Alert archive / Wisconsin / Beach Hazards Statements in 2021

Beach Hazards Statement 14, NWS Green Bay, WI

September 20, 2021Door County, Kewaunee County, Manitowoc County, Wisconsin

NWS Green Bay, WI issued this beach hazards statement at Sep 20, 2021, 3:15 AM CDT for Door County, Kewaunee County, Manitowoc County, Wisconsin. It took effect at Sep 20, 2021, 10:00 AM CDT. It was in force for 27 hr.

The area

The counties it named.

The facts

Issued
Sep 20, 2021, 3:15 AM CDT (08:15 UTC)
In effect from
Sep 20, 2021, 10:00 AM CDT
Expired
Sep 21, 2021, 1:00 PM CDT
In force
27 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 08:20 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, 8.3 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 2021-09-20Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 162 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 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 2021-09-20The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 84 square meters per square second.1939Sfc1 km3 km6 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
162 J/kg
Mixed-layer CIN
-133 J/kg
Mixed-layer LCL
1094 m above ground
0-6 km bulk shear
20 kt
0-1 km storm-relative helicity
84 m²/s²
0-3 km storm-relative helicity
47 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

076 
WHUS43 KGRB 200815
CFWGRB

Coastal Hazard Message
National Weather Service Green Bay WI
315 AM CDT Mon Sep 20 2021

WIZ022-040-050-201615-
/O.CAN.KGRB.BH.S.0013.000000T0000Z-210921T1800Z/
/O.NEW.KGRB.BH.S.0014.210920T1500Z-210921T1800Z/
Door-Kewaunee-Manitowoc-
315 AM CDT Mon Sep 20 2021

...BEACH HAZARDS STATEMENT IN EFFECT FROM 10 AM CDT THIS MORNING
THROUGH TUESDAY AFTERNOON...

* WHAT...Waves resulting in strong currents and dangerous 
  swimming conditions expected.

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

* WHEN...From 10 AM CDT this morning through Tuesday afternoon.

* 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
3 follow-up statements
209 
WHUS43 KGRB 201623
CFWGRB

Coastal Hazard Message
National Weather Service Green Bay WI
1123 AM CDT Mon Sep 20 2021

WIZ022-040-050-210030-
/O.CON.KGRB.BH.S.0014.000000T0000Z-210921T1800Z/
Door-Kewaunee-Manitowoc-
1123 AM CDT Mon Sep 20 2021

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

* WHAT...Waves resulting in strong currents and dangerous 
  swimming conditions expected.

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

* WHEN...Through Tuesday afternoon.

* 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.

&&

$$
184 
WHUS43 KGRB 210004
CFWGRB

Coastal Hazard Message
National Weather Service Green Bay WI
704 PM CDT Mon Sep 20 2021

WIZ022-040-050-210930-
/O.CON.KGRB.BH.S.0014.000000T0000Z-210921T1800Z/
Door-Kewaunee-Manitowoc-
704 PM CDT Mon Sep 20 2021

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

* WHAT...Waves resulting in strong currents and dangerous swimming
  conditions expected.

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

* WHEN...Through Tuesday afternoon.

* 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.

&&

$$

Hykin
610 
WHUS43 KGRB 210900
CFWGRB

Coastal Hazard Message
National Weather Service Green Bay WI
400 AM CDT Tue Sep 21 2021

WIZ022-040-050-211800-
/O.CON.KGRB.BH.S.0014.000000T0000Z-210921T1800Z/
Door-Kewaunee-Manitowoc-
400 AM CDT Tue Sep 21 2021

...BEACH HAZARDS STATEMENT REMAINS IN EFFECT UNTIL 1 PM CDT THIS
AFTERNOON...

* WHAT...Waves resulting in strong currents and dangerous swimming
  conditions expected.

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

* WHEN...Until 1 PM CDT this afternoon.

* 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.

&&

$$

JS

The office that day

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

IssuedProductOfficeCountiesLasted
Sep 19, 10:59 PM CDTMarine Dense Fog AdvisoryGRB11 hr
Sep 19, 10:59 PM CDTSmall Craft AdvisoryGRB3 days

Nearby

Beach Hazards Statements in Wisconsin, 2021Every beach hazards statement in 2021

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.