Alert archive / Minnesota / Severe Thunderstorm Warnings in 2005

Severe Thunderstorm Warning 280, NWS Twin Cities, MN

August 9, 2005Blue Earth County, Le Sueur County, Nicollet County, Minnesota

NWS Twin Cities, MN issued this severe thunderstorm warning at Aug 9, 2005, 3:11 PM CDT for Blue Earth County, Le Sueur County, Nicollet County, Minnesota. It was in force for 73 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
Aug 9, 2005, 3:11 PM CDT (20:11 UTC)
Expired
Aug 9, 2005, 4:24 PM CDT
In force
73 min
Issued by
NWS Twin Cities, MN
Area
Counties, with a storm outline in the text

Counties Blue Earth County, MN, Le Sueur County, MN, Nicollet County, MN

The radar

The Minneapolis radar (KMPX), 75 km from the middle of the area, began a volume at 20:13 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
Aug 9, 3:35 PM CDTTSTM WND DMGNorth Mankato, MNSIX INCH BRANCHES DOWN.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The watch it was issued in

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

IssuedProductOfficeLasted
Aug 9, 2:20 PM CDTSevere Thunderstorm WatchSPC7 hr

The nearest sounding before it

Minneapolis, MN (KMPX), launched 12:00Z, 8.2 hours before the alert went out and 74 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 2005-08-09Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2206 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 2005-08-09The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 22 square meters per square second.193958Sfc1 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
2206 J/kg
Mixed-layer CIN
-140 J/kg
Mixed-layer LCL
1490 m above ground
0-6 km bulk shear
24 kt
0-1 km storm-relative helicity
22 m²/s²
0-3 km storm-relative helicity
-12 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 092013 RRA
SVRMPX
MNC013-079-103-092115-
/O.NEW.KMPX.SV.W.0280.050809T2011Z-050809T2115Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
311 PM CDT TUE AUG 9 2005

THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTHERN LE SUEUR COUNTY IN SOUTH CENTRAL MINNESOTA
  NICOLLET COUNTY IN SOUTH CENTRAL MINNESOTA
  NORTHERN BLUE EARTH COUNTY IN SOUTH CENTRAL MINNESOTA

* UNTIL 415 PM CDT

* AT 309 PM CDT...DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM...
  CAPABLE OF PRODUCING LARGE HAIL AND DAMAGING WINDS. THIS STORM WAS
  LOCATED 11 MILES NORTHWEST OF MANKATO...AND MOVING EAST AT 30 MPH.

* LOCATIONS IMPACTED INCLUDE...
  MANKATO...
  ST PETER...
  GOOD THUNDER...
  KASOTA...

RADAR WAS ALSO INDICATING SOME ROTATION WITH THIS STORM. IF THIS 
INCREASES...A TORNADO WARNING WILL BE ISSUED. 

LAT...LON 4433 9429 4419 9419 4412 9377 4420 9378
      4430 9353

$$

JPR
2 follow-up statements
000 
WWUS53 KMPX 092051
SVSMPX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
350 PM CDT TUE AUG 9 2005

MNC103-092105-
/O.CAN.KMPX.SV.W.0280.000000T0000Z-050809T2115Z/
NICOLLET MN-
350 PM CDT TUE AUG 9 2005

...THE SEVERE THUNDERSTORM WARNING FOR NICOLLET COUNTY IS
CANCELLED...

THE SEVERE THUNDERSTORM HAS MOVED OUT OF THE COUNTY.

LAT...LON 4424 9398 4415 9410 4412 9377 4420 9378
      4422 9358 4430 9353

$$

MNC013-079-092115-
/O.CON.KMPX.SV.W.0280.000000T0000Z-050809T2115Z/
LE SUEUR MN-BLUE EARTH MN-
350 PM CDT TUE AUG 9 2005

...A SEVERE THUNDERSTORM WARNING CONTINUES UNTIL 415 PM CDT FOR BLUE
EARTH AND LE SUEUR COUNTIES...

AT 343 PM CDT...DOPPLER RADAR CONTINUED TO INDICATE A LINE OF
SEVERE THUNDERSTORMS...CAPABLE OF PRODUCING LARGE HAIL AND DAMAGING 
WINDS. THE STORMS EXTENDED FROM MONTGOMERY TO EAGLE LAKE...AND 
ANOTHER STORM WAS ABOUT 15 MILES WEST OF MANKATO. THE STORMS WERE 
MOVING EAST AT 30 MPH.

