Alert archive / Minnesota / Severe Thunderstorm Warnings in 2017

Severe Thunderstorm Warning 58, NWS Twin Cities, MN

June 11, 2017Carver County, Hennepin County, Wright County, Minnesota

NWS Twin Cities, MN issued this severe thunderstorm warning at Jun 11, 2017, 7:50 AM CDT for Carver County, Hennepin County, Wright County, Minnesota. It was in force for 55 min. 16 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
Jun 11, 2017, 7:50 AM CDT (12:50 UTC)
Expired
Jun 11, 2017, 8:45 AM CDT
In force
55 min
Issued by
NWS Twin Cities, MN
Area
Storm-based polygon
Hail
1.75 in
Wind
60.0 mph

Counties Carver County, MN, Hennepin County, MN, Wright County, MN

The radar

The Minneapolis radar (KMPX), 22 km from the middle of the area, began a volume at 12:51 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 11, 8:10 AM CDTTSTM WND GST 572 Wsw Waconia, MNCORRECTION TO LOWER WIND SPEED. WACONIA MIDDLE SCHOOL. TIME ESTIMATED.
Jun 11, 8:10 AM CDTTSTM WND GST 612 Wsw Waconia, MNWACONIA MIDDLE SCHOOL. TIME ESTIMATED.
Jun 11, 8:15 AM CDTTSTM WND GST 582 Nnw New Germany, MNCORRECTED TO TSTM WND GST. MESONET STATION MN022, NEW GERMANY 1NW.
Jun 11, 8:15 AM CDTNON-TSTM WND GST 582 Nnw New Germany, MNMESONET STATION MN022, NEW GERMANY 1NW.
Jun 11, 8:18 AM CDTTSTM WND DMG3 Ene Maple Lake, MNSEVERAL TREES DOWN ALONG COUNTY ROAD 37 NORTHEAST OF MAPLE LAKE.
Jun 11, 8:20 AM CDTTSTM WND GST 692 Nne Mayer, MNCORRECTED TO TSTM WND GST. MESONET STATION MN023, MAYER 1NE.
Jun 11, 8:20 AM CDTNON-TSTM WND GST 692 Nne Mayer, MNMESONET STATION MN023, MAYER 1NE.
Jun 11, 8:21 AM CDTTSTM WND GST 613 W Mound, MNCORRECTED EVENT TIME. SMALL LIMBS DOWN.
Jun 11, 8:22 AM CDTHAIL 1Delano, MN
Jun 11, 8:25 AM CDTTSTM WND DMG1 S Monticello, MNPOWER LINES AND BRANCHES DOWN. VIA SOCIAL MEDIA.
Jun 11, 8:25 AM CDTTSTM WND DMG2 Sse Monticello, MNTIME ESTIMATED. CINDER BLOCK DUGOUT DESTROYED AT HIGH SCHOOL BALL PARK.
Jun 11, 8:25 AM CDTTSTM WND DMGWaconia, MN12 DIAMETER BRANCH DOWN.
Jun 11, 8:27 AM CDTTSTM WND DMG1 Wsw Victoria, MNFEW TREE BRANCHES DOWN.
Jun 11, 8:31 AM CDTTSTM WND DMG2 Sw Chanhassen, MNSNAPPED TREES, 6 TO 12 INCHES IN DIAMETER. RADAR ESTIMATED TIME.
Jun 11, 8:38 AM CDTTSTM WND DMG2 N St. Bonifacius, MN20 INCH DIAMETER TREE DOWN,.
Jun 11, 8:45 AM CDTTSTM WND GST 613 W Mound, MNSMALL LIMBS 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.

IssuedProductOfficeLasted
Jun 11, 6:28 AM CDTSevere Thunderstorm WatchSPC6 hr

The nearest sounding before it

Minneapolis, MN (KMPX), launched 12:00Z, 0.8 hours before the alert went out and 20 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 2017-06-11Temperature 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°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Minneapolis, MN at 12:00Z on 2017-06-11The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 294 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
2213 m above ground
0-6 km bulk shear
46 kt
0-1 km storm-relative helicity
294 m²/s²
0-3 km storm-relative helicity
318 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.9

Open this sounding in Storm Lab

The text

As transmitted.

