Alert archive / Minnesota / Severe Thunderstorm Warnings in 2017

Severe Thunderstorm Warning 48, NWS Twin Cities, MN

June 2, 2017Waseca County, Minnesota

NWS Twin Cities, MN issued this severe thunderstorm warning at Jun 2, 2017, 6:49 PM CDT for Waseca County, Minnesota. It was in force for 26 min. 1 report 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
Jun 2, 2017, 6:49 PM CDT (23:49 UTC)
Expired
Jun 2, 2017, 7:15 PM CDT
In force
26 min
Issued by
NWS Twin Cities, MN
Area
Storm-based polygon
Hail
1.0 in
Wind
50.0 mph

County Waseca County, MN

The radar

The Minneapolis radar (KMPX), 77 km from the middle of the area, began a volume at 23:49 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

TimeReportWhereRemark
Jun 2, 6:49 PM CDTTSTM WND DMG4 S Waterville, MNTREES BLOWN OVER AND POWER POLES SNAPPED OFF. RADAR ESTIMATED TIME.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Minneapolis, MN (KMPX), launched 12:00Z, 11.8 hours before the alert went out and 77 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 12:00Z on 2017-06-02Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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 12:00Z on 2017-06-02The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 78 square meters per square second.1939Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1706 m above ground
0-6 km bulk shear
22 kt
0-1 km storm-relative helicity
78 m²/s²
0-3 km storm-relative helicity
90 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

215 
WUUS53 KMPX 022349
SVRMPX
MNC161-030015-
/O.NEW.KMPX.SV.W.0048.170602T2349Z-170603T0015Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Twin Cities/Chanhassen MN
649 PM CDT FRI JUN 2 2017

The National Weather Service in The Twin Cities has issued a

* Severe Thunderstorm Warning for...
  Northeastern Waseca County in south central Minnesota...

* Until 715 PM CDT

* At 649 PM CDT, a severe thunderstorm was located near Waseca, or 15
  miles west of Owatonna, moving northeast at 10 mph.

  HAZARD...Quarter size hail. 

  SOURCE...Radar indicated. 

  IMPACT...Damage to vehicles is expected. 

* this severe thunderstorm will remain over mainly rural areas of
  northeastern Waseca County.

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.

&&

LAT...LON 4415 9359 4420 9352 4420 9342 4417 9340
      4414 9341 4411 9355
TIME...MOT...LOC 2349Z 241DEG 10KT 4415 9353 

HAIL...1.00IN
WIND...<50MPH
 
$$
AMK
1 follow-up statement
304 
WWUS53 KMPX 030014
SVSMPX

Severe Weather Statement
National Weather Service Twin Cities/Chanhassen MN
714 PM CDT FRI JUN 2 2017

MNC161-030024-
/O.EXP.KMPX.SV.W.0048.000000T0000Z-170603T0015Z/
Waseca MN-
714 PM CDT FRI JUN 2 2017

...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN WASECA COUNTY
WILL EXPIRE AT 715 PM CDT...
        
The storm which prompted the warning has weakened below severe
limits, and has exited the warned area. Therefore, the warning will
be allowed to expire.

LAT...LON 4415 9359 4420 9352 4420 9342 4417 9340
      4414 9341 4411 9355
TIME...MOT...LOC 0014Z 241DEG 10KT 4418 9345 

$$
AMK

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 2, 4:36 PM CDTSpecial Weather StatementMPXPope24 min
Jun 2, 5:07 PM CDTSpecial Weather StatementMPXPope23 min
Jun 2, 5:15 PM CDTSpecial Weather StatementMPXMcLeod45 min
Jun 2, 5:31 PM CDTSpecial Weather StatementMPXKandiyohi29 min
Jun 2, 5:40 PM CDTSevere Thunderstorm WarningMPXKandiyohi, Stearns31 min
Jun 2, 6:14 PM CDTSpecial Weather StatementMPXMcLeod46 min
Jun 2, 6:30 PM CDTSevere Thunderstorm WarningMPXMcLeod28 min
Jun 2, 6:43 PM CDTSevere Thunderstorm WarningMPXMeeker, Renville29 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.