Alert archive / Wisconsin / Beach Hazards Statements in 2023

Beach Hazards Statement 8, NWS Green Bay, WI

August 31, 2023Door County, Kewaunee County, Manitowoc County, Wisconsin

NWS Green Bay, WI issued this beach hazards statement at Aug 31, 2023, 2:14 PM CDT for Door County, Kewaunee County, Manitowoc County, Wisconsin. It took effect at Sep 1, 2023, 1:00 PM CDT. It was in force for 16 hr.

The area

The counties it named.

The facts

Issued
Aug 31, 2023, 2:14 PM CDT (19:14 UTC)
In effect from
Sep 1, 2023, 1:00 PM CDT
Expired
Sep 2, 2023, 4:43 AM CDT
In force
16 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 19:13 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

Green Bay/Straub, WI (KGRB), launched 12:00Z, 7.2 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 2023-08-31Temperature 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 2023-08-31The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -11 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1120 m above ground
0-6 km bulk shear
7 kt
0-1 km storm-relative helicity
-11 m²/s²
0-3 km storm-relative helicity
10 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

972 
WHUS43 KGRB 311914
CFWGRB

Coastal Hazard Message
National Weather Service Green Bay WI
214 PM CDT Thu Aug 31 2023

WIZ022-040-050-011015-
/O.NEW.KGRB.BH.S.0008.230901T1800Z-230902T1200Z/
Door-Kewaunee-Manitowoc-
214 PM CDT Thu Aug 31 2023

...BEACH HAZARDS STATEMENT IN EFFECT FROM FRIDAY AFTERNOON
THROUGH EARLY SATURDAY MORNING...

* WHAT...High waves and dangerous currents expected.

* WHERE...Beaches along Lake Michigan in Door, Kewaunee and 
  Manitowoc Counties.

* WHEN...From Friday afternoon through early Saturday morning.

* IMPACTS...Dangerous swimming conditions are expected. Strong 
  currents can pull swimmers into deeper water and high waves 
  can sweep people off piers.

* ADDITIONAL DETAILS...Several beaches that will be most 
  susceptible to the dangerous swimming conditions include... 
  Rock Island State Beach, Baileys Harbor beaches and Whitefish 
  Dunes Beach in Door County. Cresent Beach and City of Kewaunee 
  Beach in Kewaunee County. Point Beach, Neshotah Beach and Red 
  Arrow Beach in Manitowoc County.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Remain out of the water to avoid hazardous swimming conditions.

&&

$$

AK
6 follow-up statements
570 
WHUS43 KGRB 010225
CFWGRB

Coastal Hazard Message
National Weather Service Green Bay WI
925 PM CDT Thu Aug 31 2023

WIZ022-040-050-011030-
/O.CON.KGRB.BH.S.0008.230901T1800Z-230902T1200Z/
Door-Kewaunee-Manitowoc-
925 PM CDT Thu Aug 31 2023

...BEACH HAZARDS STATEMENT REMAINS IN EFFECT FROM FRIDAY
AFTERNOON THROUGH SATURDAY MORNING...

* WHAT...High waves and dangerous currents expected.

* WHERE...Beaches along Lake Michigan in Door, Kewaunee and 
  Manitowoc Counties.

* WHEN...From Friday afternoon through early Saturday morning.

* IMPACTS...Dangerous swimming conditions are expected. Strong 
  currents can pull swimmers into deeper water and high waves 
  can sweep people off piers.

* ADDITIONAL DETAILS...Several beaches that will be most 
  susceptible to the dangerous swimming conditions include... 
  Rock Island State Beach, Baileys Harbor beaches and Whitefish 
  Dunes Beach in Door County. Cresent Beach and City of Kewaunee 
  Beach in Kewaunee County. Point Beach, Neshotah Beach and Red 
  Arrow Beach in Manitowoc County.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Remain out of the water to avoid hazardous swimming conditions.

&&

$$
071 
WHUS43 KGRB 010903
CFWGRB

Coastal Hazard Message
National Weather Service Green Bay WI
403 AM CDT Fri Sep 1 2023

WIZ022-040-050-011715-
/O.CON.KGRB.BH.S.0008.230901T1800Z-230902T1200Z/
Door-Kewaunee-Manitowoc-
403 AM CDT Fri Sep 1 2023

...BEACH HAZARDS STATEMENT REMAINS IN EFFECT FROM 1 PM CDT THIS
AFTERNOON THROUGH SATURDAY MORNING...

* WHAT...High waves and dangerous currents expected.

* WHERE...Beaches along Lake Michigan in Door, Kewaunee and 
  Manitowoc Counties.

* WHEN...From 1 PM CDT this afternoon through Saturday morning.

* IMPACTS...Dangerous swimming conditions are expected. Strong 
  currents can pull swimmers into deeper water and high waves 
  can sweep people off piers.

