Alert archive / Minnesota / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 148, NWS Twin Cities, MN

June 14, 20126 counties in Minnesota

NWS Twin Cities, MN issued this severe thunderstorm warning at Jun 14, 2012, 12:26 PM CDT for 6 counties in Minnesota. It was in force for 49 min. 21 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 14, 2012, 12:26 PM CDT (17:26 UTC)
Expired: Jun 14, 2012, 1:15 PM CDT
In force: 49 min
Issued by: NWS Twin Cities, MN
Area: Storm-based polygon
Hail: 1.0 in
Wind: 50.0 mph

Counties Anoka County, MN, Dakota County, MN, Hennepin County, MN, Ramsey County, MN, Scott County, MN, Washington County, MN

The radar

The Minneapolis radar (KMPX), 55 km from the middle of the area, began a volume at 17:26 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

Time	Report	Where	Remark
Jun 14, 12:26 PM CDT	HAIL 0.75	Ne St Paul, MN
Jun 14, 12:27 PM CDT	HAIL 0.5	Lake Elmo, MN
Jun 14, 12:27 PM CDT	HAIL 0.75	Maplewood, MN
Jun 14, 12:29 PM CDT	HAIL 1	3 E Minneapolis, MN	REPORTED 2 MILES SOUTH OF CALHOUN BEACH
Jun 14, 12:29 PM CDT	HAIL 1	Falcon Heights, MN
Jun 14, 12:29 PM CDT	HAIL 1	Minneapolis, MN
Jun 14, 12:30 PM CDT	HAIL 0.75	St Paul, MN	ARONA STRET
Jun 14, 12:30 PM CDT	HAIL 1	2 S Lauderdale, MN
Jun 14, 12:30 PM CDT	HAIL 1	Mahtomedi, MN	REPORTED AT INTERSECTION OF 694 AND MN HWY 120.
Jun 14, 12:31 PM CDT	HAIL 1	Roseville, MN	RICE AND HIGHWAY 36
Jun 14, 12:32 PM CDT	HAIL 1	Minneapolis, MN
Jun 14, 12:33 PM CDT	HAIL 1	St Paul, MN	35E AND MARYLAND
Jun 14, 12:35 PM CDT	HAIL 0.75	Maplewood, MN
Jun 14, 12:35 PM CDT	HAIL 1	1 Se Mahtomedi, MN	HIGHWAY 694 AND 36
Jun 14, 12:40 PM CDT	HAIL 0.88	St Paul, MN	WHITE BEAR AVE AND MINNEHAHA
Jun 14, 12:41 PM CDT	HAIL 0.75	Stillwater, MN	TEN TO FIFTEEN MINUTES OF PEA TO DIME SIZE HAIL.
Jun 14, 12:42 PM CDT	HAIL 0.75	Lake Elmo, MN	SECOND ROUND OF HAIL
Jun 14, 12:42 PM CDT	HAIL 1	Maplewood, MN
Jun 14, 12:43 PM CDT	HAIL 0.75	Oakdale, MN
Jun 14, 12:47 PM CDT	HAIL 0.75	Stillwater, MN
Jun 14, 12:47 PM CDT	HAIL 1	St Paul, MN	BEACH STREET

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, 5.4 hours before the alert went out and 58 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 1268 m above ground
0-6 km bulk shear: 34 kt
0-1 km storm-relative helicity: 475 m²/s²
0-3 km storm-relative helicity: 442 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 1.8

Open this sounding in Storm Lab

The text

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

763 
WUUS53 KMPX 141726
SVRMPX
MNC003-037-053-123-139-163-141815-
/O.NEW.KMPX.SV.W.0148.120614T1726Z-120614T1815Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
1226 PM CDT THU JUN 14 2012

THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTHEASTERN ANOKA COUNTY IN EAST CENTRAL MINNESOTA...
  NORTHWESTERN DAKOTA COUNTY IN EAST CENTRAL MINNESOTA...
  SOUTHEASTERN HENNEPIN COUNTY IN EAST CENTRAL MINNESOTA...
  RAMSEY COUNTY IN EAST CENTRAL MINNESOTA...
  NORTHEASTERN SCOTT COUNTY IN EAST CENTRAL MINNESOTA...
  CENTRAL WASHINGTON COUNTY IN EAST CENTRAL MINNESOTA...

* UNTIL 115 PM CDT

* AT 1222 PM CDT...RADAR INDICATED A SEVERE THUNDERSTORM...CAPABLE OF
  PRODUCING QUARTER SIZE HAIL. THIS STORM WAS LOCATED NEAR
  MINNEAPOLIS...AND MOVING NORTHEAST AT 45 MPH.

LOCATIONS IN THE WARNING INCLUDE...
  MINNEAPOLIS...
  ST PAUL...
  TWIN CITIES AIRPORT...
  RICHFIELD...
  ST LOUIS PARK...
  GOLDEN VALLEY...
  ROBBINSDALE...
  EDINA...
  CRYSTAL...
  BROOKLYN CENTER...
  MEDICINE LAKE...
  NEW HOPE...
  BLOOMINGTON...
  EAGAN...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

IF YOU ARE IN THE PATH OF THIS STORM...PREPARE IMMEDIATELY FOR LARGE
HAIL. SEEK SHELTER NOW INSIDE A STURDY STRUCTURE AND STAY AWAY FROM
WINDOWS.

