Alert archive / Minnesota / Special Weather Statements in 2021

Special Weather Statement, NWS Twin Cities, MN

June 9, 2021Dakota County, Minnesota

NWS Twin Cities, MN issued this special weather statement at Jun 9, 2021, 6:22 PM CDT for Dakota County, Minnesota. It was in force for 23 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 9, 2021, 6:22 PM CDT (23:22 UTC)
Expired
Jun 9, 2021, 6:45 PM CDT
In force
23 min
Issued by
NWS Twin Cities, MN

County Dakota County, MN

The radar

The Minneapolis radar (KMPX), 34 km from the middle of the area, began a volume at 23:26 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.

The nearest sounding before it

Minneapolis, MN (KMPX), launched 12:00Z, 11.4 hours before the alert went out and 36 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 2021-06-09Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 417 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 2021-06-09The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -23 square meters per square second.1939Sfc1 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
417 J/kg
Mixed-layer CIN
-122 J/kg
Mixed-layer LCL
1661 m above ground
0-6 km bulk shear
6 kt
0-1 km storm-relative helicity
-23 m²/s²
0-3 km storm-relative helicity
53 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

078 
WWUS83 KMPX 092322
SPSMPX

Special Weather Statement
National Weather Service Twin Cities/Chanhassen MN
622 PM CDT Wed Jun 9 2021

MNZ070-092345-
Dakota-
622 PM CDT Wed Jun 9 2021

...A STRONG THUNDERSTORM WILL AFFECT NORTHWESTERN DAKOTA COUNTY...

At 621 PM CDT, a strong thunderstorm was located over Apple Valley,
or 15 miles south of St. Paul, moving north at 25 mph.

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

Locations impacted include...
Eagan, Burnsville, Lakeville, Apple Valley, Inver Grove Heights,
Rosemount, Farmington and Fort Snelling State Park.

LAT...LON 4466 9317 4468 9327 4484 9322 4482 9303
TIME...MOT...LOC 2321Z 193DEG 21KT 4473 9317 

$$

Dye

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 8, 11:04 PM CDTSpecial Weather StatementMPXAnoka26 min
Jun 9, 4:30 PM CDTSpecial Weather StatementMPXStearns15 min
Jun 9, 4:39 PM CDTSpecial Weather StatementMPXStearns21 min
Jun 9, 5:20 PM CDTSpecial Weather StatementMPXMorrison40 min
Jun 9, 6:10 PM CDTSpecial Weather StatementMPXRamsey35 min
Jun 9, 6:14 PM CDTSpecial Weather StatementMPXAnoka31 min
Jun 9, 6:26 PM CDTSevere Thunderstorm WarningMPXTodd19 min
Jun 9, 6:48 PM CDTSpecial Weather StatementMPXRamsey42 min
Jun 9, 6:56 PM CDTSpecial Weather StatementMPXBenton34 min
Jun 9, 6:58 PM CDTSpecial Weather StatementMPXDakota17 min
Jun 8, 10:59 PM CDTSpecial Weather StatementMPXPierce31 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.