Alert archive / Wisconsin / Beach Hazards Statements in 2020

Beach Hazards Statement 6, NWS Green Bay, WI

August 2, 2020Door County, Kewaunee County, Manitowoc County, Wisconsin

NWS Green Bay, WI issued this beach hazards statement at Aug 2, 2020, 3:09 PM CDT for Door County, Kewaunee County, Manitowoc County, Wisconsin. It took effect at Aug 2, 2020, 7:00 PM CDT. It was in force for 26 hr.

The area

The counties it named.

The facts

Issued
Aug 2, 2020, 3:09 PM CDT (20:09 UTC)
In effect from
Aug 2, 2020, 7:00 PM CDT
Expired
Aug 3, 2020, 8:55 PM CDT
In force
26 hr
Issued by
NWS Green Bay, WI

Counties Door County, WI, Kewaunee County, WI, Manitowoc County, WI

The radar

The Green Bay radar (KGRB), 47 km from the middle of the area, began a volume at 20:13 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

Detroit, MI (KDTX), launched 12:00Z, 8.2 hours before the alert went out and 383 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, Detroit, MI at 12:00Z on 2020-08-02Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 248 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Detroit, MI at 12:00Z on 2020-08-02The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 20 square meters per square second.1939Sfc1 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
248 J/kg
Mixed-layer CIN
-3 J/kg
Mixed-layer LCL
475 m above ground
0-6 km bulk shear
32 kt
0-1 km storm-relative helicity
20 m²/s²
0-3 km storm-relative helicity
52 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.3

Open this sounding in Storm Lab

The text

As transmitted.

367 
WHUS43 KGRB 022009
CFWGRB

Lakeshore Hazard Message
National Weather Service Green Bay WI
309 PM CDT Sun Aug 2 2020

WIZ022-040-050-030415-
/O.NEW.KGRB.LS.Y.0008.200803T0000Z-200804T0600Z/
/O.NEW.KGRB.BH.S.0006.200803T0000Z-200804T0600Z/
Door-Kewaunee-Manitowoc-
309 PM CDT Sun Aug 2 2020

...LAKESHORE FLOOD ADVISORY IN EFFECT FROM 7 PM THIS EVENING TO
1 AM CDT TUESDAY...
...BEACH HAZARDS STATEMENT IN EFFECT FROM 7 PM CDT THIS EVENING
THROUGH LATE MONDAY NIGHT...

* WHAT...For the Lakeshore Flood Advisory, minor lakeshore
  flooding expected. For the Beach Hazards Statement, dangerous
  swimming conditions are expected due to an increase risk of
  rip currents. 

* WHERE...Door, Kewaunee and Manitowoc Counties.

* WHEN...For the Lakeshore Flood Advisory, from 7 PM this 
  evening to 1 AM CDT Tuesday. For the Beach Hazards Statement, 
  from 7 PM CDT this evening through late Monday night.

* IMPACTS...Some water on low lying roads and property along the
  lakeshore. Dangerous rip currents are possible on Lake Michigan. 

* ADDITIONAL DETAILS...Greatest risk of lakeshore flooding tonight
  across Door County will be along the bay, then along both 
  coastlines on Monday. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Residents on or near the shore should take appropriate action to
protect property from rising water levels.

Remain out of the water to avoid hazardous swimming conditions.

&&

$$

WIZ039-030415-
/O.NEW.KGRB.LS.Y.0008.200803T0000Z-200804T0600Z/
Brown-
309 PM CDT Sun Aug 2 2020

...LAKESHORE FLOOD ADVISORY IN EFFECT FROM 7 PM THIS EVENING TO
1 AM CDT TUESDAY...

* WHAT...Minor lakeshore flooding expected near the bay, including
  the Green Bay boat launch. Minor rises on the East River are also
  possible, especially on Monday when winds turn northeast.

* WHERE...Brown County.

* WHEN...From 7 PM this evening to 1 AM CDT Tuesday.

* IMPACTS...Some water on low lying roads and property along the 
  lakeshore.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Residents on or near the shore should take appropriate action to
protect property from rising water levels.

&&

$$

WIZ074-030415-
/O.NEW.KGRB.LS.Y.0008.200803T1200Z-200804T0600Z/
Southern Oconto County-
309 PM CDT Sun Aug 2 2020

...LAKESHORE FLOOD ADVISORY IN EFFECT FROM 7 AM MONDAY TO 1 AM
CDT TUESDAY...

* WHAT...Minor lakeshore flooding expected along the bay, especially
  from Oconto north on County Highway Y.

* WHERE...Southern Oconto County County.

* WHEN...From 7 AM Monday to 1 AM CDT Tuesday.

