Alert archive / Wisconsin / Beach Hazards Statements in 2025
Beach Hazards Statement 9, NWS Green Bay, WI
NWS Green Bay, WI issued this beach hazards statement at Aug 16, 2025, 8:17 PM CDT for Door County, Kewaunee County, Manitowoc County, Wisconsin. It took effect at Aug 17, 2025, 7:00 AM CDT. It was in force for 35 hr.
The area
The counties it named.
The facts
- Issued
- Aug 16, 2025, 8:17 PM CDT (01:17 UTC)
- In effect from
- Aug 17, 2025, 7:00 AM CDT
- Expired
- Aug 18, 2025, 6:00 PM CDT
- In force
- 35 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 01:16 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, 1.3 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.
- Mixed-layer CAPE
- 46 J/kg
- Mixed-layer CIN
- -270 J/kg
- Mixed-layer LCL
- 1055 m above ground
- 0-6 km bulk shear
- 49 kt
- 0-1 km storm-relative helicity
- 162 m²/s²
- 0-3 km storm-relative helicity
- 150 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.1
The text
As transmitted.
350 WHUS43 KGRB 170117 CFWGRB Coastal Hazard Message National Weather Service Green Bay WI 817 PM CDT Sat Aug 16 2025 WIZ040-050-170930- /O.NEW.KGRB.BH.S.0009.250817T1500Z-250818T2100Z/ Kewaunee-Manitowoc- 817 PM CDT Sat Aug 16 2025 ...BEACH HAZARDS STATEMENT IN EFFECT FROM SUNDAY MORNING THROUGH MONDAY AFTERNOON... * WHAT...High waves and dangerous currents expected. * WHERE...Beaches along Lake Michigan in Kewaunee and Manitowoc Counties. * WHEN...From Sunday morning through Monday 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... 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. && $$ Kieckbusch
7 follow-up statements
472 WHUS43 KGRB 170823 CFWGRB Coastal Hazard Message National Weather Service Green Bay WI 323 AM CDT Sun Aug 17 2025 WIZ022-171630- /O.EXB.KGRB.BH.S.0009.250817T1200Z-250818T1500Z/ Door- 323 AM CDT Sun Aug 17 2025 ...BEACH HAZARDS STATEMENT IN EFFECT FROM 7 AM CDT THIS MORNING THROUGH MONDAY MORNING... * WHAT...High waves and dangerous currents expected. * WHERE...Beaches along Lake Michigan in Door County. * WHEN...From 7 AM this morning through 10 AM Monday morning. * IMPACTS...Dangerous swimming conditions are expected. Strong currents can pull swimmers into deeper water and high waves can sweep people off piers. * ADDITIONAL DETAILS...Several beaches that will be most susceptible to the dangerous swimming conditions include... Rock Island State Beach, Baileys Harbor beaches and Whitefish Dunes Beach in Door County. PRECAUTIONARY/PREPAREDNESS ACTIONS... Remain out of the water to avoid hazardous swimming conditions. && $$ WIZ040-050-171630- /O.EXT.KGRB.BH.S.0009.250817T1200Z-250818T2100Z/ Kewaunee-Manitowoc- 323 AM CDT Sun Aug 17 2025 ...BEACH HAZARDS STATEMENT NOW IN EFFECT FROM 7 AM CDT THIS MORNING THROUGH MONDAY AFTERNOON... * WHAT...High waves and dangerous currents expected. * WHERE...Beaches along Lake Michigan in Kewaunee and Manitowoc Counties. * WHEN...From 7 AM this morning through 4 PM Monday 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... 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. && $$ mpc
428 WHUS43 KGRB 171552 CFWGRB Coastal Hazard Message National Weather Service Green Bay WI 1052 AM CDT Sun Aug 17 2025 WIZ040-050-181000- /O.CON.KGRB.BH.S.0009.000000T0000Z-250818T2100Z/ Kewaunee-Manitowoc- 1052 AM CDT Sun Aug 17 2025 ...BEACH HAZARDS STATEMENT REMAINS IN EFFECT THROUGH MONDAY AFTERNOON... * WHAT...High waves and dangerous currents expected. * WHERE...Beaches along Lake Michigan in Kewaunee and Manitowoc Counties. * WHEN...Through Monday afternoon. * IMPACTS...Dangerous swimming conditions are expected. Strong currents can pull swimmers