Alert archive / Minnesota / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 30, NWS Twin Cities, MN

May 2, 2012Goodhue County, Minnesota

NWS Twin Cities, MN issued this severe thunderstorm warning at May 2, 2012, 7:29 PM CDT for Goodhue County, Minnesota. It was in force for 61 min. 5 reports came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued: May 2, 2012, 7:29 PM CDT (00:29 UTC)
Expired: May 2, 2012, 8:30 PM CDT
In force: 61 min
Issued by: NWS Twin Cities, MN
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

County Goodhue County, MN

The radar

The Minneapolis radar (KMPX), 94 km from the middle of the area, began a volume at 00:33 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.

What was reported inside it

Time	Report	Where
May 2, 7:35 PM CDT	HAIL 0.75	Zumbrota, MN
May 2, 7:40 PM CDT	HAIL 1	3 W Zumbrota, MN
May 2, 8:27 PM CDT	HAIL 1	6 S Wanamingo, MN
May 2, 8:30 PM CDT	HAIL 1.75	4 Sw Wanamingo, MN
May 2, 8:38 PM CDT	HAIL 1.75	2 Nw Oak Center, MN

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

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 2, 5:25 PM CDT	Severe Thunderstorm Watch	SPC	4 hr

The nearest sounding before it

Minneapolis, MN (KMPX), launched 00:00Z, 0.5 hours before the alert went out and 96 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: 84 J/kg
Mixed-layer CIN: -59 J/kg
Mixed-layer LCL: 1937 m above ground
0-6 km bulk shear: 59 kt
0-1 km storm-relative helicity: 21 m²/s²
0-3 km storm-relative helicity: 134 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.2

Open this sounding in Storm Lab

The text

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

512 
WUUS53 KMPX 030029
SVRMPX
MNC049-030130-
/O.NEW.KMPX.SV.W.0030.120503T0029Z-120503T0130Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
729 PM CDT WED MAY 2 2012

THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTHERN GOODHUE COUNTY IN SOUTHEAST MINNESOTA...

* UNTIL 830 PM CDT

* AT 728 PM CDT...RADAR INDICATED A SEVERE THUNDERSTORM...CAPABLE OF
  PRODUCING QUARTER SIZE HAIL AND DAMAGING WINDS IN EXCESS OF 60 MPH.
  THIS STORM WAS LOCATED NEAR WANAMINGO...OR ABOUT 14 MILES NORTH OF
  MANTORVILLE...AND MOVING NORTHEAST AT 30 MPH.

LOCATIONS IN THE WARNING INCLUDE...
  WANAMINGO...
  HADER...
  ZUMBROTA...
  GOODHUE...
  BELLECHESTER...

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 4432 9291 4452 9250 4441 9241 4437 9242
      4436 9245 4435 9254 4429 9255 4422 9281
TIME...MOT...LOC 0030Z 246DEG 28KT 4428 9278
WIND...HAIL 60MPH 1.00IN

$$

MTF

3 follow-up statements

957 
WWUS53 KMPX 030046
SVSMPX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
746 PM CDT WED MAY 2 2012

MNC049-030130-
/O.CON.KMPX.SV.W.0030.000000T0000Z-120503T0130Z/
GOODHUE MN-
746 PM CDT WED MAY 2 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR SOUTHERN
GOODHUE COUNTY UNTIL 830 PM CDT...

AT 742 PM CDT...TRAINED WEATHER SPOTTERS REPORTED A SEVERE 
THUNDERSTORM PRODUCING NICKEL SIZE HAIL IN ZUMBROTA. THIS STORM IS 
CAPALBE OF PRODUCING QUARTER SIZE HAIL AND DAMAGING WINDS IN EXCESS 
OF 60 MPH.  THIS STORM WAS LOCATED NEAR ZUMBROTA...OR 17 MILES NORTH 
OF MANTORVILLE...MOVING NORTHEAST AT 30 MPH.

LOCATIONS IMPACTED INCLUDE...
  GOODHUE AND BELLECHESTER.

LAT...LON 4432 9291 4452 9250 4441 9241 4437 9242
      4436 9245 4435 9254 4429 9255 4422 9281
TIME...MOT...LOC 0046Z 246DEG 28KT 4432 9261
WIND...HAIL 60MPH 1.00IN

$$

JRB

302 
WWUS53 KMPX 030051
SVSMPX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
751 PM CDT WED MAY 2 2012

MNC049-030130-
/O.CON.KMPX.SV.W.0030.000000T0000Z-120503T0130Z/
GOODHUE MN-
751 PM CDT WED MAY 2 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR SOUTHERN
GOODHUE COUNTY UNTIL 830 PM CDT...

AT 746 PM CDT...TRAINED WEATHER SPOTTERS REPORTED A SEVERE
THUNDERSTORM PRODUCING QUARTER SIZE HAIL...AND DAMAGING WINDS IN 
EXCESS OF 60 MPH NEAR ZUMBROTA.  THIS STORM WAS LOCATED NEAR 
ZUMBROTA...OR 18 MILES NORTHEAST OF MANTORVILLE...MOVING NORTHEAST 
AT 30 MPH.

LOCATIONS IMPACTED INCLUDE...
  BELLECHESTER.

LAT...LON 4432 9291 4452 9250 4441 9241 4437 9242
      4436 9245 4435 9254 4429 9255 4422 9281
TIME...MOT...LOC 0051Z 246DEG 28KT 4432 9255
WIND...HAIL 60MPH 1.00IN

$$

JRB

910 
WWUS53 KMPX 030122
SVSMPX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
822 PM CDT WED MAY 2 2012

MNC049-030130-
/O.CON.KMPX.SV.W.0030.000000T0000Z-120503T0130Z/
GOODHUE MN-
822 PM CDT WED MAY 2 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR SOUTHERN
GOODHUE COUNTY UNTIL 830 PM CDT...

