Surf Forecast
Issued by NWS Chicago, IL

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060
FZUS53 KLOT 200124
SRFLOT

Surf Zone Forecast for Lake Michigan Beaches
National Weather Service Chicago IL
824 PM CDT Tue Aug 19 2025

ILZ006-200915-
Lake-
Including the beaches of Illinois Beach State Park
824 PM CDT Tue Aug 19 2025

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

.TONIGHT...
Swim Risk*..................High.
Wave Height.................2 to 4 feet building to 3 to 5 feet.
Weather.....................Mostly cloudy. A chance of sprinkles.
Low Temperature.............In the upper 60s.
Winds.......................North winds 5 to 10 mph increasing to 10
                            to 15 mph late.

.WEDNESDAY...
Swim Risk*..................High.
Wave Height.................4 to 6 feet.
Weather.....................Mostly cloudy, then becoming partly
                            cloudy. A chance of sprinkles in the
                            morning, then a chance of showers early
                            in the afternoon.
High Temperature............In the mid 70s.
Winds.......................North winds around 15 mph with gusts up
                            to 25 mph.

.SWIM RISK OUTLOOK...
.WEDNESDAY NIGHT...High swim risk*.
.THURSDAY...High swim risk*.
.THURSDAY NIGHT...Low swim risk*.
.FRIDAY...Low swim risk*.
.FRIDAY NIGHT...Low swim risk*.
.SATURDAY...Low swim risk*.

&&

Swim Risk Category
* Low Risk - Large waves and dangerous currents are not expected,
however dangerous currents may exist at any time near piers,
breakwalls, and river outlets.
* Moderate Risk - Breaking waves and currents are expected. Stay away
from dangerous areas like piers, breakwalls, and river outlets.
Always have a flotation device with you in the water.
* High Risk - Life-threatening waves and currents are expected. Stay
out of the water and stay away from dangerous areas like piers and
breakwalls.

** For thunderstorm, waterspout, and UV definitions see:
https://www.weather.gov/beach/lot

$$

ILZ103-104-200915-
Northern Cook-Central Cook-
Including the beaches of Chicago Park District
824 PM CDT Tue Aug 19 2025

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

.TONIGHT...
Swim Risk*..................High.
Wave Height.................2 to 4 feet building to 3 to 5 feet.
Weather.....................Mostly cloudy. A chance of sprinkles.
Low Temperature.............In the upper 60s.
Winds.......................North winds 5 to 10 mph increasing to 10
                            to 15 mph late.

.WEDNESDAY...
Swim Risk*..................High.
Wave Height.................4 to 6 feet.
Weather.....................Mostly cloudy, then becoming partly
                            cloudy. A chance of sprinkles in the
                            morning, then a chance of showers early
                            in the afternoon.
High Temperature............In the mid 70s.
Winds.......................North winds around 15 mph with gusts up
                            to 25 mph.

.SWIM RISK OUTLOOK...
.WEDNESDAY NIGHT...High swim risk*.
.THURSDAY...High swim risk*.
.THURSDAY NIGHT...Low swim risk*.
.FRIDAY...Low swim risk*.
.FRIDAY NIGHT...Low swim risk*.
.SATURDAY...Low swim risk*.

&&

Swim Risk Category
* Low Risk - Large waves and dangerous currents are not expected,
however dangerous currents may exist at any time near piers,
breakwalls, and river outlets.
* Moderate Risk - Breaking waves and currents are expected. Stay away
from dangerous areas like piers, breakwalls, and river outlets.
Always have a flotation device with you in the water.
* High Risk - Life-threatening waves and currents are expected. Stay
out of the water and stay away from dangerous areas like piers and
breakwalls.

** For thunderstorm, waterspout, and UV definitions see:
https://www.weather.gov/beach/lot

$$

INZ001-200915-
Lake-
Including the beaches of Indiana Dunes National Park
824 PM CDT Tue Aug 19 2025

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

.TONIGHT...
Swim Risk*..................High.
Wave Height.................4 to 6 feet.
Weather.....................Partly cloudy. A chance of sprinkles in
                            the late evening and overnight.
Low Temperature.............In the upper 60s.
Winds.......................North winds 10 to 20 mph.

.WEDNESDAY...
Swim Risk*..................High.
Wave Height.................4 to 6 feet.
Weather.....................Mostly cloudy, then becoming partly
                            cloudy. A chance of sprinkles in the
                            morning, then a chance of showers early
                            in the afternoon.
High Temperature............In the mid 70s.
Winds.......................North winds around 15 mph with gusts up
                            to 25 mph.

.SWIM RISK OUTLOOK...
.WEDNESDAY NIGHT...High swim risk*.
.THURSDAY...High swim risk*.
.THURSDAY NIGHT...Low swim risk*.
.FRIDAY...Low swim risk*.
.FRIDAY NIGHT...Low swim risk*.
.SATURDAY...Low swim risk*.

&&

Swim Risk Category
* Low Risk - Large waves and dangerous currents are not expected,
however dangerous currents may exist at any time near piers,
breakwalls, and river outlets.
* Moderate Risk - Breaking waves and currents are expected. Stay away
from dangerous areas like piers, breakwalls, and river outlets.
Always have a flotation device with you in the water.
* High Risk - Life-threatening waves and currents are expected. Stay
out of the water and stay away from dangerous areas like piers and
breakwalls.

** For thunderstorm, waterspout, and UV definitions see:
https://www.weather.gov/beach/lot

$$

INZ002-200915-
Porter-
Including the beaches of Indiana Dunes National Park
824 PM CDT Tue Aug 19 2025

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

.TONIGHT...
Swim Risk*..................High.
Wave Height.................4 to 6 feet.
Weather.....................Partly cloudy. A chance of sprinkles in
                            the late evening and overnight.
Low Temperature.............In the upper 60s.
Winds.......................North winds 10 to 20 mph.

.WEDNESDAY...
Swim Risk*..................High.
Wave Height.................4 to 6 feet.
Weather.....................Mostly cloudy, then becoming partly
                            cloudy. A chance of sprinkles until
                            late afternoon.
High Temperature............In the mid 70s.
Winds.......................North winds around 15 mph with gusts up to
                            25 mph.

.SWIM RISK OUTLOOK...
.WEDNESDAY NIGHT...High swim risk*.
.THURSDAY...High swim risk*.
.THURSDAY NIGHT...Low swim risk*.
.FRIDAY...Low swim risk*.
.FRIDAY NIGHT...Low swim risk*.
.SATURDAY...Low swim risk*.

&&

Swim Risk Category
* Low Risk - Large waves and dangerous currents are not expected,
however dangerous currents may exist at any time near piers,
breakwalls, and river outlets.
* Moderate Risk - Breaking waves and currents are expected. Stay away
from dangerous areas like piers, breakwalls, and river outlets.
Always have a flotation device with you in the water.
* High Risk - Life-threatening waves and currents are expected. Stay
out of the water and stay away from dangerous areas like piers and
breakwalls.

** For thunderstorm, waterspout, and UV definitions see:
https://www.weather.gov/beach/lot


$$