Alert archive / Minnesota / Severe Thunderstorm Warnings in 2008

Severe Thunderstorm Warning 63, NWS Twin Cities, MN

May 30, 20084 counties in Minnesota

NWS Twin Cities, MN issued this severe thunderstorm warning at May 30, 2008, 5:40 PM CDT for 4 counties in 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 30, 2008, 5:40 PM CDT (22:40 UTC)
Expired
May 30, 2008, 6:30 PM CDT
In force
50 min
Issued by
NWS Twin Cities, MN
Area
Storm-based polygon

Counties Carver County, MN, McLeod County, MN, Meeker County, MN, Wright County, MN

The radar

The Minneapolis radar (KMPX), 50 km from the middle of the area, began a volume at 22:41 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.

What was reported inside it

TimeReportWhereRemark
May 30, 5:42 PM CDTHAIL 0.75Dassel, 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, 10.7 hours before the alert went out and 47 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 302241
SVRMPX
MNC019-085-093-171-302330-
/O.NEW.KMPX.SV.W.0063.080530T2240Z-080530T2330Z/

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

THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTHWESTERN WRIGHT COUNTY IN CENTRAL MINNESOTA...
  SOUTHEAST MEEKER COUNTY IN CENTRAL MINNESOTA...
  NORTHEASTERN MCLEOD COUNTY IN CENTRAL MINNESOTA...
  NORTHWESTERN CARVER COUNTY IN EAST CENTRAL MINNESOTA...

* UNTIL 630 PM CDT

* AT 536 PM CDT...DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM...
  CAPABLE OF PRODUCING QUARTER SIZE HAIL AND DAMAGING WINDS IN EXCESS
  OF 60 MPH.  THIS STORM WAS LOCATED 4 MILES WEST OF DASSEL...AND
  MOVING EAST AT 35 MPH.

* LOCATIONS IMPACTED INCLUDE...
  DASSEL...
  COKATO...
  WINSTED...
  LESTER PRAIRIE...
  RICE LAKE...
  STOCKHOLM...
  SILVER 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.

DOPPLER RADAR HAS INDICATED SOME WEAK ROTATION WITHIN THIS STORM.
WHILE NOT IMMEDIATELY LIKELY...A TORNADO MAY STILL DEVELOP. IF A
TORNADO IS SPOTTED...ACT QUICKLY AND MOVE TO A PLACE OF SAFETY IN A
STURDY STRUCTURE...SUCH AS A BASEMENT OR SMALL INTERIOR ROOM.

LAT...LON 4505 9400 4498 9383 4482 9402 4496 9439
      4504 9451 4513 9435
TIME...MOT...LOC 2240Z 292DEG 30KT 4505 9434

$$
3 follow-up statements
000 
WWUS53 KMPX 302257
SVSMPX

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

MNC019-085-093-171-302330-
/O.CON.KMPX.SV.W.0063.000000T0000Z-080530T2330Z/
WRIGHT MN-MEEKER MN-MCLEOD MN-CARVER MN-
557 PM CDT FRI MAY 30 2008

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 630 PM CDT
FOR NORTHWESTERN CARVER...NORTHEASTERN MCLEOD...SOUTHEASTERN MEEKER
AND SOUTHWESTERN WRIGHT COUNTIES...

AT 542 PM CDT THREE QUARTER INCH DIAMETER HAIL WAS REPORTED
IN DASSEL WITH THIS STORM.

AT 553 PM CDT...DOPPLER RADAR CONTINUED TO INDICATE A SEVERE
THUNDERSTORM...CAPABLE OF PRODUCING QUARTER SIZE HAIL AND DAMAGING
WINDS IN EXCESS OF 60 MPH.  THIS SEVERE THUNDERSTORM WAS LOCATED NEAR
STOCKHOLM...OR ABOUT 5 MILES SOUTHEAST OF DASSEL...AND MOVING EAST AT
37 MPH.

OTHER LOCATIONS IN THE WARNING INCLUDE STOCKHOLM...ROSE CITY...
WINSTED...WATERTOWN...SILVER LAKE...NEW GERMANY...LESTER PRAIRIE...
HOWARD LAKE AND COKATO.

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.

