Alert archive / Minnesota / Severe Thunderstorm Warnings in 1990
Severe Thunderstorm Warning 47, NWS Grand Forks, ND
NWS Grand Forks, ND issued this severe thunderstorm warning at Sep 7, 1990, 2:52 AM CDT for Wilkin County, Minnesota. It was in force for 68 min.
The area
The counties it named.
The facts
- Issued
- Sep 7, 1990, 2:52 AM CDT (07:52 UTC)
- Expired
- Sep 7, 1990, 4:00 AM CDT
- In force
- 68 min
- Issued by
- NWS Grand Forks, ND
- Area
- Whole counties
County Wilkin County, MN
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
Aberdeen, SD (KHON), launched 00:00Z, 7.9 hours before the alert went out and 221 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
- 7 J/kg
- Mixed-layer CIN
- -105 J/kg
- Mixed-layer LCL
- 2740 m above ground
- 0-6 km bulk shear
- 33 kt
- 0-1 km storm-relative helicity
- 33 m²/s²
- 0-3 km storm-relative helicity
- 49 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 070752
SVRFAR
MNC167-070900-
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE FARGO ND
252 AM CDT FRI SEP 7 1990
THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM
WARNING EFFECTIVE UNTIL 400 AM CDT FOR PEOPLE IN THE FOLLOWING
COUNTY
IN THE WEST CENTRAL PART OF MINNESOTA
WILKIN
AT 245 AM CDT RADAR INDICATED A LINE OF SEVERE THUNDERSTORMS WHICH
EXTENDED FROM 20 MILES SOUTH TO 55 MILES SOUTHWEST OF FARGO NORTH
DAKOTA...OVER RICHLAND COUNTY. THESE SEVERE THUNDERSTORMS WERE
WERE MOVING SOUTHEAST 50 MILES AN HOUR AND PRODUCED WINDS IN EXCESS
OF 60 MILES AN HOUR AT JAMESTOWN...LITCHVILLE..AND MCLEOD NORTH
DAKOTA TONIGHT.
REMEMBER...SEVERE THUNDERSTORMS CAN AND OCCASIONALLY DO PRODUCE
A TORNADO WITH LITTLE OR NO ADVANCE WARNING...SO BE ON THE LOOKOUT.
IF YOU SPOT A FUNNEL OR A TORNADO YOU SHOULD SEEK SHELTER IN A
REINFORCED BUILDING OR IN AN INTERIOR ROOM AWAY FROM OUTSIDE WAjLLS.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, Sep 7, 12:44 AM CDT, 2 hours 8 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
Nearby
Severe Thunderstorm Warnings in Minnesota, 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.