into deeper water and high waves can sweep people off piers. * ADDITIONAL DETAILS...Several beaches that will be most susceptible to the dangerous swimming conditions include... Cresent Beach and City of Kewaunee Beach in Kewaunee County. Point Beach, Neshotah Beach and Red Arrow Beach in Manitowoc County. PRECAUTIONARY/PREPAREDNESS ACTIONS... Remain out of the water to avoid hazardous swimming conditions. && $$ WIZ022-181000- /O.CON.KGRB.BH.S.0009.000000T0000Z-250818T1500Z/ Door- 1052 AM CDT Sun Aug 17 2025 ...BEACH HAZARDS STATEMENT REMAINS IN EFFECT THROUGH MONDAY MORNING... * WHAT...High waves and dangerous currents expected. * WHERE...Beaches along Lake Michigan in Door County. * WHEN...Through Monday morning. * 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. && $$
855 WHUS43 KGRB 172024 CFWGRB Coastal Hazard Message National Weather Service Green Bay WI 324 PM CDT Sun Aug 17 2025 WIZ040-050-180430- /O.CON.KGRB.BH.S.0009.000000T0000Z-250818T2100Z/ Kewaunee-Manitowoc- 324 PM CDT Sun Aug 17 2025 ...BEACH HAZARDS STATEMENT REMAINS IN EFFECT THROUGH MONDAY AFTERNOON... * WHAT...High waves and dangerous currents. * WHERE...Beaches along Lake Michigan in Kewaunee and Manitowoc Counties. * WHEN...Through Monday afternoon. * IMPACTS...Dangerous swimming conditions are expected. Strong currents can pull swimmers into deeper water and high waves can sweep people off piers. * ADDITIONAL DETAILS...Beaches that will be most susceptible to the dangerous swimming conditions include... Cresent Beach and City of Kewaunee Beach in Kewaunee County. Point Beach, Neshotah Beach and Red Arrow Beach in Manitowoc County. PRECAUTIONARY/PREPAREDNESS ACTIONS... Remain out of the water to avoid hazardous swimming conditions. && $$ WIZ022-180430- /O.CON.KGRB.BH.S.0009.000000T0000Z-250818T1500Z/ Door- 324 PM CDT Sun Aug 17 2025 ...BEACH HAZARDS STATEMENT REMAINS IN EFFECT THROUGH MONDAY MORNING... * WHAT...High waves and dangerous currents. * WHERE...Beaches along Lake Michigan in Door County. * WHEN...Through Monday morning. * IMPACTS...Dangerous swimming conditions are expected. Strong currents can pull swimmers into deeper water and high waves can sweep people off piers. * ADDITIONAL DETAILS...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. && $$
809 WHUS43 KGRB 180227 CFWGRB Coastal Hazard Message National Weather Service Green Bay WI 927 PM CDT Sun Aug 17 2025 WIZ040-050-181030- /O.CON.KGRB.BH.S.0009.000000T0000Z-250818T2100Z/ Kewaunee-Manitowoc- 927 PM CDT Sun Aug 17 2025 ...BEACH HAZARDS STATEMENT REMAINS IN EFFECT THROUGH MONDAY AFTERNOON... * WHAT...High waves and dangerous currents. * WHERE...Beaches along Lake Michigan in Kewaunee and Manitowoc Counties. * WHEN...Through Monday afternoon. * IMPACTS...Dangerous swimming conditions are expected. Strong currents can pull swimmers into deeper water and high waves can sweep people off piers. * ADDITIONAL DETAILS...Beaches that will be most susceptible to the dangerous swimming conditions include... Cresent Beach and City of Kewaunee Beach in Kewaunee County. Point Beach, Neshotah Beach and Red Arrow Beach in Manitowoc County. PRECAUTIONARY/PREPAREDNESS ACTIONS... Remain out of the water to avoid hazardous swimming conditions. && $$ WIZ022-181030- /O.CON.KGRB.BH.S.0009.000000T0000Z-250818T1500Z/ Door- 927 PM CDT Sun Aug 17 2025 ...BEACH HAZARDS STATEMENT REMAINS IN EFFECT THROUGH MONDAY MORNING... * WHAT...High waves and dangerous currents. * WHERE...Beaches along Lake Michigan in Door County. * WHEN...Through Monday morning. * IMPACTS...Dangerous swimming conditions are expected. Strong currents can pull swimmers into deeper water and high waves can sweep people off piers. * ADDITIONAL DETAILS...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. && $$
