Alert archive / Wisconsin / Beach Hazards Statements in 2020

Beach Hazards Statement 10, NWS Green Bay, WI

September 7, 2020Door County, Kewaunee County, Manitowoc County, Wisconsin

NWS Green Bay, WI issued this beach hazards statement at Sep 7, 2020, 3:08 PM CDT for Door County, Kewaunee County, Manitowoc County, Wisconsin. It took effect at Sep 8, 2020, 6:00 AM CDT. It was in force for 33 hr.

The area

The counties it named.

The facts

Issued
Sep 7, 2020, 3:08 PM CDT (20:08 UTC)
In effect from
Sep 8, 2020, 6:00 AM CDT
Expired
Sep 9, 2020, 3:15 PM CDT
In force
33 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 20:07 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, 8.1 hours before the alert went out and 46 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 2020-09-07Temperature 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°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 2020-09-07The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -78 square meters per square second.1939587897Sfc1 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
1461 m above ground
0-6 km bulk shear
56 kt
0-1 km storm-relative helicity
-78 m²/s²
0-3 km storm-relative helicity
17 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

952 
WHUS43 KGRB 072008
CFWGRB

Lakeshore Hazard Message
National Weather Service Green Bay WI
308 PM CDT Mon Sep 7 2020

WIZ039-074-080415-
/O.NEW.KGRB.LS.Y.0010.200908T0500Z-200910T0500Z/
Brown-Southern Oconto County-
308 PM CDT Mon Sep 7 2020

...LAKESHORE FLOOD ADVISORY IN EFFECT FROM MIDNIGHT TONIGHT TO
MIDNIGHT CDT WEDNESDAY NIGHT...

* WHAT...Shoreline erosion and minor lakeshore flooding are
  possible along the shoreline areas of the Bay of Green Bay due
  to persistent and gusty northeast winds.

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

* WHEN...From midnight tonight to midnight CDT Wednesday night.

* IMPACTS...Possible shoreline erosion and minor flooding 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.

&&

$$

WIZ022-040-050-080415-
/O.NEW.KGRB.BH.S.0010.200908T1100Z-200909T2100Z/
Door-Kewaunee-Manitowoc-
308 PM CDT Mon Sep 7 2020

...BEACH HAZARDS STATEMENT IN EFFECT FROM TUESDAY MORNING THROUGH
WEDNESDAY AFTERNOON...

* WHAT...Large waves along Lake Michigan beaches will result in
  hazardous swimming conditions and possible rip currents. 

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

* WHEN...From Tuesday morning through Wednesday afternoon.

* IMPACTS...Large waves will create strong currents and dangerous
  swimming conditions.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Remain out of the water to avoid hazardous swimming conditions.

&&

$$
9 follow-up statements
324 
WHUS43 KGRB 080225
CFWGRB

Lakeshore Hazard Message
National Weather Service Green Bay WI
925 PM CDT Mon Sep 7 2020

WIZ039-074-081030-
/O.CON.KGRB.LS.Y.0010.200908T0500Z-200910T0500Z/
Brown-Southern Oconto County-
925 PM CDT Mon Sep 7 2020

...LAKESHORE FLOOD ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT CDT
WEDNESDAY NIGHT...

* WHAT...Shoreline erosion and minor lakeshore flooding are 
  possible along the shoreline areas of the Bay of Green Bay due 
  to persistent and gusty northeast winds.

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

* WHEN...From midnight tonight to midnight CDT Wednesday night.

* IMPACTS...Possible shoreline erosion and minor flooding 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.

&&

$$

WIZ022-040-050-081030-
/O.CON.KGRB.BH.S.0010.200908T1100Z-200909T2100Z/
Door-Kewaunee-Manitowoc-
925 PM CDT Mon Sep 7 2020

...BEACH HAZARDS STATEMENT REMAINS IN EFFECT FROM 6 AM CDT
TUESDAY THROUGH WEDNESDAY AFTERNOON...

* WHAT...Large waves along Lake Michigan beaches will result in 
  hazardous swimming conditions and possible rip currents.

