Alert archive / Minnesota / Severe Thunderstorm Warnings in 2014

Severe Thunderstorm Warning 12, NWS Twin Cities, MN

May 7, 2014Carver County, Hennepin County, Scott County, Minnesota

NWS Twin Cities, MN issued this severe thunderstorm warning at May 7, 2014, 11:41 PM CDT for Carver County, Hennepin County, Scott County, Minnesota. It was in force for 49 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: May 7, 2014, 11:41 PM CDT (04:41 UTC)
Expired: May 8, 2014, 12:30 AM CDT
In force: 49 min
Issued by: NWS Twin Cities, MN
Area: Storm-based polygon
Hail: 1.0 in
Wind: 50.0 mph

Counties Carver County, MN, Hennepin County, MN, Scott County, MN

The radar

The Minneapolis radar (KMPX), 16 km from the middle of the area, began a volume at 04:41 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
May 8, 12:29 AM CDT	HAIL 0.88	Eden Prairie, MN

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.

Issued	Product	Office	Lasted
May 7, 6:40 PM CDT	Severe Thunderstorm Watch	SPC	6 hr

The nearest sounding before it

Minneapolis, MN (KMPX), launched 00:00Z, 4.7 hours before the alert went out and 16 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: 1139 m above ground
0-6 km bulk shear: 46 kt
0-1 km storm-relative helicity: 335 m²/s²
0-3 km storm-relative helicity: 523 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 7.2

Open this sounding in Storm Lab

The text

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

368 
WUUS53 KMPX 080441
SVRMPX
MNC019-053-139-080530-
/O.NEW.KMPX.SV.W.0012.140508T0441Z-140508T0530Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
1141 PM CDT WED MAY 7 2014

THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTHEASTERN CARVER COUNTY IN EAST CENTRAL MINNESOTA...
  SOUTH CENTRAL HENNEPIN COUNTY IN EAST CENTRAL MINNESOTA...
  CENTRAL SCOTT COUNTY IN EAST CENTRAL MINNESOTA...

* UNTIL 1230 AM CDT

* AT 1136 PM CDT...A SEVERE THUNDERSTORM WAS LOCATED NEAR MN VALLEY
  STATE REC AREA...AND MOVING NORTH AT 20 MPH.

  HAZARD...QUARTER SIZE HAIL.

  SOURCE...TRAINED WEATHER SPOTTERS.

  IMPACT...DAMAGE TO VEHICLES IS EXPECTED.

* LOCATIONS IMPACTED INCLUDE...
  EDEN PRAIRIE...JORDAN...MARYSTOWN...CARVER...SHAKOPEE...CHASKA...
  VICTORIA...FLYING CLOUD AIRPORT...NWS CHANHASSEN AND CHANHASSEN.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4460 9378 4489 9371 4489 9336 4457 9355
TIME...MOT...LOC 0441Z 196DEG 18KT 4466 9366

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

$$

BORGHOFF

1 follow-up statement

135 
WWUS53 KMPX 080459
SVSMPX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
1159 PM CDT WED MAY 7 2014

MNC019-053-139-080510-
/O.CAN.KMPX.SV.W.0012.000000T0000Z-140508T0530Z/
CARVER MN-HENNEPIN MN-SCOTT MN-
1159 PM CDT WED MAY 7 2014

...THE SEVERE THUNDERSTORM WARNING FOR CENTRAL SCOTT...SOUTH CENTRAL
HENNEPIN AND SOUTHEASTERN CARVER COUNTIES IS CANCELLED...

THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED BELOW SEVERE
LIMITS...AND NO LONGER POSES AN IMMEDIATE THREAT TO LIFE OR PROPERTY.

ADDITIONAL STRONG THUNDERSTORMS ARE STILL POSSIBLE...AND A SEVERE 
THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 1 AM.

