Alert archive / Minnesota / Severe Thunderstorm Warnings in 2017
Severe Thunderstorm Warning 172, NWS Twin Cities, MN
NWS Twin Cities, MN issued this severe thunderstorm warning at Jul 20, 2017, 12:41 AM CDT for Martin County, Watonwan County, Minnesota. It was in force for 79 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
- Jul 20, 2017, 12:41 AM CDT (05:41 UTC)
- Expired
- Jul 20, 2017, 2:00 AM CDT
- In force
- 79 min
- Issued by
- NWS Twin Cities, MN
- Area
- Storm-based polygon
- Hail
- 1.5 in
- Wind
- 60.0 mph
Counties Martin County, MN, Watonwan County, MN
The radar
The Minneapolis radar (KMPX), 147 km from the middle of the area, began a volume at 05:40 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 00:00Z, 5.7 hours before the alert went out and 146 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
- 14 J/kg
- Mixed-layer CIN
- -693 J/kg
- Mixed-layer LCL
- 1310 m above ground
- 0-6 km bulk shear
- 65 kt
- 0-1 km storm-relative helicity
- 186 m²/s²
- 0-3 km storm-relative helicity
- 251 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
124
WUUS53 KMPX 200541
SVRMPX
MNC091-165-200700-
/O.NEW.KMPX.SV.W.0172.170720T0541Z-170720T0700Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Twin Cities/Chanhassen MN
1241 AM CDT THU JUL 20 2017
The National Weather Service in The Twin Cities has issued a
* Severe Thunderstorm Warning for...
Martin County in south central Minnesota...
Southern Watonwan County in south central Minnesota...
* Until 200 AM CDT
* At 1240 AM CDT, a severe thunderstorm was located near Bergen, or
near Windom, moving southeast at 40 mph.
HAZARD...Ping pong ball size hail and 60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...People and animals outdoors will be injured. Expect hail
damage to roofs, siding, windows, and vehicles. Expect
wind damage to roofs, siding, and trees.
* This severe thunderstorm will be near,
Trimont around 105 AM CDT.
Sherburn around 110 AM CDT.
Welcome around 115 AM CDT.
Fairmont around 125 AM CDT.
Other locations impacted by this severe thunderstorm include Fairmont
Airport, East Chain, Imogene, Wilbert, Foxlake, Northrop, Ormsby,
Granada, Echols and South Branch.
This includes Interstate 90 between mile markers 82 and 111.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4359 9485 4397 9485 4386 9436 4385 9436
4384 9426 4350 9425 4350 9438
TIME...MOT...LOC 0540Z 297DEG 36KT 4384 9504
HAIL...1.50IN
WIND...60MPH
$$5 follow-up statements
643
WWUS53 KMPX 200549
SVSMPX
Severe Weather Statement
National Weather Service Twin Cities/Chanhassen MN
1249 AM CDT THU JUL 20 2017
MNC091-165-200700-
/O.CON.KMPX.SV.W.0172.000000T0000Z-170720T0700Z/
Martin MN-Watonwan MN-
1249 AM CDT THU JUL 20 2017
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 200 AM CDT
FOR MARTIN AND SOUTHERN WATONWAN COUNTIES...
At 1248 AM CDT, a severe thunderstorm was located over Bergen, or 9
miles southeast of Windom, moving southeast at 40 mph.
HAZARD...Golf ball size hail and 60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...People and animals outdoors will be injured. Expect hail
damage to roofs, siding, windows, and vehicles. Expect wind
damage to roofs, siding, and trees.
Locations impacted include...
Fairmont, Sherburn, Truman, Trimont, Welcome, Butterfield, Granada,
East Chain, South Branch, Northrop, Ormsby and Odin.
An additional thunderstorm is located ahead of this severe storm,
and will affect much of the same area. That storm could produce hail
to nickel size and wind gusts to 40 mph.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Prepare immediately for large hail and deadly cloud to ground
lightning. Seek shelter inside a well-built structure. Stay away from
windows.
Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
&&
LAT...LON 4359 9485 4397 9485 4386 9436 4385 9436
4384 9426 4350 9425 4350 9438
TIME...MOT...LOC 0548Z 297DEG 36KT 4381 9495
HAIL...1.75IN
WIND...60MPH
$$384
WWUS53 KMPX 200610
SVSMPX
Severe Weather Statement
National Weather Service Twin Cities/Chanhassen MN
110 AM CDT THU JUL 20 2017
MNC165-200619-
/O.CAN.KMPX.SV.W.0172.000000T0000Z-170720T0700Z/
Watonwan MN-
110 AM CDT THU JUL 20 2017
...THE SEVERE THUNDERSTORM WARNING FOR SOUTHERN WATONWAN 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 4359 9485 4385 9485 4385 9436 4384 9426
4350 9425 4350 9438
TIME...MOT...LOC 0609Z 296DEG 42KT 4368 9459
$$
MNC091-200700-
/O.CON.KMPX.SV.W.0172.000000T0000Z-170720T0700Z/
Martin MN-
110 AM CDT THU JUL 20 2017
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 200 AM CDT
FOR MARTIN COUNTY...
