Alert archive / Minnesota / Severe Thunderstorm Warnings in 2017
Severe Thunderstorm Warning 163, NWS Twin Cities, MN
NWS Twin Cities, MN issued this severe thunderstorm warning at Jul 19, 2017, 2:38 PM CDT for Brown County, Watonwan County, Minnesota. It was in force for 52 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
- Jul 19, 2017, 2:38 PM CDT (19:38 UTC)
- Expired
- Jul 19, 2017, 3:30 PM CDT
- In force
- 52 min
- Issued by
- NWS Twin Cities, MN
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
Counties Brown County, MN, Watonwan County, MN
The radar
The Minneapolis radar (KMPX), 134 km from the middle of the area, began a volume at 19:41 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 |
|---|---|---|---|
| Jul 19, 2:48 PM CDT | TSTM WND DMG | 6 W Comfrey, MN | CORN FIELDS FLATTENED. SEVERAL TREES DOWN. ONE TREE UPROOTED. ONE TREE SNAPPED OFF. |
| Jul 19, 2:48 PM CDT | TSTM WND DMG | Comfrey, MN | TREES DOWN. |
| Jul 19, 2:50 PM CDT | TSTM WND DMG | 6 Ssw Springfield, MN | NUMEROUS TREES UPROOTED/SNAPPED OFF. DAMAGE TO CORN FIELDS NEARBY AS WELL. TIME ESTIMATED. |
| Jul 19, 3:00 PM CDT | TSTM WND DMG | 4 Nw Sveadahl, MN | EMPTY SEMI TRAILER TIPPED OVER. REPORTED AT COUNTY ROAD 8 AND COUNTY ROAD 18, COMFREY, MN. |
| Jul 19, 3:10 PM CDT | TSTM WND DMG | 1 Nnw St. James, MN | LARGE TREE BLOWN DOWN. |
| Jul 19, 3:15 PM CDT | TSTM WND GST 62 | 3 Ne Madelia, MN | MESONET STATION MN045, MADELIA 3ENE. |
| Jul 19, 3:25 PM CDT | TSTM WND GST 51 | 6 Nnw Sveadahl, MN | 1.40 INCHES RAINFALL IN 55 MINUTES. 4 INCH DIAMETER TREE BRANCHES DOWN. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Jul 19, 12:36 PM CDT | Severe Thunderstorm Watch | SPC | 5 hr |
The nearest sounding before it
Minneapolis, MN (KMPX), launched 12:00Z, 7.6 hours before the alert went out and 132 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
- 1964 m above ground
- 0-6 km bulk shear
- 44 kt
- 0-1 km storm-relative helicity
- -10 m²/s²
- 0-3 km storm-relative helicity
- 91 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
887
WUUS53 KMPX 191938
SVRMPX
MNC015-165-192030-
/O.NEW.KMPX.SV.W.0163.170719T1938Z-170719T2030Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Twin Cities/Chanhassen MN
238 PM CDT WED JUL 19 2017
The National Weather Service in The Twin Cities has issued a
* Severe Thunderstorm Warning for...
Southwestern Brown County in south central Minnesota...
Watonwan County in south central Minnesota...
* Until 330 PM CDT
* At 238 PM CDT, a severe thunderstorm was located near Comfrey, or
18 miles north of Windom, moving east at 55 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.
* This severe thunderstorm will be near,
St. James around 300 PM CDT.
Madelia around 310 PM CDT.
Lewisville around 315 PM CDT.
Other locations impacted by this severe thunderstorm include
Sveadahl, Grogan, St James Airport, Darfur, La Salle, Echols, South
Branch and Odin.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4385 9485 4411 9486 4411 9509 4423 9511
4411 9437 4385 9436
TIME...MOT...LOC 1938Z 286DEG 49KT 4413 9502
HAIL...1.00IN
WIND...60MPH
$$3 follow-up statements
497
WWUS53 KMPX 192005
SVSMPX
Severe Weather Statement
National Weather Service Twin Cities/Chanhassen MN
305 PM CDT WED JUL 19 2017
MNC015-165-192030-
/O.CON.KMPX.SV.W.0163.000000T0000Z-170719T2030Z/
Brown MN-Watonwan MN-
305 PM CDT WED JUL 19 2017
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 330 PM CDT
FOR SOUTH CENTRAL BROWN AND WATONWAN COUNTIES...
