Alert archive / Wisconsin / Lake Effect Snow Warnings in 2013

Lake Effect Snow Warning 1, NWS Milwaukee, WI

December 13, 2013Milwaukee County, Ozaukee County, Racine County, Wisconsin

NWS Milwaukee, WI issued this lake effect snow warning at Dec 13, 2013, 3:34 PM CST for Milwaukee County, Ozaukee County, Racine County, Wisconsin. It took effect at Dec 13, 2013, 5:00 PM CST. It was in force for 7 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Dec 13, 2013, 3:34 PM CST (21:34 UTC)
In effect from
Dec 13, 2013, 5:00 PM CST
Expired
Dec 14, 2013, 12:02 AM CST
In force
7 hr
Issued by
NWS Milwaukee, WI

Counties Milwaukee County, WI, Ozaukee County, WI, Racine County, WI

The radar

The Milwaukee radar (KMKX), 56 km from the middle of the area, began a volume at 21:40 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

Lincoln, IL (KILX), launched 12:00Z, 9.6 hours before the alert went out and 328 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, Lincoln, IL at 12:00Z on 2013-12-13Temperature 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, Lincoln, IL at 12:00Z on 2013-12-13The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 81 square meters per square second.19395878Sfc1 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
0 m above ground
0-6 km bulk shear
54 kt
0-1 km storm-relative helicity
81 m²/s²
0-3 km storm-relative helicity
289 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The office that day

Everything else NWS Milwaukee, WI issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Dec 13, 3:18 AM CSTSmall Craft AdvisoryMKX39 hr
Dec 13, 3:46 AM CSTLake Effect Snow WatchMKXMilwaukee, Ozaukee, Racine, Sheboygan12 hr
Dec 13, 3:46 AM CSTLake Effect Snow AdvisoryMKXDodge, Fond du Lac, Jefferson, Kenosha, Milwaukee, Ozaukee and 5 more36 hr

Nearby

Lake Effect Snow Warnings in Wisconsin, 2013Every lake effect snow warning in 2013

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.