Alert archive / Wisconsin / Special Weather Statements in 2017

Special Weather Statement, NWS Green Bay, WI

July 6, 2017Waushara County, Wisconsin

NWS Green Bay, WI issued this special weather statement at Jul 6, 2017, 6:33 PM CDT for Waushara County, Wisconsin. It was in force for 57 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 6, 2017, 6:33 PM CDT (23:33 UTC)
Expired
Jul 6, 2017, 7:30 PM CDT
In force
57 min
Issued by
NWS Green Bay, WI

County Waushara County, WI

The radar

The Green Bay radar (KGRB), 119 km from the middle of the area, began a volume at 23:33 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, 11.6 hours before the alert went out and 119 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 12:00Z on 2017-07-06Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 999 joules per kilogram.LCLLFCEL10008507005003002001001 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 12:00Z on 2017-07-06The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 99 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
999 J/kg
Mixed-layer CIN
-115 J/kg
Mixed-layer LCL
1184 m above ground
0-6 km bulk shear
19 kt
0-1 km storm-relative helicity
99 m²/s²
0-3 km storm-relative helicity
94 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 6, 2:24 PM CDT, 4 hours 9 minutes earlier.

Area forecast discussion, Jul 6, 2:24 PM CDT, 4 hours 9 minutes before
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Hazardous weather outlook, Jul 6, 1:19 PM CDT, 5 hours 14 minutes before
Hazardous Weather Outlook
National Weather Service Green Bay WI
119 PM CDT Thu Jul 6 2017

WIZ005-010>013-018>022-030-031-035>040-045-048>050-073-074-071830-
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-
119 PM CDT Thu Jul 6 2017

...SEVERE THUNDERSTORMS WITH VERY LARGE HAIL AND DAMAGING WINDS
POSSIBLE THROUGH THIS EVENING...

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

.DAY ONE...This Afternoon and Tonight

Severe thunderstorms with hail over 2 inches in diameter and wind
gusts over 60 mph are possible through this evening.

Considerable uncertainty remains concerning the evolution of
thunderstorms across the region this afternoon and this evening.

Clouds are clearing out from west to east this afternoon, however
there is quite a bit of capping in place across the region.
Models continue to indicate another round of storms is likely
during the afternoon and evening. Storms during this time will
pose a risk of very large hail over 2 inches in diameter, and
damaging winds. Be sure to closely monitor later forecasts and
statements on the potential for severe storms.

Heavy rainfall will also be possible with the storms, and that
could lead to ponding of water on area roads.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday

The chance for thunderstorms will return on Friday afternoon. A
few of the storms Friday could be strong to severe, with a
marginal risk for severe weather. The strongest storms could
produce hail up to 1 inch and near-severe wind gusts.

Thunderstorm chances will occur at times from Sunday into the
middle of next week.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will likely be needed this afternoon and
evening.

LMZ521-522-541>543-071830-
The Bay of Green Bay south of a line from Cedar River MI to Rock
Island Passage-Lake Michigan from Washington Island to Sheboygan-
119 PM CDT Thu Jul 6 2017

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

.DAY ONE...This Afternoon and Tonight

There is a chance of severe thunderstorms this afternoon and
evening, including strong winds and large hail. Patchy fog will
also continue on the lake into the evening.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday

There is a chance of thunderstorms on Friday afternoon and at
times Sunday through the middle of next week. Some of the storms
Friday afternoon could be strong to severe.

Kurimski

In the hours before

Special weather statement, Jul 6, 12:55 PM CDT, 5 hours 38 minutes before
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Special weather statement, Jul 6, 5:26 PM CDT, 1 hour 7 minutes before
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Local storm report, Jul 6, 5:42 PM CDT, 51 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREEN BAY WI
542 PM CDT THU JUL 06 2017

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0535 PM     HAIL             NW WAUPACA              44.34N 89.06W
07/06/2017  M0.75 INCH       WAUPACA            WI   TRAINED SPOTTER

            MEASURED JUST NW OF THE CITY NEAR HIGHWAY 49.

