Alert archive / Minnesota / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 124, NWS La Crosse, WI

October 25, 2012Fillmore County, Minnesota

NWS La Crosse, WI issued this severe thunderstorm warning at Oct 25, 2012, 1:58 AM CDT for Fillmore County, Minnesota. It was in force for 18 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
Oct 25, 2012, 1:58 AM CDT (06:58 UTC)
Expired
Oct 25, 2012, 2:16 AM CDT
In force
18 min
Issued by
NWS La Crosse, WI
Area
Storm-based polygon
Hail
1.0 in
Wind
50.0 mph

County Fillmore County, MN

The radar

The La Crosse radar (KARX), 66 km from the middle of the area, began a volume at 07:01 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 nearest sounding before it

Minneapolis, MN (KMPX), launched 00:00Z, 7.0 hours before the alert went out and 187 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 2012-10-25Temperature 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, Minneapolis, MN at 00:00Z on 2012-10-25The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 76 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
521 m above ground
0-6 km bulk shear
57 kt
0-1 km storm-relative helicity
76 m²/s²
0-3 km storm-relative helicity
353 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.4

Open this sounding in Storm Lab

The text

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

419 
WUUS53 KARX 250658
SVRARX
MNC045-250730-
/O.NEW.KARX.SV.W.0124.121025T0658Z-121025T0730Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE LA CROSSE WI
158 AM CDT THU OCT 25 2012

THE NATIONAL WEATHER SERVICE IN LA CROSSE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  EASTERN FILLMORE COUNTY IN SOUTHEAST MINNESOTA...

* UNTIL 230 AM CDT

* AT 157 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM LOCATED NEAR AMHERST...OR 10 MILES SOUTHEAST OF
  PRESTON...MOVING NORTHEAST AT 55 MPH. THIS STORM CAN PRODUCE
  QUARTER SIZE HAIL.  

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  CHOICE AND PETERSON AROUND 205 AM...
  RUSHFORD AND BRATSBERG AROUND 210 AM...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

IF YOU ARE IN THE PATH OF THIS STORM...PREPARE IMMEDIATELY FOR LARGE
HAIL. SEEK SHELTER NOW INSIDE A STURDY STRUCTURE AND STAY AWAY FROM
WINDOWS.

&&

LAT...LON 4367 9218 4385 9173 4350 9173 4351 9207
TIME...MOT...LOC 0658Z 241DEG 46KT 4361 9188
WIND...HAIL <50MPH 1.00IN

$$

RABERDING
2 follow-up statements
874 
WWUS53 KARX 250707
SVSARX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE LA CROSSE WI
207 AM CDT THU OCT 25 2012

MNC045-250730-
/O.CON.KARX.SV.W.0124.000000T0000Z-121025T0730Z/
FILLMORE MN-
207 AM CDT THU OCT 25 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR EASTERN
FILLMORE COUNTY UNTIL 230 AM CDT...

AT 205 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM LOCATED NEAR TAWNEY...OR 13 MILES EAST OF
PRESTON...MOVING NORTHEAST AT 55 MPH. THIS STORM CAN PRODUCE QUARTER
SIZE HAIL.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

IF YOU ARE IN THE PATH OF THIS STORM...PREPARE IMMEDIATELY FOR LARGE
HAIL. SEEK SHELTER NOW INSIDE A STURDY STRUCTURE AND STAY AWAY FROM
WINDOWS.

&&

LAT...LON 4385 9174 4383 9173 4350 9173 4351 9207
      4371 9208
TIME...MOT...LOC 0707Z 241DEG 46KT 4366 9174
WIND...HAIL <50MPH 1.00IN

$$

RABERDING
648 
WWUS53 KARX 250716
SVSARX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE LA CROSSE WI
216 AM CDT THU OCT 25 2012

MNC045-250727-
/O.CAN.KARX.SV.W.0124.000000T0000Z-121025T0730Z/
FILLMORE MN-
216 AM CDT THU OCT 25 2012

...THE SEVERE THUNDERSTORM WARNING FOR EASTERN FILLMORE COUNTY IS
CANCELLED...

THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED AND MOVED OUT OF
THE WARNED AREA.

LAT...LON 4385 9174 4383 9173 4350 9173 4351 9207
      4371 9208
TIME...MOT...LOC 0717Z 241DEG 46KT 4372 9158

$$

RABERDING

The office that day

Everything else NWS La Crosse, WI issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Oct 25, 12:46 AM CDTSevere Thunderstorm WarningARXOlmsted, Winona21 min

Nearby

Severe Thunderstorm Warnings in Minnesota, 2012Every severe thunderstorm warning in 2012

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.