Alert archive / Minnesota / Severe Thunderstorm Warnings in 1994
Severe Thunderstorm Warning 121, NWS Sioux Falls, SD
NWS Sioux Falls, SD issued this severe thunderstorm warning at Aug 7, 1994, 7:35 PM CDT for Jackson County, Nobles County, Minnesota. It was in force for 55 min.
The area
The counties it named.
The facts
- Issued
- Aug 7, 1994, 7:35 PM CDT (00:35 UTC)
- Expired
- Aug 7, 1994, 8:30 PM CDT
- In force
- 55 min
- Issued by
- NWS Sioux Falls, SD
- Area
- Whole counties
Counties Jackson County, MN, Nobles County, MN
The nearest sounding before it
Minneapolis, MN (KSTC), launched 00:00Z, 0.6 hours before the alert went out and 197 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
- 2071 J/kg
- Mixed-layer CIN
- -2 J/kg
- Mixed-layer LCL
- 998 m above ground
- 0-6 km bulk shear
- 42 kt
- 0-1 km storm-relative helicity
- 33 m²/s²
- 0-3 km storm-relative helicity
- 97 m²/s²
- Significant tornado parameter
- 0.4
- Supercell composite
- 2.3
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
Special weather statement, Aug 7, 5:46 PM CDT, 1 hour 49 minutes before
IAZ013-020-021-031-032-043-NEZ013>015-SDZ071-031630- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SIOUX CITY IA 546 PM CDT WED AUG 3 1994 ...THUNDERSTORMS WILL MOVE INTO THE AREA BY MID EVENING... SCATTERED THUNDERSTORMS THAT WERE IN NORTH CENTRAL NEBRASKA AND SOUTH CENTRAL SOUTH DAKOTA WILL MOVE INTO THE AREA BY MIDDLE EVENING. THE AREAS THAT WILL SEE THE THUNDERSTORMS FIRST WILL BE NORTH AND WEST OF SIOUX CITY. THIS IS ALSO WHERE THE WATCH IS IN EFFECT. A SEVERE THUNDERSTORM WATCH IS IN EFFECT UNTIL MIDNIGHT FOR DIXON COUNTY NEBRASKA...UNION COUNTY SOUTH DAKOTA...AND PLYMOUTH COUNTY IOWA. PEOPLE IN THE WATCH AREA SHOULD KEEP AN EYE ON THE SKY AND LISTEN FOR LATER WEATHER STATEMENTS AND POSSIBLE WARNINGS. MICHELS
Special weather statement, Aug 7, 6:45 PM CDT, 50 minutes before
SDZ049-050-057-058-072345- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SIOUX FALLS SD 645 PM CDT SUN AUG 7 1994 ...SEVERE THUNDERSTORM WATCH FOR TRIPP...GREGORY...BRULE...AND AURORA COUNTIES CANCELED... THE SEVERE THUNDERSTORM WATCH FOR TRIPP...GREGORY...BRULE...AND AURORA COUNTIES OF SOUTHCENTRAL SOUTH DAKOTA HAS BEEN CANCELED AS OF 645 PM CDT. SCATTERED THUNDERSHOWERS ARE STILL POSSIBLE IN THESE AREAS BUT NO SEVERE WEATHER IS EXPECTED. CONTINUE WATCH 704 FOR THE REMAINDER OF SOUTHEAST SOUTH DAKOTA. KOSCIELSKI
Special weather statement, Aug 7, 6:47 PM CDT, 48 minutes before
SDZ049-050-057-058-072345- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SIOUX FALLS SD 645 PM CDT SUN AUG 7 1994 ...SEVERE THUNDERSTORM WATCH FOR TRIPP...GREGORY...BRULE...AND AURORA COUNTIES CANCELED... THE SEVERE THUNDERSTORM WATCH FOR TRIPP...GREGORY...BRULE...AND AURORA COUNTIES OF SOUTHCENTRAL SOUTH DAKOTA HAS BEEN CANCELED AS OF 645 PM CDT. SCATTERED THUNDERSHOWERS ARE STILL POSSIBLE IN THESE AREAS BUT NO SEVERE WEATHER IS EXPECTED.T CONTINUE WATCH 704 FOR THE REMAINDER OF SOUTHEAST SOUTH DAKOTA. KOSCIELSKI
