Alert archive / Minnesota / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 220, NWS Twin Cities, MN

July 12, 2012Lac qui Parle County, Minnesota

NWS Twin Cities, MN issued this severe thunderstorm warning at Jul 12, 2012, 10:01 PM CDT for Lac qui Parle County, Minnesota. It was in force for 29 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: Jul 12, 2012, 10:01 PM CDT (03:01 UTC)
Expired: Jul 12, 2012, 10:30 PM CDT
In force: 29 min
Issued by: NWS Twin Cities, MN
Area: Storm-based polygon
Hail: 1.0 in
Wind: 50.0 mph

County Lac qui Parle County, MN

The radar

The Aberdeen radar (KABR), 167 km from the middle of the area, began a volume at 03:04 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 nearest sounding before it

Aberdeen, SD (KABR), launched 00:00Z, 3.0 hours before the alert went out and 168 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: 821 J/kg
Mixed-layer CIN: -66 J/kg
Mixed-layer LCL: 2251 m above ground
0-6 km bulk shear: 20 kt
0-1 km storm-relative helicity: 28 m²/s²
0-3 km storm-relative helicity: 140 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.

936 
WUUS53 KMPX 130301
SVRMPX
MNC073-130330-
/O.NEW.KMPX.SV.W.0220.120713T0301Z-120713T0330Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
1001 PM CDT THU JUL 12 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 1030 PM CDT

* AT 958 PM CDT...RADAR INDICATED A SEVERE THUNDERSTORM...CAPABLE OF
  PRODUCING QUARTER SIZE HAIL. THIS STORM WAS LOCATED NEAR ODESSA...
  OR ABOUT 6 MILES SOUTHEAST OF ORTONVILLE...AND MOVING SOUTHEAST AT
  15 MPH.

LOCATIONS IN THE WARNING INCLUDE...
  BELLINGHAM...
  LOUISBURG...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4527 9645 4526 9629 4523 9627 4523 9623
      4520 9618 4520 9615 4518 9611 4505 9626
      4515 9647 4526 9646
TIME...MOT...LOC 0301Z 299DEG 12KT 4522 9637
WIND...HAIL <50MPH 1.00IN

$$

BAP

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 12, 7:50 PM CDT	Special Weather Statement	MPX	Pope, Stevens	40 min
Jul 12, 9:14 PM CDT	Special Weather Statement	MPX	Douglas	46 min
Jul 12, 9:44 PM CDT	Special Weather Statement	MPX	Big Stone	46 min
Jul 12, 10:25 PM CDT	Severe Thunderstorm Warning	MPX	Lac qui Parle, Swift	35 min
Jul 13, 8:59 AM CDT	Special Weather Statement	MPX	Rice	46 min
Jul 13, 9:18 AM CDT	Special Weather Statement	MPX	Goodhue	57 min
Jul 13, 1:04 PM CDT	Special Weather Statement	MPX	Morrison	41 min
Jul 13, 1:05 PM CDT	Special Weather Statement	MPX	Yellow Medicine	40 min
Jul 13, 1:09 PM CDT	Severe Thunderstorm Warning	MPX	Yellow Medicine	38 min
Jul 13, 1:30 PM CDT	Special Weather Statement	MPX	Renville	45 min
Jul 13, 2:00 PM CDT	Special Weather Statement	MPX	Meeker	45 min
Jul 13, 2:22 PM CDT	Special Weather Statement	MPX	Morrison	38 min
Jul 13, 2:25 PM CDT	Special Weather Statement	MPX	Brown	50 min
Jul 13, 3:02 PM CDT	Special Weather Statement	MPX	Meeker	58 min
Jul 13, 3:20 PM CDT	Special Weather Statement	MPX	Kanabec, Mille Lacs	40 min
Jul 13, 3:48 PM CDT	Special Weather Statement	MPX	Watonwan	42 min
Jul 13, 4:02 PM CDT	Special Weather Statement	MPX	Isanti, Kanabec	43 min
Jul 13, 4:08 PM CDT	Special Weather Statement	MPX	Hennepin	37 min
Jul 13, 4:13 PM CDT	Severe Thunderstorm Warning	MPX	Anoka, Hennepin, Wright	62 min
Jul 13, 4:17 PM CDT	Severe Thunderstorm Warning	MPX	McLeod	28 min
Jul 13, 4:39 PM CDT	Severe Thunderstorm Warning	MPX	Hennepin	41 min
Jul 13, 5:08 PM CDT	Severe Thunderstorm Warning	MPX	Hennepin	52 min
Jul 13, 5:18 PM CDT	Special Weather Statement	MPX	Rice	42 min
Jul 13, 5:26 PM CDT	Severe Thunderstorm Warning	MPX	Dakota, Ramsey, Washington	49 min
Jul 13, 5:39 PM CDT	Areal Flood Advisory	MPX	Dakota, Hennepin, Ramsey, Washington	52 min
Jul 13, 5:39 PM CDT	Special Weather Statement	MPX	Renville	51 min
Jul 13, 5:41 PM CDT	Special Weather Statement	MPX	Martin	49 min
Jul 13, 5:49 PM CDT	Special Weather Statement	MPX	Dakota	41 min
Jul 13, 5:52 PM CDT	Special Weather Statement	MPX	Waseca	23 min
Jul 13, 5:54 PM CDT	Severe Thunderstorm Warning	MPX	Dakota, Washington	33 min
Jul 13, 6:08 PM CDT	Severe Thunderstorm Warning	MPX	Dakota, Goodhue	52 min
Jul 13, 6:20 PM CDT	Special Weather Statement	MPX	Rice	25 min
Jul 13, 6:22 PM CDT	Special Weather Statement	MPX	Steele	23 min
Jul 13, 6:33 PM CDT	Special Weather Statement	MPX	Faribault	42 min
Jul 13, 6:45 PM CDT	Special Weather Statement	MPX	Freeborn	45 min

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.