Alert archive / Minnesota / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 59, NWS Twin Cities, MN

May 5, 2012Renville County, Minnesota

NWS Twin Cities, MN issued this severe thunderstorm warning at May 5, 2012, 11:52 PM CDT for Renville County, Minnesota. It was in force for 42 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, 11:52 PM CDT (04:52 UTC)
Expired
May 6, 2012, 12:34 AM CDT
In force
42 min
Issued by
NWS Twin Cities, MN
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

County Renville County, MN

The radar

The Minneapolis radar (KMPX), 104 km from the middle of the area, began a volume at 04:52 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 00:00Z, 4.9 hours before the alert went out and 101 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 00:00Z on 2012-05-06Temperature 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 00:00Z on 2012-05-06The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -28 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
850 m above ground
0-6 km bulk shear
45 kt
0-1 km storm-relative helicity
-28 m²/s²
0-3 km storm-relative helicity
180 m²/s²
Significant tornado parameter
0.0
Supercell composite
1.2

Open this sounding in Storm Lab

The text

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

881 
WUUS53 KMPX 060452
SVRMPX
MNC129-060545-
/O.NEW.KMPX.SV.W.0059.120506T0452Z-120506T0545Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
1152 PM CDT SAT MAY 5 2012

THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  RENVILLE COUNTY IN CENTRAL MINNESOTA...

* UNTIL 1245 AM CDT

* AT 1146 PM CDT...RADAR INDICATED A LINE OF SEVERE THUNDERSTORMS...
  CAPABLE OF PRODUCING QUARTER SIZE HAIL AND DAMAGING WINDS OF 60
  MPH. THESE STORMS WERE LOCATED ALONG A LINE EXTENDING FROM DANUBE
  TO BECHYN TO NORTH REDWOOD...AND MOVING NORTHEAST AT 45 MPH.

LOCATIONS IN THE WARNING INCLUDE...
  OLIVIA...
  DANUBE...
  BECHYN...
  MORTON...
  RENVILLE...
  BIRD ISLAND...
  HECTOR...
  BUFFALO LAKE...
  LAKESIDE...

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 4490 9507 4489 9500 4489 9450 4474 9450
      4471 9456 4471 9462 4468 9463 4453 9497
      4460 9513 4463 9513 4480 9531
TIME...MOT...LOC 0452Z 239DEG 39KT 4480 9507 4470 9497
          4463 9497
WIND...HAIL 60MPH 1.00IN

$$
4 follow-up statements
545 
WWUS53 KMPX 060459
SVSMPX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
1159 PM CDT SAT MAY 5 2012

MNC129-060545-
/O.CON.KMPX.SV.W.0059.000000T0000Z-120506T0545Z/
RENVILLE MN-
1159 PM CDT SAT MAY 5 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR RENVILLE
COUNTY UNTIL 1245 AM CDT...

AT 1156 PM CDT...NATIONAL WEATHER SERVICE RADAR INDICATED A LINE OF
SEVERE THUNDERSTORMS CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND
DAMAGING WINDS OF 65 MPH.  THESE STORMS WERE LOCATED ALONG A LINE
EXTENDING FROM OLIVIA TO BIRD ISLAND TO 8 MILES EAST OF BECHYN...
MOVING NORTHEAST AT 45 MPH.

IN ADDITION...AT 1148 PM...58 MPH WINDS WERE REPORTED IN REDWOOD 
FALLS WITH THESE STORMS.

LOCATIONS IMPACTED INCLUDE...
  BIRD ISLAND...HECTOR...BUFFALO LAKE AND LAKESIDE.

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 4490 9507 4489 9500 4489 9450 4474 9450
      4471 9456 4471 9462 4468 9463 4453 9497
      4460 9513 4463 9513 4480 9531
TIME...MOT...LOC 0458Z 239DEG 39KT 4483 9499 4473 9489
          4466 9489
WIND...HAIL 60MPH 1.00IN

$$

JLT
214 
WWUS53 KMPX 060507
SVSMPX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
1207 AM CDT SUN MAY 6 2012

MNC129-060545-
/O.CON.KMPX.SV.W.0059.000000T0000Z-120506T0545Z/
RENVILLE MN-
1207 AM CDT SUN MAY 6 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR EASTERN
RENVILLE COUNTY UNTIL 1245 AM CDT...

