Alert archive / Minnesota / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 56, NWS Twin Cities, MN

May 5, 2012Lac qui Parle County, Minnesota

NWS Twin Cities, MN issued this severe thunderstorm warning at May 5, 2012, 9:01 PM CDT for Lac qui Parle County, Minnesota. It was in force for 14 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: May 5, 2012, 9:01 PM CDT (02:01 UTC)
Expired: May 5, 2012, 9:15 PM CDT
In force: 14 min
Issued by: NWS Twin Cities, MN
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

County Lac qui Parle County, MN

The radar

The Aberdeen radar (KABR), 159 km from the middle of the area, began a volume at 02:02 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
May 5, 8:18 PM CDT	Severe Thunderstorm Watch	SPC	4 hr

The nearest sounding before it

Aberdeen, SD (KABR), launched 00:00Z, 2.0 hours before the alert went out and 160 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: 657 m above ground
0-6 km bulk shear: 64 kt
0-1 km storm-relative helicity: 201 m²/s²
0-3 km storm-relative helicity: 278 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.4

Open this sounding in Storm Lab

The text

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

715 
WUUS53 KMPX 060201
SVRMPX
MNC073-060215-
/O.NEW.KMPX.SV.W.0056.120506T0201Z-120506T0215Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
901 PM CDT SAT MAY 5 2012

THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHWESTERN LAC QUI PARLE COUNTY IN WEST CENTRAL MINNESOTA...

* UNTIL 915 PM CDT

* AT 858 PM CDT...RADAR INDICATED A SEVERE THUNDERSTORM...CAPABLE OF
  PRODUCING QUARTER SIZE HAIL AND DAMAGING WINDS OF 60 MPH. THIS
  STORM WAS LOCATED 7 MILES SOUTH OF BIG STONE CITY...AND MOVING
  NORTHEAST AT 35 MPH.

LOCATIONS IN THE WARNING INCLUDE...
  MAINLY RURAL AREAS OF EXTREME NORTHWESTERN LAC QUI PARLE COUNTY.

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.

&&

LAT...LON 4513 9646 4526 9646 4527 9645 4527 9642
      4526 9629 4524 9627 4509 9641 4511 9647
TIME...MOT...LOC 0201Z 214DEG 30KT 4522 9644
WIND...HAIL 60MPH 1.00IN

$$

JLT

1 follow-up statement

597 
WWUS53 KMPX 060212
SVSMPX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
912 PM CDT SAT MAY 5 2012

MNC073-060226-
/O.EXP.KMPX.SV.W.0056.000000T0000Z-120506T0215Z/
LAC QUI PARLE MN-
912 PM CDT SAT MAY 5 2012

...THE SEVERE THUNDERSTORM WARNING FOR NORTHWESTERN LAC QUI PARLE
COUNTY WILL EXPIRE AT 915 PM CDT...

THE STORM WHICH PROMPTED THE WARNING HAS MOVED OUT OF THE WARNED
AREA.

TO REPORT SEVERE WEATHER...CONTACT YOUR NEAREST LAW ENFORCEMENT
AGENCY. THEY WILL RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE
IN THE TWIN CITIES.

LAT...LON 4513 9646 4526 9646 4527 9645 4527 9642
      4526 9629 4524 9627 4509 9641 4511 9647
TIME...MOT...LOC 0211Z 214DEG 30KT 4529 9637

$$

JLT

The office that day

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

Issued	Product	Office	Counties	Lasted
May 5, 7:58 PM CDT	Special Weather Statement	MPX	Anoka, Chisago, Isanti, Sherburne	47 min
May 5, 8:35 PM CDT	River Flood Watch	MPX	Todd	15 hr
May 5, 8:48 PM CDT	Special Weather Statement	MPX	Lac qui Parle	27 min
May 5, 9:24 PM CDT	Severe Thunderstorm Warning	MPX	Stevens	41 min
May 5, 9:27 PM CDT	Severe Thunderstorm Warning	MPX	Lac qui Parle, Yellow Medicine	63 min
May 5, 11:24 PM CDT	Special Weather Statement	MPX	Renville	66 min
May 5, 11:52 PM CDT	Severe Thunderstorm Warning	MPX	Renville	42 min
May 6, 12:39 AM CDT	Special Weather Statement	MPX	Carver, McLeod	66 min
May 6, 1:35 AM CDT	Special Weather Statement	MPX	Carver, Hennepin, Scott	40 min
May 6, 1:44 AM CDT	Severe Thunderstorm Warning	MPX	Carver, Dakota, Hennepin, Ramsey, Scott	46 min
May 6, 2:14 AM CDT	Special Weather Statement	MPX	Dakota	46 min
May 6, 2:24 AM CDT	Severe Thunderstorm Warning	MPX	Dakota, Goodhue, Washington	36 min
May 6, 10:54 AM CDT	River Flood Warning	MPX	Redwood	22 hr
May 6, 10:54 AM CDT	River Flood Warning	MPX	Brown	33 hr

Nearby

Severe Thunderstorm Warnings in Minnesota, 2012 Every severe thunderstorm warning in 2012

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.