Alert archive / North Dakota / Tornado Warnings in 1991
Tornado Warning 4, NWS Bismarck, ND
NWS Bismarck, ND issued this tornado warning at May 31, 1991, 12:45 AM CDT for Burleigh County, North Dakota. It was in force for 25 min.
The area
The counties it named.
The facts
- Issued
- May 31, 1991, 12:45 AM CDT (05:45 UTC)
- Expired
- May 31, 1991, 1:10 AM CDT
- In force
- 25 min
- Issued by
- NWS Bismarck, ND
- Area
- Whole counties
County Burleigh County, ND
The nearest sounding before it
Bismarck Municip, ND (KBIS), launched 00:00Z, 5.8 hours before the alert went out and 29 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
- 470 J/kg
- Mixed-layer CIN
- -49 J/kg
- Mixed-layer LCL
- 1822 m above ground
- 0-6 km bulk shear
- 25 kt
- 0-1 km storm-relative helicity
- 21 m²/s²
- 0-3 km storm-relative helicity
- 43 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.4
The text
As transmitted, in the capitals the NWS used until 2016.
000
TTAA00 KBIS 310545
TORBIS
NDC015-310615-
BULLETIN - IMMEDIATE BROADCAST REQUESTED/EBS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE BISMARCK ND
1245 AM CDT FRI MAY 31 1991
THE NATIONAL WEATHER SERVICE HAS ISSUED A TORNADO WARNING
EFFECTIVE UNTIL 115 AM CDT FOR PEOPLE IN THE FOLLOWING COUNTY
IN THE CENTRAL PART OF NORTH DAKOTA
NORTHERN BURLEIGH
AT 1243 AM CDT WEATHER RADAR INDICATED A POSSIBLE TORNADO 10
MILES NORTH OF BISMARCK MOVING NORTH AT 30 MPH.
THE TOWN OF BALDWIN IS NEAR THE PATH OF THIS STORM.
IF YOU ARE IN THE PATH OF THIS TORNADO...GO TO A BASEMENT SHELTER
IF AVAILABLE...OTHERWISE TO A CENTRAL INTERIOR ROOM ON THE LOWEST
FLOOR...STAY AWAY FROM WINDOWS. ABANDON CARS rAND MOBILE HOMES.
RSLWhat forecasters said that day
The local office's own words before this tornado 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, May 30, 7:08 PM CDT, 5 hours 37 minutes before
NDZ003-004-006-007-008-310100- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE BISMARCK ND 708 PM CDT THU MAY 30 1991 ...THUNDERSTORMS IN CENTRAL AND SOUTHWEST NORTH DAKOTA... AT 700 PM CDT...BISMARCK RADAR SHOWED A LARGE AREA OF SCATTERED SHOWERS AND THUNDERSTORMS FROM DICKINSON TO THE EAST END OF LAKE SAKAKAWEA TO BISMARCK TO LEMMON SOUTH DAKOTA TO DICKINSON. TWO STRONG STORMS WERE LOCATED 40 MILES AND 60 MILES SOUTHWEST OF BISMARCK...OR NEAR THE EAST AND WEST ENDS OF LAKE TSCHIDA. THESE STORMS CONTAINED HEAVY RAIN AND POSSIBLE HAIL. THEY WERE MOVING VERY SLOW TO THE NORTH. IN THE SOUTHWEST TIP OF THE STATE...THUNDERSTORMS WERE WEAKENING AS THEY MOVED FROM SOUTH DAKOTA INTO BOWMAN COUNTY JUST EAST OF THE CITY OF BOWMAN. < LM
Special weather statement, May 30, 8:29 PM CDT, 4 hours 16 minutes before
NDZ003-004-005-006-007-008-009-010-310200- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE BISMARCK ND 820 PM CDT THU MAY 30 1991 ...THUNDERSTORMS IN CENTRAL AND SOUTHWEST NORTH DAKOTA... AT 810 PM CDT...BISMARCK RADAR SHOWED A BAND OF SHOWERS AND THUNDERSTORMS ABOUT 50 MILES WIDE EXTENDING FROM 20 MILES EAST OF BOTTINEAU TO THE EAST END OF LAKE SAKAKAWEA TO 50 MILES WEST OF BISMARCK TO 65 MILES SOUTH OF DICKINSON. THERE WERE A FEW VERY STRONG STORMS IN THIS BAND. ONE WAS LOCATED 50 MILES WEST OF BISMARCK NEAR GLEN ULLIN. THIS STORM HAD VERY HEAVY RAIN AND POSSIBLE HAIL. THE SECOND STRONG STORM WAS 65 MILES NORTHWEST OF BISMARCK NEAR GARRISON DAM...AND THE THIRD STRONG STORM WAS LOCATED ABOUT 45 MILES SOUTH OF MINOT. ALL OF THESE STORMS WERE MOVING NORTH AT 15 MPH. > LM
