Alert archive / Minnesota / Special Weather Statements in 2021

Special Weather Statement, NWS Twin Cities, MN

June 28, 2021Stevens County, Minnesota

NWS Twin Cities, MN issued this special weather statement at Jun 28, 2021, 4:32 PM CDT for Stevens 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 28, 2021, 4:32 PM CDT (21:32 UTC)
Expired
Jun 28, 2021, 5:15 PM CDT
In force
43 min
Issued by
NWS Twin Cities, MN

County Stevens County, MN

The radar

The Aberdeen radar (KABR), 188 km from the middle of the area, began a volume at 21:33 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 12:00Z, 9.5 hours before the alert went out and 207 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, Aberdeen, SD at 12:00Z on 2021-06-28Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 15 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, Aberdeen, SD at 12:00Z on 2021-06-28The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -46 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
15 J/kg
Mixed-layer CIN
-150 J/kg
Mixed-layer LCL
1362 m above ground
0-6 km bulk shear
18 kt
0-1 km storm-relative helicity
-46 m²/s²
0-3 km storm-relative helicity
16 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

445 
WWUS83 KMPX 282132
SPSMPX

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

MNZ047-282215-
Stevens-
432 PM CDT Mon Jun 28 2021

...A STRONG THUNDERSTORM WILL AFFECT NORTH CENTRAL STEVENS COUNTY...

At 432 PM CDT, a strong thunderstorm was located near Donnelly, or 12
miles northwest of Morris, moving north at 10 mph.

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

Locations impacted include...
Donnelly and Fish Lake. 

Torrential rainfall is also occurring with this storm, and may cause
localized flooding. Do not drive your vehicle through flooded
roadways.

LAT...LON 4576 9608 4576 9592 4575 9592 4563 9602
      4566 9614
TIME...MOT...LOC 2132Z 202DEG 10KT 4575 9601 

$$

CEO

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, 12:39 PM CDTSpecial Weather StatementMPXCarver36 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, 4:34 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.