Alert archive / Minnesota / Special Weather Statements in 2012

Special Weather Statement, NWS Twin Cities, MN

July 4, 2012Kanabec County, Minnesota

NWS Twin Cities, MN issued this special weather statement at Jul 4, 2012, 8:13 PM CDT for Kanabec County, Minnesota. It was in force for 62 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
Jul 4, 2012, 8:13 PM CDT (01:13 UTC)
Expired
Jul 4, 2012, 9:15 PM CDT
In force
62 min
Issued by
NWS Twin Cities, MN

County Kanabec County, MN

The radar

The Duluth radar (KDLH), 113 km from the middle of the area, began a volume at 01:15 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

Minneapolis, MN (KMPX), launched 00:00Z, 1.2 hours before the alert went out and 150 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-pSkew-T log-p diagram, Minneapolis, MN at 00:00Z on 2012-07-05Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2542 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Minneapolis, MN at 00:00Z on 2012-07-05The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 95 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
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
2542 J/kg
Mixed-layer CIN
-39 J/kg
Mixed-layer LCL
1972 m above ground
0-6 km bulk shear
19 kt
0-1 km storm-relative helicity
95 m²/s²
0-3 km storm-relative helicity
163 m²/s²
Significant tornado parameter
0.0
Supercell composite
5.8

Open this sounding in Storm Lab

The text

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

396 
WWUS83 KMPX 050113
SPSMPX

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
813 PM CDT WED JUL 4 2012

MNZ044-045-050215-
KANABEC-MILLE LACS-
813 PM CDT WED JUL 4 2012

AT 806 PM CDT...WEATHER SERVICE RADAR WAS TRACKING STRONG
THUNDERSTORMS ALONG A LINE EXTENDING FROM 10 MILES NORTH OF MOOSE
LAKE TO 8 MILES NORTH OF MCGRATH TO 5 MILES SOUTHEAST OF BRAINERD.
THESE STORMS WERE MOVING SOUTHEAST AT 20 MPH.

HAIL UP TO DIME SIZE AND WINDS UP TO 50 MPH ARE EXPECTED WITH THESE 
STORMS. THIS STORM IS MOVING TOWARD MILLE LACS LAKE AND NORTHER 
KANABEC COUNTY. THIS STORM MAY BE SEVERE AND A SEVERE THUNDERSTORM 
WARNING MIGHT BE NEEDED BEFORE 830 PM CDT.

* LOCATIONS IN OR NEAR THE PATH OF THESE STORMS INCLUDE...
  ISLE.
  BAYVIEW.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

&&

LAT...LON 4625 9342 4616 9342 4616 9306 4615 9304
      4613 9304 4610 9358 4624 9377 4626 9344
TIME...MOT...LOC 0111Z 322DEG 16KT 4656 9283 4635 9329
          4630 9408

$$

CLF

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 4, 8:28 PM CDTSevere Thunderstorm WarningMPXKanabec, Mille Lacs77 min
Jul 4, 9:44 PM CDTTornado WarningMPXMorrison, Todd31 min
Jul 4, 10:15 PM CDTSevere Thunderstorm WarningMPXMorrison15 min
Jul 4, 10:17 PM CDTSpecial Weather StatementMPXMorrison28 min
Jul 4, 10:57 PM CDTSpecial Weather StatementMPXMille Lacs48 min
Jul 4, 11:46 PM CDTSpecial Weather StatementMPXMille Lacs29 min
Jul 5, 12:04 AM CDTSevere Thunderstorm WarningMPXKanabec, Mille Lacs41 min
Jul 5, 12:34 AM CDTSevere Thunderstorm WarningMPXChisago, Isanti, Kanabec, Mille Lacs41 min
Jul 5, 1:11 AM CDTSevere Thunderstorm WarningMPXChisago16 min
Jul 5, 3:25 AM CDTSpecial Weather StatementMPXWatonwan50 min
Jul 5, 4:03 AM CDTSpecial Weather StatementMPXWatonwan42 min
Jul 5, 5:07 AM CDTSpecial Weather StatementMPXWright38 min
Jul 5, 6:01 AM CDTSpecial Weather StatementMPXCarver44 min
Jul 5, 6:30 AM CDTSpecial Weather StatementMPXMcLeod30 min

Nearby

Special Weather Statements in Minnesota, 2012Every 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.