Alert archive / North Dakota / Severe Thunderstorm Warnings in 1990
Severe Thunderstorm Warning 73, NWS Bismarck, ND
NWS Bismarck, ND issued this severe thunderstorm warning at Aug 24, 1990, 3:05 PM MDT for Mercer County, Oliver County, North Dakota. It was in force for 40 min.
The area
The counties it named.
The facts
- Issued
- Aug 24, 1990, 3:05 PM MDT (21:05 UTC)
- Expired
- Aug 24, 1990, 3:45 PM MDT
- In force
- 40 min
- Issued by
- NWS Bismarck, ND
- Area
- Whole counties
Counties Mercer County, ND, Oliver County, ND
The radar
The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.
The nearest sounding before it
Bismarck Municip, ND (KBIS), launched 12:00Z, 9.1 hours before the alert went out and 83 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
- 94 J/kg
- Mixed-layer CIN
- -276 J/kg
- Mixed-layer LCL
- 1860 m above ground
- 0-6 km bulk shear
- 31 kt
- 0-1 km storm-relative helicity
- 82 m²/s²
- 0-3 km storm-relative helicity
- 76 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 242116 COR
SVRBIS
NDC057-065-242145-
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING ...CORRECTED...
NATIONAL WEATHER SERVICE BISMARCK ND
305 PM MDT FRI AUG 24 1990
THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM
WARNING EFFECTIVE UNTIL 345 PM MDT FOR PEOPLE IN THE FOLLOWING
COUNTIES
IN THE CENTRAL PART OF NORTH DAKOTA
MERCER...OLIVER
THIS WARNING INCLUDES THE TOWNS OF BEULAH...HAZEN...AND
HANNOVER
.
AT 255 PM MDT WEATHER RADAR INDICATED A CLUSTER OF SEVERE
THUNDERSTORMS NEAR BEULAH...70 MILES NORTHWEST OF BISMARCK.
THE STORMS WERE MOVING NORTHEAST AT 15 MPH. AT 250 PM MDT
85 MPH WINDS WERE MEASURED BY A RADIO STATION IN BEULAH.
SEVERE THUNDERSTORMS PRODUCE DAMAGING WINDS IN EXCESS OF 55
MPH...DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN.
FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR
OF YOUR HOME OR BUSINESS. HEAVY RAIN MAY FLOOD ROADWAYS QUICKLY
SO AVOID DRIVING INTO AREAS WHERE WATER COVERS THE ROAD.
THIS SLOW MOVING THUNDERSTORM MAY CAUSE FLOODING OF SMALL STREAMS
AND UNDERPASSES.
RSL ...CORRECTED ADDED STORM MOVEMENT...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 24, 12:33 PM MDT, 2 hours 32 minutes before
NDZ001>011-241930- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE BISMARCK ND 135 PM CDT FRI AUG 24 1990 ...THUNDERSTORMS ARE MOVING THROUGH CENTRAL NORTH DAKOTA... AT 125 PM CDT WEATHER RADAR CONTINUED TO DETECT A LONG LINE OF THUNDERSTORMS FROM THE CANADIAN BORDER 70 MILES NORTHWEST OF MINOT TO 70 MILES SOUTHEAST OF DICKINSON. THE LINE WAS MOVING EAST AT 15 MPH. THE STRONGEST THUNDERSTORM IN THE LINE WAS LOCATED 50 MILES WEST OF BISMARCK AND WAS MOVING NORTHEAST AT 20 MPH. IT WILL MOVE INTO OLIVER COUNTY AND PASS NEAR HANNOVER AND CENTER BY 230 PM CDT. THIS CELL LIKELY CONTAINS SMALL HAIL...VERY HEAVY RAIN AND GUSTY WINDS TO 50 MPH. THE ATMOSPHERE OVER ALL OF NORTH DAKOTA IS BECOMING VERY UNSTABLE AS THE AFTERNOON PROGRESSES AND ANY ONE OF THE THUNDERSTORMS IN THE LINE HAS THE POTENTIAL TO BECOME SEVERE AND PRODUCE LARGE HAIL AND DAMAGING WINDS. PERSONS IN CENTRAL NORTH DAKOTA SHOULD BE PREPARED TO SEEK SHELTER IF THREATENING WEATHER APPROACHES. LEBLANG
