Alert archive / Minnesota / Severe Thunderstorm Warnings in 2020
Severe Thunderstorm Warning 138, NWS Twin Cities, MN
NWS Twin Cities, MN issued this severe thunderstorm warning at Aug 14, 2020, 7:14 PM CDT for Carver County, McLeod County, Wright County, Minnesota. It was in force for 31 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
- Aug 14, 2020, 7:14 PM CDT (00:14 UTC)
- Expired
- Aug 14, 2020, 7:45 PM CDT
- In force
- 31 min
- Issued by
- NWS Twin Cities, MN
- Area
- Storm-based polygon
- Tornado
- Possible
- Hail
- 0.88 in
- Wind
- 60.0 mph
Counties Carver County, MN, McLeod County, MN, Wright County, MN
The radar
The Minneapolis radar (KMPX), 28 km from the middle of the area, began a volume at 00:17 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 watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Aug 14, 2:36 PM CDT | Tornado Watch | SPC | 5 hr |
| Aug 14, 5:38 PM CDT | Severe Thunderstorm Watch | SPC | 5 hr |
The nearest sounding before it
Aberdeen, SD (KABR), launched 00:00Z, 0.2 hours before the alert went out and 354 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
- 1677 m above ground
- 0-6 km bulk shear
- 38 kt
- 0-1 km storm-relative helicity
- -27 m²/s²
- 0-3 km storm-relative helicity
- -31 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
443 WUUS53 KMPX 150014 SVRMPX MNC019-085-171-150045- /O.NEW.KMPX.SV.W.0138.200815T0014Z-200815T0045Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED Severe Thunderstorm Warning National Weather Service Twin Cities/Chanhassen MN 714 PM CDT Fri Aug 14 2020 The National Weather Service in the Twin Cities has issued a * Severe Thunderstorm Warning for... South central Wright County in central Minnesota... Northeastern McLeod County in central Minnesota... Northwestern Carver County in east central Minnesota... * Until 745 PM CDT. * At 714 PM CDT, a severe thunderstorm was located near Winsted, or 16 miles south of Buffalo, moving east at 45 mph. HAZARD...60 mph wind gusts and nickel size hail. SOURCE...Radar indicated. IMPACT...Expect damage to roofs, siding, and trees. * This severe thunderstorm will be near... Delano and Watertown around 725 PM CDT. Minnetrista around 735 PM CDT. Other locations impacted by this severe thunderstorm include Lake Waconia, Hollywood and New Germany. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Tornado Watch remains in effect until 800 PM CDT for central Minnesota. For your protection move to an interior room on the lowest floor of a building. && LAT...LON 4486 9376 4488 9412 4501 9411 4507 9377 TIME...MOT...LOC 0014Z 261DEG 39KT 4496 9398 TORNADO...POSSIBLE HAIL...0.88IN WIND...60MPH $$ CTG
2 follow-up statements
506
WWUS53 KMPX 150028
SVSMPX
Severe Weather Statement
National Weather Service Twin Cities/Chanhassen MN
728 PM CDT Fri Aug 14 2020
MNC085-150038-
/O.CAN.KMPX.SV.W.0138.000000T0000Z-200815T0045Z/
McLeod MN-
728 PM CDT Fri Aug 14 2020
...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN MCLEOD COUNTY IS
CANCELLED...
The severe thunderstorm which prompted the warning has moved out of
the warned area. Therefore, the warning has been cancelled.
A Tornado Watch remains in effect until 800 PM CDT for central
Minnesota.
A Severe Thunderstorm Watch remains in effect until midnight CDT for
east central Minnesota.
LAT...LON 4486 9376 4487 9400 4490 9401 4504 9394
4507 9377
TIME...MOT...LOC 0028Z 261DEG 39KT 4498 9377
$$
MNC019-171-150045-
/O.CON.KMPX.SV.W.0138.000000T0000Z-200815T0045Z/
Wright MN-Carver MN-
728 PM CDT Fri Aug 14 2020
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 745 PM CDT
FOR SOUTH CENTRAL WRIGHT AND NORTHWESTERN CARVER COUNTIES...
