Alert archive / Minnesota / Special Weather Statements in 2012

Special Weather Statement, NWS Twin Cities, MN

August 3, 20126 counties in Minnesota

NWS Twin Cities, MN issued this special weather statement at Aug 3, 2012, 10:25 PM CDT for 6 counties in Minnesota. It was in force for 65 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: Aug 3, 2012, 10:25 PM CDT (03:25 UTC)
Expired: Aug 3, 2012, 11:30 PM CDT
In force: 65 min
Issued by: NWS Twin Cities, MN

Counties Anoka County, MN, Carver County, MN, Hennepin County, MN, McLeod County, MN, Sherburne County, MN, Wright County, MN

The radar

The Minneapolis radar (KMPX), 45 km from the middle of the area, began a volume at 03:26 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
Aug 3, 10:25 PM CDT	TSTM WND DMG	5 Ne Annandale, MN	TREE DOWN ON HOYER AVENUE.
Aug 3, 10:45 PM CDT	TSTM WND GST 61	Waconia, MN
Aug 3, 10:56 PM CDT	TSTM WND GST 64	5 Ene Waconia, MN	AT CARVER CAMPGROUND. MULTIPLE TENTS BLOWN OVER.
Aug 3, 11:00 PM CDT	TSTM WND DMG	2 Sse Minnetrista, MN	EIGHTEEN INCH TREE DOWN ON HOUSE. SEVERAL SMALLER TREES ALSO DOWN.
Aug 3, 11:00 PM CDT	TSTM WND DMG	2 Sw Chanhassen, MN	COUPLE OF TREES DOWN.
Aug 3, 11:00 PM CDT	TSTM WND DMG	Albertville, MN	STREET LIGHT DOWN.
Aug 3, 11:04 PM CDT	TSTM WND GST 51	2 Wsw Shakopee, MN
Aug 3, 11:05 PM CDT	TSTM WND DMG	1 Se Coon Rapids, MN	TREE DOWN ON HOUSE NEAR EGRET AND HIGHWAY 10.
Aug 3, 11:05 PM CDT	TSTM WND DMG	5 Nnw Coon Rapids, MN	TREE DOWN BLOCKING ROAD NEAR ROUND LAKE BLVD AND 143RD IN ANDOVER.
Aug 3, 11:10 PM CDT	TSTM WND DMG	1 N Fridley, MN	TREE DOWN BLOCKING INTERSECTION NEAR HIGHWAY 47 AND 69TH AVE.
Aug 3, 11:10 PM CDT	TSTM WND DMG	4 Nnw East Bethel, MN	TREE DOWN ACROSS ROAD NEAR HIGHWAY 65 AND COUNTY ROAD 24 IN EAST BETHEL.
Aug 3, 11:10 PM CDT	TSTM WND DMG	5 Nnw Blaine, MN	SEVERAL TREES DOWN BLOCKING ROAD IN HAM LAKE NEAR HIGHWAY 65 AND COUNTY ROAD 16.
Aug 3, 11:12 PM CDT	TSTM WND DMG	Bloomington, MN	FOUR INCH DIAMETER TREE BRANCHES REPORTED NEAR 92ND AND KNOX AVE.
Aug 3, 11:15 PM CDT	TSTM WND DMG	2 E Bloomington, MN	36 INCH DIAMETER TREE TOPPLED NEAR BLAISDELL AND 96TH IN BLOOMINGTON.
Aug 3, 11:15 PM CDT	TSTM WND DMG	4 N Blaine, MN	TREE DOWN ACROSS ROAD NEAR BUNKER LAKE BLVD AND RADISSON IN HAM LAKE.
Aug 3, 11:19 PM CDT	HAIL 0.88	3 Nnw Minneapolis, MN	NICKEL-SIZED HAIL REPORTED AT BROADWAY AVE AND INTERSTATE 94.
Aug 3, 11:20 PM CDT	TSTM WND DMG	5 Ese Ham Lake, MN	SIX INCH TREE SNAPPED.
Aug 3, 11:20 PM CDT	TSTM WND DMG	Minneapolis, MN	10 INCH TREE BRANCH IN DOWNTOWN MINNEAPOLIS
Aug 3, 11:25 PM CDT	TSTM WND DMG	4 Ssw Minneapolis, MN	SIX INCH BRANCHES DOWN.
Aug 3, 11:30 PM CDT	TSTM WND GST 59	Ene Falcon Heights, MN	MEASURED NEAR LARPENTEUR AVENUE AND SNELLING AVE.
Aug 3, 11:30 PM CDT	TSTM WND GST 59	Falcon Heights, MN	MEASURED BY HAND HELD ANEMOMETER.

