Alert archive / North Dakota / Severe Thunderstorm Warnings in 1989
Severe Thunderstorm Warning 33, NWS Bismarck, ND
NWS Bismarck, ND issued this severe thunderstorm warning at Jul 11, 1989, 7:42 PM MDT for Dunn County, McKenzie County, North Dakota. It was in force for 48 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
- Jul 11, 1989, 7:42 PM MDT (01:42 UTC)
- Expired
- Jul 11, 1989, 8:30 PM MDT
- In force
- 48 min
- Issued by
- NWS Bismarck, ND
- Area
- Whole counties
Counties Dunn County, ND, McKenzie County, ND
The radar
The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Jul 11, 8:00 PM MDT | Hail 2 | Mckenzie, ND | |
| Jul 11, 8:40 PM MDT | Hail 1 | Dunn, ND |
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. Storm Data before 1996 records only tornadoes, thunderstorm wind and hail.
The nearest sounding before it
Bismarck Municip, ND (KBIS), launched 00:00Z, 1.7 hours before the alert went out and 195 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
- 512 J/kg
- Mixed-layer CIN
- -38 J/kg
- Mixed-layer LCL
- 1864 m above ground
- 0-6 km bulk shear
- 24 kt
- 0-1 km storm-relative helicity
- -29 m²/s²
- 0-3 km storm-relative helicity
- 18 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- -0.2
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, Jul 11, 5:51 PM MDT, 1 hour 51 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE WILLISTON ND 645 PM CDT TUE JUL 11 1989 ...A THUNDERSTORM IS DEVELOPING RAPIDLY NORTHWEST OF WILLISTON NORTH DAKOTA... AT 640 PM CDT THE NATIONAL WEATHER SERVICE RADAR IN WILLISTON INDICATED A RAPIDLY DEVELOPING THUNDERSTORM 14 MILES NORTHWEST OF WILLISTON. THE THUNDERSTORM WAS MOVING SOUTHEAST AT 25 MILES AN HOUR AND WILL BE OVER THE CITY OF WILLISTON SHORTLY AFTER 7 PM CDT. THIS THUNDERSTORM WILL PRODUCE BRIEF HEAVY ALONG WITH POSSIBLE STRONG GUSTY WINDS...HAIL AND DEADLY LIGHTNING. IF YOU ARE IN THE PATH OF THIS THUNDERSTORM BE PREPARED TO GO TO A SAFE SHELTER. KENNEDY
Special weather statement, Jul 11, 5:53 PM MDT, 1 hour 49 minutes before
SPECIAL WEATHER STATEMENT ...CORRECTED... NATIONAL WEATHER SERVICE WILLISTON ND 645 PM CDT TUE JUL 11 1989 ...A THUNDERSTORM IS DEVELOPING RAPIDLY NORTHWEST OF WILLISTON NORTH DAKOTA... AT 640 PM CDT THE NATIONAL WEATHER SERVICE RADAR IN WILLISTON INDICATED A RAPIDLY DEVELOPING THUNDERSTORM 14 MILES NORTHWEST OF WILLISTON. THE THUNDERSTORM WAS MOVING SOUTHEAST AT 25 MILES AN HOUR AND WILL BE OVER THE CITY OF WILLISTON SHORTLY AFTER 7 PM CDT. THIS THUNDERSTORM WILL PRODUCE BRIEF HEAVY RAIN ALONG WITH POSSIBLE STRONG GUSTY WINDS...HAIL AND DEADLY LIGHTNING. IF YOU ARE IN THE PATH OF THIS THUNDERSTORM BE PREPARED TO GO TO A SAFE SHELTER. KENNEDY
Special weather statement, Jul 11, 6:18 PM MDT, 1 hour 24 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE BISMARCK ND 715 PM CDT TUE JUL 11 1989 ...THUNDERSTORM MOVING INTO THE CITY OF MINOT... AT 715 PM CDT A THUNDERSTORM WAS MOVING INTO THE CITY OF MINOT2. THE THUNDERSTORM HAS INCREASED IN INTENSITY DURING THE PAST 15 MINUTES. VERY HEAVY RAIN...SMALL HAIL...WIND GUSTING TO 50 MPH AND INTENSE DANGEROUS LIGHTNING CAN BE EXPECTED IN THE CITY OF MINOT UNTIL 8 PM CDT. VAN ESS
