Alert archive / Minnesota / Special Weather Statements in 2018
Special Weather Statement, NWS Twin Cities, MN
NWS Twin Cities, MN issued this special weather statement at Sep 4, 2018, 2:15 PM CDT for Freeborn County, Minnesota. It was in force for 30 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 4, 2018, 2:15 PM CDT (19:15 UTC)
- Expired
- Sep 4, 2018, 2:45 PM CDT
- In force
- 30 min
- Issued by
- NWS Twin Cities, MN
County Freeborn County, MN
The radar
The Minneapolis radar (KMPX), 148 km from the middle of the area, began a volume at 19:20 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, 7.3 hours before the alert went out and 148 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.
- Mixed-layer CAPE
- 106 J/kg
- Mixed-layer CIN
- -31 J/kg
- Mixed-layer LCL
- 667 m above ground
- 0-6 km bulk shear
- 38 kt
- 0-1 km storm-relative helicity
- 45 m²/s²
- 0-3 km storm-relative helicity
- 71 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.2
The text
As transmitted.
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</html>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 Sep 4, 12:28 PM CDT, 1 hour 47 minutes earlier.
Area forecast discussion, Sep 4, 12:28 PM CDT, 1 hour 47 minutes before
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</html>Hazardous weather outlook, Sep 4, 12:30 PM CDT, 1 hour 45 minutes before
Hazardous Weather Outlook National Weather Service Twin Cities/Chanhassen MN 1230 PM CDT Tue Sep 4 2018 MNZ041>045-047>069-073-WIZ014-015-051730- 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-Redwood-Polk- Barron- 1230 PM CDT Tue Sep 4 2018 This Hazardous Weather Outlook is for portions of central Minnesota...east central Minnesota...southwest Minnesota...west central Minnesota and northwest Wisconsin. .DAY ONE...This Afternoon and Tonight Periods of thunderstorms are expected. Locally heavy rainfall is possible. .DAYS TWO THROUGH SEVEN...Wednesday through Monday No hazardous weather is expected at this time. .SPOTTER INFORMATION STATEMENT... SKYWARN spotter activation will not be needed. MNZ070-074>078-082>085-091>093-WIZ016-023>028-051730- Dakota-Brown-Nicollet-Le Sueur-Rice-Goodhue-Watonwan-Blue Earth- Waseca-Steele-Martin-Faribault-Freeborn-Rusk-St. Croix-Pierce- Dunn-Pepin-Chippewa-Eau Claire- 1230 PM CDT Tue Sep 4 2018 This Hazardous Weather Outlook is for portions of east central Minnesota...south central Minnesota...southeast Minnesota... northwest Wisconsin and west central Wisconsin. .DAY ONE...This Afternoon and Tonight A Flash Flood Watch is in effect through tonight. Periods of thunderstorms are expected to produce very heavy rainfall and several inches are possible. There is a Moderate Risk of excessive rainfall. There is also a Slight Risk of severe thunderstorms this afternoon and evening. A few severe storms capable of damaging winds and tornadoes are possible. .DAYS TWO THROUGH SEVEN...Wednesday through Monday No hazardous weather is expected at this time. .SPOTTER INFORMATION STATEMENT... SKYWARN spotter activation may be needed this afternoon or evening.
In the hours before
Local storm report, Sep 4, 11:59 AM CDT, 2 hours 16 minutes before
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</html>Local storm report, Sep 4, 12:00 PM CDT, 2 hours 15 minutes before
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</html>Local storm report, Sep 4, 12:26 PM CDT, 1 hour 49 minutes before
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</html>Local storm report, Sep 4, 12:28 PM CDT, 1 hour 47 minutes before
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</html>Local storm report, Sep 4, 1:32 PM CDT, 43 minutes before
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</html>Special weather statement, Sep 4, 2:15 PM CDT, 0 minutes before
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</html>The office that day
Everything else NWS Twin Cities, MN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 4, 3:15 AM CDT | Flash Flood Watch | MPX | Blue Earth, Brown, Dakota, Faribault, Freeborn, Goodhue and 7 more | 25 hr |
| Sep 4, 3:29 PM CDT | Tornado Warning | MPX | Steele | 31 min |
| Sep 4, 5:55 PM CDT | Severe Thunderstorm Warning | MPX | Freeborn | 65 min |
| Sep 4, 6:10 PM CDT | Tornado Warning | MPX | Freeborn | 35 min |
| Sep 4, 4:30 PM CDT | Special Weather Statement | MPX | Eau Claire | 30 min |
| Sep 4, 5:05 PM CDT | Special Weather Statement | MPX | Eau Claire | 25 min |
| Sep 4, 6:49 PM CDT | Special Weather Statement | MPX | Eau Claire | 56 min |
Nearby
Special Weather Statements in Minnesota, 2018Every special weather statement in 2018
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.