Alert archive / Minnesota / Severe Thunderstorm Warnings in 2005

Severe Thunderstorm Warning 290, NWS Twin Cities, MN

August 9, 2005Steele County, Minnesota

NWS Twin Cities, MN issued this severe thunderstorm warning at Aug 9, 2005, 4:02 PM CDT for Steele County, Minnesota. It was in force for 46 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
Aug 9, 2005, 4:02 PM CDT (21:02 UTC)
Expired
Aug 9, 2005, 4:48 PM CDT
In force
46 min
Issued by
NWS Twin Cities, MN
Area
Counties, with a storm outline in the text

County Steele County, MN

The radar

The Minneapolis radar (KMPX), 92 km from the middle of the area, began a volume at 21:05 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
Aug 9, 2:20 PM CDTSevere Thunderstorm WatchSPC7 hr

The nearest sounding before it

Minneapolis, MN (KMPX), launched 12:00Z, 9.0 hours before the alert went out and 93 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°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 092103
SVRMPX
MNC147-092145-
/O.NEW.KMPX.SV.W.0290.050809T2102Z-050809T2145Z/

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

THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A

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

* UNTIL 445 PM CDT

* AT 401 PM CDT...DOPPLER RADAR INDICATED A LINE OF SEVERE
  THUNDERSTORMS...CAPABLE OF PRODUCING LARGE HAIL AND DAMAGING WINDS.
  THESE STORMS WERE LOCATED ALONG A LINE EXTENDING FROM OWATONNA TO  
  ELLENDALE...AND MOVING EAST AT 25 MPH.

* LOCATIONS IMPACTED INCLUDE...
  OWATONNA...
  ELLENDALE...
  HOPE...
  PRATT...
 
STAY INDOORS...AND AWAY FROM WINDOWS.

LAT...LON 4417 9338 4388 9339 4386 9306 4419 9308

$$

MKM
1 follow-up statement
000 
WWUS53 KMPX 092148
SVSMPX

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

MNC147-092158-
/O.EXP.KMPX.SV.W.0290.000000T0000Z-050809T2145Z/
STEELE MN-
447 PM CDT TUE AUG 9 2005

...THE SEVERE THUNDERSTORM WARNING FOR STEELE COUNTY EXPIRED AT 445 
PM CDT...

STORMS AROUND MUCH OF STEELE COUNTY HAVE WEAKENED. HEAVY RAIN AND 
LIGHTNING WERE STILL OCCURRING...BUT HAIL AND STRONG WIND NO LONGER 
APPEARED TO BE A THREAT.  THEREFORE THE WARNING WAS ALLOWED TO 
EXPIRE.

THERE WAS ANOTHER STORM SOUTH OF WASECA.  IT WAS MOVING EAST. IF IT 
REMAINS INTENSE...A WARNING MAY BE NECESSARY AGAIN FOR STEELE 
COUNTY... SO STAY TUNED.
 
LAT...LON 4417 9338 4388 9339 4386 9306 4419 9308

$$
TDK

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, 3:11 PM CDTSevere Thunderstorm WarningMPXBlue Earth, Le Sueur, Nicollet73 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, 4:08 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.