Alert archive / Wisconsin / Special Weather Statements in 2017

Special Weather Statement, NWS Green Bay, WI

July 22, 2017Brown County, Kewaunee County, Wisconsin

NWS Green Bay, WI issued this special weather statement at Jul 22, 2017, 10:42 PM CDT for Brown County, Kewaunee County, Wisconsin. It was in force for 48 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 22, 2017, 10:42 PM CDT (03:42 UTC)
Expired: Jul 22, 2017, 11:30 PM CDT
In force: 48 min
Issued by: NWS Green Bay, WI

Counties Brown County, WI, Kewaunee County, WI

The radar

The Green Bay radar (KGRB), 32 km from the middle of the area, began a volume at 03:40 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 00:00Z, 3.7 hours before the alert went out and 32 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: 160 J/kg
Mixed-layer CIN: -61 J/kg
Mixed-layer LCL: 1275 m above ground
0-6 km bulk shear: 42 kt
0-1 km storm-relative helicity: 18 m²/s²
0-3 km storm-relative helicity: 76 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.6

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 22, 8:09 PM CDT, 2 hours 33 minutes earlier.

Area forecast discussion, Jul 22, 8:09 PM CDT, 2 hours 33 minutes before

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Hazardous weather outlook, Jul 22, 3:00 PM CDT, 7 hours 42 minutes before

Hazardous Weather Outlook
National Weather Service Green Bay WI
300 PM CDT Sat Jul 22 2017

WIZ005-010>013-018>022-030-031-035>040-045-048>050-073-074-232000-
Vilas-Oneida-Forest-Florence-Northern Marinette County-Lincoln-
Langlade-Menominee-Northern Oconto County-Door-Marathon-Shawano-
Wood-Portage-Waupaca-Outagamie-Brown-Kewaunee-Waushara-Winnebago-
Calumet-Manitowoc-Southern Marinette County-
Southern Oconto County-
300 PM CDT Sat Jul 22 2017

This Hazardous Weather Outlook is for north-central and northeast
Wisconsin.

.DAY ONE...Tonight

There is a slight risk of severe thunderstorms across almost all
of northeast Wisconsin tonight. The main threats would be large
hail and damaging winds. Expect the severe potential to reach
north-central Wisconsin late afternoon, central and far northeast
Wisconsin late afternoon into early evening and east-central
Wisconsin early to mid-evening.

.DAYS TWO THROUGH SEVEN...Sunday through Saturday

There is a marginal risk of severe weather on Sunday, primarily
east of a line from Stevens Point to Iron Mountain. Large hail
and gusty winds are the main threats.

There is a chance of thunderstorms Tuesday afternoon through
Wednesday. It is too early to determine whether any of these
storms may become severe.

.SPOTTER INFORMATION STATEMENT...

Spotter activation may be needed this afternoon and tonight.

LMZ521-522-541>543-232000-
The Bay of Green Bay south of a line from Cedar River MI to Rock
Island Passage-Lake Michigan from Washington Island to Sheboygan-
300 PM CDT Sat Jul 22 2017

This Hazardous Weather Outlook is for portions of northwest Lake
Michigan and the waters of Green Bay.

.DAY ONE...Tonight

There is a chance for thunderstorms tonight. A few storms may
contain gusty winds. Humid air developing over the region could
also result in dense fog on the lake tonight which would pose a
navigation hazard to boaters.

.DAYS TWO THROUGH SEVEN...Sunday through Saturday

There is a marginal risk of severe thunderstorms on Sunday. Large
hail and damaging winds are the main threats. There is also a
chance of thunderstorms Tuesday night through Wednesday.

MG/TDH

In the hours before

Special weather statement, Jul 22, 7:29 PM CDT, 3 hours 13 minutes before

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Special weather statement, Jul 22, 7:55 PM CDT, 2 hours 47 minutes before

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Special weather statement, Jul 22, 8:30 PM CDT, 2 hours 12 minutes before

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Special weather statement, Jul 22, 10:13 PM CDT, 29 minutes before

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Special weather statement, Jul 22, 10:18 PM CDT, 24 minutes before

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Special weather statement, Jul 22, 10:42 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 22, 7:00 PM CDT	Severe Thunderstorm Warning	GRB	Oconto, Shawano	25 min
Jul 22, 7:29 PM CDT	Special Weather Statement	GRB	Brown	31 min
Jul 22, 7:55 PM CDT	Special Weather Statement	GRB	Brown	35 min
Jul 22, 8:30 PM CDT	Special Weather Statement	GRB	Oconto	45 min
Jul 22, 10:13 PM CDT	Special Weather Statement	GRB	Winnebago	47 min
Jul 22, 10:18 PM CDT	Special Weather Statement	GRB	Brown, Kewaunee	42 min
Jul 22, 10:30 PM CDT	Special Marine Warning	GRB		60 min
Jul 22, 10:52 PM CDT	Special Marine Warning	GRB		83 min
Jul 22, 11:02 PM CDT	Areal Flood Advisory	GRB	Brown, Door, Kewaunee, Outagamie	58 min
Jul 22, 11:16 PM CDT	Special Weather Statement	GRB	Lincoln, Oneida, Vilas	59 min
Jul 22, 11:19 PM CDT	Special Weather Statement	GRB	Brown, Kewaunee	41 min
Jul 23, 12:01 AM CDT	Special Weather Statement	GRB	Brown, Calumet, Manitowoc	59 min
Jul 23, 1:48 AM CDT	Special Weather Statement	GRB	Manitowoc	42 min
Jul 23, 11:44 AM CDT	Special Weather Statement	GRB	Kewaunee	46 min
Jul 23, 1:28 PM CDT	Special Weather Statement	GRB	Brown, Manitowoc, Outagamie	47 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.