Alert archive / Minnesota / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 80, NWS Twin Cities, MN

May 23, 2012Douglas County, Pope County, Todd County, Minnesota

NWS Twin Cities, MN issued this severe thunderstorm warning at May 23, 2012, 12:39 PM CDT for Douglas County, Pope County, Todd County, Minnesota. It was in force for 51 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 23, 2012, 12:39 PM CDT (17:39 UTC)
Expired
May 23, 2012, 1:30 PM CDT
In force
51 min
Issued by
NWS Twin Cities, MN
Area
Storm-based polygon
Hail
1.0 in
Wind
50.0 mph

Counties Douglas County, MN, Pope County, MN, Todd County, MN

The radar

The Minneapolis radar (KMPX), 184 km from the middle of the area, began a volume at 17:41 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

Minneapolis, MN (KMPX), launched 12:00Z, 5.7 hours before the alert went out and 182 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-pSkew-T log-p diagram, Minneapolis, MN at 12:00Z on 2012-05-23Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Minneapolis, MN at 12:00Z on 2012-05-23The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 354 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
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
1960 m above ground
0-6 km bulk shear
29 kt
0-1 km storm-relative helicity
354 m²/s²
0-3 km storm-relative helicity
362 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.

920 
WUUS53 KMPX 231739
SVRMPX
MNC041-121-153-231830-
/O.NEW.KMPX.SV.W.0080.120523T1739Z-120523T1830Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
1239 PM CDT WED MAY 23 2012

THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  DOUGLAS COUNTY IN WEST CENTRAL MINNESOTA...
  NORTHERN POPE COUNTY IN WEST CENTRAL MINNESOTA...
  WEST CENTRAL TODD COUNTY IN CENTRAL MINNESOTA...

* UNTIL 130 PM CDT

* AT 1236 PM CDT...RADAR INDICATED A SEVERE THUNDERSTORM...CAPABLE OF
  PRODUCING QUARTER SIZE HAIL. THIS STORM WAS LOCATED NEAR LOWRY...OR
  ABOUT 8 MILES NORTHWEST OF GLENWOOD...AND MOVING NORTHEAST AT 50
  MPH.

LOCATIONS IN THE WARNING INCLUDE...
  GLENWOOD...
  ALEXANDRIA...
  LOWRY...
  LONG BEACH...
  KENSINGTON...
  FORADA...
  GARFIELD...
  OSAKIS...
  CARLOS...
  MILTONA...
  ROSE CITY...
  CLOTHO...
  BROWERVILLE...

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 4610 9545 4610 9482 4562 9533 4572 9574
TIME...MOT...LOC 1739Z 220DEG 45KT 4575 9549
WIND...HAIL <50MPH 1.00IN

$$
2 follow-up statements
606 
WWUS53 KMPX 231804
SVSMPX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
104 PM CDT WED MAY 23 2012

MNC121-231819-
/O.CAN.KMPX.SV.W.0080.000000T0000Z-120523T1830Z/
POPE MN-
104 PM CDT WED MAY 23 2012

...THE SEVERE THUNDERSTORM WARNING FOR NORTHERN POPE COUNTY IS
CANCELLED...

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

LAT...LON 4610 9482 4576 9523 4576 9525 4590 9554
      4610 9539
TIME...MOT...LOC 1804Z 220DEG 45KT 4599 9520

$$

MNC041-153-231830-
/O.CON.KMPX.SV.W.0080.000000T0000Z-120523T1830Z/
DOUGLAS MN-TODD MN-
104 PM CDT WED MAY 23 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR WEST CENTRAL
TODD AND EASTERN DOUGLAS COUNTIES UNTIL 130 PM CDT...

AT 100 PM CDT...NATIONAL WEATHER SERVICE RADAR INDICATED A SEVERE
THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL.  THIS STORM WAS
LOCATED NEAR CARLOS...OR 8 MILES NORTHEAST OF ALEXANDRIA...MOVING
NORTHEAST AT 50 MPH.

LOCATIONS IMPACTED INCLUDE...
  ROSE CITY...CLOTHO AND BROWERVILLE.

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 4610 9482 4576 9523 4576 9525 4590 9554
      4610 9539
TIME...MOT...LOC 1804Z 220DEG 45KT 4599 9520
WIND...HAIL <50MPH 1.00IN

$$
515 
WWUS53 KMPX 231825
SVSMPX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
125 PM CDT WED MAY 23 2012

MNC041-153-231840-
/O.EXP.KMPX.SV.W.0080.000000T0000Z-120523T1830Z/
DOUGLAS MN-TODD MN-
125 PM CDT WED MAY 23 2012

...THE SEVERE THUNDERSTORM WARNING FOR WEST CENTRAL TODD AND EASTERN
DOUGLAS COUNTIES WILL EXPIRE AT 130 PM CDT...

THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED BELOW SEVERE
LIMITS...AND NO LONGER POSES AN IMMEDIATE THREAT TO LIFE OR PROPERTY.

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 4610 9482 4576 9523 4576 9525 4590 9554
      4610 9539
TIME...MOT...LOC 1825Z 220DEG 45KT 4619 9495

$$

The office that day

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

IssuedProductOfficeCountiesLasted
May 23, 3:23 AM CDTFlash Flood WatchMPXAnoka, Benton, Blue Earth, Brown, Carver, Chisago and 22 more34 hr
May 23, 10:56 AM CDTWind AdvisoryMPXBlue Earth, Faribault, Freeborn, Martin, Steele, Waseca8 hr
May 23, 1:03 PM CDTSpecial Weather StatementMPXKanabec27 min
May 23, 2:06 PM CDTSpecial Weather StatementMPXChippewa, Douglas, Kandiyohi, Lac qui Parle, Morrison, Pope and 4 more84 min
May 23, 5:08 PM CDTSevere Thunderstorm WarningMPXMcLeod, Nicollet, Sibley37 min
May 23, 5:17 PM CDTSevere Thunderstorm WarningMPXBrown, Nicollet, Watonwan28 min
May 23, 5:45 PM CDTSevere Thunderstorm WarningMPXBrown, Nicollet, Sibley34 min
May 23, 5:59 PM CDTSpecial Weather StatementMPXRedwood46 min
May 23, 6:51 PM CDTSpecial Weather StatementMPXRenville39 min

Nearby

Severe Thunderstorm Warnings in Minnesota, 2012Every 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.