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

* WHEN...From Tuesday morning through Wednesday afternoon.

* IMPACTS...Large waves will create strong currents and 
  dangerous swimming conditions.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Remain out of the water to avoid hazardous swimming conditions.

&&

$$
338 
WHUS43 KGRB 080837
CFWGRB

Lakeshore Hazard Message
National Weather Service Green Bay WI
337 AM CDT Tue Sep 8 2020

WIZ039-074-082000-
/O.CON.KGRB.LS.Y.0010.000000T0000Z-200910T0500Z/
Brown-Southern Oconto County-
337 AM CDT Tue Sep 8 2020

...LAKESHORE FLOOD ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT CDT
WEDNESDAY NIGHT...

* WHAT...Shoreline erosion and minor lakeshore flooding are 
  possible along the shoreline areas of the Bay of Green Bay due 
  to persistent and gusty northeast winds.

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

* WHEN...Until midnight CDT Wednesday night.

* IMPACTS...Possible shoreline erosion and minor flooding 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.

&&

$$

WIZ022-040-050-082000-
/O.CON.KGRB.BH.S.0010.200908T1100Z-200909T2100Z/
Door-Kewaunee-Manitowoc-
337 AM CDT Tue Sep 8 2020

...BEACH HAZARDS STATEMENT REMAINS IN EFFECT THROUGH WEDNESDAY
AFTERNOON...

* WHAT...Large waves along Lake Michigan beaches will result in 
  hazardous swimming conditions and possible rip currents.

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

* WHEN...Through Wednesday afternoon.

* IMPACTS...Large waves will create strong currents and dangerous
  swimming conditions.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Remain out of the water to avoid hazardous swimming conditions.

&&

$$
022 
WHUS43 KGRB 081519
CFWGRB

Lakeshore Hazard Message
National Weather Service Green Bay WI
1019 AM CDT Tue Sep 8 2020

WIZ039-074-082330-
/O.CON.KGRB.LS.Y.0010.000000T0000Z-200910T0500Z/
Brown-Southern Oconto County-
1019 AM CDT Tue Sep 8 2020

...LAKESHORE FLOOD ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT CDT
WEDNESDAY NIGHT...

* WHAT...Shoreline erosion and minor lakeshore flooding are 
  possible along the shoreline areas of the Bay of Green Bay due 
  to persistent and gusty northeast winds.

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

* WHEN...Until midnight CDT Wednesday night.

* IMPACTS...Possible shoreline erosion and minor flooding 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.

&&

$$

WIZ022-040-050-082330-
/O.CON.KGRB.BH.S.0010.000000T0000Z-200909T2100Z/
Door-Kewaunee-Manitowoc-
1019 AM CDT Tue Sep 8 2020

...BEACH HAZARDS STATEMENT REMAINS IN EFFECT THROUGH WEDNESDAY
AFTERNOON...

* WHAT...Large waves along Lake Michigan beaches will result in 
  hazardous swimming conditions and possible rip currents.

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

* WHEN...Through Wednesday afternoon.

* IMPACTS...Large waves will create strong currents and 
  dangerous swimming conditions.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Remain out of the water to avoid hazardous swimming conditions.

&&

$$
910 
WHUS43 KGRB 081939
CFWGRB

Lakeshore Hazard Message
National Weather Service Green Bay WI
239 PM CDT Tue Sep 8 2020

WIZ039-074-090400-
/O.CON.KGRB.LS.Y.0010.000000T0000Z-200910T0500Z/
Brown-Southern Oconto County-
239 PM CDT Tue Sep 8 2020

...LAKESHORE FLOOD ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT CDT
WEDNESDAY NIGHT...

* WHAT...Shoreline erosion and minor lakeshore flooding are 
  possible along the shoreline areas of the Bay of Green Bay due 
  to persistent and gusty northeast winds.

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

* WHEN...Until midnight CDT Wednesday night.

* IMPACTS...Possible shoreline erosion and minor flooding 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.

