Alert archive / Minnesota / Special Weather Statements in 2012

Special Weather Statement, NWS Twin Cities, MN

June 20, 2012Swift County, Minnesota

NWS Twin Cities, MN issued this special weather statement at Jun 20, 2012, 3:32 AM CDT for Swift County, Minnesota. It was in force for 43 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: Jun 20, 2012, 3:32 AM CDT (08:32 UTC)
Expired: Jun 20, 2012, 4:15 AM CDT
In force: 43 min
Issued by: NWS Twin Cities, MN

County Swift County, MN

The radar

The Aberdeen radar (KABR), 179 km from the middle of the area, began a volume at 08:33 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.

The nearest sounding before it

Aberdeen, SD (KABR), launched 00:00Z, 8.5 hours before the alert went out and 183 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: 322 J/kg
Mixed-layer CIN: -368 J/kg
Mixed-layer LCL: 663 m above ground
0-6 km bulk shear: 66 kt
0-1 km storm-relative helicity: 105 m²/s²
0-3 km storm-relative helicity: 206 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.

229 
WWUS83 KMPX 200832
SPSMPX

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
332 AM CDT WED JUN 20 2012

MNZ047-048-054-055-200915-
LAC QUI PARLE-POPE-STEVENS-SWIFT-
332 AM CDT WED JUN 20 2012

...HEAVY RAIN DEVELOPING OVER LAC QUI PARLE...POPE...STEVENS AND
SWIFT COUNTIES THROUGH 415 AM CDT...

AT 330 AM CDT...WEATHER SERVICE RADAR WAS TRACKING A STRONG
THUNDERSTORM 3 MILES WEST OF CORRELL. THIS STORM WAS MOVING NORTHEAST
AT 45 MPH.

PEA SIZE HAIL AND WINDS UP TO 30 MPH ARE EXPECTED WITH THIS STORM 
ALONG WITH THE HEAVY RAIN.

* LOCATIONS IN OR NEAR THE PATH OF THIS STORM INCLUDE...
  LOUISBURG.
  APPLETON.
  CLONTARF.
  HANCOCK.
  CYRUS.

LAT...LON 4526 9633 4526 9629 4523 9627 4523 9623
      4520 9618 4520 9612 4522 9611 4524 9613
      4539 9613 4569 9565 4549 9543 4509 9622
      4523 9638
TIME...MOT...LOC 0831Z 224DEG 50KT 4525 9621

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 19, 7:30 PM CDT	Special Weather Statement	MPX	Todd	30 min
Jun 19, 8:01 PM CDT	Special Weather Statement	MPX	Chippewa	44 min
Jun 19, 8:05 PM CDT	Areal Flood Advisory	MPX	Douglas, Pope, Stearns, Stevens, Todd	6 hr
Jun 19, 8:19 PM CDT	Severe Thunderstorm Warning	MPX	Chippewa, Kandiyohi, Swift	40 min
Jun 19, 9:20 PM CDT	River Flood Warning	MPX	Hennepin, Wright	4 days
Jun 19, 10:59 PM CDT	Special Weather Statement	MPX	Todd	46 min
Jun 20, 12:10 AM CDT	Special Weather Statement	MPX	Todd	50 min
Jun 20, 4:35 AM CDT	Special Weather Statement	MPX	Todd	25 min
Jun 20, 4:37 AM CDT	Special Weather Statement	MPX	Todd	38 min
Jun 20, 9:43 AM CDT	Special Weather Statement	MPX	Chisago, Isanti, Kanabec, Mille Lacs	47 min
Jun 20, 9:55 AM CDT	Severe Thunderstorm Warning	MPX	Kanabec, Mille Lacs	35 min
Jun 20, 11:29 AM CDT	River Flood Warning	MPX	Benton, Sherburne, Stearns	6 days
Jun 20, 3:24 PM CDT	Flash Flood Warning	MPX	Dakota, Goodhue, Rice	4 hr
Jun 20, 3:37 PM CDT	Areal Flood Advisory	MPX	Blue Earth, Faribault, Freeborn, Goodhue, Le Sueur, Rice and 2 more	4 hr
Jun 20, 3:55 PM CDT	Areal Flood Advisory	MPX	Barron, Dunn, Pepin, Pierce, Polk, Rusk and 1 more	4 hr
Jun 20, 4:08 PM CDT	Severe Thunderstorm Warning	MPX	Dunn, Pepin, Pierce, Saint Croix	52 min
Jun 20, 4:34 PM CDT	Areal Flood Advisory	MPX	Chippewa, Eau Claire, Rusk	3 hr
Jun 20, 4:46 PM CDT	Severe Thunderstorm Warning	MPX	Chippewa, Dunn, Eau Claire	44 min
Jun 20, 5:03 PM CDT	Special Weather Statement	MPX	Rusk	42 min
Jun 20, 5:11 PM CDT	Severe Thunderstorm Warning	MPX	Chippewa, Rusk	34 min
Jun 20, 5:31 PM CDT	Severe Thunderstorm Warning	MPX	Chippewa, Eau Claire	44 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.