At 728 PM CDT, a severe thunderstorm was located near Delano, or 14
miles south of Buffalo, moving east at 45 mph.
HAZARD...60 mph wind gusts and nickel size hail.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
This severe thunderstorm will remain over mainly rural areas of south
central Wright and northwestern Carver Counties, including the
following locations... Lake Waconia, Hollywood and New Germany.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A Tornado Watch remains in effect until 800 PM CDT for central
Minnesota.
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4486 9376 4487 9400 4490 9401 4504 9394
4507 9377
TIME...MOT...LOC 0028Z 261DEG 39KT 4498 9377
TORNADO...POSSIBLE
HAIL...0.88IN
WIND...60MPH
$$
CTG106
WWUS53 KMPX 150035 RRA
SVSMPX
Severe Weather Statement
National Weather Service Twin Cities/Chanhassen MN
735 PM CDT Fri Aug 14 2020
MNC171-150045-
/O.CAN.KMPX.SV.W.0138.000000T0000Z-200815T0045Z/
Wright MN-
735 PM CDT Fri Aug 14 2020
...THE SEVERE THUNDERSTORM WARNING FOR SOUTH CENTRAL WRIGHT COUNTY IS
CANCELLED...
The severe thunderstorm which prompted the warning has moved out of
the warned area. Therefore, the warning has been cancelled.
A Tornado Watch remains in effect until 800 PM CDT for central
Minnesota.
A Severe Thunderstorm Watch remains in effect until midnight CDT for
east central Minnesota.
LAT...LON 4487 9384 4487 9388 4498 9386 4497 9377
4486 9376
TIME...MOT...LOC 0035Z 261DEG 39KT 4499 9366
$$
MNC019-150045-
/O.CON.KMPX.SV.W.0138.000000T0000Z-200815T0045Z/
Carver MN-
735 PM CDT Fri Aug 14 2020
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 745 PM CDT
FOR NORTH CENTRAL CARVER COUNTY...
At 735 PM CDT, a severe thunderstorm was located over Maple Plain, or
16 miles southeast of Buffalo, moving east at 45 mph.
HAZARD...60 mph wind gusts and nickel size hail.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
Locations impacted include...
Minnetrista, Watertown and Lake Waconia.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A Tornado Watch remains in effect until 800 PM CDT for central
Minnesota.
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4487 9384 4487 9388 4498 9386 4497 9377
4486 9376
TIME...MOT...LOC 0035Z 261DEG 39KT 4499 9366
TORNADO...POSSIBLE
HAIL...0.88IN
WIND...60MPH
$$
CTGThe office that day
Everything else NWS Twin Cities, MN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 14, 7:01 PM CDT | Severe Thunderstorm Warning | MPX | Hennepin, Wright | 29 min |
| Aug 14, 7:11 PM CDT | Severe Thunderstorm Warning | MPX | Le Sueur, Nicollet, Scott, Sibley | 34 min |
| Aug 14, 7:33 PM CDT | Severe Thunderstorm Warning | MPX | Carver, Hennepin | 27 min |
| Aug 14, 7:50 PM CDT | Severe Thunderstorm Warning | MPX | Anoka, Hennepin, Ramsey | 55 min |
| Aug 14, 7:56 PM CDT | Tornado Warning | MPX | Anoka, Hennepin | 9 min |
| Aug 14, 8:12 PM CDT | Severe Thunderstorm Warning | MPX | Dakota, Le Sueur, Rice, Scott | 33 min |
| Aug 14, 8:13 PM CDT | Severe Thunderstorm Warning | MPX | Washington | 47 min |
| Aug 14, 8:16 PM CDT | Severe Thunderstorm Warning | MPX | Dakota, Hennepin, Washington | 44 min |
| Aug 14, 8:25 PM CDT | Severe Thunderstorm Warning | MPX | Dakota, Goodhue | 50 min |
| Aug 14, 9:01 PM CDT | Severe Thunderstorm Warning | MPX | Goodhue | 44 min |
| Aug 14, 9:17 PM CDT | Special Weather Statement | MPX | Goodhue | 43 min |
Nearby
Severe Thunderstorm Warnings in Minnesota, 2020Every severe thunderstorm warning in 2020
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.