Alert archive / North Dakota / Severe Thunderstorm Warnings in 1990
Severe Thunderstorm Warning 43, NWS Grand Forks, ND
NWS Grand Forks, ND issued this severe thunderstorm warning at Sep 7, 1990, 1:14 AM CDT for LaMoure County, North Dakota. It was in force for 61 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
- Sep 7, 1990, 1:14 AM CDT (06:14 UTC)
- Expired
- Sep 7, 1990, 2:15 AM CDT
- In force
- 61 min
- Issued by
- NWS Grand Forks, ND
- Area
- Whole counties
County LaMoure 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 |
|---|---|---|---|
| Sep 7, 1:30 AM CDT | Thunderstorm Wind 52 | La Moure, 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 00:00Z, 6.2 hours before the alert went out and 169 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
- 24 J/kg
- Mixed-layer CIN
- -126 J/kg
- Mixed-layer LCL
- 2508 m above ground
- 0-6 km bulk shear
- 50 kt
- 0-1 km storm-relative helicity
- 25 m²/s²
- 0-3 km storm-relative helicity
- 240 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 KFAR 070614
SVRFAR
NDC003-017-045-070715-
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE FARGO ND
114 AM CDT FRI SEP 7 1990
THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM
WARNING EFFECTIVE UNTIL 215 AM CDT FOR PEOPLE IN THE FOLLOWING
COUNTIES
IN THE EAST CENTRAL PART OF NORTH DAKOTA
BARNES...WESTERN CASS...THE CITY OF VALLEY CITY...
IN THE SOUTHEAST PART OF NORTH DAKOTA
LA MOURE...
AT 108 AM CDT RADAR INDICATED A LINE OF SEVERE THUNDERSTORMS
EXTENDING FROM EXTREME SOUTHERN STEELE COUNTY...50 MILES NORTHWEST
OF FARGO NORTH DAKOTA...NEAR THE TOWNS OF HOPE AND PILLSBURY TO
15 MILES SOUTHWEST OF JAMESTOWN NORTH DAKOTA MOVING SOUTHEAST AT
45 MILES AN HOUR.
THESE THUNDERSTORMS HAVE PRODUCED WINDS IN EXCESS OF 65 MILES AN
HOUR AND GOLF BALL SIZE HAIL AT JAMESTOWN.
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.
THIS IS A DANGEROUS STORM. IF YOU ARE IN ITS PATH...PREPARE FOR
DAMAGING WINDS...LARGE HAIL...AND DEADLY LIGHTNING. PEOPLE OUTSIDE
SHOULD MOVE TO SHELTER...PREFERABLY INSIDE A STRONG BUILDING. ONCE
INSIDE...STAY AWAY FROM WINDOWS.
MORINWhat 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, Sep 7, 12:44 AM CDT, 30 minutes before
NDZ012-013-014-015-016-017-018-MNZ001-006-007-010-011-013-070630- SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE FARGO ND 1235 AM CDT FRI SEP 7 1990 ...INTENSE THUNDERSTORMS WILL BE MOVING INTO SOUTHEAST NORTH DAKOTA... AT 1227 AM CDT...INTENSE THUNDERSTORMS...WITH VERY HEAVY RAIN EXTENDED FROM SOUTHERN GRIGGS COUNTY NEAR COOPERSTOWN...SOUTHWEST INTO STUTSMAN COUNTY...JUST WEST AND NORTHWEST OF JAMESTOWN IN EAST CENTRAL AND CENTRAL NORTH DAKOTA. THESE THUNDERSTORMS WERE MOVING SOUTHEAST AT 45 MILES AN HOUR AND SHOULD MOVE THROUGH STUSTMAN AND GRIGGS COUNTIES INTO LA MOURE AND BARNES COUNTIES OF SOUTHEAST NORTH DAKOTA BY 130 AM. THESE INTENSE THUNDERSTORMS ARE CAPABLE OF PRODUCING LARGE HAIL...VERY HEAVY RAIN...STRONG WIND AND DANGEROUS LIGHTNING AND PERSONS OVER PARTS OF SOUTHEAST AND EAST CENTRAL NORTH DAKOTA SHOULD REMAIN ALERT FOR RAPIDLY CHANGING WEATHER CONDITIONS. A LARGE AREA OF SCATTERED SHOWERS AND THUNDERSTORMS...SOME WITH HEAVY RAIN WAS OVER A PORTION OF NORTHEAST...EAST CENTRAL AND CENTRAL NORTH DAKOTA AND A SMALL PART OF NORTHWEST MINNESOTA. THIS AREA WAS 100 MILES WIDE AND EXTENDED FROM 50 MILES WEST OF JAMESTOWN IN CENTRAL NORTH DAKOTA...NORTHEASTWARD TO AROUND THIEF RIVER FALLS IN NORTHWEST MINNESOTA. THESE SHOWERS AND THUNDERSTORMS WERE ALSO MOVING SOUTHEAST AT 40 TO 45 MILES AN HOUR AND SHOULD MOVE INTO PARTS OF SOUTHEAST NORTH DAKOTA AND WEST CENTRAL MINNESOTA BY 130 AM. SPIES
The office that day
Everything else NWS Grand Forks, ND issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 7, 1:14 AM CDT | Severe Thunderstorm Warning | FGF | Barnes, Cass | 61 min |
| Sep 7, 1:43 AM CDT | Severe Thunderstorm Warning | FGF | Ransom, Richland | 62 min |
| Sep 7, 2:18 AM CDT | Severe Thunderstorm Warning | FGF | Richland, Sargent | 42 min |
| Sep 7, 2:18 AM CDT | Severe Thunderstorm Warning | FGF | Cass | 42 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.