Alert archive / Minnesota / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 54, NWS Twin Cities, MN

May 5, 2012Faribault County, Martin County, Minnesota

NWS Twin Cities, MN issued this severe thunderstorm warning at May 5, 2012, 1:36 PM CDT for Faribault County, Martin County, Minnesota. It was in force for 24 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 5, 2012, 1:36 PM CDT (18:36 UTC)
Expired
May 5, 2012, 2:00 PM CDT
In force
24 min
Issued by
NWS Twin Cities, MN
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

Counties Faribault County, MN, Martin County, MN

The radar

The Minneapolis radar (KMPX), 151 km from the middle of the area, began a volume at 18:36 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
May 5, 11:38 AM CDTSevere Thunderstorm WatchSPC6 hr

The nearest sounding before it

Minneapolis, MN (KMPX), launched 12:00Z, 6.6 hours before the alert went out and 151 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 2012-05-05Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCLEL10008507005003002001001 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 2012-05-05The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 174 square meters per square second.19395878Sfc1 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
480 m above ground
0-6 km bulk shear
57 kt
0-1 km storm-relative helicity
174 m²/s²
0-3 km storm-relative helicity
217 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.4

Open this sounding in Storm Lab

The text

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

739 
WUUS53 KMPX 051836
SVRMPX
MNC043-091-051900-
/O.NEW.KMPX.SV.W.0054.120505T1836Z-120505T1900Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
136 PM CDT SAT MAY 5 2012

THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTHWESTERN FARIBAULT COUNTY IN SOUTH CENTRAL MINNESOTA...
  SOUTHEASTERN MARTIN COUNTY IN SOUTH CENTRAL MINNESOTA...

* UNTIL 200 PM CDT

* AT 132 PM CDT...RADAR INDICATED A SEVERE THUNDERSTORM...CAPABLE OF
  PRODUCING QUARTER SIZE HAIL AND DAMAGING WINDS OF 60 MPH. THIS
  STORM WAS LOCATED 6 MILES EAST OF FAIRMONT...AND MOVING EAST AT 30
  MPH.

LOCATIONS IN THE WARNING INCLUDE...
  FAIRMONT...
  BLUE EARTH...
  ELMORE...

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 4350 9449 4373 9450 4376 9399 4350 9397
      4349 9409
TIME...MOT...LOC 1836Z 268DEG 27KT 4362 9430
WIND...HAIL 60MPH 1.00IN

$$

SPD
1 follow-up statement
459 
WWUS53 KMPX 051852
SVSMPX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
152 PM CDT SAT MAY 5 2012

MNC043-091-051900-
/O.CON.KMPX.SV.W.0054.000000T0000Z-120505T1900Z/
FARIBAULT MN-MARTIN MN-
152 PM CDT SAT MAY 5 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR SOUTHEASTERN
MARTIN AND SOUTHWESTERN FARIBAULT COUNTIES UNTIL 200 PM CDT...

AT 150 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 BLUE EARTH...MOVING
EAST AT 30 MPH.

LOCATIONS IMPACTED INCLUDE...
  BLUE EARTH AND ELMORE.

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 4350 9435 4373 9434 4376 9399 4350 9397
      4349 9409
TIME...MOT...LOC 1852Z 268DEG 27KT 4362 9413
WIND...HAIL 60MPH 1.00IN

$$

SPD

The office that day

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

IssuedProductOfficeCountiesLasted
May 5, 12:39 PM CDTSpecial Weather StatementMPXBrown, Martin, Watonwan51 min
May 5, 12:54 PM CDTSpecial Weather StatementMPXNicollet, Sibley66 min
May 5, 1:02 PM CDTSevere Thunderstorm WarningMPXBlue Earth, Brown, Nicollet, Sibley43 min
May 5, 1:07 PM CDTSpecial Weather StatementMPXBlue Earth38 min
May 5, 1:11 PM CDTFlash Flood WatchMPXBlue Earth, Brown, Carver, Chippewa, Faribault, Freeborn and 21 more15 hr
May 5, 1:26 PM CDTSpecial Weather StatementMPXBlue Earth, Le Sueur, Rice, Scott, Waseca64 min
May 5, 1:50 PM CDTSevere Thunderstorm WarningMPXBlue Earth, Faribault, Freeborn, Waseca40 min
May 5, 2:08 PM CDTSpecial Weather StatementMPXDakota, Rice, Steele, Waseca52 min
May 5, 2:23 PM CDTSpecial Weather StatementMPXFreeborn, Steele52 min
May 5, 2:37 PM CDTSpecial Weather StatementMPXGoodhue53 min
May 5, 6:43 PM CDTSpecial Weather StatementMPXAnoka, Sherburne62 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.