621 
WUUS53 KMPX 111250
SVRMPX
MNC019-053-171-111345-
/O.NEW.KMPX.SV.W.0058.170611T1250Z-170611T1345Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Twin Cities/Chanhassen MN
750 AM CDT SUN JUN 11 2017

The National Weather Service in The Twin Cities has issued a

* Severe Thunderstorm Warning for...
  Wright County in central Minnesota...
  Western Hennepin County in east central Minnesota...
  Carver County in east central Minnesota...

* Until 845 AM CDT

* At 749 AM CDT, severe thunderstorms were located along a line
  extending from near Kimball to near Sumter, moving east at 60 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. 

* Severe thunderstorms will be near,
  Annandale around 755 AM CDT. 
  Norwood Young America around 805 AM CDT. 
  Monticello, Mayer and Cologne around 810 AM CDT. 
  Waconia and St. Bonifacius around 815 AM CDT. 
  Chaska, Chanhassen, Mound, Victoria and Carver around 820 AM CDT. 
  Excelsior around 825 AM CDT. 
  Eden Prairie and Shakopee around 830 AM CDT. 

Other locations impacted by these severe thunderstorms include
Loretto, Enfield, Hanover, Buffalo Airport, Silver Creek, Greenwood,
Deephaven, Hamburg, Woodland and Greenfield.

This includes the following highways...
 Interstate 94 in Minnesota between mile markers 185 and 205.
 U.S. Highway 12 between mile markers 126 and 140.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4534 9387 4530 9377 4529 9359 4522 9347
      4480 9351 4480 9357 4476 9362 4471 9362
      4464 9375 4468 9377 4468 9389 4472 9390
      4472 9400 4497 9401 4531 9413 4538 9391
TIME...MOT...LOC 1249Z 261DEG 52KT 4535 9427 4477 9424 

HAIL...1.75IN
WIND...60MPH
 
$$

jrb
2 follow-up statements
015 
WWUS53 KMPX 111321
SVSMPX

Severe Weather Statement
National Weather Service Twin Cities/Chanhassen MN
821 AM CDT SUN JUN 11 2017

MNC019-053-171-111345-
/O.CON.KMPX.SV.W.0058.000000T0000Z-170611T1345Z/
Wright MN-Hennepin MN-Carver MN-
821 AM CDT SUN JUN 11 2017

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 845 AM CDT
FOR CENTRAL WRIGHT...WESTERN HENNEPIN AND CARVER COUNTIES...

At 821 AM CDT, severe thunderstorms were located along a line
extending from near Orrock to near Victoria, moving east at 60 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. 

These severe storms will be near...
  Eden Prairie and Shakopee around 830 AM CDT. 

Other locations impacted by these severe thunderstorms include
Loretto, Enfield, Hanover, Buffalo Airport, Silver Creek, Greenwood,
Deephaven, Hamburg, Woodland and Greenfield.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4534 9387 4530 9377 4529 9359 4522 9347
      4480 9351 4480 9357 4476 9362 4471 9362
      4464 9375 4468 9377 4468 9389 4472 9390
      4472 9400 4477 9400 4501 9394 4532 9402
      4538 9391
TIME...MOT...LOC 1321Z 261DEG 52KT 4541 9368 4484 9365 

HAIL...1.75IN
WIND...60MPH
 
$$

jrb
118 
WWUS53 KMPX 111339
SVSMPX

Severe Weather Statement
National Weather Service Twin Cities/Chanhassen MN
839 AM CDT SUN JUN 11 2017

MNC019-053-171-111345-
/O.CON.KMPX.SV.W.0058.000000T0000Z-170611T1345Z/
Wright MN-Hennepin MN-Carver MN-
839 AM CDT SUN JUN 11 2017

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 845 AM CDT
FOR EAST CENTRAL WRIGHT...WESTERN HENNEPIN AND CENTRAL CARVER
COUNTIES...

