Alert archive / Minnesota / Severe Thunderstorm Warnings in 2015

Severe Thunderstorm Warning 57, NWS Twin Cities, MN

June 29, 2015Dakota County, Hennepin County, Ramsey County, Minnesota

NWS Twin Cities, MN issued this severe thunderstorm warning at Jun 29, 2015, 7:09 PM CDT for Dakota County, Hennepin County, Ramsey County, Minnesota. It was in force for 44 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 29, 2015, 7:09 PM CDT (00:09 UTC)
Expired
Jun 29, 2015, 7:53 PM CDT
In force
44 min
Issued by
NWS Twin Cities, MN
Area
Storm-based polygon
Hail
1.25 in
Wind
50.0 mph

Counties Dakota County, MN, Hennepin County, MN, Ramsey County, MN

The radar

The Minneapolis radar (KMPX), 30 km from the middle of the area, began a volume at 00:09 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 29, 7:15 PM CDTHAIL 0.75Brooklyn Park, MNOCCURRED IN EASTERN PORTION OF THE CITY. REPORTED VIA TWITTER.

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 29, 1:57 PM CDTSevere Thunderstorm WatchSPC8 hr

The nearest sounding before it

Minneapolis, MN (KMPX), launched 00:00Z, 0.2 hours before the alert went out and 33 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 2015-06-30Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 813 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 2015-06-30The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 171 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
813 J/kg
Mixed-layer CIN
-58 J/kg
Mixed-layer LCL
1463 m above ground
0-6 km bulk shear
43 kt
0-1 km storm-relative helicity
171 m²/s²
0-3 km storm-relative helicity
173 m²/s²
Significant tornado parameter
0.4
Supercell composite
9.7

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

979 
WUUS53 KMPX 300009
SVRMPX
MNC037-053-123-300115-
/O.NEW.KMPX.SV.W.0057.150630T0009Z-150630T0115Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
709 PM CDT MON JUN 29 2015

THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHWESTERN DAKOTA COUNTY IN EAST CENTRAL MINNESOTA...
  EASTERN HENNEPIN COUNTY IN EAST CENTRAL MINNESOTA...
  SOUTHERN RAMSEY COUNTY IN EAST CENTRAL MINNESOTA...

* UNTIL 815 PM CDT

* AT 709 PM CDT...A SEVERE THUNDERSTORM WAS LOCATED OVER FRIDLEY...OR
  9 MILES NORTH OF MINNEAPOLIS...MOVING SOUTH AT 25 MPH.

  HAZARD...HALF DOLLAR SIZE HAIL. 

  SOURCE...RADAR INDICATED. 

  IMPACT...DAMAGE TO VEHICLES IS EXPECTED. 

* THIS SEVERE THUNDERSTORM WILL BE NEAR...
  BROOKLYN CENTER AND COLUMBIA HEIGHTS AROUND 715 PM CDT.
  MINNEAPOLIS AND ROSEVILLE AROUND 720 PM CDT.
  GOLDEN VALLEY AROUND 725 PM CDT.
  MINNETONKA AND ST. LOUIS PARK AROUND 730 PM CDT.
  EDINA AND HOPKINS AROUND 735 PM CDT.
  MSP INTERNATIONAL AIRPORT AROUND 740 PM CDT.
  BLOOMINGTON...EDEN PRAIRIE AND RICHFIELD AROUND 745 PM CDT.

OTHER LOCATIONS IMPACTED BY THIS SEVERE THUNDERSTORM INCLUDE FORT
SNELLING...NORTH MINNEAPOLIS...SOUTH ST PAUL AIRPORT...SOUTH ST
PAUL...COMO PARK...FORT SNELLING STATE PARK...MN STATE FAIR...
LILYDALE...UNIV OF MN MINNEAPOLIS CAMPUS AND SUNFISH LAKE.

THIS INCLUDES INTERSTATE 94 IN MINNESOTA BETWEEN MILE MARKERS 222 AND
246.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
BUILDING.

&&

LAT...LON 4509 9327 4509 9328 4504 9328 4504 9322
      4501 9316 4497 9302 4481 9301 4479 9338
      4481 9343 4515 9334 4515 9332
TIME...MOT...LOC 0009Z 007DEG 22KT 4510 9324 

HAIL...1.25IN
WIND...<50MPH
 
$$

BORGHOFF
3 follow-up statements
480 
WWUS53 KMPX 300029
SVSMPX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
729 PM CDT MON JUN 29 2015

MNC037-053-123-300115-
/O.CON.KMPX.SV.W.0057.000000T0000Z-150630T0115Z/
DAKOTA MN-HENNEPIN MN-RAMSEY MN-
729 PM CDT MON JUN 29 2015

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 815 PM CDT
FOR NORTHWESTERN DAKOTA...SOUTHEASTERN HENNEPIN AND SOUTHERN RAMSEY
COUNTIES...

AT 718 PM CDT...A SEVERE THUNDERSTORM WAS LOCATED OVER COLUMBIA
HEIGHTS...OR NEAR MINNEAPOLIS...MOVING SOUTH AT 25 MPH.

HAZARD...PING PONG BALL SIZE HAIL. 

SOURCE...TRAINED WEATHER SPOTTERS. 

IMPACT...PEOPLE AND ANIMALS OUTDOORS WILL BE INJURED. EXPECT DAMAGE 
         TO ROOFS...SIDING...WINDOWS AND VEHICLES. 

