Alert archive / Wisconsin / Beach Hazards Statements in 2026
Beach Hazards Statement 14, NWS Green Bay, WI
NWS Green Bay, WI issued this beach hazards statement at Aug 14, 2026, 2:07 PM CDT for Kewaunee County, Manitowoc County, Wisconsin. It took effect at Aug 15, 2026, 8:00 AM CDT. It was in force for 11 hr.
The area
The counties it named.
The facts
- Issued
- Aug 14, 2026, 2:07 PM CDT (19:07 UTC)
- In effect from
- Aug 15, 2026, 8:00 AM CDT
- Expired
- Aug 15, 2026, 7:00 PM CDT
- In force
- 11 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 19:12 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
Detroit, MI (KDTX), launched 12:00Z, 7.1 hours before the alert went out and 379 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
- 155 J/kg
- Mixed-layer CIN
- -6 J/kg
- Mixed-layer LCL
- 628 m above ground
- 0-6 km bulk shear
- 32 kt
- 0-1 km storm-relative helicity
- -17 m²/s²
- 0-3 km storm-relative helicity
- 49 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- -0.3
The text
As transmitted.
731 WHUS43 KGRB 141907 CFWGRB Coastal Hazard Message National Weather Service Green Bay WI 207 PM CDT Fri Aug 14 2026 WIZ040-050-150315- /O.NEW.KGRB.BH.S.0014.260815T1300Z-260816T0000Z/ Kewaunee-Manitowoc- 207 PM CDT Fri Aug 14 2026 ...BEACH HAZARDS STATEMENT IN EFFECT FROM SATURDAY MORNING THROUGH SATURDAY EVENING... * WHAT...High waves and dangerous currents expected. * WHERE...Beaches along Lake Michigan in Kewaunee and Manitowoc Counties. * WHEN...From 8 AM CDT Saturday morning through Saturday 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. && $$
5 follow-up statements
080 WHUS43 KGRB 150259 CFWGRB Coastal Hazard Message National Weather Service Green Bay WI 959 PM CDT Fri Aug 14 2026 WIZ040-050-151100- /O.CON.KGRB.BH.S.0014.260815T1300Z-260816T0000Z/ Kewaunee-Manitowoc- 959 PM CDT Fri Aug 14 2026 ...BEACH HAZARDS STATEMENT REMAINS IN EFFECT FROM 8 AM CDT SATURDAY THROUGH SATURDAY EVENING... * WHAT...High waves and dangerous currents expected. * WHERE...Beaches along Lake Michigan in Kewaunee and Manitowoc Counties. * WHEN...From 8 AM CDT Saturday through Saturday evening. * IMPACTS...Dangerous swimming conditions are expected. Strong currents can pull swimmers into deeper water and high waves can sweep people off piers. * ADDITIONAL DETAILS...Several beaches that will be most susceptible to the dangerous swimming conditions include... Cresent Beach and City of Kewaunee Beach in Kewaunee County. Point Beach, Neshotah Beach and Red Arrow Beach in Manitowoc County. PRECAUTIONARY/PREPAREDNESS ACTIONS... Remain out of the water to avoid hazardous swimming conditions. && $$
529 WHUS43 KGRB 150756 CFWGRB Coastal Hazard Message National Weather Service Green Bay WI 256 AM CDT Sat Aug 15 2026 WIZ040-150900- /O.CAN.KGRB.BH.S.0014.260815T1300Z-260816T0000Z/ Kewaunee- 256 AM CDT Sat Aug 15 2026 ...BEACH HAZARDS STATEMENT IS CANCELLED... Expected waves have diminished compard to earlier, so the Beach Hazards Statement has been cancelled. $$ WIZ050-151600- /O.CON.KGRB.BH.S.0014.260815T1300Z-260816T0000Z/ Manitowoc- 256 AM CDT Sat Aug 15 2026 ...BEACH HAZARDS STATEMENT REMAINS IN EFFECT FROM 8 AM CDT THIS MORNING THROUGH THIS EVENING... * WHAT...High waves and dangerous currents expected. * WHERE...Beaches along Lake Michigan in Manitowoc County. * WHEN...From 8 AM CDT this morning through this evening. * IMPACTS...Dangerous swimming conditions are expected. Strong currents can pull swimmers into deeper water and high waves can sweep people off piers. * ADDITIONAL DETAILS...Several beaches that will be most susceptible to the dangerous swimming conditions include... Point Beach, Neshotah Beach and Red Arrow Beach in Manitowoc County. PRECAUTIONARY/PREPAREDNESS ACTIONS... Remain out of the water to avoid hazardous swimming conditions. && $$
567 WHUS43 KGRB 151510 CFWGRB Coastal Hazard Message National Weather Service Green Bay WI 1010 AM CDT Sat Aug 15 2026 WIZ050-152315- /O.CON.KGRB.BH.S.0014.000000T0000Z-260816T0000Z/ Manitowoc- 1010 AM CDT Sat Aug 15 2026 ...BEACH HAZARDS STATEMENT REMAINS IN EFFECT UNTIL 7 PM CDT THIS EVENING... * WHAT...High waves and dangerous currents expected. * WHERE...Beaches along Lake Michigan in Manitowoc County. * WHEN...Until 7 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... Point Beach, Neshotah Beach and Red Arrow Beach in Manitowoc County. PRECAUTIONARY/PREPAREDNESS ACTIONS... Remain out of the water to avoid hazardous swimming conditions. && $$