&&

LAT...LON 4520 9278 4509 9277 4508 9280 4505 9280
      4503 9277 4490 9276 4476 9335 4506 9344
TIME...MOT...LOC 1726Z 247DEG 37KT 4495 9324
WIND...HAIL <50MPH 1.00IN

$$

3 follow-up statements

192 
WWUS53 KMPX 141734
SVSMPX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
1234 PM CDT THU JUN 14 2012

MNC003-053-141749-
/O.CAN.KMPX.SV.W.0148.000000T0000Z-120614T1815Z/
ANOKA MN-HENNEPIN MN-
1234 PM CDT THU JUN 14 2012

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN HENNEPIN AND
EXTREME SOUTHEASTERN ANOKA COUNTIES IS CANCELLED...

THE STORM WHICH PROMPTED THE WARNING HAS MOVED OUT OF THE WARNED 
AREA.

LAT...LON 4509 9277 4508 9280 4505 9280 4503 9277
      4490 9276 4480 9315 4492 9320 4511 9321
      4513 9313 4512 9303 4515 9301 4520 9278
TIME...MOT...LOC 1734Z 247DEG 37KT 4498 9313

$$

MNC037-123-163-141815-
/O.CON.KMPX.SV.W.0148.000000T0000Z-120614T1815Z/
DAKOTA MN-RAMSEY MN-WASHINGTON MN-
1234 PM CDT THU JUN 14 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR CENTRAL
WASHINGTON...RAMSEY AND NORTH CENTRAL DAKOTA COUNTIES UNTIL 115 PM
CDT...

AT 1231 PM CDT...NATIONAL WEATHER SERVICE RADAR INDICATED A SEVERE
THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL.  THIS STORM WAS
LOCATED NEAR FALCON HEIGHTS...OR NEAR ST PAUL...MOVING NORTHEAST AT
45 MPH.

LOCATIONS IMPACTED INCLUDE...
  ARDEN HILLS...SOUTH ST PAUL...ST PAUL PARK...SHOREVIEW...NEWPORT...
  LITTLE CANADA...VADNAIS HEIGHTS...MAPLEWOOD...NORTH OAKS...NORTH ST
  PAUL...WOODBURY...OAKDALE...WHITE BEAR LAKE...MAHTOMEDI AND
  WILLERNIE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 60 MILES PER
HOUR...LARGE HAIL...AND DEADLY LIGHTNING. FOR YOUR PROTECTION MOVE TO
AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR HOME OR BUSINESS.

THIS STORM HAS A HISTORY OF PRODUCING LARGE HAIL. SEEK SHELTER NOW
INSIDE A STURDY STRUCTURE AND STAY AWAY FROM WINDOWS!

&&

LAT...LON 4509 9277 4508 9280 4505 9280 4503 9277
      4490 9276 4480 9315 4492 9320 4511 9321
      4513 9313 4512 9303 4515 9301 4520 9278
TIME...MOT...LOC 1734Z 247DEG 37KT 4498 9313
WIND...HAIL <50MPH 1.00IN

$$

106 
WWUS53 KMPX 141748
SVSMPX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
1248 PM CDT THU JUN 14 2012

MNC037-123-141803-
/O.CAN.KMPX.SV.W.0148.000000T0000Z-120614T1815Z/
DAKOTA MN-RAMSEY MN-
1248 PM CDT THU JUN 14 2012

...THE SEVERE THUNDERSTORM WARNING FOR RAMSEY AND NORTH CENTRAL
DAKOTA COUNTIES IS CANCELLED...

THE STORM WHICH PROMPTED THE WARNING HAS MOVED OUT OF THE WARNED 
AREA.

LAT...LON 4509 9276 4508 9280 4505 9280 4503 9277
      4490 9276 4489 9298 4512 9298 4513 9300
      4515 9300 4519 9278
TIME...MOT...LOC 1748Z 247DEG 37KT 4503 9294

$$

MNC163-141815-
/O.CON.KMPX.SV.W.0148.000000T0000Z-120614T1815Z/
WASHINGTON MN-
1248 PM CDT THU JUN 14 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR CENTRAL
WASHINGTON COUNTY UNTIL 115 PM CDT...

AT 1245 PM CDT...NATIONAL WEATHER SERVICE RADAR INDICATED A SEVERE
THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL.  THIS STORM WAS
LOCATED NEAR NORTH ST PAUL...OR 8 MILES NORTHEAST OF ST PAUL...MOVING
NORTHEAST AT 45 MPH.

LOCATIONS IMPACTED INCLUDE...
  LAKELAND...STILLWATER...BAYPORT...AFTON AND OAK PARK HEIGHTS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 60 MILES PER
HOUR...LARGE HAIL...AND DEADLY LIGHTNING. FOR YOUR PROTECTION MOVE TO
AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR HOME OR BUSINESS.

