Alert archive / Wisconsin / Special Weather Statements in 2017

Special Weather Statement, NWS Green Bay, WI

August 30, 2017Door County, Oconto County, Wisconsin

NWS Green Bay, WI issued this special weather statement at Aug 30, 2017, 1:30 PM CDT for Door County, Oconto County, Wisconsin. It was in force for 60 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 30, 2017, 1:30 PM CDT (18:30 UTC)
Expired: Aug 30, 2017, 2:30 PM CDT
In force: 60 min
Issued by: NWS Green Bay, WI

Counties Door County, WI, Oconto County, WI

The radar

The Green Bay radar (KGRB), 59 km from the middle of the area, began a volume at 18:30 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, 6.5 hours before the alert went out and 59 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: 1169 m above ground
0-6 km bulk shear: 21 kt
0-1 km storm-relative helicity: 53 m²/s²
0-3 km storm-relative helicity: 57 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 30, 12:39 PM CDT, 51 minutes earlier.

Area forecast discussion, Aug 30, 12:39 PM CDT, 51 minutes before

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Hazardous weather outlook, Aug 30, 3:14 AM CDT, 10 hours 16 minutes before

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In the hours before

Special weather statement, Aug 30, 1:30 PM CDT, 0 minutes before

Special Weather Statement
National Weather Service Green Bay WI
130 PM CDT WED AUG 30 2017

WIZ022-039-040-073-074-301930-
Southern Oconto County WI-Southern Marinette County WI-Kewaunee WI-
Door WI-Brown WI-
130 PM CDT WED AUG 30 2017

...SIGNIFICANT WEATHER ADVISORY FOR NORTHEASTERN BROWN...NORTHERN
KEWAUNEE...SOUTHERN MARINETTE...DOOR AND SOUTHERN OCONTO COUNTIES
UNTIL 230 PM CDT...

At 130 PM CDT, Doppler radar was tracking strong thunderstorms along
a line extending from 19 miles southeast of Newport State Park to
near Gillett. Movement was southeast at 30 mph.

Half inch hail and winds in excess of 40 mph will be possible with
these storms.

Strong thunderstorms will be near...
  Bay Shore Park around 230 PM CDT.

Other locations impacted by these storms include Cullen, Valmy,
Gregorville, Euren, Sobieski, Whitefish Bay, Pensaukee, Carlsville,
Vignes and Hickory Corners.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

&&

LAT...LON 4501 8710 4486 8715 4477 8726 4463 8735
      4457 8792 4482 8825 4485 8825 4498 8847
      4507 8752 4494 8759 4490 8777 4486 8777
      4471 8792 4463 8793 4469 8780 4487 8765
      4494 8745 4508 8736 4512 8695 4511 8695
TIME...MOT...LOC 1830Z 310DEG 24KT 4511 8663 4496 8831

Kurimski

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 30, 3:10 AM CDT	Small Craft Advisory	GRB		43 hr
Aug 30, 10:48 AM CDT	Beach Hazards Statement	GRB	Door, Kewaunee, Manitowoc	35 hr
Aug 30, 1:50 PM CDT	Special Marine Warning	GRB		115 min
Aug 30, 2:15 PM CDT	Special Weather Statement	GRB	Kewaunee	60 min
Aug 30, 2:48 PM CDT	Special Weather Statement	GRB	Brown, Outagamie	57 min
Aug 30, 3:11 PM CDT	Severe Thunderstorm Warning	GRB	Brown, Kewaunee, Manitowoc, Outagamie	49 min
Aug 30, 4:03 PM CDT	Special Weather Statement	GRB	Calumet, Waushara, Winnebago	72 min
Aug 30, 4:34 PM CDT	Special Weather Statement	GRB	Winnebago	26 min
Aug 30, 5:01 PM CDT	Special Weather Statement	GRB	Winnebago	29 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.