Alert archive / Minnesota / Severe Thunderstorm Warnings in 2017

Severe Thunderstorm Warning 132, NWS Twin Cities, MN

July 9, 20174 counties in Minnesota

NWS Twin Cities, MN issued this severe thunderstorm warning at Jul 9, 2017, 10:41 PM CDT for 4 counties in Minnesota. It was in force for 64 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 9, 2017, 10:41 PM CDT (03:41 UTC)
Expired
Jul 9, 2017, 11:45 PM CDT
In force
64 min
Issued by
NWS Twin Cities, MN
Area
Storm-based polygon
Hail
1.25 in
Wind
60.0 mph

Counties Faribault County, MN, Freeborn County, MN, Steele County, MN, Waseca County, MN

The radar

The Minneapolis radar (KMPX), 120 km from the middle of the area, began a volume at 03:44 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, 3.7 hours before the alert went out and 120 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°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.

027 
WUUS53 KMPX 100341
SVRMPX
MNC043-047-147-161-100445-
/O.NEW.KMPX.SV.W.0132.170710T0341Z-170710T0445Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Twin Cities/Chanhassen MN
1041 PM CDT SUN JUL 9 2017

The National Weather Service in The Twin Cities has issued a

* Severe Thunderstorm Warning for...
  Northern Freeborn County in south central Minnesota...
  Northeastern Faribault County in south central Minnesota...
  Southwestern Steele County in south central Minnesota...
  Southern Waseca County in south central Minnesota...

* Until 1145 PM CDT

* At 1040 PM CDT, severe thunderstorms were located along a line
  extending from near Steele Center to Matawan to near Minnesota
  Lake, moving south at 20 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. 

* Severe thunderstorms will be near,
  New Richland around 1045 PM CDT. 
  Ellendale, Hartland and Freeborn around 1100 PM CDT. 
  Wells and Geneva around 1110 PM CDT. 
  Clarks Grove and Alden around 1120 PM CDT. 
  Hollandale around 1125 PM CDT. 
 
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 100 AM CDT for south central
Minnesota.

LAT...LON 4360 9375 4385 9377 4393 9377 4393 9366
      4400 9324 4365 9317 4358 9353
TIME...MOT...LOC 0340Z 343DEG 19KT 4398 9326 4387 9364 4388 9380 

HAIL...1.25IN
WIND...60MPH
 
$$
2 follow-up statements
473 
WWUS53 KMPX 100414
SVSMPX

Severe Weather Statement
National Weather Service Twin Cities/Chanhassen MN
1114 PM CDT SUN JUL 9 2017

MNC147-100423-
/O.CAN.KMPX.SV.W.0132.000000T0000Z-170710T0445Z/
Steele MN-
1114 PM CDT SUN JUL 9 2017

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHWESTERN STEELE COUNTY IS
CANCELLED...

The storms which prompted the warning have moved out of the warned 
area. Therefore, the warning has been cancelled.

A tornado watch remains in effect until 100 AM CDT for south central
Minnesota.

LAT...LON 4360 9375 4393 9377 4393 9372 4385 9340
      4384 9321 4383 9320 4365 9317 4358 9353
TIME...MOT...LOC 0413Z 343DEG 19KT 4382 9319 4371 9357 4372 9373 

$$

MNC043-047-161-100445-
/O.CON.KMPX.SV.W.0132.000000T0000Z-170710T0445Z/
Freeborn MN-Faribault MN-Waseca MN-
1114 PM CDT SUN JUL 9 2017

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1145 PM CDT
FOR NORTHERN FREEBORN...NORTHEASTERN FARIBAULT AND SOUTHWESTERN
WASECA COUNTIES...

At 1113 PM CDT, severe thunderstorms were located along a line
extending from near Geneva to near Alden to Wells, moving south at 20
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. 

These severe storms will be near...
  Alden around 1120 PM CDT. 
  Hollandale around 1125 PM CDT. 
  Conger around 1130 PM CDT. 
  Hayward around 1145 PM CDT. 

Other locations impacted by these severe thunderstorms include
Walters, Manchester, Matawan and Baroda.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Torrential rainfall is occurring with these storms, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.

&&

A tornado watch remains in effect until 100 AM CDT for south central
Minnesota.

LAT...LON 4360 9375 4393 9377 4393 9372 4385 9340
      4384 9321 4383 9320 4365 9317 4358 9353
TIME...MOT...LOC 0413Z 343DEG 19KT 4382 9319 4371 9357 4372 9373 

HAIL...1.00IN
WIND...60MPH
 
$$
114 
WWUS53 KMPX 100439
SVSMPX

Severe Weather Statement
National Weather Service Twin Cities/Chanhassen MN
1139 PM CDT SUN JUL 9 2017

MNC043-047-161-100449-
/O.EXP.KMPX.SV.W.0132.000000T0000Z-170710T0445Z/
Freeborn MN-Faribault MN-Waseca MN-
1139 PM CDT SUN JUL 9 2017

...THE SEVERE THUNDERSTORM WARNING FOR NORTHERN FREEBORN...
NORTHEASTERN FARIBAULT AND SOUTHWESTERN WASECA COUNTIES WILL EXPIRE
AT 1145 PM CDT...
    
The storms which prompted the warning have moved out of the area.
Therefore the warning will be allowed to expire.  However heavy rain
is still possible with these thunderstorms.

A tornado watch remains in effect until 100 AM CDT for south central
Minnesota.

Remember, a Severe Thunderstorm Warning still remains in effect for
southern Freeborn county.

LAT...LON 4360 9375 4393 9377 4393 9372 4385 9340
      4384 9321 4383 9320 4365 9317 4358 9353
TIME...MOT...LOC 0439Z 343DEG 19KT 4370 9314 4359 9352 4360 9368 

$$

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, 10:51 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
Jul 10, 1:30 AM CDTSevere Thunderstorm WarningMPXBlue Earth, Brown, Watonwan35 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.