&&

$$

WIZ022-040-050-090400-
/O.CON.KGRB.BH.S.0010.000000T0000Z-200909T2100Z/
Door-Kewaunee-Manitowoc-
239 PM CDT Tue Sep 8 2020

...BEACH HAZARDS STATEMENT REMAINS IN EFFECT THROUGH WEDNESDAY
AFTERNOON...

* WHAT...Large waves along Lake Michigan beaches will result in 
  hazardous swimming conditions and possible rip currents.

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

* WHEN...Through Wednesday afternoon.

* IMPACTS...Large waves will create strong currents and dangerous
  swimming conditions.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Remain out of the water to avoid hazardous swimming conditions.

&&

$$

Kurimski
239 
WHUS43 KGRB 090153
CFWGRB

Lakeshore Hazard Message
National Weather Service Green Bay WI
853 PM CDT Tue Sep 8 2020

WIZ039-074-091000-
/O.CON.KGRB.LS.Y.0010.000000T0000Z-200910T0500Z/
Brown-Southern Oconto County-
853 PM CDT Tue Sep 8 2020

...LAKESHORE FLOOD ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT CDT
WEDNESDAY NIGHT...

* WHAT...Shoreline erosion and minor lakeshore flooding are
  possible along the shoreline areas of the Bay of Green Bay due
  to persistent northeast winds. 

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

* WHEN...Until midnight CDT Wednesday night. The most likely
  period for lakeshore flooding would be between daybreak and noon
  Wednesday.
 
* IMPACTS...Possible shoreline erosion and minor flooding 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.

&&

$$

WIZ022-040-050-091000-
/O.CON.KGRB.BH.S.0010.000000T0000Z-200909T2100Z/
Door-Kewaunee-Manitowoc-
853 PM CDT Tue Sep 8 2020

...BEACH HAZARDS STATEMENT REMAINS IN EFFECT THROUGH WEDNESDAY
AFTERNOON...

* WHAT...Large waves along Lake Michigan beaches will result in 
  hazardous swimming conditions and possible rip currents.

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

* WHEN...Through Wednesday afternoon.

* IMPACTS...Large waves will create strong currents and 
  dangerous swimming conditions.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Remain out of the water to avoid hazardous swimming conditions.

&&

$$
277 
WHUS43 KGRB 090918
CFWGRB

Lakeshore Hazard Message
National Weather Service Green Bay WI
418 AM CDT Wed Sep 9 2020

WIZ022-091030-
/O.CAN.KGRB.BH.S.0010.000000T0000Z-200909T2100Z/
Door-
418 AM CDT Wed Sep 9 2020

...BEACH HAZARDS STATEMENT IS CANCELLED...

Winds and waves are expected to diminish throughout the day;
however, dangerous currents may linger near piers and river
outlets.

$$

WIZ039-074-091730-
/O.CON.KGRB.LS.Y.0010.000000T0000Z-200910T0500Z/
Brown-Southern Oconto County-
418 AM CDT Wed Sep 9 2020

...LAKESHORE FLOOD ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT CDT
TONIGHT...

* WHAT...Shoreline erosion and minor lakeshore flooding are 
  possible along the shoreline areas of the Bay of Green Bay due 
  to persistent northeast winds.

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

* WHEN...Until midnight CDT tonight.

* IMPACTS...Possible shoreline erosion and minor flooding 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.

&&

$$

WIZ040-050-091730-
/O.CON.KGRB.BH.S.0010.000000T0000Z-200909T2100Z/
Kewaunee-Manitowoc-
418 AM CDT Wed Sep 9 2020

...BEACH HAZARDS STATEMENT REMAINS IN EFFECT THROUGH THIS
AFTERNOON...

* WHAT...Large waves along Lake Michigan beaches will result in 
  hazardous swimming conditions and possible rip currents.

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

* WHEN...Through this afternoon.

* IMPACTS...Large waves will create strong currents and 
  dangerous swimming conditions.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Remain out of the water to avoid hazardous swimming conditions.

