Alert archive / Minnesota / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 12, NWS La Crosse, WI
NWS La Crosse, WI issued this severe thunderstorm warning at May 15, 2021, 5:31 PM CDT for Fillmore County, Olmsted County, Winona County, Minnesota. It was in force for 44 min. 2 reports 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, 5:31 PM CDT (22:31 UTC)
- Expired
- May 15, 2021, 6:15 PM CDT
- In force
- 44 min
- Issued by
- NWS La Crosse, WI
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 50.0 mph
Counties Fillmore County, MN, Olmsted County, MN, Winona County, MN
The radar
The La Crosse radar (KARX), 62 km from the middle of the area, began a volume at 22:32 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
| Time | Report | Where | Remark |
|---|---|---|---|
| May 15, 5:51 PM CDT | HAIL 0.5 | 1 E Chatfield, MN | |
| May 15, 6:14 PM CDT | HAIL 0.75 | 1 Nw Whalan, MN | REPORT FROM MPING: DIME (0.75 IN.). |
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 12:00Z, 10.5 hours before the alert went out and 172 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.
- Mixed-layer CAPE
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 894 m above ground
- 0-6 km bulk shear
- 28 kt
- 0-1 km storm-relative helicity
- 57 m²/s²
- 0-3 km storm-relative helicity
- 120 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
633
WUUS53 KARX 152231
SVRARX
MNC045-109-169-152315-
/O.NEW.KARX.SV.W.0012.210515T2231Z-210515T2315Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service La Crosse WI
531 PM CDT Sat May 15 2021
The National Weather Service in La Crosse has issued a
* Severe Thunderstorm Warning for...
Southwestern Winona County in southeastern Minnesota...
Southeastern Olmsted County in southeastern Minnesota...
Northeastern Fillmore County in southeastern Minnesota...
* Until 615 PM CDT.
* At 530 PM CDT, a severe thunderstorm was located near Chatfield, or
12 miles north of Preston, moving southeast at 20 mph.
HAZARD...Quarter size hail.
SOURCE...Radar indicated.
IMPACT...Damage to vehicles is expected.
* This severe thunderstorm will be near...
Lanesboro around 555 PM CDT.
Rushford around 605 PM CDT.
Other locations impacted by this severe thunderstorm include
Saratoga, Arendahl, Rushford Village, Whalan, County Roads 6 And 33,
Pilot Mound and Highway 30 And County 74.
This includes Interstate 90 in Minnesota between mile markers 232 and
237.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4397 9207 4383 9173 4380 9173 4363 9194
4387 9224
TIME...MOT...LOC 2230Z 304DEG 19KT 4386 9206
HAIL...1.00IN
WIND...<50MPH
$$
DAS3 follow-up statements
433
WWUS53 KARX 152250
SVSARX
Severe Weather Statement
National Weather Service La Crosse WI
550 PM CDT Sat May 15 2021
MNC045-109-169-152315-
/O.CON.KARX.SV.W.0012.000000T0000Z-210515T2315Z/
Winona MN-Olmsted MN-Fillmore MN-
550 PM CDT Sat May 15 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 615 PM CDT
FOR SOUTHWESTERN WINONA...SOUTHEASTERN OLMSTED AND NORTHEASTERN
FILLMORE COUNTIES...
At 549 PM CDT, a severe thunderstorm was located near Pilot Mound,
or 10 miles north of Preston, moving southeast at 20 mph.
HAZARD...Quarter size hail.
SOURCE...Radar indicated.
IMPACT...Damage to vehicles is expected.
This severe storm will be near...
Lanesboro around 600 PM CDT.
Rushford around 615 PM CDT.
Other locations impacted by this severe thunderstorm include
Saratoga, Arendahl, Rushford Village, Whalan, County Roads 6 And 33,
Pilot Mound and Highway 30 And County 74.
This includes Interstate 90 in Minnesota between mile markers 235 and
236.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4395 9203 4383 9173 4380 9173 4363 9194
4384 9220
TIME...MOT...LOC 2249Z 305DEG 17KT 4381 9198
HAIL...1.00IN
WIND...<50MPH
$$
DAS547
WWUS53 KARX 152302
SVSARX
Severe Weather Statement
National Weather Service La Crosse WI
602 PM CDT Sat May 15 2021
MNC109-169-152310-
/O.CAN.KARX.SV.W.0012.000000T0000Z-210515T2315Z/
Winona MN-Olmsted MN-
602 PM CDT Sat May 15 2021
...THE SEVERE THUNDERSTORM WARNING FOR SOUTHWESTERN WINONA AND
SOUTHEASTERN OLMSTED COUNTIES IS CANCELLED...
The severe thunderstorm which prompted the warning has moved out of
the warned area. Therefore, the warning has been cancelled.
LAT...LON 4384 9220 4385 9184 4376 9178 4363 9194
TIME...MOT...LOC 2300Z 314DEG 17KT 4377 9199
$$
MNC045-152315-
/O.CON.KARX.SV.W.0012.000000T0000Z-210515T2315Z/
Fillmore MN-
602 PM CDT Sat May 15 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 615 PM CDT
FOR NORTHEASTERN FILLMORE COUNTY...
At 600 PM CDT, a severe thunderstorm was located just north of
Lanesboro, or 8 miles north of Preston, moving southeast at 20 mph.
HAZARD...Quarter size hail.
SOURCE...Radar indicated.
IMPACT...Damage to vehicles is expected.
This severe storm will be near...
Lanesboro around 610 PM CDT.
Other locations impacted by this severe thunderstorm include
Arendahl, Whalan, Pilot Mound, Peterson, Highland, Old Barn
Campground and Rushford Village.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4384 9220 4385 9184 4376 9178 4363 9194
TIME...MOT...LOC 2300Z 314DEG 17KT 4377 9199
HAIL...1.00IN
WIND...<50MPH
$$
DAS842
WWUS53 KARX 152312
SVSARX
Severe Weather Statement
National Weather Service La Crosse WI
612 PM CDT Sat May 15 2021
MNC045-152322-
/O.EXP.KARX.SV.W.0012.000000T0000Z-210515T2315Z/
Fillmore MN-
612 PM CDT Sat May 15 2021
...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN FILLMORE COUNTY
WILL EXPIRE AT 615 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 4384 9220 4385 9184 4376 9178 4363 9194
TIME...MOT...LOC 2312Z 309DEG 22KT 4372 9192
$$
DASThe office that day
Everything else NWS La Crosse, WI issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 15, 4:17 PM CDT | Special Weather Statement | ARX | Wabasha | 28 min |
| May 15, 5:01 PM CDT | Special Weather Statement | ARX | Wabasha | 29 min |
| May 15, 5:17 PM CDT | Special Weather Statement | ARX | Fillmore | 28 min |
| May 15, 6:58 PM CDT | Severe Thunderstorm Warning | ARX | Wabasha | 47 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.