Alert archive / Wisconsin / Areal Flood Advisories in 2021

Areal Flood Advisory 6, NWS Green Bay, WI

June 10, 2021Oneida County, Vilas County, Wisconsin

NWS Green Bay, WI issued this areal flood advisory at Jun 10, 2021, 4:33 PM CDT for Oneida County, Vilas County, Wisconsin. It was in force for 4 hr.

The area

The counties it named.

The facts

Issued: Jun 10, 2021, 4:33 PM CDT (21:33 UTC)
Expired: Jun 10, 2021, 9:00 PM CDT
In force: 4 hr
Issued by: NWS Green Bay, WI
Area: Storm-based polygon

Counties Oneida County, WI, Vilas County, WI

The radar

The Marquette radar (KMQT), 168 km from the middle of the area, began a volume at 21:37 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, 9.6 hours before the alert went out and 191 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: 83 J/kg
Mixed-layer CIN: -163 J/kg
Mixed-layer LCL: 948 m above ground
0-6 km bulk shear: 3 kt
0-1 km storm-relative helicity: -21 m²/s²
0-3 km storm-relative helicity: 14 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this areal flood advisory 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 areal flood advisory went out at Jun 10, 3:57 PM CDT, 36 minutes earlier.

Area forecast discussion, Jun 10, 3:57 PM CDT, 36 minutes before

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Hazardous weather outlook, Jun 10, 3:16 PM CDT, 1 hour 17 minutes before

Hazardous Weather Outlook
National Weather Service Green Bay WI
316 PM CDT Thu Jun 10 2021

WIZ005-010>013-018>022-030-031-035>040-045-048>050-073-074-112030-
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-
316 PM CDT Thu Jun 10 2021

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

.DAY ONE...Tonight

A few thunderstorms with damaging wind gusts are possible through
mid evening. The greatest risk of damaging wind gusts will be
across northern Wisconsin, with a lesser risk across central and
east-central Wisconsin.

Scattered thunderstorms have developed over northern Wisconsin
this afternoon and are expected to shift south into central and
possibly into east-central Wisconsin by mid evening. In addition
to gusty winds, some of the storms will produce heavy downpours
and small hail.

Patchy dense fog may result in localized hazardous travel
conditions near the Lake Michigan shoreline at times, especially
tonight.

.DAYS TWO THROUGH SEVEN...Friday through Thursday

Additional thunderstorms are possible at times from Friday
afternoon into Saturday morning. Widespread severe weather is not
expected; however some of the storms could produce gusty winds,
hail, and heavy rainfall.

.SPOTTER INFORMATION STATEMENT...

Spotters are asked to report rainfall over one inch, flooding,
hail, or wind gusts over 40 mph.

LMZ521-522-541>543-112030-
The Bay of Green Bay south of a line from Cedar River MI to Rock
Island Passage-Lake Michigan from Washington Island to Sheboygan-
316 PM CDT Thu Jun 10 2021

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

.DAY ONE...Tonight

Fog may result in hazardous navigation at times, especially on
Lake Michigan. The fog will develop this evening then become more
widespread tonight.

Thunderstorms could pose a hazard to boaters on the lake and bay
tonight.

.DAYS TWO THROUGH SEVEN...Friday through Thursday

Locally dense fog is expected to persist into Friday.

There is a chance of thunderstorms Friday afternoon into early
Saturday afternoon.

Cooley/Hykin

In the hours before

Special weather statement, Jun 10, 2:17 PM CDT, 2 hours 16 minutes before

Special Weather Statement
National Weather Service Green Bay WI
217 PM CDT Thu Jun 10 2021

WIZ010>013-018-019-102000-
Langlade WI-Florence WI-Oneida WI-Forest WI-
Northern Marinette County WI-Lincoln WI-
217 PM CDT Thu Jun 10 2021

...SIGNIFICANT WEATHER ADVISORY FOR FOREST...NORTHEASTERN LINCOLN...
FLORENCE...NORTHERN MARINETTE...ONEIDA AND NORTHWESTERN LANGLADE
COUNTIES UNTIL 300 PM CDT...

At 216 PM CDT, Doppler radar was tracking strong thunderstorms along
a line extending from near Goodman to near Crandon to near Harrison.
These storms were nearly stationary.

Pea size hail and winds in excess of 40 mph will be possible with
these storms.

Locations impacted include...
Rhinelander, Crandon, Kingsford, Florence, Tomahawk, Newbold,
Harrison, Woodboro, Goodman and Homestead.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

&&

LAT...LON 4588 8930 4586 8929 4586 8918 4589 8917
      4600 8850 4598 8842 4599 8838 4596 8833
      4596 8825 4592 8810 4588 8810 4587 8807
      4582 8814 4578 8805 4558 8799 4527 8962
      4566 9004 4582 9005
TIME...MOT...LOC 1916Z 314DEG 3KT 4566 8836 4555 8897 4543 8960

Kurimski

Special weather statement, Jun 10, 2:56 PM CDT, 1 hour 37 minutes before

Special Weather Statement
National Weather Service Green Bay WI
256 PM CDT Thu Jun 10 2021

WIZ005-010>013-018-019-102300-
Vilas-Oneida-Forest-Florence-Northern Marinette County-Lincoln-
Langlade-
256 PM CDT Thu Jun 10 2021

...SCATTERED THUNDERSTORMS EXPECTED ACROSS NORTH-CENTRAL WISCONSIN
THIS AFTERNOON...

Look for scattered thunderstorms across north-central Wisconsin
during the afternoon hours. The strongest storms will be capable
of producing gusty winds to 40 mph, small hail, and torrential
rainfall. The storms will be moving very slowly, generally east at
around 5 mph. Therefore, repeated rainfall or slow storm movement
could lead to minor flooding.

Kurimski

Local storm report, Jun 10, 3:46 PM CDT, 47 minutes before

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Local storm report, Jun 10, 4:05 PM CDT, 28 minutes before

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Special weather statement, Jun 10, 4:17 PM CDT, 16 minutes before

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Local storm report, Jun 10, 4:21 PM CDT, 12 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
Jun 10, 10:09 AM CDT	Marine Dense Fog Advisory	GRB		18 hr
Jun 10, 12:37 PM CDT	Special Weather Statement	GRB	Forest	53 min
Jun 10, 1:21 PM CDT	Special Weather Statement	GRB	Florence, Forest	54 min
Jun 10, 2:17 PM CDT	Special Weather Statement	GRB	Florence, Forest, Oneida	43 min
Jun 10, 3:20 PM CDT	Severe Thunderstorm Warning	GRB	Vilas	55 min
Jun 10, 4:07 PM CDT	Severe Thunderstorm Warning	GRB	Oneida, Vilas	53 min
Jun 10, 4:17 PM CDT	Special Weather Statement	GRB	Langlade	58 min
Jun 10, 4:31 PM CDT	Severe Thunderstorm Warning	GRB	Langlade, Lincoln	59 min
Jun 10, 6:00 PM CDT	Severe Thunderstorm Warning	GRB	Lincoln	60 min
Jun 10, 6:07 PM CDT	Areal Flood Advisory	GRB	Lincoln	3 hr
Jun 10, 6:24 PM CDT	Severe Thunderstorm Warning	GRB	Lincoln, Marathon	66 min

Nearby

Areal Flood Advisories in Wisconsin, 2021 Every areal flood advisory in 2021

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.