Alert archive / Minnesota / Winter Weather Advisories in 2023

Winter Weather Advisory 5, NWS Twin Cities, MN

January 18, 202315 counties in Minnesota; Barron County, Polk County, Saint Croix County, Wisconsin

NWS Twin Cities, MN issued this winter weather advisory at Jan 18, 2023, 3:13 AM CST for 15 counties in Minnesota; Barron County, Polk County, Saint Croix County, Wisconsin. It took effect at Jan 18, 2023, 9:00 PM CST. It was in force for 17 hr.

The area

The counties it named.

The facts

Issued
Jan 18, 2023, 3:13 AM CST (09:13 UTC)
In effect from
Jan 18, 2023, 9:00 PM CST
Expired
Jan 19, 2023, 1:41 PM CST
In force
17 hr
Issued by
NWS Twin Cities, MN

Counties Anoka County, MN, Brown County, MN, Carver County, MN, Chisago County, MN, Dakota County, MN, Hennepin County, MN, Le Sueur County, MN, McLeod County, MN, Nicollet County, MN, Ramsey County, MN, Redwood County, MN, Renville County, MN, Scott County, MN, Sibley County, MN, Washington County, MN, Barron County, WI, Polk County, WI, Saint Croix County, WI

The radar

The Minneapolis radar (KMPX), 1 km from the middle of the area, began a volume at 09:17 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, 9.2 hours before the alert went out and 3 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 00:00Z on 2023-01-18Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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 00:00Z on 2023-01-18The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 6 square meters per square second.193958Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
669 m above ground
0-6 km bulk shear
11 kt
0-1 km storm-relative helicity
6 m²/s²
0-3 km storm-relative helicity
-21 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The office that day

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

IssuedProductOfficeCountiesLasted
Jan 18, 3:13 AM CSTWinter Storm WarningMPXBlue Earth, Dakota, Faribault, Freeborn, Goodhue, Le Sueur and 6 more34 hr

Nearby

Winter Weather Advisories in Minnesota, 2023Winter Weather Advisories in Wisconsin, 2023Every winter weather advisory in 2023

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.