Alert archive / Minnesota / Severe Thunderstorm Warnings in 2005

Severe Thunderstorm Warning 4, NWS Twin Cities, MN

March 30, 2005Steele County, Minnesota

NWS Twin Cities, MN issued this severe thunderstorm warning at Mar 30, 2005, 12:39 PM CST for Steele County, Minnesota. It was in force for 36 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
Mar 30, 2005, 12:39 PM CST (18:39 UTC)
Expired
Mar 30, 2005, 1:15 PM CST
In force
36 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), 99 km from the middle of the area, began a volume at 18:42 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
Mar 30, 8:40 AM CSTSevere Thunderstorm WatchSPC5 hr

The nearest sounding before it

Davenport, (KDVN), launched 12:00Z, 6.7 hours before the alert went out and 344 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, Davenport, at 12:00Z on 2005-03-30Temperature 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°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Davenport, at 12:00Z on 2005-03-30The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 140 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1316 m above ground
0-6 km bulk shear
43 kt
0-1 km storm-relative helicity
140 m²/s²
0-3 km storm-relative helicity
316 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.7

Open this sounding in Storm Lab

The text

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

000 
WUUS53 KMPX 301839
SVRMPX
MNC147-301915-
/O.NEW.KMPX.SV.W.0004.050330T1839Z-050330T1915Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
1239 PM CST WED MAR 30 2005

THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A

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

* UNTIL 115 PM CST

* AT 1233 PM CST...DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM...
  CAPABLE OF PRODUCING LARGE HAIL AND DAMAGING WINDS. THIS STORM WAS
  LOCATED 15 MILES SOUTH OF OWATONNA...AND MOVING NORTH AT 25 MPH.

* LOCATIONS IMPACTED INCLUDE...
  OWATONNA.

DOPPLER RADAR HAS INDICATED SOME WEAK ROTATION WITHIN THIS STORM.
WHILE NOT IMMEDIATELY LIKELY...A TORNADO MAY STILL DEVELOP. IF A
TORNADO IS SPOTTED...ACT QUICKLY AND MOVE TO A PLACE OF SAFETY IN A
STURDY STRUCTURE...SUCH AS A BASEMENT OR SMALL INTERIOR ROOM.

LAT...LON 4385 9328 4385 9305 4420 9306 4420 9341

$$

KAT
2 follow-up statements
000 
WWUS53 KMPX 301858
SVSMPX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
1258 PM CST WED MAR 30 2005

MNC147-301915-
/O.CON.KMPX.SV.W.0004.000000T0000Z-050330T1915Z/
STEELE MN-
1258 PM CST WED MAR 30 2005

...A SEVERE THUNDERSTORM WARNING CONTINUES UNTIL 115 PM CST FOR
STEELE COUNTY...

AT 1255 PM CST...DOPPLER RADAR CONTINUED TO INDICATE A SEVERE
THUNDERSTORM...CAPABLE OF PRODUCING LARGE HAIL AND DAMAGING WINDS.
THIS STORM WAS LOCATED NEAR BIXBY...OR ABOUT 10 MILES SOUTHEAST OF
OWATONNA...MOVING NORTHEAST AT 20 MPH.

OTHER LOCATIONS IN THE WARNING INCLUDE STEELE CENTER...MOLAND...
MERTON...DEERFIELD...CLINTON FALLS AND MEDFORD.

DOPPLER RADAR HAS INDICATED SOME WEAK ROTATION WITHIN THIS STORM.
WHILE NOT IMMEDIATELY LIKELY...A TORNADO MAY STILL DEVELOP. IF A
TORNADO IS SPOTTED...ACT QUICKLY AND MOVE TO A PLACE OF SAFETY IN A
STURDY STRUCTURE...SUCH AS A BASEMENT OR SMALL INTERIOR ROOM.

LAT...LON 4385 9328 4385 9305 4420 9306 4420 9341

$$

KAT
000 
WWUS53 KMPX 301914
SVSMPX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
112 PM CST WED MAR 30 2005

MNC147-301922-
/O.EXP.KMPX.SV.W.0004.000000T0000Z-050330T1915Z/
STEELE MN-
112 PM CST WED MAR 30 2005

...THE SEVERE THUNDERSTORM WARNING FOR STEELE COUNTY WILL EXPIRE AT
115 PM CST...

PEA SIZED HAIL WAS REPORTED FROM THIS STORM NEAR BLOOMING PRAIRIE. 
SMALL HAIL IS STILL POSSIBLE FROM BIXBY TOWARD OWATONNA BETWEEN 115 
AND 145 PM. 

LAT...LON 4385 9328 4385 9305 4420 9306 4420 9341

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Mar 30, 4:50 AM CSTSevere Thunderstorm WarningMPXMartin25 min
Mar 30, 5:06 AM CSTSevere Thunderstorm WarningMPXMartin, Watonwan28 min
Mar 30, 6:46 AM CSTSevere Thunderstorm WarningMPXMcLeod, Meeker44 min
Mar 30, 1:50 PM CSTSevere Thunderstorm WarningMPXGoodhue40 min
Mar 30, 2:28 PM CSTTornado WarningMPXGoodhue32 min
Mar 30, 2:59 PM CSTTornado WarningMPXGoodhue31 min
Mar 30, 3:26 PM CSTSevere Thunderstorm WarningMPXGoodhue64 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.