&&

$$
614 
WHUS43 KGRB 091524
CFWGRB

Lakeshore Hazard Message
National Weather Service Green Bay WI
1024 AM CDT Wed Sep 9 2020

WIZ039-074-092330-
/O.CON.KGRB.LS.Y.0010.000000T0000Z-200910T0500Z/
Brown-Southern Oconto County-
1024 AM CDT Wed Sep 9 2020

...LAKESHORE FLOOD ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT CDT
TONIGHT...

* WHAT...Shoreline erosion and minor lakeshore flooding are 
  possible along the shoreline areas of the Bay of Green Bay due 
  to persistent northeast winds.

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

* WHEN...Until midnight CDT tonight.

* IMPACTS...Possible shoreline erosion and minor flooding 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.

&&

$$

WIZ040-050-092100-
/O.CON.KGRB.BH.S.0010.000000T0000Z-200909T2100Z/
Kewaunee-Manitowoc-
1024 AM CDT Wed Sep 9 2020

...BEACH HAZARDS STATEMENT REMAINS IN EFFECT UNTIL 4 PM CDT THIS
AFTERNOON...

* WHAT...Large waves along Lake Michigan beaches will result in 
  hazardous swimming conditions and possible rip currents.

* WHERE...Manitowoc and Kewaunee Counties.

* WHEN...Through this afternoon.

* IMPACTS...Large waves will create strong currents and 
  dangerous swimming conditions.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Remain out of the water to avoid hazardous swimming conditions.

&&

$$
596 
WHUS43 KGRB 091715
CFWGRB

Lakeshore Hazard Message
National Weather Service Green Bay WI
1215 PM CDT Wed Sep 9 2020

WIZ039-074-092030-
/O.CON.KGRB.LS.Y.0010.000000T0000Z-200910T0500Z/
Brown-Southern Oconto County-
1215 PM CDT Wed Sep 9 2020

...LAKESHORE FLOOD ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT CDT
TONIGHT...

* WHAT...Shoreline erosion and minor lakeshore flooding are 
  possible along the shoreline areas of the Bay of Green Bay due 
  to persistent northeast winds.

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

* WHEN...Until midnight CDT tonight.

* IMPACTS...Possible shoreline erosion and minor flooding 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.

&&

$$

WIZ040-050-092030-
/O.CON.KGRB.BH.S.0010.000000T0000Z-200909T2100Z/
Kewaunee-Manitowoc-
1215 PM CDT Wed Sep 9 2020

...BEACH HAZARDS STATEMENT REMAINS IN EFFECT UNTIL 4 PM CDT THIS
AFTERNOON...

* WHAT...Large waves along Lake Michigan beaches will result in 
  hazardous swimming conditions and possible rip currents.

* WHERE...Manitowoc and Kewaunee Counties.

* WHEN...Through this afternoon.

* IMPACTS...Large waves will create strong currents and 
  dangerous swimming conditions.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Remain out of the water to avoid hazardous swimming conditions.

&&

$$
359 
WHUS43 KGRB 092015
CFWGRB

Lakeshore Hazard Message
National Weather Service Green Bay WI
315 PM CDT Wed Sep 9 2020

WIZ039-074-092115-
/O.CAN.KGRB.LS.Y.0010.000000T0000Z-200910T0500Z/
Brown-Southern Oconto County-
315 PM CDT Wed Sep 9 2020

...LAKESHORE FLOOD ADVISORY IS CANCELLED...

Winds have subsided, thus the risk of flooding has diminished.

$$

WIZ040-050-092115-
/O.CAN.KGRB.BH.S.0010.000000T0000Z-200909T2100Z/
Kewaunee-Manitowoc-
315 PM CDT Wed Sep 9 2020

...BEACH HAZARDS STATEMENT IS CANCELLED...

Northerly winds will continue to keep the highest waves
offshore Manitowoc and Kewaunee Counties, thus the Beach 
Hazards Statement has been cancelled. 

$$
Eckberg

The office that day

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

IssuedProductOfficeCountiesLasted
Sep 7, 3:08 PM CDTLakeshore Flood AdvisoryGRBBrown, Oconto48 hr
Sep 7, 3:31 PM CDTSmall Craft AdvisoryGRB54 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.