Alert archive / Wisconsin / Special Weather Statements in 2016

Special Weather Statement, NWS Milwaukee, WI

November 18, 2016Jefferson County, Rock County, Wisconsin

NWS Milwaukee, WI issued this special weather statement at Nov 18, 2016, 9:55 AM CST for Jefferson County, Rock County, Wisconsin. It was in force for 20 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: Nov 18, 2016, 9:55 AM CST (15:55 UTC)
Expired: Nov 18, 2016, 10:15 AM CST
In force: 20 min
Issued by: NWS Milwaukee, WI

Counties Jefferson County, WI, Rock County, WI

The radar

The Milwaukee radar (KMKX), 33 km from the middle of the area, began a volume at 15:55 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

Green Bay/Straub, WI (KGRB), launched 12:00Z, 3.9 hours before the alert went out and 194 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 1193 m above ground
0-6 km bulk shear: 68 kt
0-1 km storm-relative helicity: 144 m²/s²
0-3 km storm-relative helicity: 226 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

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The office that day

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

Issued	Product	Office	Counties	Lasted
Nov 18, 9:28 AM CST	Wind Advisory	MKX	Columbia, Dane, Dodge, Fond du Lac, Green, Green Lake and 14 more	30 hr
Nov 18, 10:30 AM CST	Special Weather Statement	MKX	Walworth	30 min
Nov 18, 10:54 AM CST	Special Weather Statement	MKX	Waukesha	36 min
Nov 18, 11:17 AM CST	Special Weather Statement	MKX	Washington	43 min

Nearby

Special Weather Statements in Wisconsin, 2016 Every special weather statement in 2016

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.