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 00:00Z, 3.4 hours before the alert went out and 44 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: 576 J/kg
Mixed-layer CIN: -95 J/kg
Mixed-layer LCL: 1840 m above ground
0-6 km bulk shear: 48 kt
0-1 km storm-relative helicity: 100 m²/s²
0-3 km storm-relative helicity: 257 m²/s²
Significant tornado parameter: 0.1
Supercell composite: 7.5

Open this sounding in Storm Lab

The text

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

511 
WWUS83 KMPX 040325
SPSMPX

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
1025 PM CDT FRI AUG 3 2012

MNZ049-051-052-058>062-066-068>070-040430-
ANOKA-CARVER-DAKOTA-HENNEPIN-ISANTI-MCLEOD-MEEKER-RAMSEY-SCOTT-
SHERBURNE-STEARNS-WRIGHT-
1025 PM CDT FRI AUG 3 2012

...THUNDERSTORMS MOVING INTO ANOKA...CARVER...DAKOTA...HENNEPIN...
ISANTI...MCLEOD...MEEKER...RAMSEY...SCOTT...SHERBURNE...STEARNS AND 
WRIGHT COUNTIES THROUGH 1130 PM CDT...

AT 1021 PM CDT...WEATHER SERVICE RADAR WAS TRACKING STRONG
THUNDERSTORMS ALONG A LINE EXTENDING FROM 4 MILES NORTHEAST OF SAUK
RAPIDS TO 5 MILES NORTH OF MAPLE LAKE TO 3 MILES WEST OF GLENCOE.
THESE STORMS WERE MOVING EAST AT 45 MPH.

WINDS UP TO 50 MPH ARE EXPECTED WITH THESE STORMS.

* LOCATIONS IN OR NEAR THE PATH OF THESE STORMS INCLUDE...
  HOWARD LAKE.
  MINNEAPOLIS.
  ANOKA.
  EDINA.  
  SANTIAGO.
  WATERTOWN.
  WACONIA.
  OTSEGO.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

SEEK SHELTER AND STAY AWAY FROM WINDOWS UNTIL THE STORM HAS PASSED.

&&

LAT...LON 4554 9316 4531 9308 4477 9319 4473 9444
      4531 9423 4554 9428
TIME...MOT...LOC 0324Z 269DEG 40KT 4562 9404 4530 9399
          4478 9417

$$
SPD

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 3, 7:14 PM CDT	Special Weather Statement	MPX	Chippewa, Lac qui Parle, Swift, Yellow Medicine	46 min
Aug 3, 7:37 PM CDT	Severe Thunderstorm Warning	MPX	Lac qui Parle, Yellow Medicine	53 min
Aug 3, 8:20 PM CDT	Severe Thunderstorm Warning	MPX	Chippewa, Lac qui Parle, Renville, Swift, Yellow Medicine	55 min
Aug 3, 8:26 PM CDT	Severe Thunderstorm Warning	MPX	Douglas, Pope, Stevens	49 min
Aug 3, 9:01 PM CDT	Severe Thunderstorm Warning	MPX	Brown, Redwood, Renville, Yellow Medicine	59 min
Aug 3, 9:07 PM CDT	Severe Thunderstorm Warning	MPX	Chippewa, Kandiyohi, Meeker, Pope, Renville, Stearns and 2 more	53 min
Aug 3, 9:47 PM CDT	Severe Thunderstorm Warning	MPX	Blue Earth, Brown, McLeod, Nicollet, Redwood, Renville and 1 more	58 min
Aug 3, 9:52 PM CDT	Severe Thunderstorm Warning	MPX	McLeod, Meeker, Renville, Sherburne, Stearns, Wright	38 min
Aug 3, 10:29 PM CDT	Special Weather Statement	MPX	Le Sueur, Nicollet, Rice, Scott	61 min
Aug 3, 10:39 PM CDT	Severe Thunderstorm Warning	MPX	Carver, Hennepin	36 min
Aug 3, 10:44 PM CDT	Severe Thunderstorm Warning	MPX	Anoka, Benton, Isanti, Mille Lacs, Sherburne, Wright	46 min
Aug 3, 10:54 PM CDT	Severe Thunderstorm Warning	MPX	Anoka, Carver, Hennepin, Sherburne, Wright	25 min
Aug 3, 11:01 PM CDT	Special Weather Statement	MPX	Blue Earth, Faribault, Freeborn, Martin, Steele, Waseca	44 min
Aug 3, 11:06 PM CDT	Severe Thunderstorm Warning	MPX	Anoka, Carver, Chisago, Dakota, Hennepin, Ramsey and 2 more	39 min
Aug 3, 11:12 PM CDT	Severe Thunderstorm Warning	MPX	Anoka, Chisago, Isanti	33 min
Aug 3, 11:18 PM CDT	Severe Thunderstorm Warning	MPX	Dakota, Goodhue, Rice, Scott, Washington	42 min
Aug 3, 11:38 PM CDT	Severe Thunderstorm Warning	MPX	Chisago, Washington	67 min
Aug 3, 11:44 PM CDT	Severe Thunderstorm Warning	MPX	Dakota, Goodhue, Washington	61 min
Aug 4, 12:19 AM CDT	Special Weather Statement	MPX	Brown	26 min
Aug 4, 1:13 AM CDT	Special Weather Statement	MPX	Martin	47 min
Aug 4, 1:25 AM CDT	Severe Thunderstorm Warning	MPX	Faribault, Martin	65 min
Aug 4, 4:28 AM CDT	Special Weather Statement	MPX	Faribault	47 min
Aug 4, 12:43 AM CDT	Special Weather Statement	MPX	Barron, Chippewa, Dunn, Eau Claire, Pepin, Rusk	62 min

Nearby

Special Weather Statements in Minnesota, 2012 Every special weather statement 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.