Alert archive / Minnesota / Special Weather Statements in 2021

Special Weather Statement, NWS Twin Cities, MN

July 14, 2021Freeborn County, Steele County, Waseca County, Minnesota

NWS Twin Cities, MN issued this special weather statement at Jul 14, 2021, 9:08 AM CDT for Freeborn County, Steele County, Waseca County, Minnesota. It was in force for 52 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 14, 2021, 9:08 AM CDT (14:08 UTC)
Expired
Jul 14, 2021, 10:00 AM CDT
In force
52 min
Issued by
NWS Twin Cities, MN

Counties Freeborn County, MN, Steele County, MN, Waseca County, MN

The radar

The Minneapolis radar (KMPX), 116 km from the middle of the area, began a volume at 14:06 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, 2.1 hours before the alert went out and 116 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 2021-07-14Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2820 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 12:00Z on 2021-07-14The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -8 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
2820 J/kg
Mixed-layer CIN
-46 J/kg
Mixed-layer LCL
1084 m above ground
0-6 km bulk shear
22 kt
0-1 km storm-relative helicity
-8 m²/s²
0-3 km storm-relative helicity
69 m²/s²
Significant tornado parameter
0.0
Supercell composite
2.3

Open this sounding in Storm Lab

The text

As transmitted.

054 
WWUS83 KMPX 141408
SPSMPX

Special Weather Statement
National Weather Service Twin Cities/Chanhassen MN
908 AM CDT Wed Jul 14 2021

MNZ083>085-092-093-141500-
Steele-Waseca-Blue Earth-Freeborn-Faribault-
908 AM CDT Wed Jul 14 2021

...A STRONG THUNDERSTORM WILL AFFECT FREEBORN...NORTHEASTERN
FARIBAULT...STEELE...SOUTHEASTERN BLUE EARTH AND SOUTHERN WASECA
COUNTIES...

At 908 AM CDT, a strong thunderstorm was located near Hartland, or 14
miles northwest of Albert Lea, moving northeast at 35 mph.

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

Locations impacted include...
Owatonna, Albert Lea, Wells, Blooming Prairie, New Richland, Clarks
Grove, Ellendale, Minnesota Lake, Alden, Glenville, Geneva and
Hartland.

A Severe Thunderstorm Watch remains in effect until 300 PM CDT for
south central Minnesota.

LAT...LON 4384 9408 4398 9377 4420 9305 4350 9305
      4350 9332
TIME...MOT...LOC 1408Z 228DEG 32KT 4383 9354 

$$

BPH

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 14, 8:11 AM CDTSevere Thunderstorm WarningMPXFaribault, Martin64 min
Jul 14, 8:42 AM CDTSevere Thunderstorm WarningMPXFreeborn33 min
Jul 14, 2:46 PM CDTSpecial Weather StatementMPXHennepin89 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.