* IMPACTS...Some water on low lying roads and property along the 
  lakeshore. High waters may surround homes along the bay, and
  may inundate portions of County Highway Y. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Residents on or near the shore should take appropriate action to
protect property from rising water levels.

&&

$$

Eckberg
5 follow-up statements
786 
WHUS43 KGRB 030315
CFWGRB

Lakeshore Hazard Message
National Weather Service Green Bay WI
1015 PM CDT Sun Aug 2 2020

WIZ022-040-050-031115-
/O.CON.KGRB.LS.Y.0008.000000T0000Z-200804T0600Z/
/O.CON.KGRB.BH.S.0006.000000T0000Z-200804T0600Z/
Door-Kewaunee-Manitowoc-
1015 PM CDT Sun Aug 2 2020

...LAKESHORE FLOOD ADVISORY REMAINS IN EFFECT UNTIL 1 AM CDT
TUESDAY...
...BEACH HAZARDS STATEMENT REMAINS IN EFFECT THROUGH LATE MONDAY
NIGHT...

* WHAT...For the Lakeshore Flood Advisory, minor lakeshore 
  flooding expected. For the Beach Hazards Statement, dangerous 
  swimming conditions are expected due to an increase risk of 
  rip currents.

* WHERE...Door, Kewaunee and Manitowoc Counties.

* WHEN...For the Lakeshore Flood Advisory, now through 1 AM CDT
  Tuesday. For the Beach Hazards Statement, now through late 
  Monday night.

* IMPACTS...Some water on low lying roads and property along the 
  lakeshore. Dangerous rip currents are possible on Lake 
  Michigan.

* ADDITIONAL DETAILS...Greatest risk of lakeshore flooding 
  tonight across Door County will be along the bay, then along 
  both coastlines on Monday.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Residents on or near the shore should take appropriate action to
protect property from rising water levels.

Remain out of the water to avoid hazardous swimming conditions.

&&

$$

WIZ039-031115-
/O.CON.KGRB.LS.Y.0008.000000T0000Z-200804T0600Z/
Brown-
1015 PM CDT Sun Aug 2 2020

...LAKESHORE FLOOD ADVISORY REMAINS IN EFFECT UNTIL 1 AM CDT
TUESDAY...

* WHAT...Minor lakeshore flooding expected near the bay, including
  the Green Bay boat launch, Bayshore Park, and roads along the
  bay in Suamico. Minor rises on the East River and Duck Creek are
  also possible, especially on Monday when winds turn northeast.

* WHERE...Brown County.

* WHEN...From now through 1 AM CDT Tuesday.

* IMPACTS...Some water on low lying roads and property along the 
  lakeshore.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Residents on or near the shore should take appropriate action to
protect property from rising water levels.

&&

$$

WIZ074-031115-
/O.CON.KGRB.LS.Y.0008.200803T1200Z-200804T0600Z/
Southern Oconto County-
1015 PM CDT Sun Aug 2 2020

...LAKESHORE FLOOD ADVISORY REMAINS IN EFFECT FROM 7 AM MONDAY TO
1 AM CDT TUESDAY...

* WHAT...Minor lakeshore flooding expected along the bay. 

* WHERE...Southern Oconto County.

* WHEN...From 7 AM Monday to 1 AM CDT Tuesday.

* IMPACTS...Some water on low lying roads and property along the
  lakeshore, and possibly along county roads S and Y. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Residents on or near the shore should take appropriate action to
protect property from rising water levels.

&&

$$
171 
WHUS43 KGRB 030928
CFWGRB

Lakeshore Hazard Message
National Weather Service Green Bay WI
428 AM CDT Mon Aug 3 2020

WIZ022-040-050-031600-
/O.CON.KGRB.LS.Y.0008.000000T0000Z-200804T0600Z/
/O.CON.KGRB.BH.S.0006.000000T0000Z-200804T0600Z/
Door-Kewaunee-Manitowoc-
428 AM CDT Mon Aug 3 2020

...LAKESHORE FLOOD ADVISORY REMAINS IN EFFECT UNTIL 1 AM CDT
TUESDAY...
...BEACH HAZARDS STATEMENT REMAINS IN EFFECT THROUGH LATE
TONIGHT...

* WHAT...For the Lakeshore Flood Advisory, minor lakeshore
  flooding and shoreline erosion. For the Beach Hazards Statement,
  dangerous currents at beaches on Lake Michigan.

* WHERE...Door, Manitowoc and Kewaunee Counties.

* WHEN...For the Lakeshore Flood Advisory, until 1 AM CDT 
  Tuesday. For the Beach Hazards Statement, through late tonight.

