Alert archive / Minnesota / Severe Thunderstorm Warnings in 2008

Severe Thunderstorm Warning 8, NWS Twin Cities, MN

May 6, 2008Brown County, Redwood County, Minnesota

NWS Twin Cities, MN issued this severe thunderstorm warning at May 6, 2008, 11:50 AM CDT for Brown County, Redwood County, Minnesota. It was in force for 37 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 6, 2008, 11:50 AM CDT (16:50 UTC)
Expired
May 6, 2008, 12:27 PM CDT
In force
37 min
Issued by
NWS Twin Cities, MN
Area
Storm-based polygon

Counties Brown County, MN, Redwood County, MN

The radar

The Minneapolis radar (KMPX), 142 km from the middle of the area, began a volume at 16:50 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 6, 11:54 AM CDTHAIL 0.756 Sw Lucan, MNHAIL COVERED GROUND ABOUT ONE INCH DEEP.

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, 4.8 hours before the alert went out and 140 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 2008-05-06Temperature 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 12:00Z on 2008-05-06The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 174 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
2336 m above ground
0-6 km bulk shear
48 kt
0-1 km storm-relative helicity
174 m²/s²
0-3 km storm-relative helicity
176 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 061651
SVRMPX
MNC015-127-061745-
/O.NEW.KMPX.SV.W.0008.080506T1650Z-080506T1745Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
1150 AM CDT TUE MAY 6 2008

THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTHERN REDWOOD COUNTY IN SOUTHWEST MINNESOTA...  
  WESTERN BROWN COUNTY IN SOUTH CENTRAL MINNESOTA...

* UNTIL 1245 PM CDT

* AT 1146 AM 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 6 MILES NORTH OF WALNUT GROVE...
  AND MOVING EAST AT 31 MPH.

* LOCATIONS IMPACTED INCLUDE...
  LAMBERTON...
  WABASSO...

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 4450 9493 4416 9495 4416 9510 4420 9510
      4420 9531 4421 9556 4439 9559
TIME...MOT...LOC 1650Z 265DEG 27KT 4432 9547

$$
2 follow-up statements
000 
WWUS53 KMPX 061707
SVSMPX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
1207 PM CDT TUE MAY 6 2008

MNC015-127-061745-
/O.CON.KMPX.SV.W.0008.000000T0000Z-080506T1745Z/
REDWOOD MN-BROWN MN-
1207 PM CDT TUE MAY 6 2008

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1245 PM CDT 
FOR WESTERN BROWN AND SOUTHERN REDWOOD COUNTIES...

AT 1203 PM CDT...DOPPLER RADAR CONTINUED TO INDICATE A SEVERE
THUNDERSTORM...CAPABLE OF PRODUCING PENNY SIZE HAIL AND DAMAGING
WINDS IN EXCESS OF 60 MPH.  THIS SEVERE THUNDERSTORM WAS LOCATED 7
MILES NORTH OF REVERE...OR ABOUT 8 MILES NORTHEAST OF WALNUT GROVE...
AND MOVING EAST AT 26 MPH.

OTHER LOCATIONS IN THE WARNING INCLUDE WANDA...WALNUT GROVE...
WABASSO...SPRINGFIELD...SANBORN...REVERE...LAMBERTON AND CLEMENTS.

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 4420 9510 4421 9556 4432 9556 4440 9532
      4449 9493 4416 9495 4416 9510
TIME...MOT...LOC 1707Z 269DEG 23KT 4432 9534

$$
000 
WWUS53 KMPX 061727
SVSMPX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
1227 PM CDT TUE MAY 6 2008

MNC015-127-061737-
/O.CAN.KMPX.SV.W.0008.000000T0000Z-080506T1745Z/
REDWOOD MN-BROWN MN-
1227 PM CDT TUE MAY 6 2008

...THE SEVERE THUNDERSTORM WARNING FOR WESTERN BROWN AND SOUTHERN 
REDWOOD COUNTIES IS CANCELLED...

DOPPLER RADAR INDICATED THAT THE SEVERE STORM HAD WEAKENED TO BELOW 
SEVERE LIMITS. THEREFORE...THE SEVERE THUNDERSTORM WARNING HAS BEEN 
CANCELLED. MORE THUNDERSTORMS ARE EXPECTED OVER THESE COUNTIES THIS 
AFTERNOON INTO THIS EVENING...SOME OF WHICH MAY BECOME SEVERE AGAIN.

RELAY SEVERE WEATHER REPORTS TO YOUR LOCAL LAW ENFORCEMENT FOR RELAY 
TO THE NATIONAL WEATHER SERVICE.

LAT...LON 4420 9510 4421 9556 4432 9556 4440 9532
      4449 9493 4416 9495 4416 9510
TIME...MOT...LOC 1727Z 265DEG 27KT 4434 9508

$$

The office that day

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

IssuedProductOfficeCountiesLasted
May 6, 9:32 AM CDTSevere Thunderstorm WarningMPXLac qui Parle, Yellow Medicine58 min
May 6, 3:05 PM CDTSevere Thunderstorm WarningMPXRedwood40 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.