Alert archive / North Dakota / Severe Thunderstorm Warnings in 1990
Severe Thunderstorm Warning 5, NWS Grand Forks, ND
NWS Grand Forks, ND issued this severe thunderstorm warning at Jun 1, 1990, 9:32 PM CDT for Cass County, North Dakota. It was in force for 58 min. 1 report 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 1, 1990, 9:32 PM CDT (02:32 UTC)
- Expired
- Jun 1, 1990, 10:30 PM CDT
- In force
- 58 min
- Issued by
- NWS Grand Forks, ND
- Area
- Whole counties
County Cass 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 |
|---|---|---|---|
| Jun 1, 10:22 PM CDT | Hail 0.75 | Cass, 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
Aberdeen, SD (KHON), launched 00:00Z, 2.5 hours before the alert went out and 243 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
- 1812 J/kg
- Mixed-layer CIN
- -17 J/kg
- Mixed-layer LCL
- 1129 m above ground
- 0-6 km bulk shear
- 44 kt
- 0-1 km storm-relative helicity
- 139 m²/s²
- 0-3 km storm-relative helicity
- 158 m²/s²
- Significant tornado parameter
- 1.1
- Supercell composite
- 6.4
The text
As transmitted, in the capitals the NWS used until 2016.
000
TTAA00 KFAR 020232
SVRFAR
NDC017-020330-
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE FARGO ND
932 PM CDT FRI JUN 1 1990
THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM
WARNING EFFECTIVE UNTIL 1030 PM CDT FOR PEOPLE IN THE FOLLOWING
COUNTIES
IN THE EAST CENTRAL PART OF NORTH DAKOTA
CASS...THE CITIES OF FARGO/MOORHEAD
AT 925 PM CDT...RADAR INDICATED A LINE OF SEVERE THUNDERSTORMS
FROM 30 MILES NORTHWEST TO 20 MILES SOUTHWEST OF FARGO NORTH
DAKOTA. THIS LINE OF THUNDERSTORMS WAS MOVING TO THE NORTHEAST
AT 25 MILES AN HOUR.
AT 920 PM CDT...WIND DAMAGE WAS REPORTED AT THE NDSU SEED FARM
IN CASSELTON NORTH DAKOTA OR 20 MILES WEST OF FARGO.
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
...AVOID DRIVING INTO AREAS WHERE WATER COVERS THE ROAD.
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...YOUP SHOULD GO TO A PLACE OF
SAFETY IMMEDIATELY. REPORT ALL SEVERE WEATHER TO YOUR LOCAL LAW
ENFORCEMENT AGENCY AFTER THE STORM PASSES.
MBWhat 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
Local storm report, Jun 1, 8:32 PM CDT, 1 hour before
STORM REPORTS
NATIONAL WEATHER SERVICE FARGO ND
835 PM CDT FRI JUN 1 1990
TIME EVENT
700 PM COOP OBSERVER AT LITCHVILLE NORTH DAKOTA REPORTED EXTREMELY
HEAVY RAIN AND PEA TO MARBLE SIZE HAIL.
719 PM GRANT COUNTY MINNESOTA SHERIFFS OFFICE REPORTED GOLF BALL SIZE
HAIL AT BARRETT MINNESOTA OR 9 MILES SOUTHEAST OF ELBOW LAKE.
729 PM PEA SIZE HAIL REPORTED IN FERGUS FALLS MINNESOTA BY OTTER TAIL
COUNTY SHERIFFS OFFICE.
736 PM COOP OBSERVER 8 MILES EAST OF ENDERLIN NORTH DAKOTA REPORTED
1 INCH TO 1 1/2 INCH SIZE HAIL.
750 PM PUBLIC REPORT OF FUNNEL CLOUD 10 MILES SOUTH OF FERGUS FALLS
MINNESOTA. REPORT RELAYED BY FERGUS FALLS POLICE DEPARTMENT.
MBNearby
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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.