Alert archive / Minnesota / Severe Thunderstorm Warnings in 2008

Severe Thunderstorm Warning 6, NWS Twin Cities, MN

May 2, 2008Freeborn County, Steele County, Waseca County, Minnesota

NWS Twin Cities, MN issued this severe thunderstorm warning at May 2, 2008, 4:08 PM CDT for Freeborn County, Steele County, Waseca County, Minnesota. It was in force for 52 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 2, 2008, 4:08 PM CDT (21:08 UTC)
Expired
May 2, 2008, 5:00 PM CDT
In force
52 min
Issued by
NWS Twin Cities, MN
Area
Storm-based polygon

Counties Freeborn County, MN, Steele County, MN, Waseca County, MN

The radar

The Minneapolis radar (KMPX), 103 km from the middle of the area, began a volume at 21:09 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 2, 4:20 PM CDTTSTM WND GST 63Ellendale, MNTIME ESTIMATED BASED ON RADAR DATA. DAMAGE AROUND TOWN CONSISTED OF MOSTLY 2 INCH DIAMETER LIMBS AND LESS. ONE 10 INCH LIMB DOWNED.
May 2, 4:27 PM CDTTSTM WND GST 657 N Ellendale, MNREPORTED BY EMPLOYEES OF THE UNION PACIFIC RAILROAD VIA STEELE COUNTY DISPATCH

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, 9.1 hours before the alert went out and 103 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 2008-05-02Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2 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 2008-05-02The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 208 square meters per square second.1939587897Sfc1 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
2 J/kg
Mixed-layer CIN
0 J/kg
Mixed-layer LCL
523 m above ground
0-6 km bulk shear
30 kt
0-1 km storm-relative helicity
208 m²/s²
0-3 km storm-relative helicity
229 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

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

000 
WUUS53 KMPX 022108
SVRMPX
MNC047-147-161-022200-
/O.NEW.KMPX.SV.W.0006.080502T2108Z-080502T2200Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
408 PM CDT FRI MAY 2 2008

THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  WASECA COUNTY IN SOUTH CENTRAL MINNESOTA...
  STEELE COUNTY IN SOUTH CENTRAL MINNESOTA...
  NORTHERN FREEBORN COUNTY IN SOUTH CENTRAL MINNESOTA...

* UNTIL 500 PM CDT

* AT 405 PM CDT...DOPPLER RADAR INDICATED A LINE OF SEVERE
  THUNDERSTORMS...CAPABLE OF PRODUCING PENNY SIZE HAIL AND DAMAGING
  WINDS IN EXCESS OF 60 MPH.  THESE STORMS WERE LOCATED ALONG A LINE
  EXTENDING FROM 13 MILES SOUTH OF NEW RICHLAND TO 10 MILES SOUTHEAST
  OF NEW RICHLAND TO 22 MILES SOUTHEAST OF NEW RICHLAND...AND MOVING
  NORTH AT 38 MPH.

* LOCATIONS IMPACTED INCLUDE...
  NEW RICHLAND...
  WASECA...
  OWATONNA...
  MEDFORD...
  INTERSTATE 35 BETWEEN CLARKS GROVE AND MEDFORD...

DAMAGING WINDS UP TO 62 MPH WERE REPORTED IN ALBERT LEA WITH THIS 
STORM.

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 4419 9371 4420 9306 4364 9306 4372 9333
      4364 9363
TIME...MOT...LOC 2108Z 171DEG 33KT 4374 9358 4382 9335
          4376 9312

$$

KAT
2 follow-up statements
000 
WWUS53 KMPX 022133
SVSMPX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
432 PM CDT FRI MAY 2 2008

MNC047-022142-
/O.CAN.KMPX.SV.W.0006.000000T0000Z-080502T2200Z/
FREEBORN MN-
432 PM CDT FRI MAY 2 2008

...THE SEVERE THUNDERSTORM WARNING FOR NORTHERN FREEBORN COUNTY IS
CANCELLED...

DOPPLER RADAR INDICATED THAT THE SEVERE STORM HAD MOVED OUT OF THE 
WARNED AREA. THEREFORE...THE SEVERE THUNDERSTORM WARNING FOR 
FREEBORN COUNTY HAS BEEN CANCELLED.

REPORT ANY PAST SEVERE WEATHER TO LOCAL LAW ENFORCEMENT FOR RELAY TO 
THE NATIONAL WEATHER SERVICE.

LAT...LON 4419 9371 4420 9306 4386 9306 4386 9365
TIME...MOT...LOC 2132Z 171DEG 33KT 4396 9363 4398 9317

$$

MNC147-161-022200-
/O.CON.KMPX.SV.W.0006.000000T0000Z-080502T2200Z/
WASECA MN-STEELE MN-
432 PM CDT FRI MAY 2 2008

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 500 PM CDT
FOR STEELE AND WASECA COUNTIES...

AT 430 PM CDT...DOPPLER RADAR CONTINUED TO INDICATE A LINE OF SEVERE
THUNDERSTORMS...CAPABLE OF PRODUCING PENNY SIZE HAIL AND DAMAGING
WINDS IN EXCESS OF 60 MPH.  THESE SEVERE THUNDERSTORMS WERE LOCATED
ALONG A LINE EXTENDING FROM 3 MILES WEST OF OTISCO TO STEELE
CENTER...AND MOVING NORTH AT 38 MPH.

OTHER LOCATIONS IN THE WARNING INCLUDE STEELE CENTER...OTISCO...
MOLAND...MERTON...DEERFIELD...CLINTON FALLS...BIXBY...WASECA...
OWATONNA AND NEW RICHLAND.

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 4419 9371 4420 9306 4386 9306 4386 9365
TIME...MOT...LOC 2132Z 171DEG 33KT 4396 9363 4398 9317

$$

KAT
000 
WWUS53 KMPX 022200
SVSMPX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
457 PM CDT FRI MAY 2 2008

MNC147-161-022207-
/O.EXP.KMPX.SV.W.0006.000000T0000Z-080502T2200Z/
WASECA MN-STEELE MN-
457 PM CDT FRI MAY 2 2008

...THE SEVERE THUNDERSTORM WARNING FOR STEELE AND WASECA COUNTIES
EXPIRES AT 500 PM CDT...

AT ABOUT 420 PM CDT...DAMAGING WINDS OF 63 MPH WERE REPORTED IN 
ELLENDALE WITH THE STORM. SEVERAL REPORTS OF UP TO 10 INCH TREE 
LIMBS DOWNED HAVE BEEN RECEIVED.

STORMS REMAIN IN THE AREA...THAT WILL PRODUCE HEAVY RAIN AND 
DANGEROUS LIGHTNING...AS WELL AS 50 MPH WINDS. THE HEAVY RAIN MAY 
CAUSE PONDING OF WATER ON ROADS.


LAT...LON 4419 9371 4420 9306 4386 9306 4386 9365
TIME...MOT...LOC 2157Z 171DEG 33KT 4419 9368 4421 9322

$$

KAT/MCS

The office that day

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

IssuedProductOfficeCountiesLasted
May 1, 8:24 PM CDTSevere Thunderstorm WarningMPXRedwood36 min
May 1, 9:08 PM CDTSevere Thunderstorm WarningMPXBrown, Watonwan37 min
May 1, 9:41 PM CDTSevere Thunderstorm WarningMPXBrown, Redwood49 min
May 1, 10:48 PM CDTSevere Thunderstorm WarningMPXRenville, Sibley27 min
May 2, 3:51 AM CDTWind AdvisoryMPXBenton, Blue Earth, Brown, Chippewa, Douglas, Faribault and 20 more29 hr

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.