AT 819 PM CDT...NATIONAL WEATHER SERVICE RADAR INDICATED A SEVERE
THUNDERSTORM CAPABLE OF PRODUCING GOLF BALL SIZE HAIL...AND DAMAGING
WINDS IN EXCESS OF 60 MPH.  THIS STORM WAS LOCATED NEAR LAKE CITY...
MOVING NORTHEAST AT 30 MPH.

LOCATIONS IMPACTED INCLUDE...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

IF YOU ARE IN THE PATH OF THIS STORM...PREPARE IMMEDIATELY FOR 
DESTRUCTIVE HAIL...WHICH CAN SIGNIFICANTLY DAMAGE WINDOWS...SIDING 
AND VEHICLES. DAMAGING WINDS ARE ALSO EXPECTED...WHICH CAN UPROOT 
TREES AND DOWN POWER LINES. SEEK SHELTER NOW INSIDE A STURDY 
STRUCTURE AND STAY AWAY FROM WINDOWS.

&&

LAT...LON 4432 9291 4441 9272 4446 9245 4441 9241
      4437 9242 4436 9245 4435 9254 4429 9255
      4422 9281
TIME...MOT...LOC 0122Z 246DEG 28KT 4441 9224
WIND...HAIL 60MPH 1.75IN

$$

JRB

The office that day

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

Issued	Product	Office	Counties	Lasted
May 2, 7:12 PM CDT	Severe Thunderstorm Warning	MPX	Brown	63 min
May 2, 7:30 PM CDT	Severe Thunderstorm Warning	MPX	Goodhue, Rice, Steele	60 min
May 2, 7:32 PM CDT	Tornado Warning	MPX	Rice, Steele, Waseca	28 min
May 2, 7:51 PM CDT	Areal Flood Advisory	MPX	Goodhue, Rice	3 hr
May 2, 7:58 PM CDT	Special Weather Statement	MPX	Nicollet	62 min
May 2, 8:22 PM CDT	Flash Flood Warning	MPX	Goodhue	3 hr
May 2, 8:27 PM CDT	Severe Thunderstorm Warning	MPX	Goodhue	33 min
May 2, 8:46 PM CDT	Severe Thunderstorm Warning	MPX	Goodhue	29 min
May 2, 9:08 PM CDT	Special Weather Statement	MPX	Lac qui Parle	52 min
May 2, 9:25 PM CDT	Severe Thunderstorm Warning	MPX	Chippewa, Lac qui Parle, Swift	50 min
May 2, 10:01 PM CDT	Tornado Warning	MPX	Chippewa, Lac qui Parle	44 min
May 2, 10:12 PM CDT	Severe Thunderstorm Warning	MPX	Pope, Stevens, Swift	48 min
May 2, 10:25 PM CDT	Tornado Warning	MPX	Chippewa, Lac qui Parle	35 min
May 2, 10:55 PM CDT	Severe Thunderstorm Warning	MPX	Pope, Swift	50 min
May 2, 11:00 PM CDT	Tornado Warning	MPX	Chippewa	45 min
May 2, 11:46 PM CDT	Severe Thunderstorm Warning	MPX	Chippewa, Kandiyohi	59 min
May 3, 12:47 AM CDT	Special Weather Statement	MPX	Meeker, Stearns	58 min
May 3, 1:05 AM CDT	Severe Thunderstorm Warning	MPX	Meeker	55 min
May 3, 1:59 AM CDT	Special Weather Statement	MPX	Anoka, Carver, Hennepin, Sherburne, Wright	76 min
May 3, 6:24 AM CDT	Severe Thunderstorm Warning	MPX	Douglas, Todd	36 min
May 3, 6:49 AM CDT	Severe Thunderstorm Warning	MPX	Douglas, Morrison, Todd	41 min
May 3, 7:34 AM CDT	Severe Thunderstorm Warning	MPX	Benton, Morrison	41 min
May 3, 7:57 AM CDT	Special Weather Statement	MPX	Scott	48 min
May 3, 8:31 AM CDT	Severe Thunderstorm Warning	MPX	Le Sueur, Rice, Scott	59 min
May 3, 9:00 AM CDT	Special Weather Statement	MPX	Wright	45 min
May 3, 9:37 AM CDT	Special Weather Statement	MPX	Anoka, Carver, Hennepin, Ramsey	38 min
May 3, 10:12 AM CDT	Special Weather Statement	MPX	Le Sueur	48 min
May 3, 10:22 AM CDT	Severe Thunderstorm Warning	MPX	Dakota, Washington	56 min
May 3, 10:36 AM CDT	Severe Thunderstorm Warning	MPX	Washington	30 min
May 3, 10:55 AM CDT	Special Weather Statement	MPX	Goodhue, Rice	50 min
May 3, 3:05 PM CDT	Special Weather Statement	MPX	Steele, Waseca	40 min
May 3, 3:37 PM CDT	Special Weather Statement	MPX	Steele	38 min
May 3, 4:25 PM CDT	Special Weather Statement	MPX	Faribault	50 min
May 3, 6:19 PM CDT	Special Weather Statement	MPX	Waseca	26 min
May 3, 6:30 PM CDT	Severe Thunderstorm Warning	MPX	Waseca	20 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.