Alert archive / Minnesota / Frost Advisories in 2024

Frost Advisory 13, NWS Duluth, MN

October 3, 20245 counties in Minnesota; Ashland County, Iron County, Price County, Wisconsin

NWS Duluth, MN issued this frost advisory at Oct 3, 2024, 1:39 PM CDT for 5 counties in Minnesota; Ashland County, Iron County, Price County, Wisconsin. It took effect at Oct 4, 2024, 1:00 AM CDT. It was in force for 8 hr.

The area

The counties it named.

The facts

Issued
Oct 3, 2024, 1:39 PM CDT (18:39 UTC)
In effect from
Oct 4, 2024, 1:00 AM CDT
Expired
Oct 4, 2024, 9:00 AM CDT
In force
8 hr
Issued by
NWS Duluth, MN

Counties Aitkin County, MN, Cass County, MN, Crow Wing County, MN, Lake County, MN, Saint Louis County, MN, Ashland County, WI, Iron County, WI, Price County, WI

The radar

The Duluth radar (KDLH), 16 km from the middle of the area, began a volume at 18:42 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, 6.7 hours before the alert went out and 236 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 2024-10-03Temperature 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 2024-10-03The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -194 square meters per square second.1939587897Sfc1 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
1703 m above ground
0-6 km bulk shear
65 kt
0-1 km storm-relative helicity
-194 m²/s²
0-3 km storm-relative helicity
-216 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
Oct 3, 9:55 AM CDTSmall Craft AdvisoryDLH12 hr
Oct 3, 1:39 PM CDTFreeze WarningDLHAitkin, Carlton, Cook, Itasca, Koochiching, Lake and 2 more19 hr

Nearby

Frost Advisories in Minnesota, 2024Frost Advisories in Wisconsin, 2024Every frost advisory in 2024

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.