Alert archive / Minnesota / Winter Weather Advisories in 2020
Winter Weather Advisory 14, NWS Twin Cities, MN
NWS Twin Cities, MN issued this winter weather advisory at Apr 11, 2020, 2:42 PM CDT for 11 counties in Minnesota; Polk County, Wisconsin. It took effect at Apr 12, 2020, 7:00 AM CDT. It was in force for 16 hr.
The area
The counties it named.
The facts
- Issued
- Apr 11, 2020, 2:42 PM CDT (19:42 UTC)
- In effect from
- Apr 12, 2020, 7:00 AM CDT
- Expired
- Apr 12, 2020, 11:27 PM CDT
- In force
- 16 hr
- Issued by
- NWS Twin Cities, MN
Counties Anoka County, MN, Brown County, MN, Carver County, MN, Chisago County, MN, Hennepin County, MN, McLeod County, MN, Nicollet County, MN, Ramsey County, MN, Redwood County, MN, Renville County, MN, Sibley County, MN, Polk County, WI
The radar
The Minneapolis radar (KMPX), 25 km from the middle of the area, began a volume at 19:44 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, 7.7 hours before the alert went out and 23 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
- 2248 m above ground
- 0-6 km bulk shear
- 48 kt
- 0-1 km storm-relative helicity
- 39 m²/s²
- 0-3 km storm-relative helicity
- 86 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 Apr 11, 1:01 PM CDT, 1 hour 41 minutes earlier.
Area forecast discussion, Apr 11, 1:01 PM CDT, 1 hour 41 minutes before
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</html>Hazardous weather outlook, Apr 11, 11:05 AM CDT, 3 hours 37 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 |
|---|---|---|---|---|
| Apr 11, 2:42 PM CDT | Winter Storm Warning | MPX | Blue Earth, Brown, Dakota, Faribault, Freeborn, Goodhue and 9 more | 37 hr |
Nearby
Winter Weather Advisories in Minnesota, 2020Winter Weather Advisories in Wisconsin, 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.