Special weather statement, Aug 24, 1:22 PM MDT, 1 hour 43 minutes before
NDZ001>011-241900- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE BISMARCK ND 215 PM CDT FRI AUG 24 1990 ...STRONG THUNDERSTORMS ARE MOVING THROUGH CENTRAL NORTH DAKOTA... AT AT 210 PM CDT WEATHER RADAR CONTINUED TO DETECT A LINE OF THUNDERSTORMS...SOME WITH VERY HEAVY RAIN AND SMALL HAIL...MOVING EAST AT 15 MPH THROUGH CENTRAL NORTH DAKOTA. THE LINE EXTENDED FROM THE CANADIAN BORDER 70 MILES NORTH OF MINOT TO THE SOUTH DAKOTA BORDER 70 MILES SOUTHEAST OF DICKINSON. THE STRONGEST THUNDERSTORM WAS LOCATED 15 MILES SOUTHWEST OF CARSON... OR 70 MILES SOUTHWEST OF BISMARCK. THIS CELL WAS MOVING NORTHEAST AT 20 MPH AND WILL PASS NEAR THE TOWNS OF CARSON...LARK...AND FLASHER BY 300 PM CDT. THIS CELL LIKELY CONTAINS SMALL HAIL...GUSTY WINDS TO 50 MPH AND VERY HEAVY RAIN. OTHER STRONG THUNDERSTORM CELLS WERE NEAR CENTER AND NEW SALEM. THE ATMOSPHERE IS VERY UNSTABLE OVER NORTH DAKOTA AND THE POTENTIAL FOR SEVERE WEATHER IS HIGH.. A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 8 PM CDT FOR MOST OF WESTERN AND CENTRAL NORTH DAKOTA. PERSONS SHOULD BE PREPARED TO SEEK SHELTER IF THREATENING WEATHER APPROACHES. LEBLANG
Special weather statement, Aug 24, 1:33 PM MDT, 1 hour 32 minutes before
NDZ003-005-242030- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE WILLISTON ND 230 PM CDT FRI AUG 24 1990 ...THUNDERSTORMS DEVELOPING OVER NORTHWESTERN NORTH DAKOTA... AT 225 PM CDT...NATIONAL WEATHER SERVICE RADAR IN WILLISTON INDICATED VERY STRONG THUNDERSTORMS 50 MILES SOUTHEAST OF WILLISTON IN NORTHERN DUNN COUNTY. THESE THUNDERSTORMS WERE MOVING TO THE NORTHEAST AT 20 MPH AND WILL LIKELY MOVE INTO SOUTHERN MOUNTRAIL COUNTY WITHIN THEE NEXT 45 MINUTES. THESE THUNDERSTORMS ARE CAPABLE OF PRODUCING DEADLY LIGHTNING STRIKES... STRONG WIND...HAIL AND BRIEF HEAVY RAIN. IF THESE THUNDERSTORMS APPROACH YOUR AREA...SEEK SHELTER INDOORS IMMEDIATELY. MARTIN
Special weather statement, Aug 24, 1:38 PM MDT, 1 hour 27 minutes before
NDZ003-005-242030- SPECIAL WEATHER STATEMENT...CORRECTION TO ADD WATCH... NATIONAL WEATHER SERVICE WILLISTON ND 230 PM CDT FRI AUG 24 1990 ...THUNDERSTORMS DEVELOPING OVER NORTHWESTERN NORTH DAKOTA... AT 225 PM CDT...NATIONAL WEATHER SERVICE RADAR IN WILLISTON INDICATED VERY STRONG THUNDERSTORMS 50 MILES SOUTHEAST OF WILLISTON IN NORTHERN DUNN COUNTY. THESE THUNDERSTORMS WERE MOVING TO THE NORTHEAST AT 20 MPH AND WILL LIKELY MOVE INTO SOUTHERN MOUNTRAIL COUNTY WITHIN THE NEXT 45 MINUTES. THESE THUNDERSTORMS ARE CAPABLE OF PRODUCING DEADLY LIGHTNING STRIKES... STRONG WIND...HAIL AND BRIEF HEAVY RAIN. IF THESE THUNDERSTORMS APPROACH YOUR AREA...SEEK SHELTER INDOORS IMMEDIATELY. REPMEMBER...A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 800 PM CDT FOR A LARGE PORTION OF CENTRAL AND WESTERN NORTH DAKOTA. THIS WATCH DOES INCLUDE ALL OF DUNN AND MOUNTRAIL COUNTIES. MARTIN