THIS SEVERE STORM WILL BE NEAR...
  MINNEAPOLIS AND GOLDEN VALLEY AROUND 725 PM CDT.
  ST. LOUIS PARK AROUND 730 PM CDT.
  HOPKINS AROUND 735 PM CDT.
  EDINA AND MENDOTA HEIGHTS AROUND 740 PM CDT.
  RICHFIELD AND MSP INTERNATIONAL AIRPORT AROUND 745 PM CDT.
  BLOOMINGTON AND EAGAN AROUND 750 PM CDT.

OTHER LOCATIONS IMPACTED BY THIS SEVERE THUNDERSTORM INCLUDE FORT
SNELLING...NORTH MINNEAPOLIS...SOUTH ST PAUL AIRPORT...SOUTH ST
PAUL...COMO PARK...FORT SNELLING STATE PARK...MN STATE FAIR...
LILYDALE...UNIV OF MN MINNEAPOLIS CAMPUS AND SUNFISH LAKE.

THIS INCLUDES INTERSTATE 94 IN MINNESOTA BETWEEN MILE MARKERS 222 AND
246.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
BUILDING.

&&

LAT...LON 4509 9327 4509 9328 4504 9328 4504 9322
      4501 9316 4497 9302 4481 9301 4479 9338
      4481 9343 4510 9335 4511 9329
TIME...MOT...LOC 0018Z 003DEG 20KT 4504 9324 

HAIL...1.50IN
WIND...<50MPH
 
$$

BORGHOFF
684 
WWUS53 KMPX 300040
SVSMPX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
740 PM CDT MON JUN 29 2015

MNC037-053-123-300115-
/O.CON.KMPX.SV.W.0057.000000T0000Z-150630T0115Z/
DAKOTA MN-HENNEPIN MN-RAMSEY MN-
740 PM CDT MON JUN 29 2015

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 815 PM CDT
FOR NORTHWESTERN DAKOTA...SOUTHEASTERN HENNEPIN AND SOUTHWESTERN
RAMSEY COUNTIES...

AT 740 PM CDT...A SEVERE THUNDERSTORM WAS LOCATED OVER FORT
SNELLING...OR NEAR ST. PAUL...MOVING SOUTH AT 25 MPH.

HAZARD...QUARTER SIZE HAIL. 

SOURCE...RADAR INDICATED. 

IMPACT...DAMAGE TO VEHICLES IS EXPECTED. 

THIS SEVERE STORM WILL BE NEAR...
  BLOOMINGTON...EAGAN AND INVER GROVE HEIGHTS AROUND 745 PM CDT.
  BURNSVILLE AROUND 755 PM CDT.

OTHER LOCATIONS IMPACTED BY THIS SEVERE THUNDERSTORM INCLUDE FORT
SNELLING...SOUTH ST PAUL AIRPORT...SOUTH ST PAUL...FORT SNELLING
STATE PARK...MN STATE FAIR...LILYDALE...SUNFISH LAKE...HIGHLAND
PARK...MALL OF AMERICA AND SUNFISH.

THIS INCLUDES INTERSTATE 94 IN MINNESOTA BETWEEN MILE MARKERS 232 AND
241.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
BUILDING.

&&

LAT...LON 4498 9331 4498 9314 4492 9303 4481 9301
      4480 9326
TIME...MOT...LOC 0040Z 356DEG 23KT 4489 9320 

HAIL...1.00IN
WIND...<50MPH
 
$$

BORGHOFF
930 
WWUS53 KMPX 300053
SVSMPX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
753 PM CDT MON JUN 29 2015

MNC037-053-123-300103-
/O.CAN.KMPX.SV.W.0057.000000T0000Z-150630T0115Z/
DAKOTA MN-HENNEPIN MN-RAMSEY MN-
753 PM CDT MON JUN 29 2015

...THE SEVERE THUNDERSTORM WARNING FOR NORTHWESTERN DAKOTA...
SOUTHEASTERN HENNEPIN AND SOUTHWESTERN RAMSEY COUNTIES IS
CANCELLED...
                
THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED BELOW SEVERE
LIMITS...AND NO LONGER POSE AN IMMEDIATE THREAT TO LIFE OR PROPERTY.
THEREFORE THE WARNING HAS BEEN CANCELLED.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 1000 PM CDT FOR
EAST CENTRAL MINNESOTA.

LAT...LON 4498 9331 4498 9314 4492 9303 4481 9301
      4480 9326
TIME...MOT...LOC 0051Z 007DEG 22KT 4481 9321 

$$

BORGHOFF

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 29, 7:16 PM CDTSevere Thunderstorm WarningMPXDakota29 min
Jun 29, 7:43 PM CDTSpecial Weather StatementMPXGoodhue32 min
Jun 29, 8:05 PM CDTSevere Thunderstorm WarningMPXCarver, Hennepin55 min
Jun 29, 8:29 PM CDTSpecial Weather StatementMPXRamsey31 min
Jun 29, 8:39 PM CDTSevere Thunderstorm WarningMPXDakota18 min
Jun 29, 8:41 PM CDTSevere Thunderstorm WarningMPXScott38 min

Nearby

Severe Thunderstorm Warnings in Minnesota, 2015Every severe thunderstorm warning in 2015

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.