Alert archive / Minnesota / Severe Thunderstorm Warnings in 2017

Severe Thunderstorm Warning 142, NWS Twin Cities, MN

July 10, 2017Blue Earth County, Brown County, Watonwan County, Minnesota

NWS Twin Cities, MN issued this severe thunderstorm warning at Jul 10, 2017, 1:30 AM CDT for Blue Earth County, Brown County, Watonwan County, Minnesota. It was in force for 35 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 10, 2017, 1:30 AM CDT (06:30 UTC)
Expired
Jul 10, 2017, 2:05 AM CDT
In force
35 min
Issued by
NWS Twin Cities, MN
Area
Storm-based polygon
Hail
1.25 in
Wind
60.0 mph

Counties Blue Earth County, MN, Brown County, MN, Watonwan County, MN

The radar

The Minneapolis radar (KMPX), 101 km from the middle of the area, began a volume at 06:33 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.

IssuedProductOfficeLasted
Jul 9, 7:05 PM CDTTornado WatchSPC7 hr

The nearest sounding before it

Minneapolis, MN (KMPX), launched 00:00Z, 6.5 hours before the alert went out and 99 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.

Skew-T log-pSkew-T log-p diagram, Minneapolis, MN at 00:00Z on 2017-07-10Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 627 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Minneapolis, MN at 00:00Z on 2017-07-10The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 222 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
627 J/kg
Mixed-layer CIN
-187 J/kg
Mixed-layer LCL
1764 m above ground
0-6 km bulk shear
45 kt
0-1 km storm-relative helicity
222 m²/s²
0-3 km storm-relative helicity
278 m²/s²
Significant tornado parameter
0.0
Supercell composite
3.6

Open this sounding in Storm Lab

The text

As transmitted.

515 
WUUS53 KMPX 100630
SVRMPX
MNC013-015-165-100715-
/O.NEW.KMPX.SV.W.0142.170710T0630Z-170710T0715Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Twin Cities/Chanhassen MN
130 AM CDT MON JUL 10 2017

The National Weather Service in The Twin Cities has issued a

* Severe Thunderstorm Warning for...
  Southeastern Brown County in south central Minnesota...
  Western Blue Earth County in south central Minnesota...
  Northeastern Watonwan County in south central Minnesota...

* Until 215 AM CDT

* At 130 AM CDT, a severe thunderstorm was located near Searles, or 9
  miles south of New Ulm, moving southeast at 35 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. 

* This severe thunderstorm will be near,
  Madelia around 140 AM CDT. 
  Lake Crystal around 145 AM CDT. 
  Vernon Center around 200 AM CDT. 
  Good Thunder around 205 AM CDT. 
  Amboy around 210 AM CDT. 

Other locations impacted by this severe thunderstorm include Searles
and Garden City.

This includes U.S. Highway 169 between mile markers 26 and 46.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

&&

A tornado watch remains in effect until 200 AM CDT for south central
Minnesota.

LAT...LON 4418 9457 4431 9445 4429 9442 4427 9441
      4426 9433 4401 9392 4384 9417 4385 9423
TIME...MOT...LOC 0630Z 316DEG 31KT 4418 9440 

HAIL...1.25IN
WIND...60MPH
 
$$

BORGHOFF
3 follow-up statements
962 
WWUS53 KMPX 100644
SVSMPX

Severe Weather Statement
National Weather Service Twin Cities/Chanhassen MN
144 AM CDT MON JUL 10 2017

MNC015-100653-
/O.CAN.KMPX.SV.W.0142.000000T0000Z-170710T0715Z/
Brown MN-
144 AM CDT MON JUL 10 2017

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN BROWN 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 200 AM CDT for south central
Minnesota.

LAT...LON 4410 9448 4411 9437 4420 9424 4401 9392
      4384 9417 4385 9422 4385 9423
TIME...MOT...LOC 0643Z 326DEG 33KT 4407 9432 

$$

MNC013-165-100715-
/O.CON.KMPX.SV.W.0142.000000T0000Z-170710T0715Z/
Blue Earth MN-Watonwan MN-
144 AM CDT MON JUL 10 2017

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 215 AM CDT
FOR WESTERN BLUE EARTH AND NORTHEASTERN WATONWAN COUNTIES...

At 143 AM CDT, a severe thunderstorm was located near Madelia, or 17
miles southwest of Mankato, 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 storm will be near...
  Good Thunder and Vernon Center around 200 AM CDT. 
  Amboy around 205 AM CDT. 

Other locations impacted by this severe thunderstorm include Garden
City.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

&&

A tornado watch remains in effect until 200 AM CDT for south central
Minnesota.

LAT...LON 4410 9448 4411 9437 4420 9424 4401 9392
      4384 9417 4385 9422 4385 9423
TIME...MOT...LOC 0643Z 326DEG 33KT 4407 9432 

HAIL...1.50IN
WIND...60MPH
 
$$

BORGHOFF
435 
WWUS53 KMPX 100654
SVSMPX

Severe Weather Statement
National Weather Service Twin Cities/Chanhassen MN
154 AM CDT MON JUL 10 2017

MNC165-100704-
/O.CAN.KMPX.SV.W.0142.000000T0000Z-170710T0715Z/
Watonwan MN-
154 AM CDT MON JUL 10 2017

...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN WATONWAN 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 200 AM CDT for south central
Minnesota.

LAT...LON 4401 9436 4416 9418 4401 9392 4384 9417
      4385 9422 4385 9423
TIME...MOT...LOC 0654Z 316DEG 31KT 4400 9423 

$$

MNC013-100715-
/O.CON.KMPX.SV.W.0142.000000T0000Z-170710T0715Z/
Blue Earth MN-
154 AM CDT MON JUL 10 2017

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 215 AM CDT
FOR SOUTHWESTERN BLUE EARTH COUNTY...

