Alert archive / Wisconsin / Special Weather Statements in 2018

Special Weather Statement, NWS Milwaukee, WI

September 2, 20185 counties in Wisconsin

NWS Milwaukee, WI issued this special weather statement at Sep 2, 2018, 12:32 AM CDT for 5 counties in Wisconsin. It was in force for 43 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: Sep 2, 2018, 12:32 AM CDT (05:32 UTC)
Expired: Sep 2, 2018, 1:15 AM CDT
In force: 43 min
Issued by: NWS Milwaukee, WI

Counties Green County, WI, Iowa County, WI, Lafayette County, WI, Rock County, WI, Walworth County, WI

The radar

The Milwaukee radar (KMKX), 65 km from the middle of the area, began a volume at 05:31 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, 5.5 hours before the alert went out and 160 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: 1803 J/kg
Mixed-layer CIN: -67 J/kg
Mixed-layer LCL: 1189 m above ground
0-6 km bulk shear: 31 kt
0-1 km storm-relative helicity: 109 m²/s²
0-3 km storm-relative helicity: 160 m²/s²
Significant tornado parameter: 0.5
Supercell composite: 6.9

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 Sep 1, 11:41 PM CDT, 51 minutes earlier.

Area forecast discussion, Sep 1, 11:41 PM CDT, 51 minutes before

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Hazardous weather outlook, Sep 1, 6:51 PM CDT, 5 hours 41 minutes before

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In the hours before

Special weather statement, Sep 1, 11:53 PM CDT, 39 minutes before

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Special weather statement, Sep 2, 12:32 AM 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
Sep 1, 11:53 PM CDT	Special Weather Statement	MKX	Green, Lafayette, Rock, Walworth	52 min
Sep 2, 1:07 AM CDT	Special Weather Statement	MKX	Dane, Sauk	23 min
Sep 2, 4:47 AM CDT	River Flood Watch	MKX	Green Lake	6 days
Sep 2, 2:44 PM CDT	Special Weather Statement	MKX	Fond du Lac	31 min
Sep 2, 2:52 PM CDT	Special Weather Statement	MKX	Lafayette	23 min
Sep 2, 3:15 PM CDT	Special Weather Statement	MKX	Columbia	30 min
Sep 2, 3:21 PM CDT	Severe Thunderstorm Warning	MKX	Iowa, Lafayette	24 min
Sep 2, 3:32 PM CDT	Special Weather Statement	MKX	Dane	28 min
Sep 2, 3:36 PM CDT	Areal Flood Advisory	MKX	Dane, Green, Iowa, Lafayette	2 hr
Sep 2, 3:57 PM CDT	Special Weather Statement	MKX	Lafayette	33 min
Sep 2, 4:20 PM CDT	Severe Thunderstorm Warning	MKX	Iowa, Lafayette	40 min
Sep 2, 4:24 PM CDT	Special Weather Statement	MKX	Dane	36 min
Sep 2, 4:39 PM CDT	Areal Flood Advisory	MKX	Columbia, Dane, Dodge, Green, Iowa, Jefferson and 1 more	3 hr
Sep 2, 4:49 PM CDT	Special Marine Warning	MKX		25 min
Sep 2, 4:58 PM CDT	Areal Flood Advisory	MKX	Dodge, Fond du Lac, Ozaukee, Sheboygan, Washington	3 hr
Sep 2, 5:17 PM CDT	Special Weather Statement	MKX	Dane	58 min
Sep 2, 5:35 PM CDT	Areal Flood Advisory	MKX	Dane, Dodge, Green, Jefferson, Lafayette, Rock and 1 more	3 hr
Sep 2, 5:37 PM CDT	Special Weather Statement	MKX	Green	23 min

Nearby

Special Weather Statements in Wisconsin, 2018 Every special weather statement in 2018

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.