Alert archive / Minnesota / Severe Thunderstorm Warnings in 2000

Severe Thunderstorm Warning 87, NWS Twin Cities, MN

August 7, 2000Blue Earth County, Le Sueur County, Nicollet County, Minnesota

NWS Twin Cities, MN issued this severe thunderstorm warning at Aug 7, 2000, 10:14 PM CDT for Blue Earth County, Le Sueur County, Nicollet County, Minnesota. It was in force for 46 min. 2 reports 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: Aug 7, 2000, 10:14 PM CDT (03:14 UTC)
Expired: Aug 7, 2000, 11:00 PM CDT
In force: 46 min
Issued by: NWS Twin Cities, MN
Area: Whole counties

Counties Blue Earth County, MN, Le Sueur County, MN, Nicollet County, MN

What was reported inside it

Time	Report	Where	Remark
Aug 7, 10:20 PM CDT	Thunderstorm Wind 50 E	Mankato, MN	Trees felled. As reported by Lake Crystal Tribune. Light to moderate damage of approximately 15,000 acres of field corn. Severe damaged sustained to approximately 2000 acres of sweet corn.
Aug 7, 10:53 PM CDT	Thunderstorm Wind 52 E	Le Center, 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.

The watch it was issued in

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

Issued	Product	Office	Lasted
Aug 7, 6:45 PM CDT	Severe Thunderstorm Watch	SPC	6 hr

The nearest sounding before it

Minneapolis, MN (KMPX), launched 00:00Z, 3.2 hours before the alert went out and 74 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: 1134 J/kg
Mixed-layer CIN: -65 J/kg
Mixed-layer LCL: 1449 m above ground
0-6 km bulk shear: 44 kt
0-1 km storm-relative helicity: 63 m²/s²
0-3 km storm-relative helicity: 258 m²/s²
Significant tornado parameter: 0.3
Supercell composite: 6.1

Open this sounding in Storm Lab

The text

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

000 
WUUS53 KMPX 080315
SVRMSP
MNC013-079-103-080400-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
1014 PM CDT MON AUG 7 2000

THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  LE SUEUR COUNTY IN SOUTH CENTRAL MINNESOTA
  NICOLLET COUNTY IN SOUTH CENTRAL MINNESOTA
  BLUE EARTH COUNTY IN SOUTH CENTRAL MINNESOTA

* UNTIL 1100 PM CDT

* AT 1014 PM CDT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM WITH LARGE HAIL AND DAMAGING WINDS ALONG A LINE
  EXTENDING FROM 10 MILES NORTHWEST OF LE CENTER TO 5 MILES SOUTH OF
  VERNON CENTER...OR ALONG A LINE EXTENDING FROM 14 MILES NORTHEAST
  OF ST PETER TO 18 MILES NORTH OF BLUE EARTH...MOVING SOUTH AT 20
  MPH.

* SOME LOCATIONS AFFECTED BY THIS STORM INCLUDE...
  MANKATO
  ST PETER
  LE CENTER
  MONTGOMERY
  EAGLE LAKE
  LE SUEUR

THIS IS A DANGEROUS STORM...STAY INDOORS AWAY FROM WINDOWS.

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 7, 8:34 PM CDT	Severe Thunderstorm Warning	MPX	Brown	41 min
Aug 7, 8:56 PM CDT	Severe Thunderstorm Warning	MPX	Redwood	49 min
Aug 7, 9:11 PM CDT	Severe Thunderstorm Warning	MPX	Brown, Martin, Watonwan	64 min
Aug 7, 9:14 PM CDT	Severe Thunderstorm Warning	MPX	Blue Earth, Nicollet	61 min
Aug 7, 9:34 PM CDT	Tornado Warning	MPX	Martin	41 min
Aug 7, 9:38 PM CDT	Severe Thunderstorm Warning	MPX	Renville, Sibley	52 min
Aug 7, 9:58 PM CDT	Severe Thunderstorm Warning	MPX	McLeod	62 min
Aug 7, 10:21 PM CDT	Severe Thunderstorm Warning	MPX	Carver, Scott	54 min
Aug 7, 10:21 PM CDT	Severe Thunderstorm Warning	MPX	Wright	54 min
Aug 7, 10:41 PM CDT	Severe Thunderstorm Warning	MPX	Hennepin	64 min
Aug 7, 10:58 PM CDT	Severe Thunderstorm Warning	MPX	Le Sueur, Rice	62 min
Aug 8, 5:47 PM CDT	Severe Thunderstorm Warning	MPX	Kanabec	28 min

Nearby

Severe Thunderstorm Warnings in Minnesota, 2000 Every severe thunderstorm warning in 2000

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.