Alert archive / Minnesota / Severe Thunderstorm Warnings in 2008

Severe Thunderstorm Warning 52, NWS Twin Cities, MN

May 30, 20084 counties in Minnesota

NWS Twin Cities, MN issued this severe thunderstorm warning at May 30, 2008, 3:36 PM CDT for 4 counties in Minnesota. It was in force for 54 min. 2 reports 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 30, 2008, 3:36 PM CDT (20:36 UTC)
Expired
May 30, 2008, 4:30 PM CDT
In force
54 min
Issued by
NWS Twin Cities, MN
Area
Storm-based polygon

Counties Blue Earth County, MN, Faribault County, MN, Martin County, MN, Watonwan County, MN

The radar

The Minneapolis radar (KMPX), 118 km from the middle of the area, began a volume at 20:37 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

TimeReportWhereRemark
May 30, 4:10 PM CDTHAIL 1.754 S Amboy, MN
May 30, 4:20 PM CDTHAIL 0.754 N Easton, MN

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

The nearest sounding before it

Minneapolis, MN (KMPX), launched 12:00Z, 8.6 hours before the alert went out and 117 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 2008-05-30Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 12 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Minneapolis, MN at 12:00Z on 2008-05-30The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 150 square meters per square second.1939587897117Sfc1 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
12 J/kg
Mixed-layer CIN
-413 J/kg
Mixed-layer LCL
505 m above ground
0-6 km bulk shear
38 kt
0-1 km storm-relative helicity
150 m²/s²
0-3 km storm-relative helicity
143 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.

000 
WUUS53 KMPX 302037
SVRMPX
MNC013-043-091-165-302130-
/O.NEW.KMPX.SV.W.0052.080530T2036Z-080530T2130Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
336 PM CDT FRI MAY 30 2008

THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTHERN BLUE EARTH COUNTY IN SOUTH CENTRAL MINNESOTA...
  SOUTHEASTERN WATONWAN COUNTY IN SOUTH CENTRAL MINNESOTA...
  NORTHERN FARIBAULT COUNTY IN SOUTH CENTRAL MINNESOTA...
  NORTHEASTERN MARTIN COUNTY IN SOUTH CENTRAL MINNESOTA...

* UNTIL 430 PM CDT

* AT 333 PM CDT...DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM...
  CAPABLE OF PRODUCING NICKEL SIZE HAIL AND DAMAGING WINDS IN EXCESS
  OF 60 MPH.  THIS STORM WAS LOCATED 11 MILES NORTHWEST OF
  WINNEBAGO...OR ABOUT 6 MILES NORTHEAST OF TRUMAN...AND MOVING EAST
  AT 34 MPH.

* LOCATIONS IMPACTED INCLUDE...
  WINNEBAGO...
  MAPLETON...
  MINNESOTA LAKE...

IF YOU ARE IN THE PATH OF THIS STORM...PREPARE IMMEDIATELY FOR
DAMAGING WINDS AND LARGE HAIL. SEEK SHELTER NOW INSIDE A STURDY
STRUCTURE AND STAY AWAY FROM WINDOWS.

REPORT ANY DAMAGE TO YOUR LOCAL EMERGENCY MANAGER...OR THE NEAREST
LAW ENFORCEMENT AGENCY...FOR RELAY TO THE NATIONAL WEATHER SERVICE.

LAT...LON 4398 9378 4373 9378 4368 9395 4376 9419
      4385 9447 4397 9439
TIME...MOT...LOC 2036Z 279DEG 30KT 4387 9430

$$

MDB
2 follow-up statements
000 
WWUS53 KMPX 302041
SVSMPX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
340 PM CDT FRI MAY 30 2008

MNC013-043-091-165-302130-
/O.CON.KMPX.SV.W.0052.000000T0000Z-080530T2130Z/
BLUE EARTH MN-WATONWAN MN-FARIBAULT MN-MARTIN MN-
340 PM CDT FRI MAY 30 2008

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 430 PM CDT
FOR NORTHEASTERN MARTIN...NORTHERN FARIBAULT...SOUTHEASTERN WATONWAN
AND SOUTHERN BLUE EARTH COUNTIES...

AT 337 PM CDT...DOPPLER RADAR CONTINUED TO INDICATE A SEVERE
THUNDERSTORM...CAPABLE OF PRODUCING NICKEL SIZE HAIL AND DAMAGING
WINDS IN EXCESS OF 60 MPH.  THIS SEVERE THUNDERSTORM WAS LOCATED 7
MILES WEST OF AMBOY...OR ABOUT 8 MILES EAST OF TRUMAN...AND MOVING 
EAST AT 34 MPH. ADDITIONAL THUNDERSTORMS EXTENDED TO THE NORTH OF 
THIS STORM TOWARDS VERNON CENTER AND WERE ALSO MOVING NORTHEAST AT 
34 MPH.

OTHER LOCATIONS IN THE WARNING INCLUDE WINNEBAGO...VERNON CENTER...
MINNESOTA LAKE...MAPLETON...EASTON...DELAVAN AND AMBOY.

IF YOU ARE IN THE PATH OF THIS STORM...PREPARE IMMEDIATELY FOR
DAMAGING WINDS AND LARGE HAIL. SEEK SHELTER NOW INSIDE A STURDY
STRUCTURE AND STAY AWAY FROM WINDOWS.

