Alert archive / Wisconsin / Beach Hazards Statements in 2023

Beach Hazards Statement 4, NWS Green Bay, WI

August 18, 2023Door County, Kewaunee County, Manitowoc County, Wisconsin

NWS Green Bay, WI issued this beach hazards statement at Aug 18, 2023, 2:30 PM CDT for Door County, Kewaunee County, Manitowoc County, Wisconsin. It took effect at Aug 19, 2023, 12:00 PM CDT. It was in force for 12 hr.

The area

The counties it named.

The facts

Issued
Aug 18, 2023, 2:30 PM CDT (19:30 UTC)
In effect from
Aug 19, 2023, 12:00 PM CDT
Expired
Aug 20, 2023, 12:00 AM CDT
In force
12 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 19:32 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, 7.5 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 2023-08-18Temperature 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 2023-08-18The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 51 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
1737 m above ground
0-6 km bulk shear
52 kt
0-1 km storm-relative helicity
51 m²/s²
0-3 km storm-relative helicity
123 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

997 
WHUS43 KGRB 181930
CFWGRB

Coastal Hazard Message
National Weather Service Green Bay WI
230 PM CDT Fri Aug 18 2023

WIZ022-040-050-190930-
/O.NEW.KGRB.BH.S.0004.230819T1800Z-230820T0900Z/
Door-Kewaunee-Manitowoc-
230 PM CDT Fri Aug 18 2023

...BEACH HAZARDS STATEMENT IN EFFECT FROM SATURDAY AFTERNOON
THROUGH LATE SATURDAY NIGHT...

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

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

* WHEN...From Saturday afternoon through late Saturday night.

* 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.

&&

$$
Eckberg
5 follow-up statements
890 
WHUS43 KGRB 190318
CFWGRB

Coastal Hazard Message
National Weather Service Green Bay WI
1018 PM CDT Fri Aug 18 2023

WIZ022-040-050-191130-
/O.CON.KGRB.BH.S.0004.230819T1800Z-230820T0900Z/
Door-Kewaunee-Manitowoc-
1018 PM CDT Fri Aug 18 2023

...BEACH HAZARDS STATEMENT REMAINS IN EFFECT FROM SATURDAY
AFTERNOON THROUGH LATE SATURDAY NIGHT...

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

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

* WHEN...From Saturday afternoon through late Saturday night.

* 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.

&&

$$
805 
WHUS43 KGRB 190845
CFWGRB

Coastal Hazard Message
National Weather Service Green Bay WI
345 AM CDT Sat Aug 19 2023

WIZ022-040-050-191645-
/O.EXT.KGRB.BH.S.0004.230819T1700Z-230820T0900Z/
Door-Kewaunee-Manitowoc-
345 AM CDT Sat Aug 19 2023

...BEACH HAZARDS STATEMENT NOW IN EFFECT FROM NOON CDT TODAY
THROUGH LATE TONIGHT...

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

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

* WHEN...From noon CDT today through late tonight.

* 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.

&&

$$

Kurimski
859 
WHUS43 KGRB 191617
CFWGRB

Coastal Hazard Message
National Weather Service Green Bay WI
1117 AM CDT Sat Aug 19 2023

WIZ022-040-050-192200-
/O.CON.KGRB.BH.S.0004.230819T1700Z-230820T0900Z/
Door-Kewaunee-Manitowoc-
1117 AM CDT Sat Aug 19 2023

...BEACH HAZARDS STATEMENT REMAINS IN EFFECT THROUGH LATE
TONIGHT...

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

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

* WHEN...From noon CDT today through late tonight.

* 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
705 
WHUS43 KGRB 191950
CFWGRB

Coastal Hazard Message
National Weather Service Green Bay WI
250 PM CDT Sat Aug 19 2023

WIZ022-040-050-200500-
/O.EXT.KGRB.BH.S.0004.000000T0000Z-230820T0500Z/
Door-Kewaunee-Manitowoc-
250 PM CDT Sat Aug 19 2023

...BEACH HAZARDS STATEMENT NOW IN EFFECT UNTIL MIDNIGHT CDT
TONIGHT...

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

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

* WHEN...Until midnight CDT tonight.

* 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
246 
WHUS43 KGRB 200454
CFWGRB

Coastal Hazard Message
National Weather Service Green Bay WI
1154 PM CDT Sat Aug 19 2023

WIZ022-040-050-200600-
/O.EXP.KGRB.BH.S.0004.000000T0000Z-230820T0500Z/
Door-Kewaunee-Manitowoc-
1154 PM CDT Sat Aug 19 2023

...BEACH HAZARDS STATEMENT WILL EXPIRE AT MIDNIGHT CDT TONIGHT...

The waves have subsided below four feet; therefore, the risk of 
rip currents has diminished. 

$$

Kurimski

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 18, 2:44 PM CDTSmall Craft AdvisoryGRB33 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.