Alert archive / Wisconsin / Special Weather Statements in 2017

Special Weather Statement, NWS Milwaukee, WI

July 18, 2017Ozaukee County, Sheboygan County, Wisconsin

NWS Milwaukee, WI issued this special weather statement at Jul 18, 2017, 8:07 PM CDT for Ozaukee County, Sheboygan County, Wisconsin. It was in force for 38 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: Jul 18, 2017, 8:07 PM CDT (01:07 UTC)
Expired: Jul 18, 2017, 8:45 PM CDT
In force: 38 min
Issued by: NWS Milwaukee, WI

Counties Ozaukee County, WI, Sheboygan County, WI

The radar

The Milwaukee radar (KMKX), 93 km from the middle of the area, began a volume at 01:09 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 00:00Z, 1.1 hours before the alert went out and 311 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: 818 J/kg
Mixed-layer CIN: -8 J/kg
Mixed-layer LCL: 1415 m above ground
0-6 km bulk shear: 20 kt
0-1 km storm-relative helicity: -2 m²/s²
0-3 km storm-relative helicity: 33 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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What forecasters said that day

The local office's own words before this special weather statement 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 special weather statement went out at Jul 18, 3:37 PM CDT, 4 hours 30 minutes earlier.

Area forecast discussion, Jul 18, 3:37 PM CDT, 4 hours 30 minutes before

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Hazardous weather outlook, Jul 18, 3:44 PM CDT, 4 hours 23 minutes before

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In the hours before

Special weather statement, Jul 18, 5:59 PM CDT, 2 hours 8 minutes before

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Special weather statement, Jul 18, 6:22 PM CDT, 1 hour 45 minutes before

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Special weather statement, Jul 18, 6:30 PM CDT, 1 hour 37 minutes before

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Special weather statement, Jul 18, 6:56 PM CDT, 1 hour 11 minutes before

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Special weather statement, Jul 18, 7:34 PM CDT, 33 minutes before

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Special weather statement, Jul 18, 8:07 PM CDT, 0 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 18, 7:34 PM CDT	Special Weather Statement	MKX	Fond du Lac	41 min
Jul 18, 9:21 PM CDT	Special Weather Statement	MKX	Green Lake, Marquette	24 min
Jul 18, 9:50 PM CDT	Special Weather Statement	MKX	Marquette	25 min
Jul 19, 6:32 PM CDT	Severe Thunderstorm Warning	MKX	Iowa, Lafayette, Sauk	73 min

Nearby

Special Weather Statements in Wisconsin, 2017 Every special weather statement in 2017

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.