Alert archive / Minnesota / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 6, NWS La Crosse, WI

May 2, 2021Fillmore County, Minnesota

NWS La Crosse, WI issued this severe thunderstorm warning at May 2, 2021, 5:16 PM CDT for Fillmore County, Minnesota. It was in force for 29 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: May 2, 2021, 5:16 PM CDT (22:16 UTC)
Expired: May 2, 2021, 5:45 PM CDT
In force: 29 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), 70 km from the middle of the area, began a volume at 22:19 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 12:00Z, 10.3 hours before the alert went out and 171 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 3075 m above ground
0-6 km bulk shear: 38 kt
0-1 km storm-relative helicity: -80 m²/s²
0-3 km storm-relative helicity: -13 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

497 
WUUS53 KARX 022216
SVRARX
MNC045-022245-
/O.NEW.KARX.SV.W.0006.210502T2216Z-210502T2245Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service La Crosse WI
516 PM CDT Sun May 2 2021

The National Weather Service in La Crosse has issued a

* Severe Thunderstorm Warning for...
  Northeastern Fillmore County in southeastern Minnesota...

* Until 545 PM CDT.

* At 516 PM CDT, a severe thunderstorm was located over Fountain, or
  near Preston, moving northeast at 25 mph.

  HAZARD...Quarter size hail.

  SOURCE...Radar indicated.

  IMPACT...Damage to vehicles is expected.

* This severe thunderstorm will be near...
  Lanesboro around 525 PM CDT.

Other locations impacted by this severe thunderstorm include
Arendahl, Whalan, Pilot Mound, Old Barn Campground, Isinours,
Peterson and Rushford Village.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4385 9216 4384 9175 4368 9200 4368 9221
TIME...MOT...LOC 2216Z 219DEG 21KT 4374 9210 

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

Rieck

1 follow-up statement

829 
WWUS53 KARX 022223
SVSARX

Severe Weather Statement
National Weather Service La Crosse WI
523 PM CDT Sun May 2 2021

MNC045-022245-
/O.CON.KARX.SV.W.0006.000000T0000Z-210502T2245Z/
Fillmore MN-
523 PM CDT Sun May 2 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 545 PM CDT
FOR NORTHEASTERN FILLMORE COUNTY...

At 523 PM CDT, a severe thunderstorm was located near Fountain, or 7
miles north of Preston, moving northeast at 25 mph.

HAZARD...Quarter size hail.

SOURCE...Radar indicated.

IMPACT...Damage to vehicles is expected.

This severe thunderstorm will remain over mainly rural areas of
northeastern Fillmore County, including the following locations...
Arendahl, Whalan, Pilot Mound, Old Barn Campground, Isinours,
Peterson and Rushford Village.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4385 9216 4384 9175 4368 9200 4371 9215
TIME...MOT...LOC 2223Z 219DEG 21KT 4377 9206 

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

Rieck

The office that day

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

Issued	Product	Office	Counties	Lasted
May 2, 4:56 PM CDT	Severe Thunderstorm Warning	ARX	Winona	34 min
May 2, 5:10 PM CDT	Severe Thunderstorm Warning	ARX	Olmsted, Winona	50 min
May 2, 5:44 PM CDT	Severe Thunderstorm Warning	ARX	Winona	40 min

Nearby

Severe Thunderstorm Warnings in Minnesota, 2021 Every 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.