At 305 PM CDT, a severe thunderstorm was located over Grogan, or 19
miles south of New Ulm, moving east at 55 mph.
HAZARD...60 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Hail damage to vehicles is expected. Expect wind damage to
roofs, siding, and trees.
This severe storm will be near...
Madelia and Lewisville around 310 PM CDT.
Other locations impacted by this severe thunderstorm include
Sveadahl, Grogan, St James Airport, Darfur, La Salle, Echols, South
Branch and Odin.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4411 9496 4419 9487 4411 9437 4385 9436
4385 9485 4411 9486
TIME...MOT...LOC 2005Z 286DEG 49KT 4403 9452
HAIL...1.00IN
WIND...60MPH
$$773 WWUS53 KMPX 192013 SVSMPX Severe Weather Statement National Weather Service Twin Cities/Chanhassen MN 313 PM CDT WED JUL 19 2017 MNC015-165-192030- /O.CON.KMPX.SV.W.0163.000000T0000Z-170719T2030Z/ Brown MN-Watonwan MN- 313 PM CDT WED JUL 19 2017 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 330 PM CDT FOR SOUTHERN BROWN AND EASTERN WATONWAN COUNTIES... At 313 PM CDT, a severe thunderstorm was located near Madelia, or 21 miles south of New Ulm, moving east at 55 mph. HAZARD...60 mph wind gusts and penny size hail. SOURCE...Radar indicated. IMPACT...Expect damage to roofs, siding, and trees. this severe thunderstorm will remain over mainly rural areas of southern Brown and eastern Watonwan Counties, including the following locations: St James Airport, Grogan, La Salle, Echols and South Branch. PRECAUTIONARY/PREPAREDNESS ACTIONS... For your protection move to an interior room on the lowest floor of a building. && LAT...LON 4411 9437 4385 9436 4385 9472 4415 9459 TIME...MOT...LOC 2013Z 286DEG 49KT 4400 9437 HAIL...0.75IN WIND...60MPH $$
736
WWUS53 KMPX 192027
SVSMPX
Severe Weather Statement
National Weather Service Twin Cities/Chanhassen MN
327 PM CDT WED JUL 19 2017
MNC015-165-192037-
/O.EXP.KMPX.SV.W.0163.000000T0000Z-170719T2030Z/
Brown MN-Watonwan MN-
327 PM CDT WED JUL 19 2017
...THE SEVERE THUNDERSTORM WARNING FOR SOUTHERN BROWN AND EASTERN
WATONWAN COUNTIES WILL EXPIRE AT 330 PM CDT...
The storm which prompted the warning has moved out of the area.
Therefore the warning will be allowed to expire.
A severe thunderstorm watch remains in effect until 600 PM CDT for
south central Minnesota.
LAT...LON 4411 9437 4385 9436 4385 9472 4415 9459
TIME...MOT...LOC 2027Z 286DEG 49KT 4395 9413
$$The office that day
Everything else NWS Twin Cities, MN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 19, 2:06 PM CDT | Severe Thunderstorm Warning | MPX | Redwood | 39 min |
| Jul 19, 2:51 PM CDT | Tornado Warning | MPX | Brown | 24 min |
| Jul 19, 3:11 PM CDT | Severe Thunderstorm Warning | MPX | Blue Earth, Brown, Nicollet, Watonwan | 34 min |
| Jul 19, 3:38 PM CDT | Severe Thunderstorm Warning | MPX | Blue Earth, Le Sueur, Rice, Waseca | 37 min |
| Jul 19, 3:50 PM CDT | Severe Thunderstorm Warning | MPX | Faribault, Martin | 40 min |
| Jul 19, 3:57 PM CDT | Severe Thunderstorm Warning | MPX | Faribault, Freeborn | 18 min |
| Jul 19, 4:02 PM CDT | Severe Thunderstorm Warning | MPX | Dakota, Goodhue | 43 min |
| Jul 19, 4:06 PM CDT | Severe Thunderstorm Warning | MPX | Faribault, Freeborn, Steele, Waseca | 39 min |
| Jul 19, 4:40 PM CDT | Severe Thunderstorm Warning | MPX | Freeborn | 20 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.