Alert archive / North Dakota / Tornado Warnings in 1991
Tornado Warning 5, NWS Bismarck, ND
NWS Bismarck, ND issued this tornado warning at Jun 8, 1991, 5:38 PM MDT for Bowman County, Slope County, North Dakota. It was in force for 37 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
- Jun 8, 1991, 5:38 PM MDT (23:38 UTC)
- Expired
- Jun 8, 1991, 6:15 PM MDT
- In force
- 37 min
- Issued by
- NWS Bismarck, ND
- Area
- Whole counties
Counties Bowman County, ND, Slope County, ND
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Jun 8, 5:45 PM MDT | Hail 1 | Slope, ND | |
| Jun 8, 6:00 PM MDT | Tornado F0 | Slope, 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 12:00Z, 11.6 hours before the alert went out and 220 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
- 22 J/kg
- Mixed-layer CIN
- -69 J/kg
- Mixed-layer LCL
- 865 m above ground
- 0-6 km bulk shear
- 23 kt
- 0-1 km storm-relative helicity
- 10 m²/s²
- 0-3 km storm-relative helicity
- 36 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000
TTAA00 KBIS 082338
TORBIS
NDC011-087-090015-
BULLETIN - IMMEDIATE BROADCAST REQUESTED/EBS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE BISMARCK ND
538 PM MDT SAT JUN 8 1991
THE NATIONAL WEATHER SERVICE HAS ISSUED A TORNADO WARNING
EFFECTIVE UNTIL 615 PM MDT FOR PEOPLE IN THE FOLLOWING
COUNTIES
IN THE SOUTHWEST PART OF NORTH DAKOTA
EASTERN BOWMAN...SOUTHEAST SLOPE
AT 530 PM MDT A SHERIFF SPOTTED A FUNNEL CLOUD 6 MILES NORTHWEST
OF BOWMAN...OR 55 MILES SOUTHWEST OF DICKINSON MOVING NORTHEAST
AT 20 MPH.
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 AND 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, Jun 8, 3:55 PM MDT, 1 hour 43 minutes before
NDZ002>003-005-092250- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE WILLISTON ND 450 PM CDT SAT JUN 8 1991 ...SEVERE THUNDERSTORM WATCH IN EFFECT FOR PORTIONS OF WESTERN NORTH DAKOTA UNTILL 11 PM CDT... ...THUNDERSTORMS WITH HEAVY RAIN CONTINUE OVER WESTERN NORTH DAKOTA... AT 445 PM CDT...NATIONAL WEATHER SERVICE RADAR IN WILLISTON INDICATED THUNDERSTORMS WITH VERY HEAVY RAIN 40 MILES NORTHWEST OF DICKINSON IN EAST CENTRAL BILLINGS COUNTY. THUNDERSTORMS WERE ALSO OCCURRING 50 MILES NORTH OF DICKINSON IN CENTRAL DUNN COUNTY OVER THE TOWNS OF MANNING AND KILLDEER. NO SEVERE WEATHER HAS BEEN REPORTED WITH THESE STORMS BUT THEY HAVE PRODUCED VERY HEAVY RAIN. THESE STORMS WERE MOVING TO THE NORTHEAST AT 15 MPH. THESE STORMS ARE CAPABLE OF HEAVY RAINS...HAIL...GUSTY WINDS AND DEADLY LIGHTNING STRIKES. IF THREATENING WEATHER APRAOCHES YOUR AREA MOVE TO A SAVE SHELTER. THESE STORMS ARE MOVING OVER AREAS WHERE PREVIOUS STORMS HAVE BEEN AND FLOODING OF LOW LYING AREAS IS POSSIBLE. DO NOT ATTEMPT TO CROSS ROADWAYS THAT ARE WATER COVERED. RICHMOND
Special weather statement, Jun 8, 4:19 PM MDT, 1 hour 19 minutes before