062 WHUS43 KGRB 151930 CFWGRB Coastal Hazard Message National Weather Service Green Bay WI 230 PM CDT Sat Aug 15 2026 WIZ050-160000- /O.CON.KGRB.BH.S.0014.000000T0000Z-260816T0000Z/ Manitowoc- 230 PM CDT Sat Aug 15 2026 ...BEACH HAZARDS STATEMENT REMAINS IN EFFECT UNTIL 7 PM CDT THIS EVENING... * WHAT...High waves and dangerous currents expected. * WHERE...Beaches along Lake Michigan in Manitowoc County. * WHEN...Until 7 PM CDT this evening. * IMPACTS...Dangerous swimming conditions are expected. Strong currents can pull swimmers into deeper water and high waves can sweep people off piers. * ADDITIONAL DETAILS...Several beaches that will be most susceptible to the dangerous swimming conditions include... Point Beach, Neshotah Beach and Red Arrow Beach in Manitowoc County. PRECAUTIONARY/PREPAREDNESS ACTIONS... Remain out of the water to avoid hazardous swimming conditions. && $$
018 WHUS43 KGRB 160006 CFWGRB Coastal Hazard Message National Weather Service Green Bay WI 706 PM CDT Sat Aug 15 2026 WIZ050-160115- /O.EXP.KGRB.BH.S.0014.000000T0000Z-260816T0000Z/ Manitowoc- 706 PM CDT Sat Aug 15 2026 ...BEACH HAZARDS STATEMENT HAS EXPIRED... Wind and waves have diminished and no longer pose a hazard to swimmers. $$
What forecasters said that day
The local office's own words before this beach hazards statement went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Green Bay, WI wrote its last area forecast discussion before this beach hazards statement went out at Aug 14, 1:01 PM CDT, 1 hour 6 minutes earlier. Its key messages:
- Scattered showers (30-55%) late tonight through Saturday afternoon. Latest trend is downward for rain chances and rain amounts on Saturday.
- Another round of showers (30-50%) and a few thunderstorms (10-20%) Saturday night as cold front moves through. Locally heavy rain possible.
- Drying out later Sunday into Monday with next chance for showers and some storms Tuesday into Wednesday.
Area forecast discussion, Aug 14, 1:01 PM CDT, 1 hour 6 minutes before
Area Forecast Discussion National Weather Service Green Bay WI 101 PM CDT Fri Aug 14 2026 Updated aviation portion for 18Z TAF issuance .KEY MESSAGES... - Scattered showers (30-55%) late tonight through Saturday afternoon. Latest trend is downward for rain chances and rain amounts on Saturday. - Another round of showers (30-50%) and a few thunderstorms (10-20%) Saturday night as cold front moves through. Locally heavy rain possible. - Drying out later Sunday into Monday with next chance for showers and some storms Tuesday into Wednesday. && .DISCUSSION... Issued at 140 AM CDT Fri Aug 14 2026 Day today, some showers arrive late tonight: Weak high pressure overhead with pockets of mid cloud and locally dense fog. Thus far the fog is variable in coverage to have anything more than SPS out, but will monitor to see if a Dense Fog Advisory is needed anywhere. A lull in cloud cover this morning, then clouds increase, thicken late today ahead of southern stream shortwave that arrives late tonight. Easterly winds result in warmest readings today central to north-central WI with highs in the lower, maybe mid 80s. Few showers make it into southern tier of counties very late tonight ahead of the wave. Showers/Storms Saturday and Saturday night: Trend that is emerging is most guidance (except especially the NAM) is to keep majority of widespread showers on Saturday to the south closer to the higher instability and convergence on nose of LLJ. This shows up nicely when looking at HREF 1hr probs of 0.01" which shows higher probabilities staying over far southern WI, northern IL during the morning. Increasing moisture and lift on the north edge of this could still produce scattered showers, with the greatest focus southern Fox Valley to the lakeshore. If this trend continues though, some locations could stay dry during the daytime on Saturday, which looked very unlikely a couple days ago. Main front does swing through on Saturday night with primary shortwave over Lake Superior. This is likely when most locations will see at least scattered showers. Given boundary is interacting with PWATs over 1.8" (95+ percentile) and slower MBE vectors are