Severe Thunderstorm Warning 20, NWS Grand Forks, ND

Issued

Jun 19, 1990, 7:47 PM CDT (00:47 UTC)

Expired

Jun 19, 1990, 8:45 PM CDT

In force

58 min

Issued by

NWS Grand Forks, ND

Area

Whole counties

Counties Clay County, MN, Cass County, ND

The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.

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.

000 
TTAA00 KFAR 200047
SVRFAR
NDC017-035-MNC027-200145-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING 
NATIONAL WEATHER SERVICE FARGO ND
747 PM CDT TUE JUN 19 1990

THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM 
WARNING EFFECTIVE UNTIL 845 PM CDT FOR PEOPLE IN THE FOLLOWING 
COUNTIES

   IN THE EAST CENTRAL PART OF NORTH DAKOTA
      CASS...THE CITIES OF FARGO/MOORHEAD...

   IN THE NORTHEAST PART OF NORTH DAKOTA
      GRAND FORKS...

   IN THE NORTHWEST PART OF MINNESOTA
      WESTERN CLAY...

AT 745 PM CDT...RADAR INDICATED A SEVERE THUNDERSTORM 20 TO 35
MILES NORTHWEST OF FARGO...AND JUST SOUTH OF THE GRAND FORKS AIR
FORCE BASE MOVING EAST AT 35 MILES AN HOUR.

REMEMBER...SEVERE THUNDERSTORMS CAN AND OCCASIONALLY DO PRODUCE
A TORNADO WITH LITTLE OR NO ADVANCE WARNING...SO BE ON THE LOOKOUT.

IF THREATENING WEATHER APPROACHES...YOU SHOULD GO TO A PLACE OF
SAFETY IMMEDIATELY.  REPORT ALL SEVERE WEATHER TO YOUR LOCAL LAW
ENFORCEMENT AGENCY AFTER THE STORM PASSES.

ARMSTRONG

In the hours before

NDZ012-013-014-015-016-017-018-MNZ001-006-007-010-011-013- 200025-

SPECIAL WEATHER STATEMENT AND RADAR SUMMARY.
NATIONAL WEATHER SERVICE FARGO ND
635 PM CDT TUE JUN 19 1990

...STRONG THUNDERSTORMS WITH VERY HEAVY RAIN OVER NORTHEAST NORTH
   DAKOTA...

AT 625 PM CDT...STRONG THUNDERSTORMS HAD DEVELOPED OVER NORTHEAST
NORTH DAKOTA IN GRIGGS AND STEELE COUNTYS NEAR THE TOWNS OF COOPERS-
TOWN...HANNAFORD AND DAZY.

THESE STRONG THUNDERSTORMS WERE MOVING EAST AT 35 MILES AN HOUR AND
SHOULD AFFECT THE CITIES OF MAYVILLE AND HILLSBORO BY 730 PM.

BRIEF GUSTY WIND...HEAVY RAIN...FREQUENT LIGHTING AND POSSIBLE HAIL
CAN BE EXPECTED FROM THESE STORMS.

THESE STRONG THUNDERSTORMS WERE LOCATED IN +AN AREA OF SHOWERS AND
THUNDERSTORMS THAT WAS 40 MILES WIDE...AND EXTENDED FROM NORTH OF
 THE INTERNATIONAL BORDER NORTH OF CAVALIER AND PEMBINA COUNTY
IN NORTHEAST NORTH DAKOTA...TO NORTH OF ABERDEEN SOUTH DAKOTA.
PRUITT

STORM REPORTS
NATIONAL WEATHER SERVICE FARGO ND
730 PM CDT TUE JUN 19 1990

TIME          EVENT

625 PM CDT    MC VILLE NE...40 SE DVL REPORTS PEA SIZE HAIL...HVY RAIN
              ...40 TO 45 MPH WIND BY STATE RADIO

705 PM CDT    WALL CLOUD WITH ROTATION JUST NW OF LARIMORE...GRAND FORKS
              COUNTY...REPORTED BY COUNTY SHERIFF

700 PM CDT    COOPERATIVE OBSERVER AT COLGATE ND...SOUTHERN STEELE CO.
              REPORTS PEA TO MARBLyE SIZE HAIL THEIR LOCATION

Severe Thunderstorm Warnings in Minnesota, 1990Severe Thunderstorm Warnings in North Dakota, 1990Every severe thunderstorm warning in 1990

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.