Alert archive / North Dakota / Severe Thunderstorm Warnings in 1993
Severe Thunderstorm Warning 14, NWS Bismarck, ND
NWS Bismarck, ND issued this severe thunderstorm warning at Jun 22, 1993, 6:39 PM CDT for Sioux County, North Dakota. It was in force for 51 min.
The area
The counties it named.
The facts
- Issued
- Jun 22, 1993, 6:39 PM CDT (23:39 UTC)
- Expired
- Jun 22, 1993, 7:30 PM CDT
- In force
- 51 min
- Issued by
- NWS Bismarck, ND
- Area
- Whole counties
County Sioux County, ND
The nearest sounding before it
Bismarck Municip, ND (KBIS), launched 12:00Z, 11.7 hours before the alert went out and 78 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
- 534 J/kg
- Mixed-layer CIN
- -187 J/kg
- Mixed-layer LCL
- 1483 m above ground
- 0-6 km bulk shear
- 26 kt
- 0-1 km storm-relative helicity
- 81 m²/s²
- 0-3 km storm-relative helicity
- 77 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
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, Jun 22, 3:19 PM CDT, 3 hours 20 minutes before
NDZ001>018-222230- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE BISMARCK ND 320 PM CDT TUE JUN 22 1993 ...SEVERE THUNDERSTORM WATCH FOR THE WEST HALF OF NORTH DAKOTA UNTIL 10 PM CDT OR 9 PM MDT THIS TUESDAY EVENING... THUNDERSTORMS ARE EXPECTED TO CONTINUE DEVELOPING ACROSS THE WEST HALF OF NORTH DAKOTA THIS AFTERNOON. THERE WILL ALSO BE STORM DEVELOPMENT IN WYOMING AND SOUTH DAKOTA THAT WILL BE MOVING INTO WESTERN NORTH DAKOTA. DUE TO THE ABUNDANT MOISTURE AND INSTABILITY OF THE AIR OVER WESTERN NORTH DAKOTA A SEVERE THUNDERSTORM WATCH HAS BEEN ISSUED. AT 315 PM CDT BISMARCKS WEATHER RADAR INDICATED A LINE OF RAPIDLY DEVELOPING THUNDERSTORMS FROM WESTERN MORTON COUNTY...WEST OF MANDAN TO SOUTHERN BURKE COUNTY NORTHEAST OF WILLISTON. THE STRONGEST STORMS IN THIS LINE WERE IN CENTRAL MERCER COUNTY IN THE BEULAH AREA. THESE STORMS WERE PRODUCING VERY HEAVY RAIN AND SMALL HAIL. ALL OF THE STORMS IN THE LINE WERE MOVING TO THE NORTH AT 35 MPH AND ANY OF THEM COULD BECOME SEVERE WITH LARGE HAIL AND DAMAGING WINDS. KAS
Special weather statement, Jun 22, 3:53 PM CDT, 2 hours 46 minutes before
NDZ002-003-222140- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE WILLISTON ND 345 PM CDT TUE JUN 20 1993 ...STRONG THUNDERSTORMS CONTINUE OVER WESTERN NORTH DAKOTA... AT 340 PM CDT...NATIONAL WEATHER SERVICE RADAR IN WILLISTON INDICATED A LINE OF STRONG THUNDERSTORMS FROM 65 MILES NORTHEAST OF WILLISON NEAR COLUMBUS TO 40 MILES SOUTH OF MINOT. THE STRONGEST IN THE LINE WERE 65 MILES NORTHEAST OF WILLISTON JUST NORTHEAST OF COLUMBUS AND 45 MILES EAST OF WILLISTON JUST EAST OF WHITE EARTH. THUNDERSTORMS IN THE LINE WERE MOVING NORTHEAST AT 30 MPH. A SECOND AREA OF RAINSHOWERS AND THUNDERSTORMS WAS OVER THE MONTANA NORTH DAKOTA BORDER JUST WEST OF WILLISTON ALSO MOVING NORTHEAST AT P30 MPH. IF THUNDERSTORMS APPROACH YOUR AREA...TAKE SHELTER INDOORS IF POSSIBLE. A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT FOR ALL OF WESTERN NORTH DAKOTA UNTIL 10 PM CDT. KENNEDY
Special weather statement, Jun 22, 4:29 PM CDT, 2 hours 10 minutes before
NDZ001>018-222330- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE BISMARCK ND 430 PM CDT TUE JUN 22 1993 ...SEVERE THUNDERSTORM WATCH FOR THE WEST HALF OF NORTH DAKOTA UNTIL 10 PM CDT OR 9 PM MDT THIS TUESDAY EVENING... AT 420 PM CDT...AN AREA OF THUNDERSTORMS WERE OCCURRING THROUGH THE CENTRAL PORTION OF NORTH DAKOTA FROM 25 MILES WEST OF MINOT SOUTHWARD TO 25 MILES SOUTHWEST OF BISMARCK. THE STRONGEST ACTIVITY WAS LOCATED IN CENTRAL MERCE<R COUNTY...40 MILES SOUTH OF MINOT. THESE THUNDERSTORMS WERE MOVING NORTH AT 35 MILES AN HOUR.