LAT...LON 4460 9378 4489 9371 4489 9336 4457 9355
TIME...MOT...LOC 0500Z 196DEG 18KT 4475 9362

$$

BORGHOFF

The office that day

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

Issued	Product	Office	Counties	Lasted
May 7, 7:20 PM CDT	Special Weather Statement	MPX	Benton, Sherburne, Stearns	55 min
May 7, 8:47 PM CDT	Special Weather Statement	MPX	Blue Earth, Le Sueur, Nicollet	58 min
May 7, 8:58 PM CDT	Severe Thunderstorm Warning	MPX	Blue Earth, Le Sueur, Nicollet	62 min
May 7, 9:20 PM CDT	Severe Thunderstorm Warning	MPX	Blue Earth, Le Sueur, Waseca	55 min
May 7, 9:22 PM CDT	Special Weather Statement	MPX	Sherburne	68 min
May 7, 10:14 PM CDT	Severe Thunderstorm Warning	MPX	Le Sueur, Rice, Waseca	61 min
May 7, 10:57 PM CDT	Severe Thunderstorm Warning	MPX	Rice	48 min
May 7, 11:37 PM CDT	Severe Thunderstorm Warning	MPX	Dakota, Rice, Scott	38 min
May 8, 12:32 AM CDT	Special Weather Statement	MPX	Hennepin, Ramsey, Washington	43 min
May 8, 2:02 AM CDT	Special Weather Statement	MPX	Isanti	43 min
May 8, 2:10 AM CDT	Special Weather Statement	MPX	McLeod	35 min
May 8, 2:23 AM CDT	Special Weather Statement	MPX	Kandiyohi	52 min
May 8, 3:05 AM CDT	Special Weather Statement	MPX	Benton	40 min
May 8, 6:09 AM CDT	Special Weather Statement	MPX	Watonwan	36 min
May 8, 7:08 AM CDT	Special Weather Statement	MPX	Dakota	37 min
May 8, 8:13 AM CDT	Special Weather Statement	MPX	Watonwan	32 min
May 8, 8:37 AM CDT	Special Weather Statement	MPX	Nicollet	23 min
May 8, 9:44 AM CDT	Special Weather Statement	MPX	Martin	46 min
May 8, 10:02 AM CDT	Special Weather Statement	MPX	Redwood	43 min
May 8, 10:20 AM CDT	Special Weather Statement	MPX	Faribault	25 min
May 8, 10:48 AM CDT	Special Weather Statement	MPX	Waseca	42 min
May 8, 11:18 AM CDT	Special Weather Statement	MPX	Lac qui Parle	42 min
May 8, 11:27 AM CDT	Special Weather Statement	MPX	Rice	48 min
May 8, 11:48 AM CDT	Special Weather Statement	MPX	Anoka, Hennepin	42 min
May 8, 12:01 PM CDT	Special Weather Statement	MPX	Stevens	29 min
May 8, 12:22 PM CDT	Special Weather Statement	MPX	Wright	23 min
May 8, 1:08 PM CDT	Special Weather Statement	MPX	Brown	37 min
May 8, 1:11 PM CDT	Severe Thunderstorm Warning	MPX	Brown, Redwood	34 min
May 8, 1:44 PM CDT	Special Weather Statement	MPX	Stevens	31 min
May 8, 2:12 PM CDT	Special Weather Statement	MPX	Faribault	33 min
May 8, 2:21 PM CDT	Special Weather Statement	MPX	Sherburne	24 min
May 8, 2:55 PM CDT	Special Weather Statement	MPX	Carver, Freeborn, Le Sueur, Rice, Scott, Steele and 1 more	50 min
May 8, 3:07 PM CDT	Severe Thunderstorm Warning	MPX	Dakota, Goodhue, Rice, Steele	23 min
May 8, 3:17 PM CDT	Severe Thunderstorm Warning	MPX	Le Sueur, Rice	28 min
May 8, 3:23 PM CDT	Severe Thunderstorm Warning	MPX	Dakota, Scott	52 min
May 8, 3:26 PM CDT	Severe Thunderstorm Warning	MPX	Goodhue, Steele	49 min
May 8, 3:58 PM CDT	Severe Thunderstorm Warning	MPX	Washington	47 min
May 8, 4:10 PM CDT	Special Weather Statement	MPX	Watonwan	35 min
May 8, 4:29 PM CDT	Tornado Warning	MPX	Watonwan	31 min
May 8, 4:55 PM CDT	Tornado Warning Tornado observed	MPX	Blue Earth, Brown, Watonwan	35 min
May 8, 5:15 PM CDT	Tornado Warning Tornado observed	MPX	Blue Earth, Nicollet	45 min
May 8, 5:26 PM CDT	Severe Thunderstorm Warning	MPX	Nicollet, Sibley	49 min
May 8, 5:34 PM CDT	Special Weather Statement	MPX	McLeod	41 min
May 8, 6:13 PM CDT	Special Weather Statement	MPX	Carver	32 min
May 8, 6:14 PM CDT	Special Weather Statement	MPX	Carver	31 min

Nearby

Severe Thunderstorm Warnings in Minnesota, 2014 Every severe thunderstorm warning in 2014

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.