Alert archive / Minnesota / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 35, NWS Twin Cities, MN

May 2, 2012Pope County, Stevens County, Swift County, Minnesota

NWS Twin Cities, MN issued this severe thunderstorm warning at May 2, 2012, 10:12 PM CDT for Pope County, Stevens County, Swift County, Minnesota. It was in force for 48 min. 1 report 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, 10:12 PM CDT (03:12 UTC)
Expired: May 2, 2012, 11:00 PM CDT
In force: 48 min
Issued by: NWS Twin Cities, MN
Area: Storm-based polygon
Hail: 1.0 in
Wind: 50.0 mph

Counties Pope County, MN, Stevens County, MN, Swift County, MN

The radar

The Aberdeen radar (KABR), 187 km from the middle of the area, began a volume at 03:13 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	Remark
May 2, 10:50 PM CDT	HAIL 1	4 E Hancock, MN

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

The nearest sounding before it

Aberdeen, SD (KABR), launched 00:00Z, 3.2 hours before the alert went out and 198 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: 10 J/kg
Mixed-layer CIN: -51 J/kg
Mixed-layer LCL: 2487 m above ground
0-6 km bulk shear: 67 kt
0-1 km storm-relative helicity: 119 m²/s²
0-3 km storm-relative helicity: 170 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.

328 
WUUS53 KMPX 030312
SVRMPX
MNC121-149-151-030400-
/O.NEW.KMPX.SV.W.0035.120503T0312Z-120503T0400Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
1012 PM CDT WED MAY 2 2012

THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTHWESTERN POPE COUNTY IN WEST CENTRAL MINNESOTA...
  SOUTHERN STEVENS COUNTY IN WEST CENTRAL MINNESOTA...
  EXTREME NORTHWESTERN SWIFT COUNTY IN WEST CENTRAL MINNESOTA...

* UNTIL 1100 PM CDT

* AT 1009 PM CDT...RADAR INDICATED A SEVERE THUNDERSTORM...CAPABLE OF
  PRODUCING QUARTER SIZE HAIL. THIS STORM WAS LOCATED NEAR
  ARTICHOKE...OR ABOUT 14 MILES SOUTHWEST OF MORRIS...AND MOVING EAST
  AT 30 MPH.

LOCATIONS IN THE WARNING INCLUDE...
  MORRIS...
  ALBERTA...
  HANCOCK...
  CYRUS...

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 4557 9615 4566 9566 4539 9563 4539 9613
      4540 9618 4541 9621
TIME...MOT...LOC 0312Z 254DEG 26KT 4545 9608
WIND...HAIL <50MPH 1.00IN

$$

2 follow-up statements

855 
WWUS53 KMPX 030328
SVSMPX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
1028 PM CDT WED MAY 2 2012

MNC121-149-151-030400-
/O.CON.KMPX.SV.W.0035.000000T0000Z-120503T0400Z/
POPE MN-STEVENS MN-SWIFT MN-
1028 PM CDT WED MAY 2 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR EXTREME NORTH
CENTRAL SWIFT...SOUTHEASTERN STEVENS AND SOUTHWESTERN POPE COUNTIES
UNTIL 1100 PM CDT...

AT 1022 PM CDT...NATIONAL WEATHER SERVICE RADAR INDICATED A SEVERE
THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL.  THIS STORM WAS
LOCATED 8 MILES SOUTHEAST OF ALBERTA...OR 9 MILES SOUTHWEST OF
MORRIS...MOVING EAST AT 30 MPH.

LOCATIONS IMPACTED INCLUDE...
  MORRIS...HANCOCK AND CYRUS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 60 MILES PER
HOUR...LARGE HAIL...AND DEADLY LIGHTNING. FOR YOUR PROTECTION MOVE TO
AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR HOME OR BUSINESS.

&&

LAT...LON 4539 9604 4542 9606 4546 9606 4559 9600
      4566 9566 4539 9563
TIME...MOT...LOC 0328Z 254DEG 26KT 4548 9592
WIND...HAIL <50MPH 1.00IN

$$

235 
WWUS53 KMPX 030341
SVSMPX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
1041 PM CDT WED MAY 2 2012

MNC121-149-151-030400-
/O.CON.KMPX.SV.W.0035.000000T0000Z-120503T0400Z/
POPE MN-STEVENS MN-SWIFT MN-
1041 PM CDT WED MAY 2 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR EXTREME NORTH
CENTRAL SWIFT...SOUTHEASTERN STEVENS AND SOUTHWESTERN POPE COUNTIES
UNTIL 1100 PM CDT...

AT 1036 PM CDT...NATIONAL WEATHER SERVICE RADAR INDICATED A SEVERE
THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL.  THIS STORM WAS
LOCATED NEAR HANCOCK...OR 7 MILES SOUTHEAST OF MORRIS...MOVING EAST
AT 30 MPH.

LOCATIONS IMPACTED INCLUDE...
  CYRUS...HANCOCK.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 60 MILES PER
HOUR...LARGE HAIL...AND DEADLY LIGHTNING. FOR YOUR PROTECTION MOVE TO
AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR HOME OR BUSINESS.

&&

LAT...LON 4540 9593 4544 9593 4548 9593 4561 9586
      4566 9566 4539 9563
TIME...MOT...LOC 0341Z 254DEG 26KT 4551 9579
WIND...HAIL <50MPH 1.00IN

$$

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, 7:29 PM CDT	Severe Thunderstorm Warning	MPX	Goodhue	61 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, 10:25 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.