At 839 AM CDT, severe thunderstorms were located along a line
extending from near Athens to Richfield, moving east at 60 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. 

these severe thunderstorms will remain over mainly rural areas of
east central Wright...western Hennepin and central Carver Counties,
including the following locations: Loretto, Hanover, Greenfield,
Greenwood, Deephaven, Shorewood, Long Lake, Hamel and Woodland.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4530 9377 4529 9359 4522 9347 4480 9351
      4480 9357 4476 9362 4471 9362 4464 9375
      4468 9377 4468 9388 4498 9368
TIME...MOT...LOC 1339Z 261DEG 52KT 4545 9333 4488 9330 

HAIL...1.75IN
WIND...60MPH
 
$$

jrb

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 11, 5:56 AM CDTSevere Thunderstorm WarningMPXChippewa, Lac qui Parle, Swift, Yellow Medicine49 min
Jun 11, 6:09 AM CDTSevere Thunderstorm WarningMPXLac qui Parle, Swift36 min
Jun 11, 6:24 AM CDTSevere Thunderstorm WarningMPXChippewa, Swift66 min
Jun 11, 6:27 AM CDTSevere Thunderstorm WarningMPXRedwood, Renville, Yellow Medicine48 min
Jun 11, 6:50 AM CDTSevere Thunderstorm WarningMPXKandiyohi, Meeker, Redwood, Renville55 min
Jun 11, 7:05 AM CDTSevere Thunderstorm WarningMPXBrown, Redwood55 min
Jun 11, 7:21 AM CDTSevere Thunderstorm WarningMPXMcLeod, Meeker, Sibley, Wright54 min
Jun 11, 7:34 AM CDTTornado WarningMPXKandiyohi, Meeker26 min
Jun 11, 7:38 AM CDTSevere Thunderstorm WarningMPXStearns, Wright52 min
Jun 11, 7:56 AM CDTSpecial Weather StatementMPXChippewa, Lac qui Parle, Pope, Stevens, Swift, Yellow Medicine109 min
Jun 11, 8:00 AM CDTSpecial Weather StatementMPXBrown45 min
Jun 11, 8:05 AM CDTSpecial Weather StatementMPXBenton, Morrison, Sherburne40 min
Jun 11, 8:10 AM CDTSevere Thunderstorm WarningMPXLe Sueur, McLeod, Scott, Sibley50 min
Jun 11, 8:24 AM CDTSpecial Weather StatementMPXNicollet51 min
Jun 11, 8:27 AM CDTSevere Thunderstorm WarningMPXAnoka, Dakota, Hennepin, Ramsey, Scott48 min
Jun 11, 8:38 AM CDTSpecial Weather StatementMPXChisago, Isanti67 min
Jun 11, 8:50 AM CDTSevere Thunderstorm WarningMPXDakota, Washington40 min
Jun 11, 9:00 AM CDTSpecial Weather StatementMPXGoodhue, Le Sueur, Rice60 min
Jun 11, 9:02 AM CDTSevere Thunderstorm WarningMPXAnoka, Chisago, Washington28 min
Jun 11, 9:37 AM CDTSevere Thunderstorm WarningMPXGoodhue38 min
Jun 11, 9:41 AM CDTSpecial Weather StatementMPXBenton, Douglas, Morrison, Pope, Stearns, Todd109 min
Jun 11, 4:08 PM CDTSpecial Weather StatementMPXWright37 min
Jun 11, 4:27 PM CDTSpecial Weather StatementMPXIsanti33 min
Jun 11, 5:11 PM CDTSpecial Weather StatementMPXWright34 min
Jun 11, 5:57 PM CDTSpecial Weather StatementMPXRamsey33 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.