Station 45187 – WINTHROP HARBOR BUOY, IL

May 9, 2026 5:00 am CST
Location: 42.491N 87.779W or 74 nautical miles WSW of search location of 43.02N 86.27W.
Significant Wave Height: 1 ft
Dominant Wave Period: 3 sec
Mean Wave Direction: SE (143°)
Atmospheric Pressure: 29.76 in (1007.9 mb)
Pressure Tendency: -0.03 in (-0.9 mb)
Water Temperature: 46°F (8.0°C)