AND INTO WESTERN MINNESOTA TONIGHT. AS THIS DISTURBANCE MOVES INTO INCREASINGLY MOIST AND UNSTABLE AIR...SCATTERED THUNDERSTORMS IN WESTERN SOUTH DAKOTA SHOULD STRENGTHEN AND BECOME BETTER ORGANIZED AS THEY MOVE EAST ACROSS NORTHERN SOUTH DAKOTA. THE BEST CHANCE FOR SEVERE STORMS WILL BE IN NORTHEAST SOUTH DAKOTA AND WEST CENTRAL MINNESOTA...WHERE THE BEST LOW-LEVEL MOISTURE IS LOCATED. MIDDLEBROOKE
Special weather statement, Aug 2, 3:55 PM CDT, 46 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ABERDEEN SD 355 PM CDT SAT AUG 2 1997 SDZ004>007-009>011-016>020-022-034>037-048-051-030400- BROWN-BUFFALO-CAMPBELL-CLARK-CODINGTON-DAY-EDMUNDS-FAULK-HAMLIN-HAND- HUGHES-HYDE-LYMAN-MARSHALL-MCPHERSON-POTTER-SPINK-SULLY-WALWORTH- INCLUDING THE CITIES OF...MOUND CITY...EUREKA...ABERDEEN...BRITTON... MOBRIDGE...ROSCOE...WEBSTER...GETTYSBURG...FAULKTON...REDFIELD... CLARK...WATERTOWN...CASTLEWOOD...ONIDA...PIERRE...HIGHMORE...MILLER... PRESHO...FT THOMPSON 355 PM CDT SAT AUG 2 1997 ...SEVERE THUNDERSTORM WATCH FOR MUCH OF CENTRAL AND NORTHEAST SOUTH DAKOTA UNTIL 10 PM CDT... THE STORM PREDICTION CENTER HAS ISSUED A SEVERE THUNDERSTORM WATCH EFFECTIVE UNTIL 10 PM THIS EVENING FOR A LARGE PORTION OF CENTRAL AND NORTHEAST SOUTH DAKOTA...MAINLY EAST OF THE RIVER. SEVERE THUNDERSTORMS WITH LARGE HAIL...DAMAGING WINDS AND VERY HEAVY RAIN ARE POSSIBLE. COMMUNITIES IN THE WATCH INCLUDE MOBRIDGE...GETTYSBURG...PIERRE... PRESHO...ABERDEEN...FAULKTON...FORT THOMPSON...REDFIELD...BRITTON... SISSETON...AND WATERTOWN. IF YOU LIVE IN OR NEAR THE WATCH AREA...BE ALERT FOR THREATENING WEATHER. SEEK SHELTER IMMEDIATELY IF A WARNING IS ISSUED. MIDDLEBROOKE
Special weather statement, Aug 2, 4:00 PM CDT, 41 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ABERDEEN SD 355 PM CDT SAT AUG 2 1997 SDZ004>007-009>011-016>020-022-034>037-048-051-030400- BROWN-BUFFALO-CAMPBELL-CLARK-CODINGTON-DAY-EDMUNDS-FAULK-HAMLIN-HAND- HUGHES-HYDE-LYMAN-MARSHALL-MCPHERSON-POTTER-SPINK-SULLY-WALWORTH- INCLUDING THE CITIES OF...MOUND CITY...EUREKA...ABERDEEN...BRITTON... MOBRIDGE...ROSCOE...WEBSTER...GETTYSBURG...FAULKTON...REDFIELD... CLARK...WATERTOWN...CASTLEWOOD...ONIDA...PIERRE...HIGHMORE...MILLER... PRESHO...FT THOMPSON 355 PM CDT SAT AUG 2 1997 ...SEVERE THUNDERSTORM WATCH FOR MUCH OF CENTRAL AND NORTHEAST SOUTH DAKOTA UNTIL 10 PM CDT... THE STORM PREDICTION CENTER HAS ISSUED A SEVERE THUNDERSTORM WATCH EFFECTIVE UNTIL 10 PM THIS EVENING FOR A LARGE PORTION OF CENTRAL AND NORTHEAST SOUTH DAKOTA...MAINLY EAST OF THE RIVER. SEVERE THUNDERSTORMS WITH LARGE HAIL...DAMAGING WINDS AND VERY HEAVY RAIN ARE POSSIBLE. COMMUNITIES IN THE WATCH INCLUDE MOBRIDGE...GETTYSBURG...PIERRE... PRESHO...ABERDEEN...FAULKTON...FORT THOMPSON...REDFIELD...BRITTON... SISSETON...AND WATERTOWN. IF YOU LIVE IN OR NEAR THE WATCH AREA...BE ALERT FOR THREATENING WEATHER. SEEK SHELTER IMMEDIATELY IF A WARNING IS ISSUED. MIDDLEBROOKE
The office that day
Everything else NWS Aberdeen, SD issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 2, 4:17 PM CDT | Severe Thunderstorm Warning | ABR | Brown, Spink | 48 min |
| Aug 2, 4:24 PM CDT | Severe Thunderstorm Warning | ABR | Campbell | 61 min |
| Aug 2, 4:28 PM CDT | Severe Thunderstorm Warning | ABR | Sully | 62 min |
| Aug 2, 4:56 PM CDT | Tornado Warning | ABR | Dewey | 34 min |
| Aug 2, 5:05 PM CDT | Severe Thunderstorm Warning | ABR | Spink | 50 min |
| Aug 2, 5:10 PM CDT | Severe Thunderstorm Warning | ABR | Potter | 65 min |
| Aug 2, 5:42 PM CDT | Severe Thunderstorm Warning | ABR | Marshall | 48 min |
| Aug 2, 6:08 PM CDT | Severe Thunderstorm Warning | ABR | Sully | 47 min |
| Aug 2, 6:13 PM CDT | Severe Thunderstorm Warning | ABR | Spink | 47 min |
| Aug 2, 6:32 PM CDT | Severe Thunderstorm Warning | ABR | Day | 63 min |
Nearby
Severe Thunderstorm Warnings in South Dakota, 1997Every severe thunderstorm warning in 1997
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.