Alert archive / Wisconsin / Special Weather Statements in 2018

Special Weather Statement, NWS Green Bay, WI

July 29, 2018Shawano County, Wisconsin

NWS Green Bay, WI issued this special weather statement at Jul 29, 2018, 5:52 PM CDT for Shawano County, Wisconsin. It was in force for 53 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 29, 2018, 5:52 PM CDT (22:52 UTC)
Expired: Jul 29, 2018, 6:45 PM CDT
In force: 53 min
Issued by: NWS Green Bay, WI

County Shawano County, WI

The radar

The Green Bay radar (KGRB), 70 km from the middle of the area, began a volume at 22:56 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, 10.9 hours before the alert went out and 71 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: 158 J/kg
Mixed-layer CIN: -83 J/kg
Mixed-layer LCL: 1372 m above ground
0-6 km bulk shear: 8 kt
0-1 km storm-relative helicity: 1 m²/s²
0-3 km storm-relative helicity: -7 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 Jul 29, 3:38 PM CDT, 2 hours 14 minutes earlier.

Area forecast discussion, Jul 29, 3:38 PM CDT, 2 hours 14 minutes before

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Hazardous weather outlook, Jul 29, 2:56 PM CDT, 2 hours 56 minutes before

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In the hours before

Special weather statement, Jul 29, 2:08 PM CDT, 3 hours 44 minutes before

Special Weather Statement
National Weather Service Green Bay WI
208 PM CDT SUN JUL 29 2018

WIZ036>038-291945-
Waupaca WI-Outagamie WI-Portage WI-
208 PM CDT SUN JUL 29 2018

...SLOW MOVING SHOWERS AND ISOLATED THUNDERSTORMS...

Slow moving showers and thunderstorms will continue across portions
of Waupaca, Portage, and Outagamie counties early this afternoon.

Pea size hail, torrential rain and winds in excess of 30 mph will be
possible with the strongest storms.

Locations impacted include...
Waupaca, New London, Clintonville, Amherst, Fremont, Embarrass,
Hartman Creek State Park, Weyauwega and Royalton.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

&&

LAT...LON 4424 8950 4435 8954 4442 8939 4447 8923
      4468 8887 4468 8861 4459 8860 4430 8869
      4425 8874
TIME...MOT...LOC 1906Z 235DEG 16KT 4438 8932

Bersch

Special weather statement, Jul 29, 2:12 PM CDT, 3 hours 40 minutes before

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Local storm report, Jul 29, 2:39 PM CDT, 3 hours 13 minutes before

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Special weather statement, Jul 29, 2:44 PM CDT, 3 hours 8 minutes before

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Special weather statement, Jul 29, 2:51 PM CDT, 3 hours 1 minute before

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Special weather statement, Jul 29, 5:52 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
Jul 29, 12:13 PM CDT	Special Weather Statement	GRB	Waushara	47 min
Jul 29, 2:08 PM CDT	Special Weather Statement	GRB	Waupaca	37 min
Jul 29, 2:12 PM CDT	Special Weather Statement	GRB	Brown	63 min
Jul 29, 2:44 PM CDT	Special Weather Statement	GRB	Kewaunee, Manitowoc	61 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.