Alert archive / Minnesota / Severe Thunderstorm Warnings in 2001

Severe Thunderstorm Warning 139, NWS Twin Cities, MN

June 18, 2001Benton County, Minnesota

NWS Twin Cities, MN issued this severe thunderstorm warning at Jun 18, 2001, 5:03 AM CDT for Benton County, Minnesota. It was in force for 42 min. 1 report 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 18, 2001, 5:03 AM CDT (10:03 UTC)
Expired: Jun 18, 2001, 5:45 AM CDT
In force: 42 min
Issued by: NWS Twin Cities, MN
Area: Whole counties; the outline is the Mesonet’s reconstruction

County Benton County, MN

What was reported inside it

Time	Report	Where	Remark
Jun 18, 5:10 AM CDT	Hail 1	Foley, 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 nearest sounding before it

Minneapolis, MN (KMPX), launched 00:00Z, 10.1 hours before the alert went out and 101 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: 38 J/kg
Mixed-layer CIN: -195 J/kg
Mixed-layer LCL: 1536 m above ground
0-6 km bulk shear: 65 kt
0-1 km storm-relative helicity: 116 m²/s²
0-3 km storm-relative helicity: 289 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

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

501 
WUUS53 KMPX 181003
SVRMSP
MNC009-181045-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
503 AM CDT MON JUN 18 2001

THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  BENTON COUNTY IN CENTRAL MINNESOTA

* UNTIL 545 AM CDT

* AT 501 AM CDT...RADAR INDICATED A SEVERE THUNDERSTORM WITH LARGE
  JUST NORTHWEST OF FOLEY.  THE STORM WAS MOVING EAST-SOUTHEAST AT
  25 MPH.  ONE HALF INCH HAIL WAS REPORTED 2 MILES NORTHWEST OF
  GILMAN AT 458 AM... AND RADAR SHOWS THE STORM IS INTENSIFYING.

* SOME LOCATIONS AFFECTED BY THIS STORM INCLUDE...
  FOLEY.
  RONNEBY.
  DULEM.
  GLENDORADO.

THIS IS A DANGEROUS STORM WITH LARGE HAIL...STAY INDOORS AWAY FROM
WINDOWS.

LAT...LON 4581 9414 4557 9407 4557 9378 4581 9380
$$
TDK

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 17, 7:11 PM CDT	Severe Thunderstorm Warning	MPX	Goodhue	49 min
Jun 17, 7:46 PM CDT	Severe Thunderstorm Warning	MPX	Dakota, Washington	44 min
Jun 18, 3:08 AM CDT	Severe Thunderstorm Warning	MPX	Todd	52 min
Jun 18, 4:36 AM CDT	Severe Thunderstorm Warning	MPX	Morrison	39 min
Jun 18, 4:55 AM CDT	Severe Thunderstorm Warning	MPX	Mille Lacs	50 min
Jun 18, 5:11 AM CDT	Severe Thunderstorm Warning	MPX	Kanabec	49 min
Jun 18, 5:30 AM CDT	Severe Thunderstorm Warning	MPX	Chisago, Isanti	60 min
Jun 18, 6:15 AM CDT	Severe Thunderstorm Warning	MPX	Washington	45 min
Jun 18, 6:20 AM CDT	Severe Thunderstorm Warning	MPX	Carver, McLeod	40 min
Jun 18, 6:20 AM CDT	Severe Thunderstorm Warning	MPX	Renville	40 min
Jun 18, 6:41 AM CDT	Severe Thunderstorm Warning	MPX	Brown, Nicollet	49 min
Jun 18, 6:41 AM CDT	Severe Thunderstorm Warning	MPX	Sibley	49 min
Jun 18, 7:05 AM CDT	Severe Thunderstorm Warning	MPX	McLeod	25 min
Jun 18, 7:23 AM CDT	Severe Thunderstorm Warning	MPX	Carver, Scott	52 min
Jun 18, 6:11 PM CDT	Severe Thunderstorm Warning	MPX	Benton, Mille Lacs	49 min

Nearby

Severe Thunderstorm Warnings in Minnesota, 2001 Every 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.