094 WHUS43 KGRB 180921 CFWGRB Coastal Hazard Message National Weather Service Green Bay WI 421 AM CDT Mon Aug 18 2025 WIZ040-050-181730- /O.CON.KGRB.BH.S.0009.000000T0000Z-250818T2100Z/ Kewaunee-Manitowoc- 421 AM CDT Mon Aug 18 2025 ...BEACH HAZARDS STATEMENT REMAINS IN EFFECT UNTIL 4 PM CDT THIS AFTERNOON... * WHAT...High waves and dangerous currents. * WHERE...Beaches along Lake Michigan in Kewaunee and Manitowoc Counties. * WHEN...Through 4 PM this afternoon. * IMPACTS...Dangerous swimming conditions are expected. Strong currents can pull swimmers into deeper water and high waves can sweep people off piers. * ADDITIONAL DETAILS...Several beaches that will be most susceptible to the dangerous swimming conditions include... Cresent Beach and City of Kewaunee Beach in Kewaunee County. Point Beach, Neshotah Beach and Red Arrow Beach in Manitowoc County. PRECAUTIONARY/PREPAREDNESS ACTIONS... Remain out of the water to avoid hazardous swimming conditions. && $$ WIZ022-181500- /O.CON.KGRB.BH.S.0009.000000T0000Z-250818T1500Z/ Door- 421 AM CDT Mon Aug 18 2025 ...BEACH HAZARDS STATEMENT REMAINS IN EFFECT UNTIL 10 AM CDT THIS MORNING... * WHAT...High waves and dangerous currents. * WHERE...Beaches along Lake Michigan in Door County. * WHEN...Through 10 AM this morning. * 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. && $$ mpc
135 WHUS43 KGRB 181451 CFWGRB Coastal Hazard Message National Weather Service Green Bay WI 951 AM CDT Mon Aug 18 2025 WIZ022-181600- /O.EXP.KGRB.BH.S.0009.000000T0000Z-250818T1500Z/ Door- 951 AM CDT Mon Aug 18 2025 ...BEACH HAZARDS STATEMENT WILL EXPIRE AT 10 AM CDT THIS MORNING... The swim risk has lowered as wave heights have decreased, therefore will allow the Beach Hazards Statement to expire at 10 AM. $$ WIZ040-050-182100- /O.CON.KGRB.BH.S.0009.000000T0000Z-250818T2100Z/ Kewaunee-Manitowoc- 951 AM CDT Mon Aug 18 2025 ...BEACH HAZARDS STATEMENT REMAINS IN EFFECT UNTIL 4 PM CDT THIS AFTERNOON... * WHAT...High waves and dangerous currents. * WHERE...Beaches along Lake Michigan in Kewaunee and Manitowoc Counties. * WHEN...Until 4 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... 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. && $$ Kruk
293 WHUS43 KGRB 181950 CFWGRB Coastal Hazard Message National Weather Service Green Bay WI 250 PM CDT Mon Aug 18 2025 WIZ040-050-182300- /O.EXT.KGRB.BH.S.0009.000000T0000Z-250818T2300Z/ Kewaunee-Manitowoc- 250 PM CDT Mon Aug 18 2025 ...BEACH HAZARDS STATEMENT NOW IN EFFECT UNTIL 6 PM CDT THIS EVENING... * WHAT...High waves and dangerous currents. * WHERE...Beaches along Lake Michigan in Kewaunee and Manitowoc Counties. * WHEN...Until 6 PM CDT this evening. * IMPACTS...Dangerous swimming conditions are expected. Strong currents can pull swimmers into deeper water and high waves can sweep people off piers. * ADDITIONAL DETAILS...Several beaches that will be most susceptible to the dangerous swimming conditions include... Cresent Beach and City of Kewaunee Beach in Kewaunee County. Point Beach, Neshotah Beach and Red Arrow Beach in Manitowoc County. PRECAUTIONARY/PREPAREDNESS ACTIONS... Remain out of the water to avoid hazardous swimming conditions. && $$
The office that day
Everything else NWS Green Bay, WI issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 16, 8:16 PM CDT | Small Craft Advisory | GRB | 46 hr |
Nearby
Beach Hazards Statements in Wisconsin, 2025Every beach hazards statement in 2025
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.