Alert archive / Wisconsin / Beach Hazards Statements in 2023

Beach Hazards Statement 9, NWS Green Bay, WI

September 3, 2023Door County, Kewaunee County, Manitowoc County, Wisconsin

NWS Green Bay, WI issued this beach hazards statement at Sep 3, 2023, 4:02 AM CDT for Door County, Kewaunee County, Manitowoc County, Wisconsin. It took effect at Sep 3, 2023, 7:00 AM CDT. It was in force for 18 hr.

The area

The counties it named.

The facts

Issued
Sep 3, 2023, 4:02 AM CDT (09:02 UTC)
In effect from
Sep 3, 2023, 7:00 AM CDT
Expired
Sep 4, 2023, 1:00 AM CDT
In force
18 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 09:06 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 00:00Z, 9.0 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 00:00Z on 2023-09-03Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 279 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, Green Bay/Straub, WI at 00:00Z on 2023-09-03The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 333 square meters per square second.19395878Sfc1 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
279 J/kg
Mixed-layer CIN
-429 J/kg
Mixed-layer LCL
1970 m above ground
0-6 km bulk shear
46 kt
0-1 km storm-relative helicity
333 m²/s²
0-3 km storm-relative helicity
490 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

078 
WHUS43 KGRB 030902
CFWGRB

Coastal Hazard Message
National Weather Service Green Bay WI
402 AM CDT Sun Sep 3 2023

WIZ040-050-031715-
/O.NEW.KGRB.BH.S.0009.230903T1800Z-230904T0300Z/
Kewaunee-Manitowoc-
402 AM CDT Sun Sep 3 2023

...BEACH HAZARDS STATEMENT IN EFFECT FROM 1 PM CDT THIS AFTERNOON
THROUGH THIS EVENING...

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

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

* WHEN...From 1 PM CDT this afternoon through this evening.

* 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... 
  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.

&&

$$

WIZ022-031715-
/O.NEW.KGRB.BH.S.0009.230903T1200Z-230904T0600Z/
Door-
402 AM CDT Sun Sep 3 2023

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

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

* WHERE...Beaches along Lake Michigan in Door County.

* WHEN...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.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Remain out of the water to avoid hazardous swimming conditions.

&&

$$
3 follow-up statements
427 
WHUS43 KGRB 031756
CFWGRB

Coastal Hazard Message
National Weather Service Green Bay WI
1256 PM CDT Sun Sep 3 2023

WIZ040-050-040200-
/O.CON.KGRB.BH.S.0009.230903T1800Z-230904T0300Z/
Kewaunee-Manitowoc-
1256 PM CDT Sun Sep 3 2023

...BEACH HAZARDS STATEMENT REMAINS IN EFFECT UNTIL 10 PM CDT THIS
EVENING...

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

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

* WHEN...Until 10 PM CDT this evening.

* 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... 
  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.

&&

$$

WIZ022-040200-
/O.CON.KGRB.BH.S.0009.000000T0000Z-230904T0600Z/
Door-
1256 PM CDT Sun Sep 3 2023

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

* WHAT...High waves and dangerous currents.

* WHERE...Beaches along Lake Michigan in Door County.

* WHEN...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.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Remain out of the water to avoid hazardous swimming conditions.

&&

$$
727 
WHUS43 KGRB 032019
CFWGRB

Coastal Hazard Message
National Weather Service Green Bay WI
319 PM CDT Sun Sep 3 2023

WIZ040-050-040300-
/O.CON.KGRB.BH.S.0009.000000T0000Z-230904T0300Z/
Kewaunee-Manitowoc-
319 PM CDT Sun Sep 3 2023

...BEACH HAZARDS STATEMENT REMAINS IN EFFECT UNTIL 10 PM CDT THIS
EVENING...

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

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

* WHEN...Until 10 PM CDT this evening.

* 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... 
  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.

&&

$$

WIZ022-040430-
/O.CON.KGRB.BH.S.0009.000000T0000Z-230904T0600Z/
Door-
319 PM CDT Sun Sep 3 2023

...BEACH HAZARDS STATEMENT REMAINS IN EFFECT UNTIL 1 AM CDT
MONDAY...

* WHAT...High waves and dangerous currents.

* WHERE...Beaches along Lake Michigan in Door County.

* WHEN...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.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Remain out of the water to avoid hazardous swimming conditions.

&&

$$
217 
WHUS43 KGRB 040304 AAA
CFWGRB

Coastal Hazard Message...UPDATED
National Weather Service Green Bay WI
1004 PM CDT Sun Sep 3 2023

WIZ040-050-040415-
/O.EXP.KGRB.BH.S.0009.000000T0000Z-230904T0300Z/
Kewaunee-Manitowoc-
1004 PM CDT Sun Sep 3 2023

...BEACH HAZARDS STATEMENT HAS EXPIRED...

Waves have subsided.

$$

WIZ022-040600-
/O.CON.KGRB.BH.S.0009.000000T0000Z-230904T0600Z/
Door-
1004 PM CDT Sun Sep 3 2023

...BEACH HAZARDS STATEMENT REMAINS IN EFFECT UNTIL 1 AM CDT
MONDAY...

* WHAT...High waves and dangerous currents.

* WHERE...Beaches along Lake Michigan in Door County.

* WHEN...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.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Remain out of the water to avoid hazardous swimming conditions.

&&

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Sep 3, 3:42 AM CDTRed Flag WarningGRBPortage, Waupaca, Waushara, Wood15 hr
Sep 3, 4:01 AM CDTSmall Craft AdvisoryGRB21 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.