A TORNADO WARNING ALSO REMAINS IN EFFECT FOR NORTHERN BLUE EARTH 
COUNTY UNTIL 400 PM. LAW ENFORCEMENT CONTINUES TO WITNESS STRONG 
ROTATION NEAR EAGLE LAKE.

LAT...LON 4424 9398 4415 9410 4412 9377 4420 9378
      4422 9358 4430 9353

$$
JPR
000 
WWUS53 KMPX 092124
SVSMPX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
420 PM CDT TUE AUG 9 2005

MNC013-079-092135-
/O.EXP.KMPX.SV.W.0280.000000T0000Z-050809T2115Z/
LE SUEUR MN-BLUE EARTH MN-
420 PM CDT TUE AUG 9 2005

...THE SEVERE THUNDERSTORM WARNING FOR BLUE EARTH AND LE SUEUR 
COUNTIES EXPIRED AT 415 PM CDT...

AT 420 PM...SCATTERED STORMS EXTENDED FROM ABOUT 15 MILES NORTHEAST 
OF MANKATO...TO 20 MILES SOUTHWEST OF MANKATO.  ANOTHER STORM WAS 
ABOUT 25 MILES SOUTHEAST OF MANKATO...JUST NORTH OF MINNESOTA LAKE.
SMALL HAIL...GUSTY WINDS...FREQUENT LIGHTNING AND HEAVY RAIN ARE 
STILL POSSIBLE AS THE STORMS MOVE EAST AT 25 MPH.

ONE STORM JUST WEST OF VERNON CENTER AND GOOD THUNDER MAY BE 
INTENSIFYING. STAY TUNED IN CASE ANOTHER SEVERE THUNDERSTORM WARNING 
BECOMES NECESSARY.

LAT...LON 4424 9398 4415 9410 4412 9377 4420 9378
      4422 9358 4430 9353

$$

KAT

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 9, 1:13 AM CDTSevere Thunderstorm WarningMPXDouglas39 min
Aug 9, 3:31 AM CDTSevere Thunderstorm WarningMPXDouglas41 min
Aug 9, 3:48 AM CDTSevere Thunderstorm WarningMPXTodd57 min
Aug 9, 4:15 AM CDTSevere Thunderstorm WarningMPXMorrison60 min
Aug 9, 5:11 AM CDTSevere Thunderstorm WarningMPXKanabec, Mille Lacs44 min
Aug 9, 2:11 PM CDTSevere Thunderstorm WarningMPXAnoka, Hennepin49 min
Aug 9, 2:33 PM CDTSevere Thunderstorm WarningMPXSibley42 min
Aug 9, 2:37 PM CDTSevere Thunderstorm WarningMPXBrown, Redwood38 min
Aug 9, 2:43 PM CDTSevere Thunderstorm WarningMPXCarver, Scott47 min
Aug 9, 3:11 PM CDTSevere Thunderstorm WarningMPXDakota, Hennepin64 min
Aug 9, 3:15 PM CDTSevere Thunderstorm WarningMPXScott45 min
Aug 9, 3:25 PM CDTSevere Thunderstorm WarningMPXRice65 min
Aug 9, 3:25 PM CDTTornado WarningMPXBlue Earth, Nicollet34 min
Aug 9, 3:30 PM CDTSevere Thunderstorm WarningMPXBrown32 min
Aug 9, 3:31 PM CDTSevere Thunderstorm WarningMPXWashington59 min
Aug 9, 3:44 PM CDTSevere Thunderstorm WarningMPXWaseca61 min
Aug 9, 3:52 PM CDTSevere Thunderstorm WarningMPXMartin39 min
Aug 9, 3:55 PM CDTSevere Thunderstorm WarningMPXGoodhue65 min
Aug 9, 4:02 PM CDTSevere Thunderstorm WarningMPXSteele46 min
Aug 9, 4:08 PM CDTSevere Thunderstorm WarningMPXFaribault70 min
Aug 9, 4:42 PM CDTSevere Thunderstorm WarningMPXWaseca25 min
Aug 9, 5:09 PM CDTSevere Thunderstorm WarningMPXFreeborn50 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.