Alert archive / Wisconsin / Flood Watches in 2013

Flood Watch 3, NWS Milwaukee, WI

April 16, 201320 counties in Wisconsin

NWS Milwaukee, WI issued this flood watch at Apr 16, 2013, 10:56 AM CDT for 20 counties in Wisconsin. It took effect at Apr 17, 2013, 12:00 PM CDT. It was in force for 33 hr.

The area

The counties it named.

The facts

Issued: Apr 16, 2013, 10:56 AM CDT (15:56 UTC)
In effect from: Apr 17, 2013, 12:00 PM CDT
Expired: Apr 18, 2013, 9:00 PM CDT
In force: 33 hr
Issued by: NWS Milwaukee, WI
Flood severity: None

Counties Columbia County, WI, Dane County, WI, Dodge County, WI, Fond du Lac County, WI, Green County, WI, Green Lake County, WI, Iowa County, WI, Jefferson County, WI, Kenosha County, WI, Lafayette County, WI, Marquette County, WI, Milwaukee County, WI, Ozaukee County, WI, Racine County, WI, Rock County, WI, Sauk County, WI, Sheboygan County, WI, Walworth County, WI, Washington County, WI, Waukesha County, WI

The radar

The Milwaukee radar (KMKX), 31 km from the middle of the area, began a volume at 16:00 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 157 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: 931 m above ground
0-6 km bulk shear: 76 kt
0-1 km storm-relative helicity: -21 m²/s²
0-3 km storm-relative helicity: 44 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this flood watch went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Milwaukee, WI wrote its last area forecast discussion before this flood watch went out at Apr 16, 3:53 AM CDT, 7 hours 3 minutes earlier.

Area forecast discussion, Apr 16, 3:53 AM CDT, 7 hours 3 minutes before

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Hazardous weather outlook, Apr 16, 4:50 AM CDT, 6 hours 6 minutes before

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Nearby

Flood Watches in Wisconsin, 2013 Every flood watch 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.