LAT...LON 4398 9378 4373 9378 4368 9395 4376 9419
      4385 9447 4397 9439
TIME...MOT...LOC 2040Z 279DEG 30KT 4386 9426

$$

MDB
000 
WWUS53 KMPX 302057
SVSMPX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
355 PM CDT FRI MAY 30 2008

MNC165-302105-
/O.CAN.KMPX.SV.W.0052.000000T0000Z-080530T2130Z/
WATONWAN MN-
355 PM CDT FRI MAY 30 2008

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN WATONWAN COUNTY
IS CANCELLED...

DOPPLER RADAR INDICATED THAT THE SEVERE STORM HAD WEAKENED OR MOVED
OUT OF THE WARNED AREA. THEREFORE...THE SEVERE THUNDERSTORM WARNING 
HAS BEEN CANCELLED. ADDITIONAL THUNDERSTORMS WERE DEVELOPING ACROSS 
EASTERN WATONWAN COUNTY BUT ARE BELOW SEVERE LIMITS AT THIS TIME.

LAT...LON 4376 9419 4385 9436 4397 9436 4398 9378
      4373 9378 4368 9395
TIME...MOT...LOC 2055Z 279DEG 30KT 4383 9409

$$

MNC013-043-091-302130-
/O.CON.KMPX.SV.W.0052.000000T0000Z-080530T2130Z/
BLUE EARTH MN-FARIBAULT MN-MARTIN MN-
355 PM CDT FRI MAY 30 2008

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 430 PM CDT
FOR EXTREME NORTHEASTERN MARTIN...NORTHERN FARIBAULT AND SOUTHERN
BLUE EARTH COUNTIES...

AT 354 PM CDT... NICKEL SIZE HAIL AND DAMAGING WINDS IN EXCESS OF 60
MPH.  THIS SEVERE THUNDERSTORM WAS LOCATED 5 MILES SOUTHEAST OF
AMBOY...OR ABOUT 6 MILES NORTHEAST OF WINNEBAGO...AND MOVING EAST AT
34 MPH.

OTHER LOCATIONS IN THE WARNING INCLUDE WINNEBAGO...VERNON CENTER...
MINNESOTA LAKE...MAPLETON...EASTON...DELAVAN AND AMBOY.

IF YOU ARE IN THE PATH OF THIS STORM...PREPARE IMMEDIATELY FOR
DAMAGING WINDS AND LARGE HAIL. SEEK SHELTER NOW INSIDE A STURDY
STRUCTURE AND STAY AWAY FROM WINDOWS.

LAT...LON 4376 9419 4385 9436 4397 9436 4398 9378
      4373 9378 4368 9395
TIME...MOT...LOC 2055Z 279DEG 30KT 4383 9409

$$

MDB

The office that day

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

IssuedProductOfficeCountiesLasted
May 29, 9:11 PM CDTSevere Thunderstorm WarningMPXBlue Earth, Faribault, Martin, Watonwan49 min
May 29, 9:41 PM CDTSevere Thunderstorm WarningMPXKandiyohi, Redwood, Renville16 min
May 30, 1:40 PM CDTSevere Thunderstorm WarningMPXBrown, Redwood50 min
May 30, 1:56 PM CDTSevere Thunderstorm WarningMPXBrown49 min
May 30, 2:20 PM CDTSevere Thunderstorm WarningMPXWatonwan40 min
May 30, 2:44 PM CDTSevere Thunderstorm WarningMPXBrown31 min
May 30, 2:58 PM CDTSevere Thunderstorm WarningMPXBlue Earth, Watonwan47 min
May 30, 3:06 PM CDTSevere Thunderstorm WarningMPXPope, Stevens54 min
May 30, 3:14 PM CDTSevere Thunderstorm WarningMPXStevens46 min
May 30, 3:24 PM CDTTornado WarningMPXPope36 min
May 30, 3:27 PM CDTSevere Thunderstorm WarningMPXBlue Earth, Le Sueur, Rice63 min
May 30, 3:32 PM CDTSevere Thunderstorm WarningMPXKandiyohi, Swift58 min
May 30, 3:47 PM CDTSevere Thunderstorm WarningMPXSteele28 min
May 30, 3:51 PM CDTSevere Thunderstorm WarningMPXPope39 min
May 30, 3:58 PM CDTTornado WarningMPXPope27 min
May 30, 4:03 PM CDTSevere Thunderstorm WarningMPXRice27 min
May 30, 4:07 PM CDTSevere Thunderstorm WarningMPXBrown, Nicollet53 min
May 30, 4:23 PM CDTSevere Thunderstorm WarningMPXKandiyohi, Pope, Stearns, Swift52 min
May 30, 4:26 PM CDTSevere Thunderstorm WarningMPXFaribault, Freeborn51 min
May 30, 4:33 PM CDTSevere Thunderstorm WarningMPXCarver, McLeod57 min
May 30, 4:44 PM CDTSevere Thunderstorm WarningMPXKandiyohi, Meeker61 min
May 30, 4:58 PM CDTSevere Thunderstorm WarningMPXNicollet62 min
May 30, 5:02 PM CDTSevere Thunderstorm WarningMPXCarver, McLeod, Scott, Sibley43 min
May 30, 5:40 PM CDTSevere Thunderstorm WarningMPXCarver, McLeod, Meeker, Wright50 min
May 30, 5:45 PM CDTSevere Thunderstorm WarningMPXCarver, Scott, Sibley45 min
May 30, 6:38 PM CDTSevere Thunderstorm WarningMPXCarver, McLeod37 min

Nearby

Severe Thunderstorm Warnings in Minnesota, 2008Every severe thunderstorm warning in 2008

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.