Alert archive / Wisconsin / Beach Hazards Statements in 2020

Beach Hazards Statement 5, NWS Green Bay, WI

July 25, 2020Door County, Wisconsin

NWS Green Bay, WI issued this beach hazards statement at Jul 25, 2020, 3:19 AM CDT for Door County, Wisconsin. It took effect at Jul 25, 2020, 1:00 PM CDT. It was in force for 15 hr.

The area

The counties it named.

The facts

Issued
Jul 25, 2020, 3:19 AM CDT (08:19 UTC)
In effect from
Jul 25, 2020, 1:00 PM CDT
Expired
Jul 26, 2020, 4:00 AM CDT
In force
15 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 08:23 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

Alpena, MI (KAPX), launched 00:00Z, 8.3 hours before the alert went out and 391 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, Alpena, MI at 00:00Z on 2020-07-25Temperature 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, Alpena, MI at 00:00Z on 2020-07-25The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -12 square meters per square second.1939Sfc1 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
1934 m above ground
0-6 km bulk shear
11 kt
0-1 km storm-relative helicity
-12 m²/s²
0-3 km storm-relative helicity
69 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

204 
WHUS43 KGRB 250819
CFWGRB

Coastal Hazard Message
National Weather Service Green Bay WI
319 AM CDT Sat Jul 25 2020

WIZ022-251630-
/O.NEW.KGRB.BH.S.0005.200725T1800Z-200726T0900Z/
Door-
319 AM CDT Sat Jul 25 2020

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

* WHAT...South wind increasing to 15 to 25 mph will produce waves
  of 3 to 5 feet this afternoon and 4 to 7 feet tonight.

* WHERE...Door County.

* WHEN...From 1 PM CDT this afternoon through late tonight.

* IMPACTS...Large waves and strong currents will make swimming 
  hazardous.

* ADDITIONAL DETAILS...This will affect the Lake Michigan beaches
  of Door County including Rock Island State Beach, Baileys 
  Harbor beaches, and Whitefish Dunes Beach.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Remain out of the water to avoid hazardous swimming conditions.

&&

$$

Kurimski
4 follow-up statements
983 
WHUS43 KGRB 251515
CFWGRB

Coastal Hazard Message
National Weather Service Green Bay WI
1015 AM CDT Sat Jul 25 2020

WIZ022-252315-
/O.CON.KGRB.BH.S.0005.200725T1800Z-200726T0900Z/
Door-
1015 AM CDT Sat Jul 25 2020

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

* WHAT...South wind increasing to 15 to 25 mph will produce 
  waves of 3 to 5 feet this afternoon and 4 to 7 feet tonight.

* WHERE...Door County.

* WHEN...From 1 PM CDT this afternoon through late tonight.

* IMPACTS...Large waves and strong currents will make swimming 
  hazardous.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Remain out of the water to avoid hazardous swimming conditions.

&&

$$
063 
WHUS43 KGRB 252026
CFWGRB

Coastal Hazard Message
National Weather Service Green Bay WI
326 PM CDT Sat Jul 25 2020

WIZ022-260430-
/O.CON.KGRB.BH.S.0005.000000T0000Z-200726T0900Z/
Door-
326 PM CDT Sat Jul 25 2020

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

* WHAT...South winds 15 to 25 mph will produce waves of 3 to 5 
  feet.

* WHERE...Door County.

* WHEN...Through 4 am tonight.

* IMPACTS...Large waves and strong currents will make swimming 
  hazardous.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Remain out of the water to avoid hazardous swimming conditions.

&&

$$

mpc
429 
WHUS43 KGRB 260153
CFWGRB

Coastal Hazard Message
National Weather Service Green Bay WI
853 PM CDT Sat Jul 25 2020

WIZ022-260900-
/O.CON.KGRB.BH.S.0005.000000T0000Z-200726T0900Z/
Door-
853 PM CDT Sat Jul 25 2020

...BEACH HAZARDS STATEMENT REMAINS IN EFFECT UNTIL 4 AM CDT
SUNDAY...

* WHAT...South winds 10 to 20 mph will produce waves of 3 to 5 
  feet.

* WHERE...Door County.

* WHEN...Through 4 am tonight.

* IMPACTS...Large waves and strong currents will make swimming 
  hazardous.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Remain out of the water to avoid hazardous swimming conditions.

&&

$$
453 
WHUS43 KGRB 260850
CFWGRB

Coastal Hazard Message
National Weather Service Green Bay WI
350 AM CDT Sun Jul 26 2020

WIZ022-261000-
/O.EXP.KGRB.BH.S.0005.000000T0000Z-200726T0900Z/
Door-
350 AM CDT Sun Jul 26 2020

...BEACH HAZARDS STATEMENT WILL EXPIRE AT 4 AM CDT EARLY THIS
MORNING...

Waves have subsided on the Lake Michigan nearshore waters.
Therefore, the beach hazard statement will be allowed to expire.

$$

Kurimski

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 25, 3:18 AM CDTSmall Craft AdvisoryGRB25 hr
Jul 25, 3:49 PM CDTSpecial Weather StatementGRBVilas86 min
Jul 25, 5:56 PM CDTSpecial Weather StatementGRBForest, Oneida64 min

Nearby

Beach Hazards Statements in Wisconsin, 2020Every beach hazards statement in 2020

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.