Special weather statement, May 30, 10:05 PM CDT, 2 hours 40 minutes before
NDZ003-004-005-006-007-008-009-010-310400- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE BISMARCK ND 1005 PM CDT THU MAY 30 1991 ...THUNDERSTORMS IN WESTERN NORTH DAKOTA... AT 1005 PM CDT...BISMARCK RADAR SHOWED A BROAD BAND OF SHOWERS AND THUNDERSTORMS. IT WAS 50 MILES WIDE AND THE CENTER OF THE BAND EXTENDED FROM MINOT TO 30 MILES WEST OF BISMARCK TO 70 MILES SOUTHEAST OF DICKINSON. THERE WERE A FEW VERY STRONG STORMS IN THIS BAND JUST WEST OF THE BISMARCK/MANDAN AREA. ONE WAS 35 MILES NORTHWEST OF BISMARCK OR 10 MILES SOUTH OF CENTER. THE SECOND WAS 25 MILES WEST OF BISMARCK NEAR ALMONT...AND THE THIRD WAS 35 MILES SOUTHWEST OF BISMARCK OR 5 MILES NORTHWEST OF CARSON. THESE STORMS CONTAINED HEAVY RAIN AND POSSIBLE HAIL. THEY WERE MOVING NORTHEAST AT 20 MPH. LM
Special weather statement, May 30, 11:43 PM CDT, 1 hour 2 minutes before
NDZ005-006-007-008-009-010-012-015-016-310400- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE BISMARCK ND 1140 PM CDT THU MAY 30 1991 ...THUNDERSTORMS IN CENTRAL AND NORTHEAST NORTH DAKOTA... AT 1132 PM CDT...BISMARCK RADAR SHOWED VERY STRONG THUNDERSTORMS IN NORTHEAST NORTH DAKOTA. THEY WERE IN A BAND 20 MILES WIDE FROM THE CANADIAN BORDER 70 MILES NORTHEAST OF DEVILS LAKE TO A POINT NEAR FILLMORE...ABOUT 40 MILES WEST OF DEVILS LAKE. ONE VERY STRONG THUNDERSTORM WAS LOCATED IN SOUTHWEST TOWNER COUNTY ABOUT 40 MILES NORTHWEST OF DEVILS LAKE. THIS STORM HAD VERY HEAVY RAIN AND POSSIBLE HAIL. OTHER LESS INTENSE STORMS WERE IN THE SOUTH CENTRAL. THEY WERE IN A LINE FROM 30 MILES NORTH OF BISMARCK TO MANDAN TO 60 MILES SOUTH OF BISMARCK. THESE STORMS LIKELY CONTAINED BRIEF HEAVY RAIN AND SMALL HAIL. < LM
Special weather statement, May 31, 12:01 AM CDT, 44 minutes before
NDZ006-007-007-008-011-310600- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE BISMARCK ND 1200 AM CDT FRI MAY 31 1991 ...STRONG THUNDERSTORMS MOVING INTO THE BISMARCK/MANDAN AREA... AT 1155 PM CDT WEATHER RADAR INDCATED A LINE OF STRONG THUNDERSTORMS 15 MILES SOUTH OF BISMARCK MOVING NORTH AT 35 MPH. THE THUNDERSTORMS WILL MOVE THROUGH THE BISMARCK/MANADAN AREA BETWEEN 1210 AM AND 1 AM CDT. WINDS TO 50 MPH...SMALL HAIL...VERY HEAVY RAIN..7.AND DANGEROUS LIGHTNING WILL ACCOMPANY THESE STORMS. BE PREPARED TO TAKE SHELTER AS THESE THUNDERSTORMS APPROACH. LEBLANG
The office that day
Everything else NWS Bismarck, ND issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 30, 10:43 PM CDT | Tornado Warning | BIS | Ramsey, Towner | 47 min |
Nearby
Tornado Warnings in North Dakota, 1991Every tornado warning in 1991Tornadoes in 1991
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.