AT 1205 AM CDT...NATIONAL WEATHER SERVICE RADAR INDICATED A LINE OF
SEVERE THUNDERSTORMS CAPABLE OF PRODUCING DAMAGING WINDS OF 60 MPH. 
THESE STORMS WERE LOCATED ALONG A LINE EXTENDING FROM BIRD ISLAND TO
HECTOR TO 6 MILES SOUTHWEST OF HECTOR...MOVING NORTHEAST AT 45 MPH.
PENNY SIZE HAIL MAY ALSO ACCOMPANY THESE DAMAGING WINDS.

LOCATIONS IMPACTED INCLUDE...
  HECTOR...BUFFALO LAKE AND LAKESIDE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4489 9500 4489 9450 4474 9450 4471 9456
      4471 9462 4468 9463 4460 9485 4465 9495
      4473 9503
TIME...MOT...LOC 0507Z 239DEG 39KT 4485 9486 4475 9477
          4468 9476
WIND...HAIL 60MPH 0.75IN

$$

JLT
121 
WWUS53 KMPX 060519
SVSMPX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
1219 AM CDT SUN MAY 6 2012

MNC129-060545-
/O.CON.KMPX.SV.W.0059.000000T0000Z-120506T0545Z/
RENVILLE MN-
1219 AM CDT SUN MAY 6 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR NORTHEASTERN
RENVILLE COUNTY UNTIL 1245 AM CDT...

AT 1215 AM CDT...NATIONAL WEATHER SERVICE RADAR INDICATED A LINE OF
SEVERE THUNDERSTORMS CAPABLE OF PRODUCING DAMAGING WINDS OF 60 MPH. 
THESE STORMS WERE LOCATED ALONG A LINE EXTENDING FROM 5 MILES SOUTH
OF THORPE TO HECTOR...MOVING NORTHEAST AT 45 MPH. PENNY SIZE HAIL MAY
ALSO ACCOMPANY THESE DAMAGING WINDS.

LOCATIONS IMPACTED INCLUDE...
  BUFFALO LAKE AND LAKESIDE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4489 9493 4489 9450 4474 9450 4471 9456
      4471 9462 4468 9463 4461 9476 4469 9479
      4477 9487
TIME...MOT...LOC 0519Z 239DEG 39KT 4489 9472 4479 9462
          4472 9462
WIND...HAIL 60MPH 0.75IN

$$

JLT
084 
WWUS53 KMPX 060534
SVSMPX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
1234 AM CDT SUN MAY 6 2012

MNC129-060549-
/O.CAN.KMPX.SV.W.0059.000000T0000Z-120506T0545Z/
RENVILLE MN-
1234 AM CDT SUN MAY 6 2012

...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN RENVILLE COUNTY
IS CANCELLED...

THE LINE OF STORMS WHICH PROMPTED THE WARNING HAVE MOVED OUT OF THE
WARNED AREA...HOWEVER GUSTY WINDS ARE STILL POSSIBLE WITH THESE
THUNDERSTORMS.

LAT...LON 4489 9493 4489 9450 4474 9450 4471 9456
      4471 9462 4468 9463 4461 9476 4469 9479
      4477 9487
TIME...MOT...LOC 0534Z 239DEG 39KT 4487 9456 4477 9446
          4470 9446

$$

JLT

The office that day

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

IssuedProductOfficeCountiesLasted
May 5, 7:58 PM CDTSpecial Weather StatementMPXAnoka, Chisago, Isanti, Sherburne47 min
May 5, 8:35 PM CDTRiver Flood WatchMPXTodd15 hr
May 5, 8:48 PM CDTSpecial Weather StatementMPXLac qui Parle27 min
May 5, 9:01 PM CDTSevere Thunderstorm WarningMPXLac qui Parle14 min
May 5, 9:24 PM CDTSevere Thunderstorm WarningMPXStevens41 min
May 5, 9:27 PM CDTSevere Thunderstorm WarningMPXLac qui Parle, Yellow Medicine63 min
May 5, 11:24 PM CDTSpecial Weather StatementMPXRenville66 min
May 6, 12:39 AM CDTSpecial Weather StatementMPXCarver, McLeod66 min
May 6, 1:35 AM CDTSpecial Weather StatementMPXCarver, Hennepin, Scott40 min
May 6, 1:44 AM CDTSevere Thunderstorm WarningMPXCarver, Dakota, Hennepin, Ramsey, Scott46 min
May 6, 2:14 AM CDTSpecial Weather StatementMPXDakota46 min
May 6, 2:24 AM CDTSevere Thunderstorm WarningMPXDakota, Goodhue, Washington36 min
May 6, 10:54 AM CDTRiver Flood WarningMPXRedwood22 hr
May 6, 10:54 AM CDTRiver Flood WarningMPXBrown33 hr

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.