forecast, locally heavy rain may occur Saturday night. Dry later Sunday into Monday: Front clears eastern WI by Sunday morning. A few showers may linger during the morning, but mainly a dry day is expected. Looks kind of breezy with peak gusts over 20 mph at times as winds shift northwest. Despite being behind the front, it could actually be warmer on Sunday with more sunshine and mixing. Not as humid as Saturday, but dewpoints will still linger into the mid 60s over east-central most of the day. Monday will be noticeably less humid across the board. Next chance for rain is Tuesday...Northwest flow brings another shortwave trough and cold front through leading to next chance for organized showers and some thunder Tuesday. Greatest instability Tuesday afternoon remains southwest of our area, so risk for severe storms looks lower which aligns with various ML projections that shows greater signal southern MN into IA. Models/ensembles are picking up on another wave sliding in from the west interacting with the frontal boundary to keep showers and some storms lingering later Tuesday night into Wednesday. With PWATs up to 1.5 thrown into the mix, probabilities of 0.5 inch/1.0 inch of QPF have steadily increased over the last few runs. ECMWF EFI/SOT now has some signal for heavy rain. WPC is also now indicating a Marginal to Slight (level 1/2 of 4) for excessive rain during this time. As we saw with the evolution of this weekends higher risks that eventually shifted south, these areas can shift with time, but will be something to watch as we get closer to this time frame. Cooler air push behind this system for the end of the week with highs settling into the lower to middle 70s. && .AVIATION...for 18Z TAF Issuance Issued at 101 PM CDT Fri Aug 14 2026 Light, generally easterly winds continue through early tomorrow. Mid-level clouds will gradually increase overnight becoming BKN to OVC at times. A few scattered rain showers may move into the area overnight and Saturday morning, but most areas are expected to remain dry so precipitation was not mentioned. Generally VFR conditions are expected across the area through the period. && .GRB WATCHES/WARNINGS/ADVISORIES... None. && DISCUSSION.....JLA AVIATION.......KS
Hazardous weather outlook, Aug 14, 9:15 AM CDT, 4 hours 52 minutes before
Hazardous Weather Outlook National Weather Service Green Bay WI 915 AM CDT Fri Aug 14 2026 WIZ005-010>013-018>022-030-031-035>040-045-048>050-073-074-151415- Vilas-Oneida-Forest-Florence-Northern Marinette County-Lincoln- Langlade-Menominee-Northern Oconto County-Door-Marathon-Shawano- Wood-Portage-Waupaca-Outagamie-Brown-Kewaunee-Waushara-Winnebago- Calumet-Manitowoc-Southern Marinette County- Southern Oconto County- 915 AM CDT Fri Aug 14 2026 This Hazardous Weather Outlook is for north-central and northeast Wisconsin. .DAY ONE...This Afternoon and Tonight No hazardous weather is expected at this time. .DAYS TWO THROUGH SEVEN...Saturday through Thursday There is a slight chance for thunderstorms with brief, locally heavy downpours Saturday night into early Sunday morning. The next chance for thunderstorms will be Tuesday afternoon into Wednesday. The potential for severe weather is low, but locally heavy rain could occur. .SPOTTER INFORMATION STATEMENT... Spotter activation will not be needed this afternoon or tonight. LMZ521-522-541>543-151415- The Bay of Green Bay south of a line from Cedar River MI to Rock Island Passage-Lake Michigan from Washington Island to Sheboygan- 915 AM CDT Fri Aug 14 2026 This Hazardous Weather Outlook is for portions of northwest Lake Michigan and the waters of Green Bay. .DAY ONE...This Afternoon and Tonight No hazardous weather is expected at this time. .DAYS TWO THROUGH SEVEN...Saturday through Thursday Conditions may become hazardous for small craft south of Kewaunee on Saturday. There is a chance for thunderstorms Saturday night into early Sunday, then again Tuesday afternoon into Wednesday. Any thunderstorm could pose a hazard to mariners. KS
The office that day
Everything else NWS Green Bay, WI issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 14, 2:05 PM CDT | Small Craft Advisory | GRB | 29 hr |
Nearby
Beach Hazards Statements in Wisconsin, 2026Every beach hazards statement in 2026
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.