NDZ003>014-082330- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE BISMARCK ND 515 PM CDT SAT JUN 8 1991 ...A SEVERE THUNDERSTORM WATCH IS IN EFFECT UNTIL 11 PM CDT FOR A LARGE PORTION OF WEST CENTRAL AND CENTRAL NORTH DAKOTA... A 510 PM CDT WEATHER RADAR INDICATED A LINE OF THUNDERSTORMS EXTENDING FROM 20 MILES SOUTHWEST OF DICKINSON TO 50 MILES SOUTHWEST OF MINOT. THE THUNDERSTORMS WERE MOVING NORTHEAST AT 20 MPH AND WILL PASS NEAR THE TOWNS OF DICKINSON...MANNING...AND GOLDEN VALLEY. THESE STORMS WHICH LIKELY CONTAIN SMALL HAIL...GUSTY WINDS AND VERY HEAVY RAIN HAVE THE POTENTIAL TO BECOME SEVERE AT ANY TIME. ALSO...THE HEAVY RAIN MAY CAUSE LOCALIZED FLOODING. ANOTHER COUPLE OF CLUSTERS OF THUNDERSTORMS WERE IN THE NORTHEAST PART OF THE STATE...25 MILES NORTHWEST...AND 25 MILES SOUTHWEST OF DEVILS LAKE. TOWNS NEAR THE PATH OF THESE THUNDERSTORMS INCLUDE LEEDS... CHURCHES FERRY...OBERON AND DEVILS LAKE. THESE THUNDERSTORMS M8AY ALSO CONTAIN SMALL HAIL...HEAVY RAIN AND GUSTY WINDS. IF THREATENING WEATHER APPROACHES SEEK SHELTER IMMEDIATELY. DO NOT CROSS FLOOD ROADWAYS. LEBLANG
Special weather statement, Jun 8, 4:47 PM MDT, 51 minutes before
NDZ002-003-005-092350- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE WILLISTON ND 445 PM CDT SAT JUN 8 1991 ...SEVERE THUNDERSTORM WATCH IN EFFECT FOR PORTIONS OF WESTERN NORTH DAKOTA UNTIL 11 PM CDT...10 PM MDT... ...SEVERE THUNDERSTORM WARNING FOR CENTRAL DUNN COUNTY HAS BEEN CANCELLED... AT 445 PM MDT...NATIONAL WEATHER SERVICE RADAR IN WILLISTON INDICATED THE SEVERE THUNDERSTORM THAT WAS SOUTHWEST OF KILLDEER IN CENTRAL DUNN COUNTY HAS DECREASED IN INTENSITY DURING THE PAST 15 MINUTES. NO SEVERE WEATHER HAS BEEN REPORTED WITH THIS STORM. OTHER STRONG THUNDERSTORMS WERE OCCURRING 65 MILES SOUTHEAST OF WILLISTON...IN SOUTHEAST MOUNTRAIL COUNTY...20 MILES WEST OF PARSHALL. MOVEMENT OF THUNDERSTORMS WAS TO THE NORTHEAST AT 20 MPH. THESE STORMS WILL LIKELY PRODUCE HEAVY RAIN...HAIL...GUSTY WIND...AND DEADLY LIGHTNING. IF THUNDERSTORMS MOVE INTO YOUR AREA...GO INSIDE TO A PLACE OF SAFETY. THESE STORMS ARE MOVING OVER YAREAS WHERE PREVIOUS STORMS HAVE BEEN AND FLOODING OF LOW LYING AREAS IS POSSIBLE. DO NOT ATTEMPT TO CROSS ROADWAYS THAT ARE WATER COVERED. MARTIN
Special weather statement, Jun 8, 5:03 PM MDT, 35 minutes before
NDZ003>014-090000- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE BISMARCK ND 600 PM CDT SAT JUN 8 1991 ...A SEVERE THUNDERSTORM WATCH IS IN EFFECT UNTIL 11 PM CDT FOR A LARGE PORTION OF WEST CENTRAL AND CENTRAL NORTH DAKOTA... AT 555 PM CDT WEATHER RADAR INDICATED A LINE OF THUNDERSTORMS EXTENDING FROM 70 MILES SOUTHWEST OF DICKINSON...NEAR BOWMAN TO 40 MILES SOUTHWEST OF MINOT. THE THUNDERSTORMS WERE MOVING NORTHEAST AT 20 MPH. THE STRONGEST THUNDERSTORM WAS 25 MILES SOUTHWEST OF DICKINSON AND MAY PASS NEAR BELFIELD AND SOUTH HEART. THESE THUNDERSTORMS...WHICH CONTAIN SMALL HAIL...GUSTY WINDS AND VERY HEAVY RAIN...HAVE THE POTENTIAL TO BECOME SEVERE AT ANY TIME. FOR THAT REASON PERSONS IN WESTERN NORTH DAKOTA SHOULD SEEK SHELTER IF THREATENING WEATHER APPROACHES. ANOTHER LINE OF THUNDERSTORMS EXTENDED FROM THE 65 MILES SOUTH OF JAMESTOWN TO THE DEVILAS LAKE AREA. THE STRONGEST THUNDERSTORMS WERE IN BENSON COUNTY...15 TO 30 pMILES WEST OF DEVILS LAKE. THESE PERSISTENT THUNDERSTORMS MAY CAUSE SOME LOCALIZED FLOODING. RESIDENTS SHOULD NOT CROSS FLOODED ROADS AND BE PREPARED TO LEAVE FLOOD PRONE AREAS. LEBLANG