Special weather statement, Aug 7, 7:03 PM CDT, 32 minutes before
IAZ021-032-043-013-020-031-NEZ014-013-015-SDZ071-080100- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SIOUX CITY IA 703 PM CDT SUN AUG 7 1994 ...THUNDERSTORMS WILL MOVE INTO THE AREA BY MIDDLE EVENING... SCATTERED THUNDERSTORMS THAT WERE DEVELOPING IN NORTH CENTRAL NEBRASKA AND SOUTHEAST SOUTH DAKOTA WILL MOVE INTO THE AREA BY MIDDLE EVENING. A SEVERE THUNDERSTORM WATCH IS IN EFFECT UNTIL MIDNIGHT FOR DIXON COUNTY NEBRASKA...UNION COUNTY SOUTH DAKOTA...AND PLYMOUTH COUNTY IOWA. A SEVERE THUNDERSTORM WATCH IS ALSO IN EFFECT UNTIL 1 AM CDT FOR OBRIEN...CHEROKEE...WOODBURY AND IDA COUNTIES IN IOWA. PEOPLE IN THESE WATCH AREAS SHOULD KEEP THEIR EYE ON THE SKY AND LISTEN FOR LATER STATEMENTS AND POSSIBLE WARNINGS. MICHELS
Special weather statement, Aug 7, 7:06 PM CDT, 29 minutes before
IAZ021-032-043-013-020-031-NEZ014-013-015-SDZ071-080100- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SIOUX CITY IA 703 PM CDT SUN AUG 7 1994 ...THUNDERSTORMS WILL MOVE INTO THE AREA BY MIDDLE EVENING... SCATTERED THUNDERSTORMS THAT WERE DEVELOPING IN NORTH CENTRAL NEBRASKA AND SOUTHEAST SOUTH DAKOTA WILL MOVE INTO THE AREA BY MIDDLE EVENING. A SEVERE THUNDERSTORM WATCH IS IN EFFECT UNTIL MIDNIGHT FOR DIXON COUNTY NEBRASKA...UNION COUNTY SOUTH DAKOTA...AND PLYMOUTH COUNTY IOWA. A SEVERE THUNDERSTORM WATCH IS ALSO IN EFFECT UNTIL 1 AM CDT FOR OBRIEN...CHEROKEE...WOODBURY AND IDA COUNTIES IN IOWA. PEOPLE IN THESE WATCH AREAS SHOULD KEEP THEIR EYE ON THE SKY AND LISTEN FOR LATER STATEMENTS AND POSSIBLE WARNINGS. MICHELS
The office that day
Everything else NWS Sioux Falls, SD issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 7, 8:49 PM CDT | Severe Thunderstorm Warning | FSD | Lyon, Osceola | 56 min |
| Aug 7, 9:14 PM CDT | Severe Thunderstorm Warning | FSD | O'Brien | 46 min |
| Aug 7, 9:49 PM CDT | Severe Thunderstorm Warning | FSD | Sioux | 56 min |
| Aug 7, 10:01 PM CDT | Severe Thunderstorm Warning | FSD | O'Brien | 29 min |
| Aug 7, 10:20 PM CDT | Severe Thunderstorm Warning | FSD | Cherokee | 40 min |
| Aug 7, 11:51 PM CDT | Severe Thunderstorm Warning | FSD | Monona | 24 min |
| Aug 8, 12:17 AM CDT | Tornado Warning | FSD | Monona | 28 min |
| Aug 7, 7:40 PM CDT | Severe Thunderstorm Warning | FSD | Turner | 35 min |
| Aug 7, 7:47 PM CDT | Tornado Warning | FSD | Nobles | 24 min |
| Aug 7, 8:36 PM CDT | Severe Thunderstorm Warning | FSD | Nobles | 39 min |
Nearby
Severe Thunderstorm Warnings in Minnesota, 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.