Alert archive / Minnesota / Severe Thunderstorm Warnings in 2011

Severe Thunderstorm Warning 84, NWS Twin Cities, MN

June 17, 20115 counties in Minnesota

NWS Twin Cities, MN issued this severe thunderstorm warning at Jun 17, 2011, 10:22 PM CDT for 5 counties in Minnesota. It was in force for 53 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: Jun 17, 2011, 10:22 PM CDT (03:22 UTC)
Expired: Jun 17, 2011, 11:15 PM CDT
In force: 53 min
Issued by: NWS Twin Cities, MN
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

Counties Chippewa County, MN, Kandiyohi County, MN, Renville County, MN, Swift County, MN, Yellow Medicine County, MN

The radar

The Minneapolis radar (KMPX), 142 km from the middle of the area, began a volume at 03:23 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.

The watch it was issued in

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

Issued	Product	Office	Lasted
Jun 17, 7:22 PM CDT	Tornado Watch	SPC	7 hr

The nearest sounding before it

Minneapolis, MN (KMPX), launched 00:00Z, 3.4 hours before the alert went out and 139 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: 1159 J/kg
Mixed-layer CIN: -30 J/kg
Mixed-layer LCL: 1224 m above ground
0-6 km bulk shear: 22 kt
0-1 km storm-relative helicity: 92 m²/s²
0-3 km storm-relative helicity: 187 m²/s²
Significant tornado parameter: 0.3
Supercell composite: 4.4

Open this sounding in Storm Lab

The text

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

353 
WUUS53 KMPX 180322
SVRMPX
MNC023-067-129-151-173-180415-
/O.NEW.KMPX.SV.W.0084.110618T0322Z-110618T0415Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
1022 PM CDT FRI JUN 17 2011

THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  CHIPPEWA COUNTY IN WEST CENTRAL MINNESOTA...
  WESTERN KANDIYOHI COUNTY IN CENTRAL MINNESOTA...
  NORTHWESTERN RENVILLE COUNTY IN CENTRAL MINNESOTA...
  EASTERN SWIFT COUNTY IN WEST CENTRAL MINNESOTA...
  NORTHEASTERN YELLOW MEDICINE COUNTY IN WEST CENTRAL MINNESOTA...

* UNTIL 1115 PM CDT

* AT 1018 PM CDT...RADAR INDICATED A LINE OF SEVERE THUNDERSTORMS...
  CAPABLE OF PRODUCING QUARTER SIZE HAIL AND DAMAGING WINDS IN EXCESS
  OF 60 MPH. THESE STORMS WERE LOCATED ALONG A LINE EXTENDING FROM
  BENSON TO HAZEL RUN...AND MOVING EAST AT 25 MPH.

LOCATIONS IN THE WARNING INCLUDE...
  BENSON...
  GRANITE FALLS...
  HAZEL RUN...
  HANLEY FALLS...
  DE GRAFF...
  WOOD LAKE...
  GLUEK...
  MAYNARD...
  MINNESOTA FALLS...
  CLARA CITY...
  KERKHOVEN...
  SACRED HEART...
  SUNBURG...
  RAYMOND...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

IF YOU ARE IN THE PATH OF THIS STORM...PREPARE IMMEDIATELY FOR
DAMAGING WINDS IN EXCESS OF 60 MPH AND LARGE HAIL. SEEK SHELTER NOW
INSIDE A STURDY STRUCTURE AND STAY AWAY FROM WINDOWS.

THIS STORM HAS A HISTORY OF PRODUCING DESTRUCTIVE WINDS AND LARGE
DAMAGING HAIL. SEEK SHELTER NOW INSIDE A STURDY STRUCTURE AND STAY
AWAY FROM WINDOWS!

A TORNADO WATCH REMAINS IN EFFECT UNTIL 200 AM CDT SATURDAY MORNING
FOR SOUTHWESTERN MINNESOTA.

&&

LAT...LON 4538 9563 4538 9503 4463 9515 4463 9520
      4466 9524 4466 9529 4470 9536 4464 9537
      4465 9573
TIME...MOT...LOC 0322Z 270DEG 20KT 4526 9563 4473 9569
WIND...HAIL 60MPH 1.00IN

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 17, 7:00 PM CDT	Tornado Warning	MPX	Kandiyohi	22 min
Jun 17, 7:04 PM CDT	Severe Thunderstorm Warning	MPX	Kandiyohi	26 min
Jun 17, 7:50 PM CDT	Severe Thunderstorm Warning	MPX	Faribault, Martin	55 min
Jun 17, 7:57 PM CDT	Areal Flood Advisory	MPX	Kandiyohi	3 hr
Jun 17, 7:57 PM CDT	Severe Thunderstorm Warning	MPX	Kandiyohi	33 min
Jun 17, 8:18 PM CDT	Severe Thunderstorm Warning	MPX	Kandiyohi	27 min
Jun 17, 8:25 PM CDT	Areal Flood Warning	MPX	Kandiyohi	6 hr
Jun 17, 8:47 PM CDT	Special Weather Statement	MPX	Big Stone	58 min
Jun 17, 9:33 PM CDT	Severe Thunderstorm Warning	MPX	Chippewa, Lac qui Parle, Swift	57 min
Jun 17, 9:55 PM CDT	Severe Thunderstorm Warning	MPX	Chippewa, Lac qui Parle, Yellow Medicine	35 min
Jun 17, 10:09 PM CDT	Severe Thunderstorm Warning	MPX	Le Sueur, Scott, Sibley	66 min
Jun 17, 10:42 PM CDT	Severe Thunderstorm Warning	MPX	Carver, Scott, Sibley	48 min
Jun 17, 11:25 PM CDT	Special Weather Statement	MPX	Kandiyohi, Meeker, Stearns	65 min
Jun 17, 11:34 PM CDT	Special Weather Statement	MPX	Dakota	56 min
Jun 18, 12:09 AM CDT	Special Weather Statement	MPX	Benton, Meeker, Stearns	51 min
Jun 18, 12:21 AM CDT	Severe Thunderstorm Warning	MPX	Benton, Morrison, Sherburne, Stearns	54 min
Jun 18, 6:38 AM CDT	Special Weather Statement	MPX	Dakota	37 min
Jun 18, 11:58 AM CDT	Flood Watch	MPX	Anoka, Blue Earth, Brown, Carver, Chisago, Dakota and 14 more	20 hr
Jun 18, 3:46 PM CDT	Severe Thunderstorm Warning	MPX	Goodhue	44 min
Jun 18, 4:28 PM CDT	Severe Thunderstorm Warning	MPX	Goodhue	47 min
Jun 18, 5:22 PM CDT	Severe Thunderstorm Warning	MPX	Goodhue	53 min

Nearby

Severe Thunderstorm Warnings in Minnesota, 2011 Every severe thunderstorm warning in 2011

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; radar from the NEXRAD Level II archive.