Alert archive / Minnesota / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 14, NWS La Crosse, WI

May 15, 2021Wabasha County, Minnesota

NWS La Crosse, WI issued this severe thunderstorm warning at May 15, 2021, 7:23 PM CDT for Wabasha County, Minnesota. It was in force for 52 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
May 15, 2021, 7:23 PM CDT (00:23 UTC)
Expired
May 15, 2021, 8:15 PM CDT
In force
52 min
Issued by
NWS La Crosse, WI
Area
Storm-based polygon
Hail
1.0 in
Wind
50.0 mph

County Wabasha County, MN

The radar

The La Crosse radar (KARX), 97 km from the middle of the area, began a volume at 00:24 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
May 15, 8:07 PM CDTHAIL 0.25Plainview, MN

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

The nearest sounding before it

Minneapolis, MN (KMPX), launched 00:00Z, 0.4 hours before the alert went out and 126 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 2021-05-16Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 69 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 2021-05-16The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 19 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
69 J/kg
Mixed-layer CIN
-18 J/kg
Mixed-layer LCL
2040 m above ground
0-6 km bulk shear
25 kt
0-1 km storm-relative helicity
19 m²/s²
0-3 km storm-relative helicity
56 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

934 
WUUS53 KARX 160023
SVRARX
MNC157-160115-
/O.NEW.KARX.SV.W.0014.210516T0023Z-210516T0115Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service La Crosse WI
723 PM CDT Sat May 15 2021

The National Weather Service in La Crosse has issued a

* Severe Thunderstorm Warning for...
  Central Wabasha County in southeastern Minnesota...

* Until 815 PM CDT.

* At 723 PM CDT, a severe thunderstorm was located 7 miles southwest
  of Pepin, or 11 miles west of Wabasha, moving south at 25 mph.

  HAZARD...Quarter size hail.

  SOURCE...Radar indicated.

  IMPACT...Damage to vehicles is expected.

* This severe thunderstorm will be near...
  Plainview around 755 PM CDT.
  Elgin around 800 PM CDT.

Other locations impacted by this severe thunderstorm include Jarrett,
Bremen, County Roads 79 And 2, Theilman, Millville, County Roads 18
And 4 and West Albany.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

&&

LAT...LON 4444 9222 4412 9208 4411 9208 4411 9232
      4419 9232 4420 9235 4442 9242
TIME...MOT...LOC 0023Z 345DEG 24KT 4437 9227 

HAIL...1.00IN
WIND...<50MPH
 
$$

DAS
2 follow-up statements
261 
WWUS53 KARX 160042
SVSARX

Severe Weather Statement
National Weather Service La Crosse WI
742 PM CDT Sat May 15 2021

MNC157-160115-
/O.CON.KARX.SV.W.0014.000000T0000Z-210516T0115Z/
Wabasha MN-
742 PM CDT Sat May 15 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 815 PM CDT
FOR CENTRAL WABASHA COUNTY...

At 741 PM CDT, a severe thunderstorm was located near West Albany, 
or 12 miles southwest of Wabasha, moving south at 25 mph.

HAZARD...Half dollar size hail.

SOURCE...Radar indicated.

IMPACT...Damage to vehicles is expected.

This severe storm will be near...
  Plainview and Elgin around 755 PM CDT.

Other locations impacted by this severe thunderstorm include Jarrett,
Bremen, County Roads 79 And 2, Theilman, Millville, County Roads 18
And 4 and West Albany.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

&&

LAT...LON 4444 9222 4412 9208 4411 9208 4411 9232
      4419 9232 4420 9235 4442 9242
TIME...MOT...LOC 0041Z 345DEG 24KT 4425 9223 

HAIL...1.25IN
WIND...<50MPH
 
$$

DAS
148 
WWUS53 KARX 160112
SVSARX

Severe Weather Statement
National Weather Service La Crosse WI
812 PM CDT Sat May 15 2021

MNC157-160122-
/O.EXP.KARX.SV.W.0014.000000T0000Z-210516T0115Z/
Wabasha MN-
812 PM CDT Sat May 15 2021

...THE SEVERE THUNDERSTORM WARNING FOR CENTRAL WABASHA COUNTY WILL
EXPIRE AT 815 PM CDT...
                
The storm which prompted the warning has weakened below severe
limits, and no longer poses an immediate threat to life or property.
Therefore, the warning will be allowed to expire.  However small hail
is still possible with this thunderstorm.

LAT...LON 4444 9222 4412 9208 4411 9208 4411 9232
      4419 9232 4420 9235 4442 9242
TIME...MOT...LOC 0112Z 345DEG 24KT 4406 9216 

$$

DAS

The office that day

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

IssuedProductOfficeCountiesLasted
May 15, 7:59 PM CDTSevere Thunderstorm WarningARXWinona19 min
May 15, 8:23 PM CDTSpecial Weather StatementARXWinona52 min

Nearby

Severe Thunderstorm Warnings in Minnesota, 2021Every severe thunderstorm warning in 2021

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.