* ADDITIONAL DETAILS...Several beaches that will be most 
  susceptible to the dangerous swimming conditions include... 
  Rock Island State Beach, Baileys Harbor beaches and Whitefish 
  Dunes Beach in Door County. Cresent Beach and City of Kewaunee 
  Beach in Kewaunee County. Point Beach, Neshotah Beach and Red 
  Arrow Beach in Manitowoc County.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Remain out of the water to avoid hazardous swimming conditions.

&&

$$
592 
WHUS43 KGRB 011731
CFWGRB

Coastal Hazard Message
National Weather Service Green Bay WI
1231 PM CDT Fri Sep 1 2023

WIZ022-040-050-020145-
/O.CON.KGRB.BH.S.0008.230901T1800Z-230902T1200Z/
Door-Kewaunee-Manitowoc-
1231 PM CDT Fri Sep 1 2023

...BEACH HAZARDS STATEMENT REMAINS IN EFFECT THROUGH SATURDAY
MORNING...

* WHAT...High waves and dangerous currents expected.

* WHERE...Beaches along Lake Michigan in Door, Kewaunee and 
  Manitowoc Counties.

* WHEN...From 1 PM CDT this afternoon through 7 AM CDT Saturday.

* IMPACTS...Dangerous swimming conditions are expected. Strong 
  currents can pull swimmers into deeper water and high waves 
  can sweep people off piers.

* ADDITIONAL DETAILS...Several beaches that will be most 
  susceptible to the dangerous swimming conditions include... 
  Rock Island State Beach, Baileys Harbor beaches and Whitefish 
  Dunes Beach in Door County. Cresent Beach and City of Kewaunee 
  Beach in Kewaunee County. Point Beach, Neshotah Beach and Red 
  Arrow Beach in Manitowoc County.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Remain out of the water to avoid hazardous swimming conditions.

&&

$$

mpc
444 
WHUS43 KGRB 012304
CFWGRB

Coastal Hazard Message
National Weather Service Green Bay WI
604 PM CDT Fri Sep 1 2023

WIZ022-040-050-020715-
/O.CON.KGRB.BH.S.0008.000000T0000Z-230902T1200Z/
Door-Kewaunee-Manitowoc-
604 PM CDT Fri Sep 1 2023

...BEACH HAZARDS STATEMENT REMAINS IN EFFECT THROUGH SATURDAY
MORNING...

* WHAT...High waves and dangerous currents expected.

* WHERE...Beaches along Lake Michigan in Door, Kewaunee and 
  Manitowoc Counties.

* WHEN...Thru 7 AM CDT Saturday.

* IMPACTS...Dangerous swimming conditions are expected. Strong 
  currents can pull swimmers into deeper water and high waves 
  can sweep people off piers.

* ADDITIONAL DETAILS...Several beaches that will be most 
  susceptible to the dangerous swimming conditions include... 
  Rock Island State Beach, Baileys Harbor beaches and Whitefish 
  Dunes Beach in Door County. Cresent Beach and City of Kewaunee 
  Beach in Kewaunee County. Point Beach, Neshotah Beach and Red 
  Arrow Beach in Manitowoc County.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Remain out of the water to avoid hazardous swimming conditions.

&&

$$
711 
WHUS43 KGRB 020228
CFWGRB

Coastal Hazard Message
National Weather Service Green Bay WI
928 PM CDT Fri Sep 1 2023

WIZ022-040-050-021030-
/O.CON.KGRB.BH.S.0008.000000T0000Z-230902T1200Z/
Door-Kewaunee-Manitowoc-
928 PM CDT Fri Sep 1 2023

...BEACH HAZARDS STATEMENT REMAINS IN EFFECT UNTIL 7 AM CDT
SATURDAY...

* WHAT...High waves and dangerous currents expected.

* WHERE...Beaches along Lake Michigan in Door, Kewaunee and 
  Manitowoc Counties.

* WHEN...Thru 7 AM CDT Saturday.

* IMPACTS...Dangerous swimming conditions are expected. Strong 
  currents can pull swimmers into deeper water and high waves 
  can sweep people off piers.

* ADDITIONAL DETAILS...Several beaches that will be most 
  susceptible to the dangerous swimming conditions include... 
  Rock Island State Beach, Baileys Harbor beaches and Whitefish 
  Dunes Beach in Door County. Cresent Beach and City of Kewaunee 
  Beach in Kewaunee County. Point Beach, Neshotah Beach and Red 
  Arrow Beach in Manitowoc County.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Remain out of the water to avoid hazardous swimming conditions.

&&

$$
017 
WHUS43 KGRB 020943
CFWGRB

Coastal Hazard Message
National Weather Service Green Bay WI
443 AM CDT Sat Sep 2 2023

WIZ022-040-050-021045-
/O.CAN.KGRB.BH.S.0008.000000T0000Z-230902T1200Z/
Door-Kewaunee-Manitowoc-
443 AM CDT Sat Sep 2 2023

...BEACH HAZARDS STATEMENT IS CANCELLED...

The swimming risk will continue to subside early this morning as 
waves continue to diminish.

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 31, 2:37 PM CDTSmall Craft AdvisoryGRB38 hr

Nearby

Beach Hazards Statements in Wisconsin, 2023Every beach hazards statement in 2023

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.