Alert archive / Wisconsin / Special Weather Statements in 2017

Special Weather Statement, NWS Green Bay, WI

August 1, 20174 counties in Wisconsin

NWS Green Bay, WI issued this special weather statement at Aug 1, 2017, 12:39 PM CDT for 4 counties in Wisconsin. It was in force for 36 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: Aug 1, 2017, 12:39 PM CDT (17:39 UTC)
Expired: Aug 1, 2017, 1:15 PM CDT
In force: 36 min
Issued by: NWS Green Bay, WI

Counties Marinette County, WI, Menominee County, WI, Oconto County, WI, Shawano County, WI

The radar

The Green Bay radar (KGRB), 92 km from the middle of the area, began a volume at 17:42 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, 5.7 hours before the alert went out and 94 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: 558 J/kg
Mixed-layer CIN: -50 J/kg
Mixed-layer LCL: 838 m above ground
0-6 km bulk shear: 1 kt
0-1 km storm-relative helicity: -17 m²/s²
0-3 km storm-relative helicity: 19 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 Green Bay, WI wrote its last area forecast discussion before this special weather statement went out at Aug 1, 12:33 PM CDT, 6 minutes earlier.

Area forecast discussion, Aug 1, 12:33 PM CDT, 6 minutes before

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Hazardous weather outlook, Aug 1, 5:19 AM CDT, 7 hours 20 minutes before

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In the hours before

Special weather statement, Aug 1, 12:39 PM CDT, 0 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 1, 1:16 PM CDT	Special Weather Statement	GRB	Oconto, Outagamie	59 min
Aug 1, 2:39 PM CDT	Special Marine Warning	GRB		66 min
Aug 1, 2:48 PM CDT	Special Weather Statement	GRB	Oconto	42 min
Aug 1, 3:42 PM CDT	Special Weather Statement	GRB	Kewaunee	63 min
Aug 1, 4:02 PM CDT	Special Weather Statement	GRB	Oneida, Vilas	43 min
Aug 1, 4:05 PM CDT	Special Weather Statement	GRB	Kewaunee	55 min
Aug 1, 4:14 PM CDT	Special Weather Statement	GRB	Oconto	46 min
Aug 1, 4:34 PM CDT	Special Weather Statement	GRB	Oconto	41 min
Aug 1, 4:46 PM CDT	Special Weather Statement	GRB	Florence, Forest, Lincoln, Oneida, Vilas	89 min
Aug 1, 5:19 PM CDT	Special Weather Statement	GRB	Oconto	26 min
Aug 1, 6:08 PM CDT	Special Weather Statement	GRB	Calumet	22 min
Aug 1, 6:22 PM CDT	Special Weather Statement	GRB	Langlade	83 min
Aug 1, 6:37 PM CDT	Special Weather Statement	GRB	Calumet	23 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.