Alert archive / Minnesota / Severe Thunderstorm Warnings in 2008

Severe Thunderstorm Warning 65, NWS Twin Cities, MN

May 30, 2008Carver County, McLeod County, Minnesota

NWS Twin Cities, MN issued this severe thunderstorm warning at May 30, 2008, 6:38 PM CDT for Carver County, McLeod County, Minnesota. It was in force for 37 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, 6:38 PM CDT (23:38 UTC)
Expired
May 30, 2008, 7:15 PM CDT
In force
37 min
Issued by
NWS Twin Cities, MN
Area
Storm-based polygon

Counties Carver County, MN, McLeod County, MN

The radar

The Minneapolis radar (KMPX), 24 km from the middle of the area, began a volume at 23:40 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, 6:55 PM CDTHAIL 0.75Mayer, MN
May 30, 7:00 PM CDTHAIL 0.75Lester Prairie, 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, 11.6 hours before the alert went out and 22 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 302339
SVRMPX
MNC019-085-310015-
/O.NEW.KMPX.SV.W.0065.080530T2338Z-080531T0015Z/

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

THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHEASTERN MCLEOD COUNTY IN CENTRAL MINNESOTA...
  NORTHERN CARVER COUNTY IN EAST CENTRAL MINNESOTA...

* UNTIL 715 PM CDT

* AT 636 PM CDT...DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM...
  CAPABLE OF PRODUCING PENNY SIZE HAIL AND DAMAGING WINDS IN EXCESS
  OF 60 MPH.  THIS STORM WAS LOCATED 3 MILES NORTH OF LESTER
  PRAIRIE...AND MOVING EAST AT 36 MPH.

* LOCATIONS IMPACTED INCLUDE...
  WACONIA...
  MAYER...
  LESTER PRAIRIE...

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.

SEVERE THUNDERSTORMS CAN PRODUCE TORNADOES WITH LITTLE OR NO ADVANCE
WARNING. PREPARE TO MOVE TO A PLACE OF SAFETY IN A STURDY STRUCTURE
SUCH AS A BASEMENT OR SMALL INTERIOR ROOM IF A TORNADO IS SPOTTED.

LAT...LON 4494 9387 4492 9380 4489 9376 4485 9365
      4477 9376 4481 9395 4490 9410 4498 9408
TIME...MOT...LOC 2338Z 290DEG 32KT 4491 9400

$$
3 follow-up statements
000 
WWUS53 KMPX 302352
SVSMPX

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

MNC019-085-310015-
/O.CON.KMPX.SV.W.0065.000000T0000Z-080531T0015Z/
MCLEOD MN-CARVER MN-
651 PM CDT FRI MAY 30 2008

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 715 PM CDT
FOR NORTHERN CARVER AND NORTHEASTERN MCLEOD COUNTIES...

AT 647 PM CDT...THREE QUARTER INCH HAIL WAS REPORTED IN SILVER LAKE
BY A TRAINED SPOTTER. 

AT 648 PM CDT...DOPPLER RADAR CONTINUED TO INDICATE A LINE OF SEVERE
THUNDERSTORMS...CAPABLE OF PRODUCING QUARTER SIZE HAIL AND DAMAGING
WINDS IN EXCESS OF 60 MPH.  THESE SEVERE THUNDERSTORMS WERE LOCATED
ALONG A LINE EXTENDING FROM 5 MILES NORTH OF WACONIA TO 5 MILES WEST
OF LESTER PRAIRIE...AND MOVING SOUTHEAST AT 16 MPH.

OTHER LOCATIONS IN THE WARNING INCLUDE WACONIA...NEW GERMANY...
MAYER...LESTER PRAIRIE AND COLOGNE.

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 4481 9395 4490 9410 4493 9409 4495 9407
      4493 9386 4492 9380 4489 9376 4485 9365
      4477 9376
TIME...MOT...LOC 2351Z 302DEG 14KT 4491 9378 4488 9414

$$
000 
WWUS53 KMPX 310003
SVSMPX

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

MNC019-085-310015-
/O.CON.KMPX.SV.W.0065.000000T0000Z-080531T0015Z/
MCLEOD MN-CARVER MN-
702 PM CDT FRI MAY 30 2008

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 715 PM CDT
FOR NORTHERN CARVER AND NORTHEASTERN MCLEOD COUNTIES...

AT 700 PM CDT...DIME SIZE HAIL WAS REPORTED IN LESTER PRAIRIE.

AT 701 PM CDT... DOPPLER RADAR INDICATED NICKEL SIZE HAIL AND
DAMAGING WINDS IN EXCESS OF 60 MPH.  THESE SEVERE THUNDERSTORMS
WERE LOCATED ALONG A LINE EXTENDING FROM 3 MILES NORTHEAST OF WACONIA
TO LESTER PRAIRIE...AND MOVING SOUTHEAST AT 16 MPH.

OTHER LOCATIONS IN THE WARNING INCLUDE WACONIA...NEW GERMANY...
MAYER...LESTER PRAIRIE AND COLOGNE.

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 4481 9395 4490 9410 4493 9409 4495 9407
      4493 9386 4492 9380 4489 9376 4485 9365
      4477 9376
TIME...MOT...LOC 0002Z 302DEG 14KT 4489 9375 4486 9403

$$
000 
WWUS53 KMPX 310015
SVSMPX

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

MNC019-085-310023-
/O.EXP.KMPX.SV.W.0065.000000T0000Z-080531T0015Z/
MCLEOD MN-CARVER MN-
713 PM CDT FRI MAY 30 2008

...THE SEVERE THUNDERSTORM WARNING FOR NORTHERN CARVER AND
NORTHEASTERN MCLEOD COUNTIES EXPIRES AT 715 PM CDT...

THUNDERSTORMS HAD WEAKENED BELOW SEVERE LIMITS AND THE WARNING WILL BE
ALLOWED TO EXPIRE. HOWEVER...THUNDERSTORMS IN THE VICTORIA...WACONIA
AND NORWOOD/YOUNG AMERICA AREAS COULD PRODUCE HAIL UP TO DIME SIZE AND 
40 MPH WIND GUSTS. REMAIN ALERT FOR POSSIBLE ADDITIONAL WARNINGS.

LAT...LON 4481 9395 4490 9410 4493 9409 4495 9407
      4493 9386 4492 9380 4489 9376 4485 9365
      4477 9376
TIME...MOT...LOC 0013Z 302DEG 14KT 4487 9370 4484 9398

$$

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, 5:40 PM CDTSevere Thunderstorm WarningMPXCarver, McLeod, Meeker, Wright50 min
May 30, 5:45 PM CDTSevere Thunderstorm WarningMPXCarver, Scott, Sibley45 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.