Alert archive / Minnesota / Special Weather Statements in 2020

Special Weather Statement, NWS Twin Cities, MN

August 8, 2020Lac qui Parle County, Minnesota

NWS Twin Cities, MN issued this special weather statement at Aug 8, 2020, 12:12 PM CDT for Lac qui Parle County, Minnesota. It was in force for 48 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
Aug 8, 2020, 12:12 PM CDT (17:12 UTC)
Expired
Aug 8, 2020, 1:00 PM CDT
In force
48 min
Issued by
NWS Twin Cities, MN

County Lac qui Parle County, MN

The radar

The Sioux Falls radar (KFSD), 158 km from the middle of the area, began a volume at 17:12 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, 5.2 hours before the alert went out and 201 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 2020-08-08Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1441 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 2020-08-08The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 250 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
1441 J/kg
Mixed-layer CIN
-202 J/kg
Mixed-layer LCL
776 m above ground
0-6 km bulk shear
32 kt
0-1 km storm-relative helicity
250 m²/s²
0-3 km storm-relative helicity
273 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.9

Open this sounding in Storm Lab

The text

As transmitted.

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What forecasters said that day

The local office's own words before this special weather statement went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Twin Cities, MN wrote its last area forecast discussion before this special weather statement went out at Aug 8, 6:31 AM CDT, 5 hours 41 minutes earlier.

Area forecast discussion, Aug 8, 6:31 AM CDT, 5 hours 41 minutes before
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Hazardous weather outlook, Aug 8, 9:56 AM CDT, 2 hours 16 minutes before
Hazardous Weather Outlook
National Weather Service Twin Cities/Chanhassen MN
956 AM CDT Sat Aug 8 2020

MNZ041>045-047>070-073>078-082>085-091>093-WIZ014>016-023>028-
091500-
Douglas-Todd-Morrison-Mille Lacs-Kanabec-Stevens-Pope-Stearns-
Benton-Sherburne-Isanti-Chisago-Lac Qui Parle-Swift-Chippewa-
Kandiyohi-Meeker-Wright-Hennepin-Anoka-Ramsey-Washington-
Yellow Medicine-Renville-McLeod-Sibley-Carver-Scott-Dakota-
Redwood-Brown-Nicollet-Le Sueur-Rice-Goodhue-Watonwan-Blue Earth-
Waseca-Steele-Martin-Faribault-Freeborn-Polk-Barron-Rusk-
St. Croix-Pierce-Dunn-Pepin-Eau Claire-
956 AM CDT Sat Aug 8 2020

This Hazardous Weather Outlook is for portions of central and
southern Minnesota...and west central Wisconsin.

.DAY ONE...Today and Tonight.

Thunderstorms are possible today and tonight. A few storms could
become severe this afternoon and tonight, with the primary
threats being large hail, damaging winds, and heavy rainfall.
Heat and humidity will build today, with afternoon heat indices
peaking in the low to mid 90s across the Minnesota portion of the
outlook area.

.DAYS TWO THROUGH SEVEN...Sunday through Friday.

Additional thunderstorms are expected on Sunday and Sunday night.
A few storms could become severe with the primary threats being
large hail, damaging winds, and heavy rainfall.

Periodic thunderstorms are possible Wednesday through Friday.
Severe storms are not expected at this time.

.SPOTTER INFORMATION STATEMENT...

SKYWARN spotter activation may be needed this afternoon and
evening.

In the hours before

Special weather statement, Aug 8, 12:12 PM CDT, 0 minutes before
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The office that day

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

IssuedProductOfficeCountiesLasted
Aug 8, 12:38 PM CDTSpecial Weather StatementMPXYellow Medicine37 min
Aug 8, 12:45 PM CDTSevere Thunderstorm WarningMPXLac qui Parle, Yellow Medicine45 min
Aug 8, 1:14 PM CDTSevere Thunderstorm WarningMPXRedwood, Yellow Medicine46 min
Aug 8, 1:37 PM CDTSevere Thunderstorm WarningMPXChippewa, Renville, Yellow Medicine23 min
Aug 8, 2:03 PM CDTSevere Thunderstorm WarningMPXChippewa, Kandiyohi, Meeker, Redwood, Renville, Sibley42 min
Aug 8, 2:14 PM CDTSpecial Weather StatementMPXBrown, Watonwan46 min
Aug 8, 2:28 PM CDTSevere Thunderstorm WarningMPXCarver, McLeod, Meeker, Nicollet, Sibley47 min
Aug 8, 2:48 PM CDTSevere Thunderstorm WarningMPXKandiyohi, Meeker, Renville, Sibley, Wright27 min
Aug 8, 3:13 PM CDTSpecial Weather StatementMPXCarver, Hennepin, McLeod, Meeker, Wright47 min
Aug 8, 3:17 PM CDTSpecial Weather StatementMPXBlue Earth, Le Sueur, Rice, Scott, Waseca58 min
Aug 8, 4:11 PM CDTSpecial Weather StatementMPXRice, Steele, Waseca49 min
Aug 8, 4:28 PM CDTSevere Thunderstorm WarningMPXFreeborn, Steele, Waseca47 min
Aug 8, 4:58 PM CDTSevere Thunderstorm WarningMPXGoodhue, Rice, Steele36 min
Aug 8, 5:25 PM CDTSevere Thunderstorm WarningMPXDakota, Goodhue35 min
Aug 8, 3:10 AM CDTSpecial Weather StatementMPXRusk65 min
Aug 8, 4:19 AM CDTSpecial Weather StatementMPXRusk41 min
Aug 8, 5:53 PM CDTSevere Thunderstorm WarningMPXDunn, Eau Claire, Pepin, Pierce37 min
Aug 8, 6:38 PM CDTSpecial Weather StatementMPXChippewa, Eau Claire52 min

Nearby

Special Weather Statements in Minnesota, 2020Every 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.