Alert archive / Minnesota / Special Weather Statements in 2011

Special Weather Statement, NWS Twin Cities, MN

May 28, 2011Dakota County, Minnesota; Pierce County, Wisconsin

NWS Twin Cities, MN issued this special weather statement at May 28, 2011, 4:27 PM CDT for Dakota County, Minnesota; Pierce County, Wisconsin. It was in force for 48 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 28, 2011, 4:27 PM CDT (21:27 UTC)
Expired: May 28, 2011, 5:15 PM CDT
In force: 48 min
Issued by: NWS Twin Cities, MN

Counties Dakota County, MN, Pierce County, WI

The radar

The Minneapolis radar (KMPX), 75 km from the middle of the area, began a volume at 21:29 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 28, 4:30 PM CDT	HAIL 0.75	Hastings, MN

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, 9.5 hours before the alert went out and 78 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: 918 m above ground
0-6 km bulk shear: 70 kt
0-1 km storm-relative helicity: 135 m²/s²
0-3 km storm-relative helicity: 172 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

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

766 
WWUS83 KMPX 282127
SPSMPX

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
427 PM CDT SAT MAY 28 2011

MNZ063-070-078-WIZ024-282215-
DAKOTA-GOODHUE-PIERCE-WASHINGTON-
427 PM CDT SAT MAY 28 2011

AT 424 PM CDT...WEATHER SERVICE RADAR WAS TRACKING A STRONG
THUNDERSTORM NEAR HAMPTON. THIS STORM WAS MOVING EAST AT 35 MPH.

HAIL UP TO DIME SIZE AND WINDS UP TO 40 MPH ARE EXPECTED WITH THIS
STORM. IN ADDITION...THERE IS STILL WEAK ROTATION WITH THIS STORM.
THIS WILL CONTINUE TO RESULT IN WALL CLOUD FORMATION.   

* LOCATIONS IN OR NEAR THE PATH OF THIS STORM INCLUDE...
  HAMPTON.
  NEW TRIER.
  HASTINGS.
  MIESVILLE.
  WELCH.
  DIAMOND BLUFF.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT FOR THE AREA.

&&

LAT...LON 4484 9233 4445 9235 4451 9310 4486 9306
TIME...MOT...LOC 2126Z 271DEG 29KT 4458 9297

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
May 28, 1:56 PM CDT	Severe Thunderstorm Warning	MPX	Nicollet, Redwood, Sibley	7 min
May 28, 2:00 PM CDT	Severe Thunderstorm Warning	MPX	Brown, Nicollet, Redwood, Renville, Sibley	34 min
May 28, 2:16 PM CDT	Severe Thunderstorm Warning	MPX	Carver, Dakota, Le Sueur, McLeod, Rice, Scott and 1 more	44 min
May 28, 2:39 PM CDT	Tornado Warning	MPX	Carver, Scott, Sibley	36 min
May 28, 3:06 PM CDT	Tornado Warning	MPX	Carver, Le Sueur, Rice, Scott, Sibley	39 min
May 28, 3:45 PM CDT	Severe Thunderstorm Warning	MPX	Dakota, Goodhue, Rice, Scott	45 min
May 28, 3:57 PM CDT	Tornado Warning	MPX	Dakota, Goodhue, Rice, Scott	33 min
May 28, 4:35 PM CDT	Severe Thunderstorm Warning	MPX	Dakota, Goodhue	40 min
May 28, 4:43 PM CDT	Special Weather Statement	MPX	Kanabec, Mille Lacs	47 min
May 28, 6:18 PM CDT	Special Weather Statement	MPX	Rice	42 min
May 28, 4:31 PM CDT	Special Weather Statement	MPX	Dunn	44 min
May 28, 5:16 PM CDT	Special Weather Statement	MPX	Pepin, Pierce	44 min
May 28, 5:56 PM CDT	Special Weather Statement	MPX	Pepin	49 min
May 28, 6:45 PM CDT	Special Weather Statement	MPX	Eau Claire	30 min

Nearby

Special Weather Statements in Minnesota, 2011 Special Weather Statements in Wisconsin, 2011 Every special weather statement in 2011

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.