Live conditions for Tacoma, Gig Harbor, Olympia, Hood Canal & the South Sound — weather and tides together for the Sound's protected southern waters.
South Sound tidal patterns differ significantly from central and north Sound — more restricted tidal exchange means different timing and amplitudes. Helm WX shows both NOAA tide predictions and live weather data side by side, tuned to your exact location in the South Sound.
NOAA maintains real-time weather stations at Tacoma, Olympia, and across the South Sound. Helm WX pulls live observations — not model output — from these stations, plus NDBC buoy data for wave conditions that reach through the Narrows from central Sound.
Whether you're launching at Gig Harbor, checking the Narrows before a transit, or planning a Hood Canal cruise, Helm WX loads instantly on any phone — no download, no account, no subscription.
South Puget Sound covers all navigable waters south of the Tacoma Narrows Bridge — NOAA Marine Area 13. These are generally more protected than the north Sound — popular for small-boat cruising, kayaking, and shellfishing. But "protected" doesn't mean easy.
The Tacoma Narrows is the gateway — a dramatic channel with tidal currents that can reach 5+ knots at peak spring ebb, reversing direction every 6 hours. The first Narrows Bridge (the original "Galloping Gertie") famously collapsed in 1940 due to resonance induced by wind; the current bridges stand 160 feet above the water. Timing a Narrows transit with tidal current — or against it — makes a real difference in travel time and fuel burn.
South of the Narrows: Gig Harbor (a protected fjord-like port — one of the finest small-boat harbors in the PNW), Olympia (the southernmost navigable water on Puget Sound), and dozens of inlets including Nisqually Reach and Case Inlet. Tidal flat exposure at low water is extensive in the southern reaches.
Hood Canal deserves its own respect. A 60-mile fjord-like arm off the main Sound basin, Hood Canal has its own microclimate, dramatic outflow winds through the Hoodsport Gap in winter, and a summer low-oxygen zone that creates unique water quality conditions. The Hood Canal Floating Bridge (Hwy 101) is the only road crossing — watch for clearance heights if you're masting up. NOAA maintains a real-time station at Hoodsport for live data.
Real-time wind, waves, and tides for Tacoma, Gig Harbor, Olympia, and Hood Canal — all in one free tool. No signup, no app, no cost.
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