Special weather statement, Jun 8, 5:08 PM MDT, 30 minutes before
NDZ003>014-090000- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE BISMARCK ND 600 PM CDT SAT JUN 8 1991 ...A SEVERE THUNDERSTORM WATCH IS IN EFFECT UNTIL 11 PM CDT FOR A LARGE PORTION OF WEST CENTRAL AND CENTRAL NORTH DAKOTA... AT 555 PM CDT WEATHER RADAR INDICATED A LINE OF THUNDERSTORMS EXTENDING FROM 70 MILES SOUTHWEST OF DICKINSON...NEAR BOWMAN TO 40 MILES SOUTHWEST OF MINOT. THE THUNDERSTORMS WERE MOVING NORTHEAST AT 20 MPH. THE STRONGEST THUNDERSTORM WAS 25 MILES SOUTHWEST OF DICKINSON AND MAY PASS NEAR BELFIELD AND SOUTH HEART. THESE THUNDERSTORMS...WHICH CONTAIN SMALL HAIL...GUSTY WINDS AND VERY HEAVY RAIN...HAVE THE POTENTIAL TO BECOME SEVERE AT ANY TIME. FOR THAT REASON PERSONS IN WESTERN NORTH DAKOTA SHOULD SEEK SHELTER IF THREATENING WEATHER APPROACHES. ANOTHER LINE OF THUNDERSTORMS EXTENDED FROM THE 65 MILES SOUTH OF JAMESTOWN TO THE DEVILS LAKE AREA. THE STRONGEST THUNDERSTORMS WERE IN BENSON COUNTY...15 TO s30 MILES WEST OF DEVILS LAKE. THESE PERSISTENT THUNDERSTORMS MAY CAUSE SOME LOCALIZED FLOODING. RESIDENTS SHOULD NOT CROSS FLOODED ROADS AND BE PREPARED TO LEAVE FLOOD PRONE AREAS. LEBLANG
Special weather statement, Jun 8, 5:08 PM MDT, 30 minutes before
NDZ002-003-005-092350- SPECIAL WEATHER STATEMENT...CORRECT FOR ISSUANCE TIME... NATIONAL WEATHER SERVICE WILLISTON ND 545 PM CDT SAT JUN 8 1991 ...SEVERE THUNDERSTORM WATCH IN EFFECT FOR PORTIONS OF WESTERN NORTH DAKOTA UNTIL 11 PM CDT...10 PM MDT... ...SEVERE THUNDERSTORM WARNING FOR CENTRAL DUNN COUNTY HAS BEEN CANCELLED... AT 445 PM MDT...NATIONAL WEATHER SERVICE RADAR IN WILLISTON INDICATED THE SEVERE THUNDERSTORM THAT WAS SOUTHWEST OF KILLDEER IN CENTRAL DUNN COUNTY HAS DECREASED IN INTENSITY DURING THE PAST 15 MINUTES. NO SEVERE WEATHER HAS BEEN REPORTED WITH THIS STORM. OTHER STRONG THUNDERSTORMS WERE OCCURRING 65 MILES SOUTHEAST OF WILLISTON...IN SOUTHEAST MOUNTRAIL COUNTY...20 MILES WEST OF PARSHALL. MOVEMENT OF THUNDERSTORMS WAS TO THE NORTHEAST AT 20 MPH. THESE STORMS WILL LIKELY PRODUCE HEAVY RAIN...HAIL...GUSTY WIND...AND DEADLY LIGHTNING. IF THUNDERSTORMS MOVE INTO YOUR AREA...GO INSIDE TO A PLACE OF SAFETtY. THESE STORMS ARE MOVING OVER AREAS WHERE PREVIOUS STORMS HAVE BEEN AND FLOODING OF LOW LYING AREAS IS POSSIBLE. DO NOT ATTEMPT TO CROSS ROADWAYS THAT ARE WATER COVERED. MARTIN
The office that day
Everything else NWS Bismarck, ND issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 8, 4:08 PM MDT | Severe Thunderstorm Warning | BIS | Dunn | 67 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.