* IMPACTS...Wave action combined with high lake levels will
  increase the risk of erosion at the shoreline. Minor flooding of
  low-lying areas near the lakeshore is also possible. The waves
  may generate strong currents, which will pose a significant 
  hazard to anyone entering the water at lakeshore beaches.

* ADDITIONAL DETAILS...Minor flooding and erosion are possible
  along both the Bay of Green Bay and Lake Michigan shoreline
  areas of Door and Kewaunee counties.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Residents near the shoreline should take appropriate action to 
protect property from rising water levels.

Remain out of the water to avoid hazardous swimming conditions.

&&

$$

WIZ039-031600-
/O.CON.KGRB.LS.Y.0008.000000T0000Z-200804T0600Z/
Brown-
428 AM CDT Mon Aug 3 2020

...LAKESHORE FLOOD ADVISORY REMAINS IN EFFECT UNTIL 1 AM CDT
TUESDAY...

* WHAT...Flooding of low-lying areas near the bay is likely. Wave
  action combined with high water levels increases the risk of
  erosion at the shoreline.

* WHERE...Brown County.

* WHEN...Until 1 AM CDT Tuesday.

* IMPACTS...High water may result in the closure of some roads 
  near the shoreline.

* ADDITIONAL DETAILS...Locations that may experience flooding
  include the Green Bay boat launch, Bayshore Park, and roads
  along the bay in Suamico. Minor rises on the East River and Duck
  Creek are also possible.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Residents near the shoreline should take appropriate action to 
protect property from rising water levels.

&&

$$

WIZ074-031600-
/O.CON.KGRB.LS.Y.0008.200803T1200Z-200804T0600Z/
Southern Oconto County-
428 AM CDT Mon Aug 3 2020

...LAKESHORE FLOOD ADVISORY REMAINS IN EFFECT UNTIL 1 AM CDT
TUESDAY...

* WHAT...Flooding of low-lying areas near the bay is likely. Wave
  action combined with high water levels increases the risk of
  erosion at the shoreline.

* WHERE...Southern Oconto County County.

* WHEN...Until 1 AM CDT Tuesday.

* IMPACTS...High water may result in the classier of some roads
  near the shoreline.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Residents near the shoreline should take appropriate action to 
protect property from rising water levels.

&&

$$

JS
100 
WHUS43 KGRB 031510
CFWGRB

Lakeshore Hazard Message
National Weather Service Green Bay WI
1010 AM CDT Mon Aug 3 2020

WIZ022-040-050-032315-
/O.CON.KGRB.LS.Y.0008.000000T0000Z-200804T0600Z/
/O.CON.KGRB.BH.S.0006.000000T0000Z-200804T0600Z/
Door-Kewaunee-Manitowoc-
1010 AM CDT Mon Aug 3 2020

...LAKESHORE FLOOD ADVISORY REMAINS IN EFFECT UNTIL 1 AM CDT
TUESDAY...
...BEACH HAZARDS STATEMENT REMAINS IN EFFECT THROUGH LATE
TONIGHT...

* WHAT...For the Lakeshore Flood Advisory, minor lakeshore 
  flooding and shoreline erosion. For the Beach Hazards 
  Statement, dangerous currents at beaches on Lake Michigan.

* WHERE...Door, Manitowoc and Kewaunee Counties.

* WHEN...For the Lakeshore Flood Advisory, until 1 AM CDT 
  Tuesday. For the Beach Hazards Statement until 1 AM CDT
  Tuesday.

* IMPACTS...Wave action combined with high lake levels will 
  increase the risk of erosion at the shoreline. Minor flooding 
  of low-lying areas near the lakeshore is also possible. The 
  waves may generate strong currents, which will pose a 
  significant hazard to anyone entering the water at lakeshore 
  beaches.

* ADDITIONAL DETAILS...Minor flooding and erosion are possible 
  along both the Bay of Green Bay and Lake Michigan shoreline 
  areas of Door and Kewaunee counties.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Residents near the shoreline should take appropriate action to
protect property from rising water levels.

Remain out of the water to avoid hazardous swimming conditions.

&&

$$

WIZ039-074-032315-
/O.CON.KGRB.LS.Y.0008.000000T0000Z-200804T0600Z/
Brown-Southern Oconto County-
1010 AM CDT Mon Aug 3 2020

...LAKESHORE FLOOD ADVISORY REMAINS IN EFFECT UNTIL 1 AM CDT
TUESDAY...

* WHAT...Flooding of low-lying areas near the bay is likely. 
  Wave action combined with high water levels increases the risk 
  of erosion at the shoreline.

* WHERE...Brown County and Southern Oconto County.

* WHEN...Until 1 AM CDT Tuesday.

