240
FZUS53 KLOT 171532
SRFLOT

Surf Zone Forecast for Lake Michigan Beaches
National Weather Service Chicago IL
1032 AM CDT Thu Jul 17 2025

ILZ006-172130-
Lake-
Including the beaches of Illinois Beach State Park
1032 AM CDT Thu Jul 17 2025

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

.REST OF TODAY...
Swim Risk*..................High.
Wave Height.................3 to 5 feet building to 4 to 6 feet.
Water Temperature...........70-74.
Weather.....................Mostly cloudy.
High Temperature............In the upper 60s.
Winds.......................North winds 10 to 15 mph.

.TONIGHT...
Swim Risk*..................High.
Wave Height.................4 to 6 feet.
Weather.....................Partly cloudy.
Low Temperature.............In the mid 60s.
Winds.......................Northeast winds 10 to 15 mph.

.FRIDAY...
Swim Risk*..................High.
Wave Height.................3 to 5 feet subsiding to 1 to 3 feet.
Weather.....................Partly cloudy, then becoming mostly
                            sunny.
High Temperature............In the mid 70s.
Winds.......................East winds 5 to 10 mph.

.SWIM RISK OUTLOOK...
.FRIDAY NIGHT...Low swim risk*.
.SATURDAY...Low swim risk*.
.SATURDAY NIGHT...Low swim risk*.
.SUNDAY...Low swim risk*.
.SUNDAY NIGHT...Low swim risk*.
.MONDAY...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

$$

ILZ103-104-172130-
Northern Cook-Central Cook-
Including the beaches of Chicago Park District
1032 AM CDT Thu Jul 17 2025

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

.REST OF TODAY...
Swim Risk*..................High.
Wave Height.................3 to 5 feet building to 4 to 6 feet.
Water Temperature...........70-74.
Weather.....................Mostly cloudy.
High Temperature............In the lower 70s.
Winds.......................North winds 10 to 15 mph.

.TONIGHT...
Swim Risk*..................High.
Wave Height.................4 to 6 feet.
Weather.....................Partly cloudy.
Low Temperature.............In the mid 60s.
Winds.......................Northeast winds 10 to 15 mph.

.FRIDAY...
Swim Risk*..................High.
Wave Height.................3 to 5 feet subsiding to 1 to 3 feet.
Weather.....................Mostly sunny, then becoming partly
                            cloudy.
High Temperature............In the upper 70s.
Winds.......................East winds 5 to 10 mph.

.SWIM RISK OUTLOOK...
.FRIDAY NIGHT...Low swim risk*.
.SATURDAY...Low swim risk*.
.SATURDAY NIGHT...Low swim risk*.
.SUNDAY...Low swim risk*.
.SUNDAY NIGHT...Low swim risk*.
.MONDAY...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

$$

INZ001-172130-
Lake-
Including the beaches of Indiana Dunes National Park
1032 AM CDT Thu Jul 17 2025

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

.REST OF TODAY...
Swim Risk*..................High.
Wave Height.................4 to 6 feet.
Water Temperature...........70-74.
Weather.....................Mostly cloudy.
High Temperature............In the lower 70s.
Winds.......................North winds 10 to 15 mph.

.TONIGHT...
Swim Risk*..................High.
Wave Height.................4 to 7 feet.
Weather.....................Mostly cloudy, then becoming partly
                            cloudy.
Low Temperature.............In the mid 60s.
Winds.......................Northeast winds 10 to 15 mph,
                            diminishing to 5 to 10 mph late.

.FRIDAY...
Swim Risk*..................High.
Wave Height.................3 to 5 feet subsiding to 1 to 3 feet.
Weather.....................Mostly sunny, then becoming partly
                            cloudy.
High Temperature............In the upper 70s.
Winds.......................East winds around 5 mph.

.SWIM RISK OUTLOOK...
.FRIDAY NIGHT...Low swim risk*.
.SATURDAY...Low swim risk*.
.SATURDAY NIGHT...Low swim risk*.
.SUNDAY...Low swim risk*.
.SUNDAY NIGHT...Low swim risk*.
.MONDAY...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

$$

INZ002-172130-
Porter-
Including the beaches of Indiana Dunes National Park
1032 AM CDT Thu Jul 17 2025

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

.REST OF TODAY...
Swim Risk*..................High.
Wave Height.................4 to 7 feet.
Water Temperature...........70-74.
Weather.....................Cloudy.
High Temperature............In the lower 70s.
Winds.......................North winds around 15 mph.

.TONIGHT...
Swim Risk*..................High.
Wave Height.................4 to 7 feet.
Weather.....................Mostly cloudy, then becoming partly
                            cloudy.
Low Temperature.............In the mid 60s.
Winds.......................Northeast winds 10 to 15 mph, becoming
                            east around 5 mph late.

.FRIDAY...
Swim Risk*..................High.
Wave Height.................3 to 5 feet subsiding to 1 to 3 feet.
Weather.....................Mostly sunny, then becoming partly
                            cloudy.
High Temperature............In the upper 70s.
Winds.......................East winds around 5 mph.

.SWIM RISK OUTLOOK...
.FRIDAY NIGHT...Low swim risk*.
.SATURDAY...Low swim risk*.
.SATURDAY NIGHT...Low swim risk*.
.SUNDAY...Low swim risk*.
.SUNDAY NIGHT...Low swim risk*.
.MONDAY...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


$$