Alert archive / Wisconsin / Beach Hazards Statements in 2021

Beach Hazards Statement 6, NWS Green Bay, WI

July 6, 2021Door County, Wisconsin

NWS Green Bay, WI issued this beach hazards statement at Jul 6, 2021, 9:47 PM CDT for Door County, Wisconsin. It took effect at Jul 7, 2021, 9:00 AM CDT. It was in force for 31 hr.

The area

The counties it named.

The facts

Issued
Jul 6, 2021, 9:47 PM CDT (02:47 UTC)
In effect from
Jul 7, 2021, 9:00 AM CDT
Expired
Jul 8, 2021, 4:00 PM CDT
In force
31 hr
Issued by
NWS Green Bay, WI

County Door County, WI

The radar

The Green Bay radar (KGRB), 71 km from the middle of the area, began a volume at 02:47 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, 2.8 hours before the alert went out and 71 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 2021-07-07Temperature 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 00:00Z on 2021-07-07The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 172 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
765 m above ground
0-6 km bulk shear
39 kt
0-1 km storm-relative helicity
172 m²/s²
0-3 km storm-relative helicity
230 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

759 
WHUS43 KGRB 070247
CFWGRB

Coastal Hazard Message
National Weather Service Green Bay WI
947 PM CDT Tue Jul 6 2021

WIZ022-071100-
/O.NEW.KGRB.BH.S.0006.210707T1400Z-210708T1500Z/
Door-
947 PM CDT Tue Jul 6 2021

...BEACH HAZARDS STATEMENT IN EFFECT FROM 9 AM CDT WEDNESDAY
THROUGH THURSDAY MORNING...

* WHAT...High waves of 3 to 5 feet, strong currents, and 
  dangerous swimming conditions are expected.

* WHERE...Door County.

* WHEN...From 9 AM CDT Wednesday through Thursday morning.

* IMPACTS...The large waves could be accompanied by rip 
  currents, which will make swimming very dangerous.


PRECAUTIONARY/PREPAREDNESS ACTIONS...

Remain out of the water to avoid hazardous swimming conditions.

&&

$$

WIZ040-050-071100-
/O.EXT.KGRB.BH.S.0005.000000T0000Z-210708T1500Z/
Kewaunee-Manitowoc-
947 PM CDT Tue Jul 6 2021

...BEACH HAZARDS STATEMENT NOW IN EFFECT THROUGH THURSDAY
MORNING...

* WHAT...High waves of 3 to 5 feet, strong currents, and 
  dangerous swimming conditions are expected.

* WHERE...Kewaunee and Manitowoc Counties.

* WHEN...Through Thursday morning.

* IMPACTS...The large waves could be accompanied by rip 
  currents, which will make swimming very dangerous.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Remain out of the water to avoid hazardous swimming conditions.

&&

$$

Bersch
7 follow-up statements
467 
WHUS43 KGRB 071001
CFWGRB

Coastal Hazard Message
National Weather Service Green Bay WI
501 AM CDT Wed Jul 7 2021

WIZ022-071815-
/O.CON.KGRB.BH.S.0006.210707T1400Z-210708T1500Z/
Door-
501 AM CDT Wed Jul 7 2021

...BEACH HAZARDS STATEMENT REMAINS IN EFFECT FROM 9 AM CDT THIS
MORNING THROUGH THURSDAY MORNING...

* WHAT...High waves of 3 to 5 feet, strong currents, and 
  dangerous swimming conditions are expected.

* WHERE...Door County.

* WHEN...From 9 AM CDT this morning through Thursday morning.

* IMPACTS...The large waves could be accompanied by rip 
  currents, which will make swimming very dangerous.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Remain out of the water to avoid hazardous swimming conditions.

&&

$$

WIZ040-050-071815-
/O.CON.KGRB.BH.S.0005.000000T0000Z-210708T1500Z/
Kewaunee-Manitowoc-
501 AM CDT Wed Jul 7 2021

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

* WHAT...High waves of 3 to 5 feet, strong currents, and 
  dangerous swimming conditions are expected.

