Alert archive / Wisconsin / Special Weather Statements in 2018

Special Weather Statement, NWS Green Bay, WI

June 15, 2018Portage County, Wood County, Wisconsin

NWS Green Bay, WI issued this special weather statement at Jun 15, 2018, 7:39 PM CDT for Portage County, Wood County, Wisconsin. It was in force for 51 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
Jun 15, 2018, 7:39 PM CDT (00:39 UTC)
Expired
Jun 15, 2018, 8:30 PM CDT
In force
51 min
Issued by
NWS Green Bay, WI

Counties Portage County, WI, Wood County, WI

The radar

The La Crosse radar (KARX), 129 km from the middle of the area, began a volume at 00:43 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, 0.7 hours before the alert went out and 142 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-pSkew-T log-p diagram, Green Bay/Straub, WI at 00:00Z on 2018-06-16Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Green Bay/Straub, WI at 00:00Z on 2018-06-16The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 252 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
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
1591 m above ground
0-6 km bulk shear
23 kt
0-1 km storm-relative helicity
252 m²/s²
0-3 km storm-relative helicity
462 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.1

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 Jun 15, 6:42 PM CDT, 57 minutes earlier.

Area forecast discussion, Jun 15, 6:42 PM CDT, 57 minutes before
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Hazardous weather outlook, Jun 15, 2:40 PM CDT, 4 hours 59 minutes before
Hazardous Weather Outlook
National Weather Service Green Bay WI
240 PM CDT Fri Jun 15 2018

WIZ005-010>013-018>022-030-031-035>040-045-048>050-073-074-161945-
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-
240 PM CDT Fri Jun 15 2018

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

.DAY ONE...Tonight

Thunderstorms are possible tonight, especially over northern and
eastern Wisconsin. The primary hazard posed by the storms will be
heavy rainfall and localized flooding, but a few storms could also
be severe and produce large hail and damaging wind gusts.

.DAYS TWO THROUGH SEVEN...Saturday through Friday

Thunderstorms are likely at times through the weekend and into
early next week. Severe storms with large hail and damaging winds
are possible, though the exact timing of the severe risk is
difficult to discern. The storms could also produce heavy rainfall
and pose a risk of flooding.

Hot and humid conditions are possible on Saturday, and somewhat
more likely on Sunday. Anyone engaged in outdoor activities should
take the forecast conditions into account, and develop a plan to
avoid heat-related illnesses.

.SPOTTER INFORMATION STATEMENT...

Spotters are requested to report rainfall amounts, flooding, hail,
and damaging winds to the National Weather Service in Green Bay.

LMZ521-522-541>543-161945-
The Bay of Green Bay south of a line from Cedar River MI to Rock
Island Passage-Lake Michigan from Washington Island to Sheboygan-
240 PM CDT Fri Jun 15 2018

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

.DAY ONE...Tonight

Thunderstorms will pose a hazard to boaters on the lake and bay at
times tonight. Dense fog is also possible on the lake at times.

.DAYS TWO THROUGH SEVEN...Saturday through Friday

There is a chance of thunderstorms will continue through Monday
night. Dense fog is also possible at times through Monday night,
especially on the lake.

Skowronski/Uhlmann

In the hours before

Special weather statement, Jun 15, 3:54 PM CDT, 3 hours 45 minutes before
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Special weather statement, Jun 15, 4:33 PM CDT, 3 hours 6 minutes before
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Special weather statement, Jun 15, 5:03 PM CDT, 2 hours 36 minutes before
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Special weather statement, Jun 15, 5:47 PM CDT, 1 hour 52 minutes before
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Special weather statement, Jun 15, 6:35 PM CDT, 1 hour 4 minutes before
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Special weather statement, Jun 15, 7:39 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.

IssuedProductOfficeCountiesLasted
Jun 15, 7:57 PM CDTSpecial Weather StatementGRBWaushara63 min
Jun 15, 8:28 PM CDTSpecial Weather StatementGRBBrown, Calumet, Door, Kewaunee, Marathon, Oconto and 7 more92 min
Jun 16, 3:30 AM CDTFlash Flood WatchGRBFlorence, Forest, Langlade, Lincoln, Marathon, Marinette and 8 more53 hr
Jun 16, 6:40 AM CDTSpecial Marine WarningGRB65 min
Jun 16, 7:25 AM CDTSpecial Marine WarningGRB75 min
Jun 16, 7:57 AM CDTSpecial Marine WarningGRB33 min
Jun 16, 8:46 AM CDTSpecial Weather StatementGRBDoor44 min
Jun 16, 9:02 AM CDTSpecial Marine WarningGRB88 min
Jun 16, 9:09 AM CDTSpecial Weather StatementGRBMarinette36 min
Jun 16, 9:27 AM CDTSpecial Weather StatementGRBOneida, Vilas48 min
Jun 16, 10:04 AM CDTSpecial Weather StatementGRBDoor41 min
Jun 16, 10:30 AM CDTSpecial Marine WarningGRB60 min
Jun 16, 10:40 AM CDTSpecial Weather StatementGRBMarinette50 min
Jun 16, 10:49 AM CDTSpecial Marine WarningGRB67 min
Jun 16, 11:23 AM CDTSpecial Weather StatementGRBDoor37 min
Jun 16, 11:30 AM CDTSpecial Marine WarningGRB34 min
Jun 16, 12:42 PM CDTSpecial Weather StatementGRBKewaunee48 min
Jun 16, 3:13 PM CDTSpecial Weather StatementGRBPortage47 min
Jun 16, 3:49 PM CDTSpecial Weather StatementGRBWaupaca41 min
Jun 16, 4:24 PM CDTSevere Thunderstorm WarningGRBOutagamie, Waupaca, Waushara, Winnebago66 min
Jun 16, 4:40 PM CDTSevere Thunderstorm WarningGRBWaushara40 min
Jun 16, 4:48 PM CDTSpecial Weather StatementGRBForest57 min
Jun 16, 5:33 PM CDTSpecial Weather StatementGRBWaupaca42 min
Jun 16, 6:02 PM CDTSpecial Weather StatementGRBVilas58 min
Jun 16, 6:08 PM CDTSevere Thunderstorm WarningGRBOneida, Vilas67 min

Nearby

Special Weather Statements in Wisconsin, 2018Every 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.