Alert archive / Minnesota / Severe Thunderstorm Warnings in 1991

Severe Thunderstorm Warning 84, NWS Twin Cities, MN

June 28, 1991Todd County, Wadena County, Minnesota

NWS Twin Cities, MN issued this severe thunderstorm warning at Jun 28, 1991, 6:54 PM CDT for Todd County, Wadena County, Minnesota. It was in force for 51 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 28, 1991, 6:54 PM CDT (23:54 UTC)
Expired: Jun 28, 1991, 7:45 PM CDT
In force: 51 min
Issued by: NWS Twin Cities, MN
Area: Whole counties

Counties Todd County, MN, Wadena County, MN

What was reported inside it

Time	Report	Where	Remark
Jun 28, 7:24 PM CDT	Hail 1.75	Todd, MN

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

Minneapolis, MN (KSTC), launched 12:00Z, 11.9 hours before the alert went out and 194 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.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: NaN m above ground
0-6 km bulk shear: 12 kt
0-1 km storm-relative helicity: 34 m²/s²
0-3 km storm-relative helicity: 82 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 1.7

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
TTAA00 KFAR 282354
SVRFAR
MNC057-159-153-290045-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING 
NATIONAL WEATHER SERVICE FARGO ND
654 PM CDT FRI JUN 28 1991

THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM 
WARNING EFFECTIVE UNTIL 745 PM CDT FOR PEOPLE IN THE FOLLOWING 
COUNTIES

   IN THE NORTH CENTRAL PART OF MINNESOTA
      SOUTHERN HUBBARD...

   IN THE CENTRAL PART OF MINNESOTA
      WADENA...NORTHERN TODD...

AT 647 PM CDT...RADAR INDICATED SEVERE THUNDERSTORMS FROM 25 MILES
EAST OF DETROIT LAKES MINNESOTA OR JUST SOUTHWEST OF PARK RAPIDS
TO JUST EAST OF FERGUS FALLS MINNESOTA.  THESE THUNDERSTORMS WERE
MOVING TO THE EAST AT 45 MILES AN HOUR.

EARLIER...WHEN THESE SAME THUNDERSTORMS MOVED THROUGH MUCH OF
OTTER TAIL COUNTY OF MINNESOTA...HAIL UP TO 3 INCHES IN DIAMETER
WAS REPORTED.

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.

A TORNADO WATCH IS ALSO IN EFFECT FOR THE WARNED AREA.  REMEMBER...
SEVERE THUNDERSTORMS CAN AND OCCASIONALLY TO PRODUCE TORNADOES
WITH LITTLE OR NO ADVANCE WARNING.  REMAIN CALM BUT BE ALERT TO
RAPIDLY CHANGING WEATHER CONDITIONS.  IF YOU SPOT A FUNNEL OR A
TORNADO YOU SHOULD SEEK SHELTER IN A REINFORCED BUILDING.

MB

The office that day

Everything else NWS Twin Cities, MN issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jun 27, 9:14 PM CDT	Severe Thunderstorm Warning	MPX	Watonwan	31 min
Jun 28, 6:54 PM CDT	Severe Thunderstorm Warning	MPX	Hubbard	51 min

Nearby

Severe Thunderstorm Warnings in Minnesota, 1991 Every severe thunderstorm warning in 1991

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.