Alert archive / Minnesota / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 117, NWS Twin Cities, MN

May 28, 2012Stearns County, Minnesota

NWS Twin Cities, MN issued this severe thunderstorm warning at May 28, 2012, 2:10 PM CDT for Stearns County, Minnesota. It was in force for 50 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 28, 2012, 2:10 PM CDT (19:10 UTC)
Expired: May 28, 2012, 3:00 PM CDT
In force: 50 min
Issued by: NWS Twin Cities, MN
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

County Stearns County, MN

The radar

The Minneapolis radar (KMPX), 105 km from the middle of the area, began a volume at 19:13 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 28, 2:40 PM CDT	HAIL 1.5	St Joseph, 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 28, 2:07 PM CDT	Severe Thunderstorm Watch	SPC	6 hr

The nearest sounding before it

Minneapolis, MN (KMPX), launched 12:00Z, 7.2 hours before the alert went out and 103 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: 60 J/kg
Mixed-layer CIN: -27 J/kg
Mixed-layer LCL: 553 m above ground
0-6 km bulk shear: 69 kt
0-1 km storm-relative helicity: 92 m²/s²
0-3 km storm-relative helicity: 144 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.1

Open this sounding in Storm Lab

The text

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

538 
WUUS53 KMPX 281910
SVRMPX
MNC145-282000-
/O.NEW.KMPX.SV.W.0117.120528T1910Z-120528T2000Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
210 PM CDT MON MAY 28 2012

THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  EASTERN STEARNS COUNTY IN CENTRAL MINNESOTA...

* UNTIL 300 PM CDT

* AT 209 PM CDT...RADAR INDICATED A SEVERE THUNDERSTORM...CAPABLE OF
  PRODUCING QUARTER SIZE HAIL AND DAMAGING WINDS OF 60 MPH. THIS
  STORM WAS LOCATED NEAR FARMING...OR ABOUT 20 MILES WEST OF ST
  CLOUD...AND MOVING NORTHEAST AT 30 MPH.

LOCATIONS IN THE WARNING INCLUDE...
  ST CLOUD...
  ROSCOE...
  RICHMOND...
  FARMING...
  ALBANY...
  COLD SPRING...
  AVON...
  COLLEGEVILLE...
  PLEASANT LAKE...
  ST JOSEPH...
  WAITE PARK...
  ST STEPHEN...
  SARTELL...

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 4574 9426 4572 9422 4571 9423 4567 9419
      4562 9421 4555 9414 4551 9414 4541 9464
      4557 9476 4576 9427
TIME...MOT...LOC 1910Z 244DEG 24KT 4553 9458
WIND...HAIL 60MPH 1.00IN

$$

2 follow-up statements

196 
WWUS53 KMPX 281920
SVSMPX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
220 PM CDT MON MAY 28 2012

MNC145-282000-
/O.CON.KMPX.SV.W.0117.000000T0000Z-120528T2000Z/
STEARNS MN-
220 PM CDT MON MAY 28 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR EASTERN
STEARNS COUNTY UNTIL 300 PM CDT...

AT 220 PM CDT...NATIONAL WEATHER SERVICE RADAR INDICATED A SEVERE
THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND DAMAGING
WINDS OF 60 MPH.  THIS STORM WAS LOCATED NEAR FARMING...OR 16 MILES
WEST OF ST CLOUD...MOVING NORTHEAST AT 30 MPH.

LOCATIONS IMPACTED INCLUDE...
  ST CLOUD...AVON...COLLEGEVILLE...PLEASANT LAKE...ST JOSEPH...WAITE
  PARK...ST STEPHEN AND SARTELL.

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 4576 9427 4572 9422 4571 9423 4567 9419
      4562 9421 4555 9414 4553 9415 4551 9414
      4544 9459 4562 9462
TIME...MOT...LOC 1920Z 244DEG 24KT 4556 9449
WIND...HAIL 60MPH 1.00IN

$$

538 
WWUS53 KMPX 281935
SVSMPX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
235 PM CDT MON MAY 28 2012

MNC145-282000-
/O.CON.KMPX.SV.W.0117.000000T0000Z-120528T2000Z/
STEARNS MN-
235 PM CDT MON MAY 28 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR NORTHEASTERN
STEARNS COUNTY UNTIL 300 PM CDT...

AT 231 PM CDT...NATIONAL WEATHER SERVICE RADAR INDICATED A SEVERE
THUNDERSTORM CAPABLE OF PRODUCING HALF DOLLAR SIZE HAIL...AND
DAMAGING WINDS OF 60 MPH.  THIS STORM WAS LOCATED NEAR
COLLEGEVILLE...OR 10 MILES WEST OF ST CLOUD...MOVING NORTHEAST AT 30
MPH.

LOCATIONS IMPACTED INCLUDE...
  ST CLOUD...WAITE PARK...SARTELL...AND ST STEPHEN.

