Alert archive / Wisconsin / Lakeshore Flood Advisories in 2021

Lakeshore Flood Advisory 2, NWS Milwaukee, WI

October 23, 20214 counties in Wisconsin

NWS Milwaukee, WI issued this lakeshore flood advisory at Oct 23, 2021, 2:44 PM CDT for 4 counties in Wisconsin. It took effect at Oct 25, 2021, 12:00 AM CDT. It was in force for 19 hr.

The area

The counties it named.

The facts

Issued
Oct 23, 2021, 2:44 PM CDT (19:44 UTC)
In effect from
Oct 25, 2021, 12:00 AM CDT
Expired
Oct 25, 2021, 7:00 PM CDT
In force
19 hr
Issued by
NWS Milwaukee, WI

Counties Kenosha County, WI, 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 19:47 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

Davenport, (KDVN), launched 12:00Z, 7.7 hours before the alert went out and 261 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, Davenport, at 12:00Z on 2021-10-23Temperature 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, Davenport, at 12:00Z on 2021-10-23The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -9 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
1267 m above ground
0-6 km bulk shear
69 kt
0-1 km storm-relative helicity
-9 m²/s²
0-3 km storm-relative helicity
157 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
Oct 23, 2:43 PM CDTGale WarningMKX52 hr
Oct 23, 2:45 PM CDTWind AdvisoryMKXKenosha, Milwaukee, Ozaukee, Racine52 hr

Nearby

Lakeshore Flood Advisories in Wisconsin, 2021Every lakeshore flood advisory in 2021

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.