Special weather statement, Jun 22, 4:55 PM CDT, 1 hour 44 minutes before
NDZ002-003-222250- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE WILLISTON ND 445 PM CDT TUE JUN 20 1993 ...THUNDERSTORMS CONTINUE OVER WESTERN NORTH DAKOTA... AT 440 PM CDT...NATIONAL WEATHER SERVICE RADAR IN WILLISTON INDICATED AN AREA OF THUNDERSTORMS FROM 5 MILES SOUTH OF MINOT TO 55 MILES NORTHWEST OF MINOT. THE AREA EXTENDED FURTHER NORTHWEST INTO CENTRAL SASKATCHEWAN. THE STRONGER STORMS IN THE AREA WERE JUST SOUTH OF MINOT AND OVER THE TOWN OF GRANO...20 MILES NORTH NORTHWEST OF MINOT. A SECOND AREA OF RAINSHOWERS AND POSSIBLE THUNDERSTORMS WAS OVER THE MONTANA - NORTH DAKOTA BORDER JUST WEST OF WILLISTON. THUNDERSTORMS AND RAINSHOWERS OVER WESTERN NORTH DAKOTA WERE MOVING NORTHEAST AT 30 MPH. IF THUNDERSTORMS APPROACH YOUR AREA...TAKE SHELTER INDOORS IF POSSIBLE. A SEVERE THUNDERSTORMS WATCH REMAINS IN EFFECT FOR WESTERN NORTH DAKOTA UNTIL 10 PM CDT. KENNEDY
Special weather statement, Jun 22, 6:02 PM CDT, 37 minutes before
NDZ001-005-222350- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE WILLISTON ND 555 PM CDT TUE JUN 22 1993 ...SEVERE THUNDERSTORM WATCH CANCELLED FOR WESTERN NORTH DAKOTA... THE SEVERE THUNDERSTORM WATCH FOR WESTERN NORTH DAKOTA IS NO LONGER IN EFFECT. THIS INCLUDES THE AREA FROM MINOT WEST. CITIES INCLUDED IN THIS AREA ARE WILLISTON...DICKINSON...STANLEY AND WATFORD CITY. AT 545 PM CDT WILLISTON RADAR INDICATED THAT ALL OF THE STRONG THUNDERSTORMS HAD MOVED EAST OF MINOT AND ONLY SCATTERED LIGHT RAINSHOWERS REMAINED OVER THE WESTERN THIRD OF THE STATE. KENNEDY A SEVERE THUNDERSTORMS WATCH REMAINS IN EFFECT FOR WESTERN NORTH DAKOTA UNTIL 10 PM CDT. KENNEDY
Special weather statement, Jun 22, 6:03 PM CDT, 36 minutes before
NDZ001-005-222350- SPECIAL WEATHER STATEMENT...CORRECTED... NATIONAL WEATHER SERVICE WILLISTON ND 555 PM CDT TUE JUN 22 1993 ...SEVERE THUNDERSTORM WATCH CANCELLED FOR WESTERN NORTH DAKOTA... THE SEVERE THUNDERSTORM WATCH FOR WESTERN NORTH DAKOTA IS NO LONGER IN EFFECT. THIS INCLUDES THE AREA FROM MINOT WEST. CITIES INCLUDED IN THIS AREA ARE WILLISTON...DICKINSON...STANLEY AND WATFORD CITY. AT 545 PM CDT WILLISTON RADAR INDICATED THAT ALL OF THE STRONG THUNDERSTORMS HAD MOVED EAST OF MINOT AND ONLY SCATTERED LIGHT RAINSHOWERS REMAINED OVER THE WESTERN THIRD OF THE STATE. KENNEDY
The office that day
Everything else NWS Bismarck, ND issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 21, 7:14 PM CDT | Tornado Warning | BIS | Foster | 31 min |
| Jun 21, 7:30 PM CDT | Tornado Warning | BIS | Eddy | 30 min |
| Jun 22, 4:58 PM CDT | Severe Thunderstorm Warning | BIS | McLean, Sheridan | 42 min |
| Jun 22, 5:59 PM CDT | Tornado Warning | BIS | Burleigh, Sheridan | 46 min |
| Jun 22, 6:29 PM CDT | Severe Thunderstorm Warning | BIS | Kidder, Logan | 46 min |
| Jun 22, 6:30 PM CDT | Severe Thunderstorm Warning | BIS | Burleigh | 45 min |
Nearby
Severe Thunderstorm Warnings in North 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.