THIS STORM HAS A HISTORY OF PRODUCING LARGE HAIL. SEEK SHELTER NOW
INSIDE A STURDY STRUCTURE AND STAY AWAY FROM WINDOWS!

&&

LAT...LON 4509 9276 4508 9280 4505 9280 4503 9277
      4490 9276 4489 9298 4512 9298 4513 9300
      4515 9300 4519 9278
TIME...MOT...LOC 1748Z 247DEG 37KT 4503 9294
WIND...HAIL <50MPH 1.00IN

$$

423 
WWUS53 KMPX 141757
SVSMPX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
1257 PM CDT THU JUN 14 2012

MNC163-141813-
/O.CAN.KMPX.SV.W.0148.000000T0000Z-120614T1815Z/
WASHINGTON MN-
1257 PM CDT THU JUN 14 2012

...THE SEVERE THUNDERSTORM WARNING FOR CENTRAL WASHINGTON COUNTY IS
CANCELLED...

THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED AND MOVED OUT OF
THE WARNED AREA.

LAT...LON 4509 9276 4508 9280 4505 9280 4503 9277
      4490 9276 4489 9298 4512 9298 4513 9300
      4515 9300 4519 9278
TIME...MOT...LOC 1758Z 247DEG 37KT 4507 9280

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 14, 4:31 AM CDT	Special Weather Statement	MPX	Douglas	44 min
Jun 14, 4:36 AM CDT	Special Weather Statement	MPX	Isanti	39 min
Jun 14, 4:53 AM CDT	Severe Thunderstorm Warning	MPX	Douglas, Pope, Stearns, Todd	67 min
Jun 14, 5:57 AM CDT	Severe Thunderstorm Warning	MPX	Meeker, Stearns	63 min
Jun 14, 7:12 AM CDT	Severe Thunderstorm Warning	MPX	Meeker, Stearns, Wright	48 min
Jun 14, 8:09 AM CDT	Special Weather Statement	MPX	McLeod, Wright	51 min
Jun 14, 8:48 AM CDT	Areal Flood Advisory	MPX	Anoka, Carver, Hennepin, McLeod, Meeker, Ramsey and 3 more	3 hr
Jun 14, 9:11 AM CDT	Special Weather Statement	MPX	Anoka, Carver, Chisago, Hennepin, Isanti, McLeod and 5 more	49 min
Jun 14, 9:22 AM CDT	Severe Thunderstorm Warning	MPX	Carver, McLeod, Scott, Sibley	27 min
Jun 14, 9:41 AM CDT	Areal Flood Advisory	MPX	Dakota, Hennepin, Ramsey, Scott, Washington	3 hr
Jun 14, 10:22 AM CDT	Special Weather Statement	MPX	Carver, Dakota, Hennepin, Le Sueur, Rice, Scott	38 min
Jun 14, 11:52 AM CDT	Special Weather Statement	MPX	Carver, Dakota, Le Sueur, Nicollet, Ramsey, Rice and 2 more	68 min
Jun 14, 12:00 PM CDT	Severe Thunderstorm Warning	MPX	Carver, Le Sueur, Scott, Sibley	45 min
Jun 14, 12:44 PM CDT	Severe Thunderstorm Warning	MPX	Carver, Le Sueur, Nicollet, Rice, Scott, Sibley	46 min
Jun 14, 2:30 PM CDT	Severe Thunderstorm Warning	MPX	Dakota, Le Sueur, Rice	45 min
Jun 14, 2:58 PM CDT	Severe Thunderstorm Warning	MPX	Chisago	47 min
Jun 14, 2:59 PM CDT	Severe Thunderstorm Warning	MPX	Dakota, Goodhue, Rice	46 min
Jun 14, 3:29 PM CDT	Special Weather Statement	MPX	Carver, Le Sueur, Nicollet, Scott, Sibley	46 min
Jun 14, 3:45 PM CDT	Severe Thunderstorm Warning	MPX	Goodhue	45 min
Jun 14, 4:23 PM CDT	Special Weather Statement	MPX	Le Sueur	52 min
Jun 14, 4:37 PM CDT	Special Weather Statement	MPX	Nicollet	38 min
Jun 14, 4:54 PM CDT	Severe Thunderstorm Warning	MPX	Goodhue	36 min
Jun 14, 5:14 PM CDT	Special Weather Statement	MPX	Goodhue	46 min
Jun 14, 5:22 PM CDT	Special Weather Statement	MPX	Le Sueur	38 min
Jun 14, 5:32 PM CDT	Areal Flood Advisory	MPX	Dakota, Goodhue, Le Sueur, Rice, Scott	3 hr
Jun 14, 5:57 PM CDT	Flash Flood Warning	MPX	Dakota, Goodhue, Rice	4 hr
Jun 14, 6:58 PM CDT	Special Weather Statement	MPX	Goodhue	32 min
Jun 14, 6:59 PM CDT	Severe Thunderstorm Warning	MPX	Goodhue	46 min

Nearby

Severe Thunderstorm Warnings in Minnesota, 2012 Every severe thunderstorm warning in 2012

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.