Alert archive / Minnesota / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 75, NWS Twin Cities, MN
NWS Twin Cities, MN issued this severe thunderstorm warning at Aug 22, 2021, 7:49 PM CDT for 5 counties in Minnesota. It was in force for 26 min. 7 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
- Aug 22, 2021, 7:49 PM CDT (00:49 UTC)
- Expired
- Aug 22, 2021, 8:15 PM CDT
- In force
- 26 min
- Issued by
- NWS Twin Cities, MN
- Area
- Storm-based polygon
- Hail
- 1.25 in
- Wind
- 50.0 mph
Counties Blue Earth County, MN, Le Sueur County, MN, Nicollet County, MN, Rice County, MN, Waseca County, MN
The radar
The Minneapolis radar (KMPX), 78 km from the middle of the area, began a volume at 00:51 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 |
|---|---|---|---|
| Aug 22, 7:55 PM CDT | HAIL 1.25 | Mankato, MN | HALF DOLLAR SIZE HAIL REPORTED IN MANKATO. PICTURE REPORT RELAYED VIA SOCIAL MEDIA. |
| Aug 22, 7:58 PM CDT | HAIL 1.5 | 1 Wsw Mankato, MN | PING PONG BALL SIZE HAIL REPORTED IN MANKATO. PICTURE REPORT RELAYED VIA SOCIAL MEDIA. |
| Aug 22, 7:58 PM CDT | HAIL 1.75 | 1 Se North Mankato, MN | ROUGHLY GOLF BALL SIZED HAIL IN WESTERN PORTION OF MANKATO. PICTURE REPORT RECEIVED VIA SOCLAIL MEDIA. |
| Aug 22, 8:00 PM CDT | HAIL 1.25 | 1 Ese Mankato, MN | HALF DOLLAR SIZE HAIL REPORTED NEAR ERLANDSON PARK. PICTURE REPORT RELAYED VIA SOCIAL MEDIA. |
| Aug 22, 8:00 PM CDT | HAIL 2 | 1 Sse Mankato, MN | OBLONG-SHAPED HAILSTONE APPROXIMATELY 2 INCHES ACROSS REPORTED ALONG PARKWAY AVE. PICTURE REPORT RELAYED VIA SOCIAL MEDIA. |
| Aug 22, 8:01 PM CDT | HAIL 1 | 1 W Mankato, MN | QUARTER SIZE HAIL REPORTED FROM MANKATO POLICE DEPT. |
| Aug 22, 8:07 PM CDT | HAIL 1.75 | 1 S Mankato, MN | ROUGHLY GOLF BALL SIZED HAIL NEAR HIGHLAND PARK. PICTURE REPORT RECEIVED VIA SOCIAL MEDIA. |
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, 0.8 hours before the alert went out and 78 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
- 1692 m above ground
- 0-6 km bulk shear
- 47 kt
- 0-1 km storm-relative helicity
- 179 m²/s²
- 0-3 km storm-relative helicity
- 334 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
342 WUUS53 KMPX 230049 SVRMPX MNC013-079-103-131-161-230115- /O.NEW.KMPX.SV.W.0075.210823T0049Z-210823T0115Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED Severe Thunderstorm Warning National Weather Service Twin Cities/Chanhassen MN 749 PM CDT Sun Aug 22 2021 The National Weather Service in the Twin Cities has issued a * Severe Thunderstorm Warning for... Southern Le Sueur County in south central Minnesota... Northeastern Blue Earth County in south central Minnesota... Southwestern Rice County in south central Minnesota... Northwestern Waseca County in south central Minnesota... Southeastern Nicollet County in south central Minnesota... * Until 815 PM CDT. * At 749 PM CDT, a severe thunderstorm was located over Mankato, moving northeast at 45 mph. HAZARD...Half dollar size hail. SOURCE...Radar indicated. IMPACT...Damage to vehicles is expected. * This severe thunderstorm will be near... Eagle Lake around 755 PM CDT. Madison Lake around 800 PM CDT. Cleveland around 805 PM CDT. Other locations in the path of this severe thunderstorm include Elysian and Waterville. PRECAUTIONARY/PREPAREDNESS ACTIONS... For your protection move to an interior room on the lowest floor of a building. && LAT...LON 4405 9405 4414 9419 4444 9365 4422 9344 TIME...MOT...LOC 0049Z 243DEG 45KT 4414 9401 HAIL THREAT...RADAR INDICATED MAX HAIL SIZE...1.25 IN WIND THREAT...RADAR INDICATED MAX WIND GUST...<50 MPH $$ BPH
1 follow-up statement
311
WWUS53 KMPX 230102
SVSMPX
Severe Weather Statement
National Weather Service Twin Cities/Chanhassen MN
802 PM CDT Sun Aug 22 2021
MNC103-230110-
/O.CAN.KMPX.SV.W.0075.000000T0000Z-210823T0115Z/
Nicollet MN-
802 PM CDT Sun Aug 22 2021
...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN NICOLLET COUNTY
IS CANCELLED...
The severe thunderstorm which prompted the warning has moved out of
the warned area. Therefore, the warning has been cancelled.
LAT...LON 4417 9403 4417 9401 4418 9402 4419 9401
4420 9403 4424 9402 4444 9365 4422 9344
4409 9393
TIME...MOT...LOC 0100Z 243DEG 45KT 4421 9383
$$
MNC013-079-131-161-230115-
/O.CON.KMPX.SV.W.0075.000000T0000Z-210823T0115Z/
Le Sueur MN-Blue Earth MN-Rice MN-Waseca MN-
802 PM CDT Sun Aug 22 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 815 PM CDT
FOR SOUTHERN LE SUEUR...NORTHEASTERN BLUE EARTH...SOUTHWESTERN RICE
AND NORTHWESTERN WASECA COUNTIES...
At 800 PM CDT, a severe thunderstorm was located over Madison Lake,
or 8 miles east of Mankato, moving northeast at 45 mph. Law
enforcement reported quarter inch hail in downtown Mankato at
7:58 PM.
HAZARD...Half dollar size hail.
SOURCE...Law enforcement.
IMPACT...Damage to vehicles is expected.
Locations impacted include...
Elysian, Waterville and Morristown.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4417 9403 4417 9401 4418 9402 4419 9401
4420 9403 4424 9402 4444 9365 4422 9344
4409 9393
TIME...MOT...LOC 0100Z 243DEG 45KT 4421 9383
HAIL THREAT...OBSERVED
MAX HAIL SIZE...1.25 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...<50 MPH
$$
BPHThe office that day
Everything else NWS Twin Cities, MN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 22, 8:14 PM CDT | Special Weather Statement | MPX | Rice | 31 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.