&&

KLB
Special weather statement, Jul 6, 6:29 PM CDT, 4 minutes before
Special Weather Statement
National Weather Service Green Bay WI
629 PM CDT THU JUL 6 2017

WIZ048-070030-
Winnebago WI-
629 PM CDT THU JUL 6 2017

...STRONG THUNDERSTORM MOVING INTO NORTHWEST WINNEBAGO COUNTY...

At 628 PM CDT, Doppler radar was tracking a strong thunderstorm over
Fremont, or 12 miles southeast of Waupaca, moving southeast at 15
mph.

Dime size hail and winds in excess of 30 mph will be possible with
this storm.

Locations impacted include...
Lake Poygan, Winneconne, Butte Des Morts, Larsen, Orihula, Rivermoor,
Zittau, Harbor Springs, Clarks Point and Allenville.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Torrential rainfall is also occurring with this storm, and may lead
to localized flooding. Do not drive your vehicle through flooded
roadways.

&&

A severe thunderstorm watch remains in effect until midnight CDT for
central and east central Wisconsin.

LAT...LON 4415 8889 4424 8889 4424 8854 4422 8847
      4404 8871
TIME...MOT...LOC 2328Z 307DEG 10KT 4425 8883

AK
Local storm report, Jul 6, 6:33 PM CDT, 0 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREEN BAY WI
633 PM CDT THU JUL 06 2017

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0530 PM     HAIL             WAUPACA                 44.34N 89.06W
07/06/2017  M1.50 INCH       WAUPACA            WI   FIRE DEPT/RESCUE

            SUBMITTED VIA INTERNET.

&&

KLB
Special weather statement, Jul 6, 6:33 PM CDT, 0 minutes before
Special Weather Statement
National Weather Service Green Bay WI
633 PM CDT THU JUL 6 2017

WIZ045-070030-
Waushara WI-
633 PM CDT THU JUL 6 2017

...STRONG THUNDERSTORM MOVING TOWARD WESTERN WAUSHARA COUNTY...

At 632 PM CDT, Doppler radar was tracking a strong thunderstorm 10
miles west of Plainfield, or 14 miles northeast of Friendship, moving
east at 15 mph.

Dime size hail and winds in excess of 30 mph will be possible with
this storm.

Locations impacted include...
Plainfield, Coloma and Hancock.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Torrential rainfall is also occurring with this storm, and may lead
to localized flooding. Do not drive your vehicle through flooded
roadways.

&&

A severe thunderstorm watch remains in effect until midnight CDT for
central Wisconsin.

LAT...LON 4402 8960 4424 8960 4425 8950 4424 8950
      4424 8940 4398 8946
TIME...MOT...LOC 2332Z 283DEG 11KT 4416 8969

AK

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 6, 6:16 AM CDTSpecial Weather StatementGRBVilas44 min
Jul 6, 6:24 AM CDTSevere Thunderstorm WarningGRBVilas36 min
Jul 6, 7:31 AM CDTSpecial Weather StatementGRBMarinette44 min
Jul 6, 8:13 AM CDTSpecial Weather StatementGRBDoor47 min
Jul 6, 9:19 AM CDTSpecial Weather StatementGRBPortage41 min
Jul 6, 9:26 AM CDTSpecial Weather StatementGRBMarinette49 min
Jul 6, 10:11 AM CDTSpecial Weather StatementGRBDoor49 min
Jul 6, 10:17 AM CDTSpecial Marine WarningGRB58 min
Jul 6, 12:55 PM CDTSpecial Weather StatementGRBDoor50 min
Jul 6, 5:26 PM CDTSpecial Weather StatementGRBWaupaca64 min
Jul 6, 6:29 PM CDTSpecial Weather StatementGRBWinnebago61 min
Jul 6, 6:37 PM CDTSpecial Weather StatementGRBVilas68 min

Nearby

Special Weather Statements in Wisconsin, 2017Every 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.