Alert archive / Minnesota / Severe Thunderstorm Warnings in 2005

Severe Thunderstorm Warning 388, NWS Twin Cities, MN

September 12, 20054 counties in Minnesota

NWS Twin Cities, MN issued this severe thunderstorm warning at Sep 12, 2005, 11:47 PM CDT for 4 counties in Minnesota. It was in force for 58 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
Sep 12, 2005, 11:47 PM CDT (04:47 UTC)
Expired
Sep 13, 2005, 12:45 AM CDT
In force
58 min
Issued by
NWS Twin Cities, MN
Area
Counties, with a storm outline in the text

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

The radar

The Minneapolis radar (KMPX), 145 km from the middle of the area, began a volume at 04:48 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.

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
Sep 12, 7:45 PM CDTTornado WatchSPC6 hr

The nearest sounding before it

Minneapolis, MN (KMPX), launched 00:00Z, 4.8 hours before the alert went out and 144 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 00:00Z on 2005-09-13Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 968 joules per kilogram.LCLLFCEL10008507005003002001001 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 00:00Z on 2005-09-13The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 94 square meters per square second.19395878Sfc1 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
968 J/kg
Mixed-layer CIN
-17 J/kg
Mixed-layer LCL
851 m above ground
0-6 km bulk shear
43 kt
0-1 km storm-relative helicity
94 m²/s²
0-3 km storm-relative helicity
161 m²/s²
Significant tornado parameter
0.5
Supercell composite
3.7

Open this sounding in Storm Lab

The text

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

000 
WUUS53 KMPX 130447
SVRMPX
MNC013-043-091-165-130545-
/O.NEW.KMPX.SV.W.0388.050913T0447Z-050913T0545Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
1147 PM CDT MON SEP 12 2005

THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A

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

* UNTIL 1245 AM CDT

* AT 1144 PM CDT...DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM...
  CAPABLE OF PRODUCING DAMAGING WINDS IN EXCESS OF 65 MPH. THIS STORM
  WAS LOCATED 9 MILES WEST OF DUNNELL...OR ABOUT OVER JACKSON...AND
  MOVING EAST AT 60 MPH.

* LOCATIONS IMPACTED INCLUDE...
  SHERBURN...
  TRIMONT...
  FOXLAKE...
  WELCOME...
  NORTHROP...
  TRUMAN...
  GRANADA...
  WINNEBAGO...
  AMBOY...
  VERNON CENTER...
  GOOD THUNDER...
  MAPLETON...
  MINNESOTA LAKE...

THIS IS A DANGEROUS STORM. IF YOU ARE IN ITS PATH...PREPARE
IMMEDIATELY FOR DAMAGING WINDS...DESTRUCTIVE HAIL...AND DEADLY CLOUD
TO GROUND LIGHTNING. PEOPLE OUTSIDE SHOULD MOVE TO A SHELTER...
PREFERABLY INSIDE A STRONG BUILDING BUT AWAY FROM WINDOWS.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 200 AM CDT TUESDAY MORNING
FOR SOUTHERN MINNESOTA.

LAT...LON 4366 9506 4349 9498 4383 9380 4409 9383

$$
1 follow-up statement
000 
WWUS53 KMPX 130511
SVSMPX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
1207 AM CDT TUE SEP 13 2005

MNC013-043-091-165-130545-
/O.CON.KMPX.SV.W.0388.000000T0000Z-050913T0545Z/
BLUE EARTH MN-WATONWAN MN-FARIBAULT MN-MARTIN MN-
1207 AM CDT TUE SEP 13 2005

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1245 AM CDT
FOR MARTIN...FARIBAULT...WATONWAN AND BLUE EARTH COUNTIES...

AT 1205 AM CDT...DOPPLER RADAR CONTINUED TO INDICATE A SEVERE
THUNDERSTORM...CAPABLE OF PRODUCING DAMAGING WINDS IN EXCESS OF 60 
MPH. THIS STORM WAS LOCATED NEAR WELCOME...OR JUST WEST OF 
FAIRMONT...AND MOVING EAST AT 60 MPH.

AT MIDNIGHT...TREES WERE REPORTED DOWN IN JACKSON MINNESOTA IN 
JACKSON COUNTY IN CONNECTION WITH THIS STORM.

OTHER LOCATIONS IN THE WARNING INCLUDE FOXLAKE...WINNEBAGO...VERNON
CENTER...TRUMAN...TRIMONT...ST CLAIR...SHERBURN...NORTHROP...
MINNESOTA LAKE...MAPLETON...GRANADA...GOOD THUNDER...FAIRMONT...
DUNNELL AND AMBOY.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 200 AM CDT TUESDAY MORNING
FOR SOUTHERN MINNESOTA.

LAT...LON 4366 9506 4349 9498 4383 9380 4409 9383

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Sep 12, 7:14 PM CDTTornado WarningMPXChippewa, Lac qui Parle, Yellow Medicine61 min
Sep 12, 7:31 PM CDTFlash Flood WarningMPXChippewa, Lac qui Parle, Yellow Medicine3 hr
Sep 12, 8:09 PM CDTSevere Thunderstorm WarningMPXMcLeod, Meeker, Wright66 min
Sep 12, 8:18 PM CDTSevere Thunderstorm WarningMPXKandiyohi, Renville57 min
Sep 12, 9:10 PM CDTFlash Flood WarningMPXWright3 hr
Sep 12, 9:10 PM CDTSevere Thunderstorm WarningMPXAnoka, Hennepin, Sherburne, Wright65 min
Sep 12, 9:14 PM CDTSevere Thunderstorm WarningMPXKandiyohi, McLeod, Meeker, Renville61 min
Sep 12, 9:47 PM CDTFlash Flood WarningMPXAnoka, Isanti, Sherburne3 hr
Sep 12, 9:54 PM CDTSevere Thunderstorm WarningMPXCarver, Sibley66 min
Sep 12, 10:11 PM CDTSevere Thunderstorm WarningMPXHennepin, Wright64 min
Sep 12, 10:34 PM CDTFlash Flood WarningMPXChisago3 hr
Sep 12, 10:38 PM CDTSevere Thunderstorm WarningMPXDakota, Scott52 min
Sep 12, 10:41 PM CDTSevere Thunderstorm WarningMPXAnoka, Ramsey35 min
Sep 12, 11:04 PM CDTSevere Thunderstorm WarningMPXChisago, Washington56 min
Sep 13, 12:26 AM CDTSevere Thunderstorm WarningMPXFreeborn, Steele, Waseca64 min
Sep 13, 12:44 AM CDTSevere Thunderstorm WarningMPXFaribault46 min

Nearby

Severe Thunderstorm Warnings in Minnesota, 2005Every severe thunderstorm warning in 2005

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.