Special weather statement, Aug 24, 2:35 PM MDT, 30 minutes before
NDZ003-005-242130- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE WILLISTON ND 330 PM CDT FRI AUG 24 1990 ...THUNDERSTORMS DECREASING OVER NORTHWEST NORTH DAKOTA... AT 325 PM CDT...NATIONAL WEATHER SERVICE RADAR IN WILLISTON INDICATED STRONG THUNDERSTORMS 60 MILES NORTHEAST OF WILLISON IN NORTHEASTERN MOUNTRAIL COUNTY...AND 75 MILES SOUTHEAST OF WILLISTON IN NORTHEASTERN DUNMN COUNTY. THESE THUNDERSTORMS WERE MOVING TO THE NORTHEAST AT 15MPH. THESE THUNDERSTORMS ARE CAPABLE OF PRODUCING DEADLY LIGHTNING STRIKES... STRONG WIND...HAIL AND BRIEF HEAVY RAIN. IF THESE THUNDERSTORMS APPROACH YOUR AREA...SEEK SHELTER INDOORS IMMEDIATELY. REMEMBER...A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 800 PM CDT/ 700 PM MDT FOR A LARGE PORTION OF CENTRAL AND WESTERN NORTH DAKOTA. THIS WATCH DOES INCLUDE ALL OF MOUNTRAIL AND DUNN COUNTIES. MARTIN
Special weather statement, Aug 24, 2:41 PM MDT, 24 minutes before
NDZ003-005-242130- SPECIAL WEATHER STATEMENT...CORRECTION... NATIONAL WEATHER SERVICE WILLISTON ND 330 PM CDT FRI AUG 24 1990 ...THUNDERSTORMS DECREASING OVER NORTHWEST NORTH DAKOTA... AT 325 PM CDT...NATIONAL WEATHER SERVICE RADAR IN WILLISTON INDICATED STRONG THUNDERSTORMS 60 MILES NORTHEAST OF WILLISON IN NORTHEASTERN MOUNTRAIL COUNTY...AND 75 MILES SOUTHEAST OF WILLISTON IN NORTHEASTERN DUNN COUNTY. THESE THUNDERSTORMS HAVE DECREASED IN INTENSITY OVER THE PAST HOUR. THESE THUNDERSTORMS WERE MOVING TO THE NORTHEAST AT 15MPH. THESE THUNDERSTORMS ARE CAPABLE OF PRODUCING DEADLY LIGHTNING STRIKES... STRONG WIND...HAIL AND BRIEF HEAVY RAIN. IF THESE THUNDERSTORMS APPROACH YOUR AREA...SEEK SHELTER INDOORS IMMEDIATELY. REMEMBER...A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 800 PM CDT...700 PM MDT FOR A LARGE PORTION OF CENTRAL AND WESTERN NORTH DAKOTA. THIS WATCH DOES INCLUDE ALL OF MOUNTRAIL AND DUNN COUNTIES. MARTIN
The office that day
Everything else NWS Bismarck, ND issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 24, 1:51 PM MDT | Severe Thunderstorm Warning | BIS | Morton | 39 min |
| Aug 24, 2:08 PM MDT | Severe Thunderstorm Warning | BIS | Mercer | 52 min |
| Aug 24, 3:33 PM MDT | Severe Thunderstorm Warning | BIS | Sheridan | 57 min |
Nearby
Severe Thunderstorm Warnings in North Dakota, 1990Every severe thunderstorm warning in 1990
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.