Special weather statement, Jul 11, 6:39 PM MDT, 1 hour 3 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE BISMARCK ND 740 PM CDT TUE JUL 11 1989 ...SEVERE THUNDERSTORM WARNING FOR WARD COUNTY INCLUDING THE CITY OF MINOT UNTIL 8 PM CDT... AT 740 PM CDT A SEVERE THUNDERSTORM WAS MOVING THROUGH THE CITY OF MINOT. THIS STORM WAS MOVING SOUTHEAST AT 25 MPH AND WILL BE OUT OF MINOT BY 8 PM CDT. THIS STORM WILL PRODUCE LARGE HAIL...HEAVY RAIN...FREQUENT CLOUD TO GROUND LIGHTNING AND WINDS GUSTING TO OVEXR 60 MPH. AT 721 PM CDT WINDS WERE GUSTING TO 58 MPH AT THE MINOT AIRPORT. AT 726 PM CDT WINDS DOWNED TREES IN BURLINGTON OR ABOUT 8 MILES NORTHWEST OF MINOT. MCMULLEN
Special weather statement, Jul 11, 6:50 PM MDT, 52 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE WILLISTON ND 750 PM CDT TUE JUL 11 1989 ...SEVERE THUNDERSTORMS CONTINUE OVER NORTHWEST NORTH DAKOTA... SEVERE THUNDERSTORM WARNINGS REMAIN IN EFFECT FOR SOUTHWEST MOUNTRAIL COUNTY UNTIL 815 PM CDT AND FOR SOUTHERN WILLIAMS AND NORTHERN MCKENZIE COUNTIES UNTIL 830 PM CDT. AT 745 PM CDT SEVERE THUNDERSTORMS WERE 20 MILES SOUTHEAST OF WILLISTON AND 5 MILES NORTHWEST OF NEW TOWN MOVING SOUTHEAST AT 25 MILES AN HOUR. HAIL UP TO 1 INCH AND WIND GUSTS TO NEAR 65 MILES AN HOUR WERE PRODUCED BY THE SEVERE THUNDERSTORM THAT PASS THROUGH THE WILLISTON AREA. THESE ARE DANGEROUS THUNDERSTORMS. IF THEY APPROACH YOUR AREA GO TO A SAFE SHELTERi. KENNEDY
Special weather statement, Jul 11, 7:11 PM MDT, 31 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE BISMARCK ND 810 PM CDT TUE JUL 11 1989 ...SEVERE THUNDERSTORM WATCH FOR MUCH OF WESTERN AND CENTRAL NORTH DAKOTA UNTIL 1 AM CDT... AT 810 PM CDT A THUNDERSTORM WAS LOCATED IN WESTERN MCHENRY COUNTY 12 MILES SOUTHEAST OF MINOT. THE THUNDERSTORM WAS LOCATED BETWEEN GRANVILLE...KARLSRUHE AND VELVA AND HEADING FOR THE TOWN OF KARLSRUHE. THIS THUNDERSTORM UPROOTED TREES...DISRUPTED POWER...PRODUCED LARGE HAIL AND WIND GUSTING TO NEAR 60 MPH IN MINOT. DURING THE PAST 15 MINUTES THE STORM HAS DECREASED RAPIDLY IN INTENSITY. THE THUNDERSTORM WILL MOVE INTO THE TOWN OF KARLSRUHE BETWEEN 830 AND 9 PM CDT. IT WILL LIKELY PRODUCE VERY HEAVY RAIN...HAIL AND GUSTY WINDS. VAN ESS
The office that day
Everything else NWS Bismarck, ND issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 11, 6:09 PM MDT | Severe Thunderstorm Warning | BIS | McKenzie, Mountrail | 66 min |
| Jul 11, 6:21 PM MDT | Severe Thunderstorm Warning | BIS | Ward | 39 min |
| Jul 11, 6:24 PM MDT | Severe Thunderstorm Warning | BIS | McKenzie, Williams | 66 min |
| Jul 11, 7:28 PM MDT | Severe Thunderstorm Warning | BIS | Mountrail | 32 min |
| Jul 11, 7:40 PM MDT | Severe Thunderstorm Warning | BIS | McHenry | 35 min |
| Jul 11, 7:52 PM MDT | Severe Thunderstorm Warning | BIS | McLean | 68 min |
| Jul 11, 8:07 PM MDT | Tornado Warning | BIS | McHenry | 23 min |
| Jul 11, 8:34 PM MDT | Severe Thunderstorm Warning | BIS | Dunn | 56 min |
| Jul 11, 9:55 PM MDT | Severe Thunderstorm Warning | BIS | Mercer, Morton | 35 min |
| Jul 11, 10:10 PM MDT | Severe Thunderstorm Warning | BIS | Grant | 65 min |
Nearby
Severe Thunderstorm Warnings in North Dakota, 1989Every severe thunderstorm warning in 1989
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.