Alert archive / Minnesota / Winter Weather Advisories in 2020
Winter Weather Advisory 9, NWS Twin Cities, MN
NWS Twin Cities, MN issued this winter weather advisory at Feb 12, 2020, 4:30 AM CST for 35 counties in Minnesota. It took effect at Feb 12, 2020, 6:00 AM CST. It was in force for 16 hr.
The area
The counties it named.
The facts
- Issued
- Feb 12, 2020, 4:30 AM CST (10:30 UTC)
- In effect from
- Feb 12, 2020, 6:00 AM CST
- Expired
- Feb 12, 2020, 10:00 PM CST
- In force
- 16 hr
- Issued by
- NWS Twin Cities, MN
All 35 counties
Anoka County, MN, Blue Earth County, MN, Brown County, MN, Carver County, MN, Chippewa County, MN, Dakota County, MN, Douglas County, MN, Faribault County, MN, Freeborn County, MN, Goodhue County, MN, Hennepin County, MN, Kandiyohi County, MN, Lac qui Parle County, MN, Le Sueur County, MN, Martin County, MN, McLeod County, MN, Meeker County, MN, Nicollet County, MN, Pope County, MN, Ramsey County, MN, Redwood County, MN, Renville County, MN, Rice County, MN, Scott County, MN, Sherburne County, MN, Sibley County, MN, Stearns County, MN, Steele County, MN, Stevens County, MN, Swift County, MN, Waseca County, MN, Washington County, MN, Watonwan County, MN, Wright County, MN, Yellow Medicine County, MN
The radar
The Minneapolis radar (KMPX), 58 km from the middle of the area, began a volume at 10:30 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, 10.5 hours before the alert went out and 56 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 991 m above ground
- 0-6 km bulk shear
- 51 kt
- 0-1 km storm-relative helicity
- 221 m²/s²
- 0-3 km storm-relative helicity
- 289 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
What forecasters said that day
The local office's own words before this winter weather advisory 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 winter weather advisory went out at Feb 11, 11:19 PM CST, 5 hours 11 minutes earlier.
Area forecast discussion, Feb 11, 11:19 PM CST, 5 hours 11 minutes before
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</html>Hazardous weather outlook, Feb 11, 3:53 PM CST, 12 hours 37 minutes before
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Special weather statement, Feb 11, 10:50 PM CST, 5 hours 40 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 |
|---|---|---|---|---|
| Feb 11, 8:13 PM CST | Wind Chill Warning | MPX | Benton, Blue Earth, Brown, Carver, Chippewa, Douglas and 26 more | 38 hr |
| Feb 11, 8:13 PM CST | Wind Chill Advisory | MPX | Anoka, Benton, Carver, Chisago, Dakota, Freeborn and 17 more | 40 hr |
Nearby
Winter Weather Advisories in Minnesota, 2020Every winter weather advisory 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.