Alert archive / Minnesota / Special Weather Statements in 2020

Special Weather Statement, NWS Twin Cities, MN

September 23, 2020Todd County, Minnesota

NWS Twin Cities, MN issued this special weather statement at Sep 23, 2020, 11:28 PM CDT for Todd County, Minnesota. It was in force for 47 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: Sep 23, 2020, 11:28 PM CDT (04:28 UTC)
Expired: Sep 24, 2020, 12:15 AM CDT
In force: 47 min
Issued by: NWS Twin Cities, MN

County Todd County, MN

The radar

The Minneapolis radar (KMPX), 181 km from the middle of the area, began a volume at 04:26 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 00:00Z, 4.5 hours before the alert went out and 179 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 479 J/kg
Mixed-layer CIN: -104 J/kg
Mixed-layer LCL: 1791 m above ground
0-6 km bulk shear: 24 kt
0-1 km storm-relative helicity: 46 m²/s²
0-3 km storm-relative helicity: 60 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.3

Open this sounding in Storm Lab

The text

As transmitted.

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The office that day

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

Issued	Product	Office	Counties	Lasted
Sep 23, 9:57 PM CDT	Special Weather Statement	MPX	Todd	63 min
Sep 23, 10:25 PM CDT	Severe Thunderstorm Warning	MPX	Douglas	35 min
Sep 23, 10:58 PM CDT	Severe Thunderstorm Warning	MPX	Douglas, Todd	32 min
Sep 23, 11:31 PM CDT	Severe Thunderstorm Warning	MPX	Todd	44 min
Sep 24, 12:07 AM CDT	Special Weather Statement	MPX	Morrison	53 min
Sep 24, 3:03 AM CDT	Special Weather Statement	MPX	Sibley	42 min
Sep 24, 5:41 AM CDT	Special Weather Statement	MPX	Carver	34 min
Sep 24, 5:51 AM CDT	Special Weather Statement	MPX	Renville	54 min
Sep 24, 5:57 AM CDT	Special Weather Statement	MPX	Goodhue	48 min
Sep 24, 6:17 AM CDT	Special Weather Statement	MPX	Le Sueur, Scott	43 min
Sep 24, 6:30 AM CDT	Special Weather Statement	MPX	Brown	45 min
Sep 24, 6:56 AM CDT	Special Weather Statement	MPX	Rice, Steele	49 min

Nearby

Special Weather Statements in Minnesota, 2020 Every special weather statement in 2020

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.