* IMPACTS...High water may result in the closure of some roads 
  near the shoreline.

* ADDITIONAL DETAILS...Locations that may experience flooding 
  include the Green Bay boat launch, Bayshore Park, and roads 
  along the bay in Suamico. Minor rises on the East River and 
  Duck Creek are also possible.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Residents near the shoreline should take appropriate action to
protect property from rising water levels.

&&

$$
Eckberg
763 
WHUS43 KGRB 031949
CFWGRB

Lakeshore Hazard Message
National Weather Service Green Bay WI
249 PM CDT Mon Aug 3 2020

WIZ022-040-050-040400-
/O.CON.KGRB.LS.Y.0008.000000T0000Z-200804T0600Z/
/O.CON.KGRB.BH.S.0006.000000T0000Z-200804T0600Z/
Door-Kewaunee-Manitowoc-
249 PM CDT Mon Aug 3 2020

...LAKESHORE FLOOD ADVISORY REMAINS IN EFFECT UNTIL 1 AM CDT
TUESDAY...
...BEACH HAZARDS STATEMENT REMAINS IN EFFECT UNTIL 1 AM CDT
TUESDAY...

* WHAT...For the Lakeshore Flood Advisory, minor lakeshore 
  flooding and shoreline erosion. For the Beach Hazards 
  Statement, dangerous currents at beaches on Lake Michigan.

* WHERE...Door, Manitowoc and Kewaunee Counties.

* WHEN...For the Lakeshore Flood Advisory, until 1 AM CDT 
  Tuesday. For the Beach Hazards Statement until 1 AM CDT 
  Tuesday.

* IMPACTS...Wave action combined with high lake levels continue to
  bring an increase the risk of erosion at the shoreline. Minor 
  flooding of low-lying areas near the lakeshore is also possible.
  The waves may generate strong currents, which will pose a 
  significant hazard to anyone entering the water at lakeshore 
  beaches.

* ADDITIONAL DETAILS...Minor flooding and erosion are possible
  along both the Bay of Green Bay and Lake Michigan shoreline
  areas of Door and Kewaunee counties.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Residents near the shoreline should take appropriate action to
protect property from rising water levels.

Remain out of the water to avoid hazardous swimming conditions.

&&

$$

WIZ039-074-040400-
/O.CON.KGRB.LS.Y.0008.000000T0000Z-200804T0600Z/
Brown-Southern Oconto County-
249 PM CDT Mon Aug 3 2020

...LAKESHORE FLOOD ADVISORY REMAINS IN EFFECT UNTIL 1 AM CDT
TUESDAY...

* WHAT...Flooding of low-lying areas near the bay is likely. 
  Wave action combined with high water levels increases the risk 
  of erosion at the shoreline.

* WHERE...Brown County and Southern Oconto County.

* WHEN...Until 1 AM CDT Tuesday.

* IMPACTS...High water may result in the closure of some roads 
  near the shoreline.

* ADDITIONAL DETAILS...Locations that may experience flooding 
  include the Green Bay boat launch, Bayshore Park, and roads 
  along the bay in Suamico. Minor rises on the East River and 
  Duck Creek are also possible.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Residents near the shoreline should take appropriate action to
protect property from rising water levels.

&&

$$

Eckberg
223 
WHUS43 KGRB 040155
CFWGRB

Lakeshore Hazard Message
National Weather Service Green Bay WI
855 PM CDT Mon Aug 3 2020

WIZ022-040-050-040300-
/O.CAN.KGRB.LS.Y.0008.000000T0000Z-200804T0600Z/
/O.CAN.KGRB.BH.S.0006.000000T0000Z-200804T0600Z/
Door-Kewaunee-Manitowoc-
855 PM CDT Mon Aug 3 2020

...LAKESHORE FLOOD ADVISORY IS CANCELLED...
...BEACH HAZARDS STATEMENT IS CANCELLED...

Winds and waves have diminished, and water levels are falling. The
Lakeshore Flood Advisory and Beach Hazards Statement are no longer
in effect.  

$$

WIZ039-074-040300-
/O.CAN.KGRB.LS.Y.0008.000000T0000Z-200804T0600Z/
Brown-Southern Oconto County-
855 PM CDT Mon Aug 3 2020

...LAKESHORE FLOOD ADVISORY IS CANCELLED...

Winds have diminished and water levels are falling, so the
Lakeshore Flood Advisory is no longer in effect.

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 2, 3:09 PM CDTLakeshore Flood AdvisoryGRBBrown, Door, Kewaunee, Manitowoc, Oconto30 hr

Nearby

Beach Hazards Statements in Wisconsin, 2020Every beach hazards statement in 2020

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.