Alert archive / Wisconsin / Beach Hazards Statements in 2018

Beach Hazards Statement 9, NWS Green Bay, WI

August 20, 2018Kewaunee County, Manitowoc County, Wisconsin

NWS Green Bay, WI issued this beach hazards statement at Aug 20, 2018, 2:55 PM CDT for Kewaunee County, Manitowoc County, Wisconsin. It took effect at Aug 21, 2018, 1:00 AM CDT. It was in force for 18 hr.

The area

The counties it named.

The facts

Issued
Aug 20, 2018, 2:55 PM CDT (19:55 UTC)
In effect from
Aug 21, 2018, 1:00 AM CDT
Expired
Aug 21, 2018, 7:00 PM CDT
In force
18 hr
Issued by
NWS Green Bay, WI

Counties Kewaunee County, WI, Manitowoc County, WI

The radar

The Green Bay radar (KGRB), 46 km from the middle of the area, began a volume at 19:54 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, 7.9 hours before the alert went out and 45 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 2018-08-20Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 3 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 12:00Z on 2018-08-20The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 83 square meters per square second.193958Sfc1 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
3 J/kg
Mixed-layer CIN
-121 J/kg
Mixed-layer LCL
1054 m above ground
0-6 km bulk shear
23 kt
0-1 km storm-relative helicity
83 m²/s²
0-3 km storm-relative helicity
96 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

232 
WHUS43 KGRB 201955
CFWGRB

Lakeshore Hazard Message
National Weather Service Green Bay WI
255 PM CDT Mon Aug 20 2018

Default overview section
WIZ040-050-210400-
/O.NEW.KGRB.BH.S.0009.180821T0600Z-180822T0000Z/
Kewaunee-Manitowoc-
255 PM CDT Mon Aug 20 2018

...BEACH HAZARDS STATEMENT IN EFFECT FROM 1 AM CDT TUESDAY
THROUGH TUESDAY EVENING...

The National Weather Service in Green Bay has issued a Beach
Hazards Statement, which is in effect from 1 AM CDT Tuesday
through Tuesday evening. 

* High wave action, strong currents, and dangerous swimming 
  conditions expected.

* Location...

  Beaches of Kewaunee County including Cresent Beach and City of 
  Kewaunee Beach.

  Beaches of Manitowoc County including Point Beach, Neshotah
  Beach, and Red Arrow Beach.

* Strong northerly winds will bring waves of 4 to 6 feet to the
  Lake Michigan shore of northeast Wisconsin late tonight into
  Tuesday evening, resulting in dangerous swimming conditions.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

High wave action makes swimming difficult as waves on the Great
Lakes occur in rapid succession.  High wave action also leads to
strong currents.

&&

$$
Eckberg
4 follow-up statements
731 
WHUS43 KGRB 210152
CFWGRB

Coastal Hazard Message
National Weather Service Green Bay WI
852 PM CDT Mon Aug 20 2018

Default overview section

WIZ040-050-211000-
/O.CON.KGRB.BH.S.0009.180821T0600Z-180822T0000Z/
Kewaunee-Manitowoc-
852 PM CDT Mon Aug 20 2018

...BEACH HAZARDS STATEMENT REMAINS IN EFFECT FROM 1 AM CDT
TUESDAY THROUGH TUESDAY EVENING...

* High wave action, strong currents, and dangerous swimming 
  conditions expected. 

* Location...

 Beaches of Kewaunee County including Cresent Beach and City of 
Kewaunee Beach.

 Beaches of Manitowoc County including Point Beach, Neshotah  
Beach, and Red Arrow Beach.

* Strong northerly winds will bring waves of 4 to 6 feet to the 
  Lake Michigan shore of northeast Wisconsin late tonight into 
  Tuesday evening, resulting in dangerous swimming conditions. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

High wave action makes swimming difficult as waves on the Great
Lakes occur in rapid succession.  High wave action also leads to
strong currents.

&&

$$
424 
WHUS43 KGRB 210844
CFWGRB

Lakeshore Hazard Message
National Weather Service Green Bay WI
344 AM CDT Tue Aug 21 2018

WIZ040-050-211645-
/O.CON.KGRB.BH.S.0009.000000T0000Z-180822T0000Z/
Kewaunee-Manitowoc-
344 AM CDT Tue Aug 21 2018

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

* High wave action, strong currents, and dangerous swimming 
  conditions expected. 

* Location...

Beaches of Kewaunee County including Cresent Beach and City of
Kewaunee Beach.

Beaches of Manitowoc County including Point Beach, Neshotah
Beach, and Red Arrow Beach.

* Strong northerly winds will bring waves of 4 to 6 feet to the 
  Lake Michigan shore of northeast Wisconsin late tonight into 
  Tuesday evening, resulting in dangerous swimming conditions. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

High wave action makes swimming difficult as waves on the Great
Lakes occur in rapid succession.  High wave action also leads to
strong currents.

&&

$$

Kurimski
864 
WHUS43 KGRB 211443
CFWGRB

Lakeshore Hazard Message
National Weather Service Green Bay WI
943 AM CDT Tue Aug 21 2018


WIZ040-050-212245-
/O.CON.KGRB.BH.S.0009.000000T0000Z-180822T0000Z/
Kewaunee-Manitowoc-
943 AM CDT Tue Aug 21 2018

...BEACH HAZARDS STATEMENT REMAINS IN EFFECT UNTIL 7 PM CDT THIS
EVENING...

* High wave action, strong currents, and dangerous swimming 
  conditions expected. 

* Location...

Beaches of Kewaunee County including Cresent Beach and City of
Kewaunee Beach.

Beaches of Manitowoc County including Point Beach, Neshotah
Beach, and Red Arrow Beach.

* Strong northerly winds will bring waves of 4 to 6 feet to the 
  Lake Michigan shore of northeast Wisconsin late tonight into 
  Tuesday evening, resulting in dangerous swimming conditions. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

High wave action makes swimming difficult as waves on the Great
Lakes occur in rapid succession.  High wave action also leads to
strong currents.

&&

$$
911 
WHUS43 KGRB 212021
CFWGRB

Lakeshore Hazard Message
National Weather Service Green Bay WI
321 PM CDT Tue Aug 21 2018

Default overview section
WIZ040-050-220000-
/O.CON.KGRB.BH.S.0009.000000T0000Z-180822T0000Z/
Kewaunee-Manitowoc-
321 PM CDT Tue Aug 21 2018

...BEACH HAZARDS STATEMENT REMAINS IN EFFECT UNTIL 7 PM CDT THIS
EVENING...

* High wave action, strong currents, and dangerous swimming 
  conditions expected. 

* Location...

  Beaches of Kewaunee County including Cresent Beach and City of
  Kewaunee Beach.

  Beaches of Manitowoc County including Point Beach, Neshotah
  Beach, and Red Arrow Beach.

* Strong northwest winds will bring waves of 3 to 5 feet to the
  Lake Michigan shore of northeast Wisconsin through this evening,
  resulting in dangerous swimming conditions.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

High wave action makes swimming difficult as waves on the Great
Lakes occur in rapid succession.  High wave action also leads to
strong currents.

&&

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 20, 3:20 AM CDTSmall Craft AdvisoryGRB46 hr

Nearby

Beach Hazards Statements in Wisconsin, 2018Every beach hazards statement in 2018

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.