* WHERE...Kewaunee and Manitowoc Counties.

* WHEN...Through Thursday morning.

* IMPACTS...The large waves could be accompanied by rip 
  currents, which will make swimming very dangerous.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Remain out of the water to avoid hazardous swimming conditions.

&&

$$
210 
WHUS43 KGRB 071514
CFWGRB

Coastal Hazard Message
National Weather Service Green Bay WI
1014 AM CDT Wed Jul 7 2021

WIZ022-072315-
/O.CON.KGRB.BH.S.0006.000000T0000Z-210708T1500Z/
Door-
1014 AM CDT Wed Jul 7 2021

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

* WHAT...High waves of 3 to 5 feet, strong currents, and 
  dangerous swimming conditions are expected.

* WHERE...Door County.

* WHEN...From 9 AM CDT this morning through Thursday morning.

* IMPACTS...The large waves could be accompanied by rip 
  currents, which will make swimming very dangerous.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Remain out of the water to avoid hazardous swimming conditions.

&&

$$

WIZ040-050-072315-
/O.CON.KGRB.BH.S.0005.000000T0000Z-210708T1500Z/
Kewaunee-Manitowoc-
1014 AM CDT Wed Jul 7 2021

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

* WHAT...High waves of 4 to 6 feet, strong currents, and 
  dangerous swimming conditions are expected.

* WHERE...Kewaunee and Manitowoc Counties.

* WHEN...Through Thursday morning.

* IMPACTS...The large waves could be accompanied by rip 
  currents, which will make swimming very dangerous.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Remain out of the water to avoid hazardous swimming conditions.

&&

$$
465 
WHUS43 KGRB 072038
CFWGRB

Coastal Hazard Message
National Weather Service Green Bay WI
338 PM CDT Wed Jul 7 2021

WIZ022-080445-
/O.EXT.KGRB.BH.S.0006.000000T0000Z-210708T2100Z/
Door-
338 PM CDT Wed Jul 7 2021

...BEACH HAZARDS STATEMENT NOW IN EFFECT THROUGH THURSDAY
AFTERNOON...

* WHAT...High waves of 3 to 5 feet, strong currents, and 
  dangerous swimming conditions are expected.

* WHERE...Door County.

* WHEN...Through Thursday afternoon.

* IMPACTS...Dangerous swimming conditions are expected due to high
  waves and onshore winds.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Remain out of the water to avoid hazardous swimming conditions.

&&

$$

WIZ040-050-080445-
/O.EXT.KGRB.BH.S.0005.000000T0000Z-210708T2100Z/
Kewaunee-Manitowoc-
338 PM CDT Wed Jul 7 2021

...BEACH HAZARDS STATEMENT NOW IN EFFECT THROUGH THURSDAY
AFTERNOON...

* WHAT...High waves of 3 to 5 feet, strong currents, and 
  dangerous swimming conditions are expected.

* WHERE...Kewaunee and Manitowoc Counties.

* WHEN...Through Thursday afternoon.

* IMPACTS...Dangerous swimming conditions are expected due to high
  waves and onshore winds.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Remain out of the water to avoid hazardous swimming conditions.

&&

$$

Bersch
708 
WHUS43 KGRB 080222
CFWGRB

Coastal Hazard Message
National Weather Service Green Bay WI
922 PM CDT Wed Jul 7 2021

WIZ022-081030-
/O.CON.KGRB.BH.S.0006.000000T0000Z-210708T2100Z/
Door-
922 PM CDT Wed Jul 7 2021

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

* WHAT...High waves of 3 to 5 feet and strong currents are 
  expected.

* WHERE...Door County.

* WHEN...Through Thursday afternoon.

* IMPACTS...Dangerous swimming conditions are expected due to 
  high waves and onshore winds.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Remain out of the water to avoid hazardous swimming conditions.

&&

$$

WIZ040-050-081030-
/O.CON.KGRB.BH.S.0005.000000T0000Z-210708T2100Z/
Kewaunee-Manitowoc-
922 PM CDT Wed Jul 7 2021

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

* WHAT...High waves of 3 to 5 feet and strong currents are
  expected.