DOPPLER RADAR HAS INDICATED SOME WEAK ROTATION WITHIN THIS STORM.
WHILE NOT IMMEDIATELY LIKELY...A TORNADO MAY STILL DEVELOP. IF A
TORNADO IS SPOTTED...ACT QUICKLY AND MOVE TO A PLACE OF SAFETY IN A
STURDY STRUCTURE...SUCH AS A BASEMENT OR SMALL INTERIOR ROOM.

LAT...LON 4496 9439 4497 9440 4499 9444 4511 9426
      4505 9400 4502 9395 4498 9383 4482 9402
TIME...MOT...LOC 2257Z 286DEG 32KT 4501 9421

$$
000 
WWUS53 KMPX 302310
SVSMPX

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

MNC093-302319-
/O.CAN.KMPX.SV.W.0063.000000T0000Z-080530T2330Z/
MEEKER MN-
609 PM CDT FRI MAY 30 2008

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

DOPPLER RADAR INDICATED THAT THE SEVERE STORM HAD WEAKENED BELOW 
SEVERE LIMITS. THEREFORE...THE SEVERE THUNDERSTORM WARNING
HAS BEEN CANCELLED.

LAT...LON 4494 9434 4498 9426 4504 9421 4509 9416
      4505 9400 4502 9395 4498 9384 4482 9402
TIME...MOT...LOC 2309Z 288DEG 26KT 4498 9417

$$

MNC019-085-171-302330-
/O.CON.KMPX.SV.W.0063.000000T0000Z-080530T2330Z/
WRIGHT MN-MCLEOD MN-CARVER MN-
609 PM CDT FRI MAY 30 2008

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 630 PM CDT
FOR NORTHWESTERN CARVER...NORTHEASTERN MCLEOD AND SOUTHWESTERN WRIGHT
COUNTIES...

AT 606 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 6
MILES NORTH OF SILVER LAKE...OR ABOUT 6 MILES SOUTH OF COKATO...AND
MOVING EAST AT 30 MPH.

OTHER LOCATIONS IN THE WARNING INCLUDE ROSE CITY...WINSTED...
WATERTOWN...SILVER LAKE...NEW GERMANY...LESTER PRAIRIE AND HOWARD
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.

DOPPLER RADAR HAS INDICATED SOME WEAK ROTATION WITHIN THIS STORM.
WHILE NOT IMMEDIATELY LIKELY...A TORNADO MAY STILL DEVELOP. IF A
TORNADO IS SPOTTED...ACT QUICKLY AND MOVE TO A PLACE OF SAFETY IN A
STURDY STRUCTURE...SUCH AS A BASEMENT OR SMALL INTERIOR ROOM.

LAT...LON 4494 9434 4498 9426 4504 9421 4509 9416
      4505 9400 4502 9395 4498 9384 4482 9402
TIME...MOT...LOC 2309Z 288DEG 26KT 4498 9417

$$
000 
WWUS53 KMPX 302331
SVSMPX

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

MNC019-085-171-302338-
/O.EXP.KMPX.SV.W.0063.000000T0000Z-080530T2330Z/
WRIGHT MN-MCLEOD MN-CARVER MN-
628 PM CDT FRI MAY 30 2008

...THE SEVERE THUNDERSTORM WARNING FOR NORTHWESTERN CARVER...
NORTHEASTERN MCLEOD AND SOUTHWESTERN WRIGHT COUNTIES EXPIRES AT 630
PM CDT...

THUNDERSTORMS HAD WEAKENED BELOW SEVERE LIMITS AND THE WARNING WILL BE 
ALLOWED TO EXPIRE. HOWEVER...HAIL UP TO DIME SIZE AND 40 MPH WINDS ARE
STILL POSSIBLE WITH THE STORMS MOVING ACROSS EASTERN MCLEOD AND WESTERN 
CARVER COUNTIES. REMAIN ALERT FOR POSSIBLE ADDITIONAL WARNINGS.

LAT...LON 4494 9434 4498 9426 4504 9421 4509 9416
      4505 9400 4502 9395 4498 9384 4482 9402
TIME...MOT...LOC 2328Z 288DEG 26KT 4494 9399

$$

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, 3:36 PM CDTSevere Thunderstorm WarningMPXBlue Earth, Faribault, Martin, Watonwan54 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, 5:45 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.