Alert archive / Minnesota / Wind Advisories in 2025

Wind Advisory 17, NWS Duluth, MN

December 18, 2025Cook County, Lake County, Saint Louis County, Minnesota

NWS Duluth, MN issued this wind advisory at Dec 18, 2025, 9:38 AM CST for Cook County, Lake County, Saint Louis County, Minnesota. It took effect at Dec 18, 2025, 5:00 PM CST. It was in force for 11 hr.

The area

The counties it named.

The facts

Issued
Dec 18, 2025, 9:38 AM CST (15:38 UTC)
In effect from
Dec 18, 2025, 5:00 PM CST
Expired
Dec 19, 2025, 4:00 AM CST
In force
11 hr
Issued by
NWS Duluth, MN

Counties Cook County, MN, Lake County, MN, Saint Louis County, MN

The radar

The Duluth radar (KDLH), 106 km from the middle of the area, began a volume at 15:35 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, 3.6 hours before the alert went out and 351 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 2025-12-18Temperature 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 12:00Z on 2025-12-18The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -204 square meters per square second.1939587897117Sfc1 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
1041 m above ground
0-6 km bulk shear
48 kt
0-1 km storm-relative helicity
-204 m²/s²
0-3 km storm-relative helicity
58 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The office that day

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

IssuedProductOfficeCountiesLasted
Dec 17, 7:09 PM CSTHeavy Freezing Spray WarningDLH36 hr
Dec 18, 4:07 AM CSTSmall Craft AdvisoryDLH10 hr
Dec 18, 4:07 AM CSTStorm WarningDLH18 hr
Dec 18, 9:38 AM CSTHigh Wind WarningDLHCook11 hr
Dec 18, 12:26 PM CSTSnow Squall WarningDLHSaint Louis64 min
Dec 18, 1:03 PM CSTSnow Squall WarningDLHLake42 min
Dec 18, 3:33 PM CSTGale WatchDLH23 hr

Nearby

Wind Advisories in Minnesota, 2025Every wind advisory in 2025

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.