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 4576 9427 4572 9422 4571 9424 4567 9419
      4562 9422 4555 9414 4553 9415 4551 9453
      4566 9448
TIME...MOT...LOC 1935Z 245DEG 25KT 4560 9434
WIND...HAIL 60MPH 1.25IN

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
May 27, 7:09 PM CDT	Areal Flood Advisory	MPX	Chisago	3 hr
May 27, 7:15 PM CDT	Severe Thunderstorm Warning	MPX	Carver, Scott	60 min
May 27, 7:27 PM CDT	Severe Thunderstorm Warning	MPX	Carver, Hennepin, Scott	48 min
May 27, 7:30 PM CDT	Severe Thunderstorm Warning	MPX	Blue Earth, Brown, Nicollet, Sibley, Watonwan	60 min
May 27, 7:39 PM CDT	Special Weather Statement	MPX	Ramsey, Washington	51 min
May 27, 7:44 PM CDT	Severe Thunderstorm Warning	MPX	Kandiyohi, Meeker, Stearns	61 min
May 27, 7:45 PM CDT	Severe Thunderstorm Warning	MPX	Anoka, Hennepin	45 min
May 27, 7:50 PM CDT	Severe Thunderstorm Warning	MPX	Blue Earth, Le Sueur, Nicollet, Waseca	55 min
May 27, 7:55 PM CDT	Flash Flood Warning	MPX	Chisago	5 hr
May 27, 8:07 PM CDT	Severe Thunderstorm Warning	MPX	Kandiyohi, Meeker, Renville	53 min
May 27, 8:15 PM CDT	Severe Thunderstorm Warning	MPX	Anoka, Ramsey	34 min
May 27, 8:22 PM CDT	Areal Flood Advisory	MPX	Anoka, Carver, Dakota, Hennepin, Ramsey, Scott and 1 more	6 hr
May 27, 8:24 PM CDT	Severe Thunderstorm Warning	MPX	Carver, Hennepin, McLeod, Scott, Wright	51 min
May 27, 8:29 PM CDT	Severe Thunderstorm Warning	MPX	Anoka, Isanti	46 min
May 27, 8:33 PM CDT	Severe Thunderstorm Warning	MPX	Kandiyohi, Meeker	57 min
May 27, 8:58 PM CDT	Severe Thunderstorm Warning	MPX	Anoka, Chisago, Isanti, Kanabec	62 min
May 27, 9:15 PM CDT	Special Weather Statement	MPX	Brown, Martin, Watonwan	45 min
May 27, 9:27 PM CDT	Flash Flood Warning	MPX	Blue Earth, Brown, Hennepin, McLeod, Meeker, Nicollet and 4 more	6 hr
May 27, 9:28 PM CDT	Severe Thunderstorm Warning	MPX	Benton, Morrison, Sherburne, Stearns	62 min
May 27, 9:43 PM CDT	Severe Thunderstorm Warning	MPX	Benton, Isanti, Kanabec, Mille Lacs	62 min
May 27, 9:46 PM CDT	Flash Flood Warning	MPX	Anoka, Carver, Chisago, Dakota, Hennepin, Isanti and 2 more	6 hr
May 27, 9:53 PM CDT	Flash Flood Warning	MPX	Benton, Mille Lacs, Sherburne, Stearns	4 hr
May 27, 10:02 PM CDT	Special Weather Statement	MPX	Blue Earth, Martin, Nicollet, Sibley, Waseca	43 min
May 27, 10:09 PM CDT	Special Weather Statement	MPX	Mille Lacs, Morrison	51 min
May 27, 10:19 PM CDT	Areal Flood Advisory	MPX	Kanabec, Mille Lacs, Morrison	4 hr
May 27, 10:42 PM CDT	Special Weather Statement	MPX	Dakota, Freeborn, Rice, Steele, Waseca	48 min
May 27, 11:00 PM CDT	River Flood Warning	MPX	Brown	66 hr
May 27, 11:05 PM CDT	Special Weather Statement	MPX	Dakota, Freeborn, Goodhue, Steele	40 min
May 27, 11:23 PM CDT	Severe Thunderstorm Warning	MPX	Dakota, Goodhue	29 min
May 28, 12:58 AM CDT	Areal Flood Warning	MPX	Chisago	6 hr
May 28, 9:34 AM CDT	River Flood Warning	MPX	Hennepin, Wright	6 days
May 28, 1:54 PM CDT	Special Weather Statement	MPX	Benton, Stearns	66 min
May 28, 2:26 PM CDT	Special Weather Statement	MPX	Benton, Mille Lacs	64 min
May 28, 2:44 PM CDT	Severe Thunderstorm Warning	MPX	Mille Lacs, Morrison	61 min
May 28, 2:46 PM CDT	Severe Thunderstorm Warning	MPX	Benton	44 min
May 28, 2:48 PM CDT	Special Weather Statement	MPX	Morrison	42 min
May 28, 3:05 PM CDT	Special Weather Statement	MPX	Benton	40 min
May 28, 3:26 PM CDT	Special Weather Statement	MPX	Isanti, Kanabec, Sherburne	79 min
May 28, 3:30 PM CDT	Severe Thunderstorm Warning	MPX	Kanabec	45 min
May 28, 4:18 PM CDT	Special Weather Statement	MPX	Chisago	42 min
May 28, 4:51 PM CDT	Special Weather Statement	MPX	Chisago	24 min
May 28, 5:33 PM CDT	Special Weather Statement	MPX	Chisago	42 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.