At 154 AM CDT, a severe thunderstorm was located near Vernon Center,
or 16 miles southwest of Mankato, moving southeast at 35 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...
  Vernon Center around 200 AM CDT. 
  Good Thunder and Amboy around 205 AM CDT. 

Other locations impacted by this severe thunderstorm include Garden
City.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

&&

A tornado watch remains in effect until 200 AM CDT for south central
Minnesota.

LAT...LON 4401 9436 4416 9418 4401 9392 4384 9417
      4385 9422 4385 9423
TIME...MOT...LOC 0654Z 316DEG 31KT 4400 9423 

HAIL...1.00IN
WIND...60MPH
 
$$

BORGHOFF
861 
WWUS53 KMPX 100705
SVSMPX

Severe Weather Statement
National Weather Service Twin Cities/Chanhassen MN
205 AM CDT MON JUL 10 2017

MNC013-100715-
/O.CAN.KMPX.SV.W.0142.000000T0000Z-170710T0715Z/
Blue Earth MN-
205 AM CDT MON JUL 10 2017

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHWESTERN BLUE EARTH COUNTY
IS CANCELLED...
                
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 has been cancelled.

LAT...LON 4401 9436 4416 9418 4401 9392 4384 9417
      4385 9422 4385 9423
TIME...MOT...LOC 0703Z 316DEG 31KT 4393 9414 

$$

BORGHOFF

The office that day

Everything else NWS Twin Cities, MN issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jul 9, 7:35 PM CDTSevere Thunderstorm WarningMPXStevens, Swift40 min
Jul 9, 7:50 PM CDTSevere Thunderstorm WarningMPXMille Lacs, Morrison40 min
Jul 9, 7:51 PM CDTSevere Thunderstorm WarningMPXMcLeod, Meeker, Renville39 min
Jul 9, 7:57 PM CDTTornado WarningMPXStevens, Swift33 min
Jul 9, 8:09 PM CDTTornado WarningMPXSwift28 min
Jul 9, 8:21 PM CDTTornado WarningMPXChippewa, Lac qui Parle39 min
Jul 9, 8:22 PM CDTSevere Thunderstorm WarningMPXBenton, Morrison38 min
Jul 9, 8:25 PM CDTSevere Thunderstorm WarningMPXKanabec, Mille Lacs40 min
Jul 9, 8:28 PM CDTSpecial Weather StatementMPXMcLeod, Scott47 min
Jul 9, 8:33 PM CDTSevere Thunderstorm WarningMPXMcLeod, Renville, Sibley42 min
Jul 9, 8:54 PM CDTSevere Thunderstorm WarningMPXChippewa, Lac qui Parle, Yellow Medicine66 min
Jul 9, 8:55 PM CDTSevere Thunderstorm WarningMPXBenton, Sherburne25 min
Jul 9, 8:56 PM CDTSevere Thunderstorm WarningMPXDakota, Le Sueur, Rice, Scott34 min
Jul 9, 8:58 PM CDTSevere Thunderstorm WarningMPXChippewa, Swift47 min
Jul 9, 9:03 PM CDTSevere Thunderstorm WarningMPXNicollet, Sibley42 min
Jul 9, 9:06 PM CDTSevere Thunderstorm WarningMPXKandiyohi, Pope, Stearns27 min
Jul 9, 9:09 PM CDTSevere Thunderstorm WarningMPXChippewa, Lac qui Parle, Swift20 min
Jul 9, 9:11 PM CDTSevere Thunderstorm WarningMPXBlue Earth, Le Sueur, Nicollet, Waseca49 min
Jul 9, 9:16 PM CDTSevere Thunderstorm WarningMPXDakota, Hennepin, Ramsey, Washington44 min
Jul 9, 9:23 PM CDTSevere Thunderstorm WarningMPXDakota, Rice, Scott53 min
Jul 9, 9:26 PM CDTSevere Thunderstorm WarningMPXBlue Earth, Brown, Nicollet49 min
Jul 9, 9:30 PM CDTTornado WarningMPXNicollet30 min
Jul 9, 9:51 PM CDTSevere Thunderstorm WarningMPXBlue Earth, Steele, Waseca54 min
Jul 9, 10:10 PM CDTSevere Thunderstorm WarningMPXBlue Earth, Nicollet35 min
Jul 9, 10:19 PM CDTTornado WarningMPXBlue Earth41 min
Jul 9, 10:34 PM CDTSevere Thunderstorm WarningMPXNicollet, Sibley41 min
Jul 9, 10:41 PM CDTSevere Thunderstorm WarningMPXFaribault, Freeborn, Steele, Waseca64 min
Jul 9, 10:51 PM CDTSevere Thunderstorm WarningMPXMcLeod, Renville, Sibley39 min
Jul 9, 10:55 PM CDTSevere Thunderstorm WarningMPXBrown, Redwood, Renville35 min
Jul 9, 11:05 PM CDTSevere Thunderstorm WarningMPXBlue Earth40 min
Jul 9, 11:17 PM CDTSevere Thunderstorm WarningMPXFaribault, Freeborn43 min
Jul 9, 11:39 PM CDTSevere Thunderstorm WarningMPXBlue Earth, Brown, Nicollet, Watonwan37 min
Jul 9, 11:55 PM CDTSevere Thunderstorm WarningMPXRedwood18 min
Jul 10, 12:05 AM CDTSevere Thunderstorm WarningMPXBlue Earth, Faribault, Martin40 min
Jul 10, 12:45 AM CDTSevere Thunderstorm WarningMPXFaribault, Freeborn30 min
Jul 10, 12:47 AM CDTSevere Thunderstorm WarningMPXNicollet26 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.