* WHERE...Kewaunee and Manitowoc Counties.

* WHEN...Through Thursday afternoon.

* IMPACTS...Dangerous swimming conditions are expected due to 
  high waves and onshore winds.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Remain out of the water to avoid hazardous swimming conditions.

&&

$$

Bersch
236 
WHUS43 KGRB 080814
CFWGRB

Coastal Hazard Message
National Weather Service Green Bay WI
314 AM CDT Thu Jul 8 2021

WIZ022-081615-
/O.CON.KGRB.BH.S.0006.000000T0000Z-210708T2100Z/
Door-
314 AM CDT Thu Jul 8 2021

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

* WHAT...High waves of 3 to 5 feet and strong currents are 
  expected.

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

* WHEN...Through this afternoon.

* IMPACTS...Dangerous swimming conditions are expected due to 
  high waves and onshore winds.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Remain out of the water to avoid hazardous swimming conditions.

&&

$$

WIZ040-050-081615-
/O.CON.KGRB.BH.S.0005.000000T0000Z-210708T2100Z/
Kewaunee-Manitowoc-
314 AM CDT Thu Jul 8 2021

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

* WHAT...High waves of 3 to 5 feet and strong currents are 
  expected.

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

* WHEN...Through this afternoon.

* IMPACTS...Dangerous swimming conditions are expected due to 
  high waves and onshore winds.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Remain out of the water to avoid hazardous swimming conditions.

&&

$$
192 
WHUS43 KGRB 081526
CFWGRB

Coastal Hazard Message
National Weather Service Green Bay WI
1026 AM CDT Thu Jul 8 2021

WIZ022-082100-
/O.CON.KGRB.BH.S.0006.000000T0000Z-210708T2100Z/
Door-
1026 AM CDT Thu Jul 8 2021

...BEACH HAZARDS STATEMENT REMAINS IN EFFECT UNTIL 4 PM CDT THIS
AFTERNOON...

* WHAT...High waves of 3 to 5 feet and strong currents are 
  expected.

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

* WHEN...Through this afternoon.

* IMPACTS...Dangerous swimming conditions are expected due to 
  high waves and onshore winds.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Remain out of the water to avoid hazardous swimming conditions.

&&

$$

WIZ040-050-082100-
/O.CON.KGRB.BH.S.0005.000000T0000Z-210708T2100Z/
Kewaunee-Manitowoc-
1026 AM CDT Thu Jul 8 2021

...BEACH HAZARDS STATEMENT REMAINS IN EFFECT UNTIL 4 PM CDT THIS
AFTERNOON...

* WHAT...High waves of 3 to 5 feet and strong currents are 
  expected.

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

* WHEN...Through this afternoon.

* IMPACTS...Dangerous swimming conditions are expected due to 
  high waves and onshore winds.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Remain out of the water to avoid hazardous swimming conditions.

&&

$$
793 
WHUS43 KGRB 082058
CFWGRB

Coastal Hazard Message
National Weather Service Green Bay WI
358 PM CDT Thu Jul 8 2021

WIZ022-082200-
/O.EXP.KGRB.BH.S.0006.000000T0000Z-210708T2100Z/
Door-
358 PM CDT Thu Jul 8 2021

...BEACH HAZARDS STATEMENT WILL EXPIRE AT 4 PM CDT THIS
AFTERNOON...

Winds and waves continue to subside.

$$

WIZ040-050-082200-
/O.EXP.KGRB.BH.S.0005.000000T0000Z-210708T2100Z/
Kewaunee-Manitowoc-
358 PM CDT Thu Jul 8 2021

...BEACH HAZARDS STATEMENT WILL EXPIRE AT 4 PM CDT THIS
AFTERNOON...

Winds and waves continue to subside.

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 6, 7:00 PM CDTSpecial Weather StatementGRBCalumet45 min
Jul 6, 7:16 PM CDTSpecial Marine WarningGRB89 min
Jul 6, 7:44 PM CDTSpecial Weather StatementGRBManitowoc31 min

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.