Alert archive / Minnesota / Special Weather Statements in 2021

Special Weather Statement, NWS Twin Cities, MN

June 28, 2021Carver County, Minnesota

NWS Twin Cities, MN issued this special weather statement at Jun 28, 2021, 12:39 PM CDT for Carver County, Minnesota. It was in force for 36 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 28, 2021, 12:39 PM CDT (17:39 UTC)
Expired
Jun 28, 2021, 1:15 PM CDT
In force
36 min
Issued by
NWS Twin Cities, MN

County Carver County, MN

The radar

The Minneapolis radar (KMPX), 36 km from the middle of the area, began a volume at 17:41 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.

The nearest sounding before it

Minneapolis, MN (KMPX), launched 12:00Z, 5.7 hours before the alert went out and 34 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 12:00Z on 2021-06-28Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 591 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Minneapolis, MN at 12:00Z on 2021-06-28The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 30 square meters per square second.1939587897117Sfc1 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
591 J/kg
Mixed-layer CIN
-36 J/kg
Mixed-layer LCL
860 m above ground
0-6 km bulk shear
36 kt
0-1 km storm-relative helicity
30 m²/s²
0-3 km storm-relative helicity
62 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

414 
WWUS83 KMPX 281739
SPSMPX

Special Weather Statement
National Weather Service Twin Cities/Chanhassen MN
1239 PM CDT Mon Jun 28 2021

MNZ067-069-281815-
Sibley-Scott-
1239 PM CDT Mon Jun 28 2021

...A STRONG THUNDERSTORM WILL AFFECT NORTHEASTERN SIBLEY AND
SOUTHWESTERN SCOTT COUNTIES...

At 1239 PM CDT, a strong thunderstorm was located near Henderson, or
29 miles north of Mankato, moving east at 15 mph.

Winds in excess of 40 mph and dime size hail are possible with this
storm.

Locations impacted include...
Belle Plaine.

LAT...LON 4455 9404 4465 9405 4468 9385 4468 9377
      4464 9375 4467 9372 4455 9371 4454 9391
TIME...MOT...LOC 1739Z 261DEG 14KT 4460 9391 

$$

JRB

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 28, 11:26 AM CDTSpecial Weather StatementMPXSibley34 min
Jun 28, 12:09 PM CDTSpecial Weather StatementMPXWatonwan36 min
Jun 28, 12:55 PM CDTSpecial Weather StatementMPXLe Sueur35 min
Jun 28, 1:01 PM CDTSpecial Weather StatementMPXHennepin44 min
Jun 28, 1:29 PM CDTSpecial Weather StatementMPXAnoka31 min
Jun 28, 1:37 PM CDTSpecial Weather StatementMPXScott23 min
Jun 28, 1:59 PM CDTSpecial Weather StatementMPXRamsey16 min
Jun 28, 3:43 PM CDTSpecial Weather StatementMPXRedwood32 min
Jun 28, 4:32 PM CDTSpecial Weather StatementMPXStevens43 min
Jun 28, 4:34 PM CDTSpecial Weather StatementMPXRusk26 min

Nearby

Special Weather Statements in Minnesota, 2021Every special weather statement in 2021

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.