At 109 AM CDT, a severe thunderstorm was located over Welcome, or
near Fairmont, moving southeast at 50 mph.
HAZARD...60 mph wind gusts and half dollar size hail.
SOURCE...Radar indicated.
IMPACT...Hail damage to vehicles is expected. Expect wind damage to
roofs, siding, and trees.
Locations impacted include...
Fairmont, Sherburn, Truman, Trimont, Welcome, Granada, East Chain,
Northrop, Ormsby, Fairmont Airport, Imogene and Wilbert.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
&&
LAT...LON 4359 9485 4385 9485 4385 9436 4384 9426
4350 9425 4350 9438
TIME...MOT...LOC 0609Z 296DEG 42KT 4368 9459
HAIL...1.25IN
WIND...60MPH
$$818
WWUS53 KMPX 200620
SVSMPX
Severe Weather Statement
National Weather Service Twin Cities/Chanhassen MN
120 AM CDT THU JUL 20 2017
MNC091-200700-
/O.CON.KMPX.SV.W.0172.000000T0000Z-170720T0700Z/
Martin MN-
120 AM CDT THU JUL 20 2017
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 200 AM CDT
FOR MARTIN COUNTY...
At 120 AM CDT, a severe thunderstorm was located over Fairmont,
moving southeast at 45 mph.
HAZARD...60 mph wind gusts and half dollar size hail.
SOURCE...Radar indicated.
IMPACT...Hail damage to vehicles is expected. Expect wind damage to
roofs, siding, and trees.
Locations impacted include...
Fairmont, Sherburn, Truman, Trimont, Welcome, Granada, East Chain,
Northrop, Fairmont Airport, Imogene, Wilbert and Foxlake.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
&&
LAT...LON 4357 9477 4382 9474 4385 9457 4385 9436
4384 9426 4350 9425 4350 9438
TIME...MOT...LOC 0620Z 294DEG 38KT 4364 9449
HAIL...1.25IN
WIND...60MPH
$$184
WWUS53 KMPX 200629
SVSMPX
Severe Weather Statement
National Weather Service Twin Cities/Chanhassen MN
129 AM CDT THU JUL 20 2017
MNC091-200700-
/O.CON.KMPX.SV.W.0172.000000T0000Z-170720T0700Z/
Martin MN-
129 AM CDT THU JUL 20 2017
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 200 AM CDT
FOR EASTERN MARTIN COUNTY...
At 129 AM CDT, a severe thunderstorm was located near East Chain, or
near Fairmont, moving southeast at 40 mph.
HAZARD...60 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Hail damage to vehicles is expected. Expect wind damage to
roofs, siding, and trees.
Locations impacted include...
Fairmont, Welcome, Granada, East Chain, Northrop, Fairmont Airport,
Imogene and Wilbert.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
&&
LAT...LON 4356 9469 4377 9461 4379 9442 4375 9426
4350 9425 4350 9438
TIME...MOT...LOC 0629Z 297DEG 36KT 4360 9438
HAIL...1.00IN
WIND...60MPH
$$973
WWUS53 KMPX 200639
SVSMPX
Severe Weather Statement
National Weather Service Twin Cities/Chanhassen MN
139 AM CDT THU JUL 20 2017
MNC091-200700-
/O.CON.KMPX.SV.W.0172.000000T0000Z-170720T0700Z/
Martin MN-
139 AM CDT THU JUL 20 2017
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 200 AM CDT
FOR SOUTHEASTERN MARTIN COUNTY...
At 139 AM CDT, a severe thunderstorm was located over East Chain, or
12 miles southeast of Fairmont, moving southeast at 40 mph.
HAZARD...60 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Hail damage to vehicles is expected. Expect wind damage to
roofs, siding, and trees.
Locations impacted include...
Fairmont, Granada, East Chain, Fairmont Airport and Imogene.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
&&
LAT...LON 4353 9453 4371 9441 4367 9426 4350 9425
4350 9438
TIME...MOT...LOC 0639Z 297DEG 36KT 4355 9426
HAIL...1.00IN
WIND...60MPH
$$The office that day
Everything else NWS Twin Cities, MN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 19, 9:19 PM CDT | Flash Flood Watch | MPX | Carver, Dakota, Goodhue, Hennepin, Le Sueur, McLeod and 7 more | 6 hr |
| Jul 19, 9:42 PM CDT | Special Weather Statement | MPX | Dakota | 33 min |
| Jul 19, 9:46 PM CDT | Special Weather Statement | MPX | Kandiyohi | 29 min |
| Jul 19, 9:59 PM CDT | Severe Thunderstorm Warning | MPX | Kandiyohi, Meeker | 31 min |
| Jul 19, 10:20 PM CDT | Special Weather Statement | MPX | Ramsey | 25 min |
| Jul 19, 10:22 PM CDT | Special Weather Statement | MPX | Meeker | 23 min |
| Jul 20, 1:02 AM CDT | Special Weather Statement | MPX | Faribault | 58 min |
Nearby
Severe Thunderstorm Warnings in Minnesota, 2017Every severe thunderstorm warning in 2017
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.