Alert archive / Minnesota / Severe Thunderstorm Warnings in 2001

Severe Thunderstorm Warning 57, NWS Twin Cities, MN

June 10, 20014 counties in Minnesota

NWS Twin Cities, MN issued this severe thunderstorm warning at Jun 10, 2001, 1:20 AM CDT for 4 counties in Minnesota. It was in force for 55 min. 4 reports came from inside the area while it was in force.

The area

The outline the Iowa Environmental Mesonet reconstructed for it; the warning itself named whole counties, with what was reported inside it.

The facts

Issued
Jun 10, 2001, 1:20 AM CDT (06:20 UTC)
Expired
Jun 10, 2001, 2:15 AM CDT
In force
55 min
Issued by
NWS Twin Cities, MN
Area
Whole counties; the outline is the Mesonet’s reconstruction

Counties Chippewa County, MN, Redwood County, MN, Renville County, MN, Yellow Medicine County, MN

The radar

The Minneapolis radar (KMPX), 168 km from the middle of the area, began a volume at 06:21 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

What was reported inside it

TimeReportWhereRemark
Jun 10, 1:22 AM CDTThunderstorm Wind 61 EMarshall, MNThunderstorm winds blew down light poles.
Jun 10, 1:23 AM CDTTornado F0Cottonwood, MNA brief tornado caused no reported damage.
Jun 10, 1:40 AM CDTThunderstorm Wind 55 EVesta, MNLarge tree branches down.
Jun 10, 2:10 AM CDTThunderstorm Wind 50 ESacred Heart, MNTrees blown down.

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.

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
Jun 9, 10:30 PM CDTSevere Thunderstorm WatchSPC6 hr

The nearest sounding before it

Minneapolis, MN (KMPX), launched 00:00Z, 6.3 hours before the alert went out and 165 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-pSkew-T log-p diagram, Minneapolis, MN at 00:00Z on 2001-06-10Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 141 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Minneapolis, MN at 00:00Z on 2001-06-10The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 111 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
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
141 J/kg
Mixed-layer CIN
-99 J/kg
Mixed-layer LCL
1787 m above ground
0-6 km bulk shear
32 kt
0-1 km storm-relative helicity
111 m²/s²
0-3 km storm-relative helicity
229 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.1

Open this sounding in Storm Lab

The text

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

000 
WUUS53 KMPX 100621
SVRMSP

MNC023-073-127-129-151-173-100715-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
120 AM CDT SUN JUN 10 2001

THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SWIFT COUNTY IN WEST CENTRAL MINNESOTA
  REDWOOD COUNTY IN SOUTHWEST MINNESOTA
  CHIPPEWA COUNTY IN WEST CENTRAL MINNESOTA
  YELLOW MEDICINE COUNTY IN WEST CENTRAL MINNESOTA
  RENVILLE COUNTY IN CENTRAL MINNESOTA
  LAC QUI PARLE COUNTY IN WEST CENTRAL MINNESOTA

* UNTIL 215 AM CDT

* AT 120 AM CDT...RADAR INDICATED A LINE OF SEVERE THUNDERSTORMS 
WITH LARGE  HAIL AND DAMAGING WINDS FROM 10 MILES WEST OF 
MILROY...OR ABOUT 5 MILES SOUTHEAST OF MARSHALL TO BENSON...MOVING 
EAST AT 55 MPH.

* SOME LOCATIONS AFFECTED BY THIS STORM INCLUDE...
  GRANITE FALLS.
  MONTEVIDEO.
  BENSON.
  APPLETON.

LARGE HAIL AND DAMAGING WIND	S ARE LIKELY WITH THIS STORM. TAKE COVER
IN A STURDY BUILDING AND STAY AWAY FROM WINDOWS.

LAT...LON 4538 9613 4427 9574 4425 9518 4538 9530

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 9, 11:17 PM CDTSevere Thunderstorm WarningMPXMcLeod, Renville, Sibley58 min
Jun 10, 12:09 AM CDTSevere Thunderstorm WarningMPXStearns, Todd51 min
Jun 10, 12:22 AM CDTSevere Thunderstorm WarningMPXChippewa, Lac qui Parle, Swift, Yellow Medicine53 min
Jun 10, 12:23 AM CDTSevere Thunderstorm WarningMPXMcLeod, Meeker52 min
Jun 10, 12:53 AM CDTTornado WarningMPXLac qui Parle, Yellow Medicine37 min
Jun 10, 1:20 AM CDTSevere Thunderstorm WarningMPXLac qui Parle, Swift55 min
Jun 10, 2:05 AM CDTSevere Thunderstorm WarningMPXBlue Earth, Faribault, Martin, Watonwan55 min
Jun 10, 2:05 AM CDTSevere Thunderstorm WarningMPXBrown, Nicollet55 min
Jun 10, 2:05 AM CDTSevere Thunderstorm WarningMPXMcLeod, Sibley55 min

Nearby

Severe Thunderstorm Warnings in Minnesota, 2001Every severe thunderstorm warning in 2001

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; radar from the NEXRAD Level II archive.