Tri-City Port marine weather forecast
Tri-City Port is a port in United States at 38°43.0′N 90°12.0′W. Today (Sep 15): SSW wind 5–11 kn, from the NOAA GFS run 2026-09-15 06z. The live chart on this page shows current conditions and plans weather-optimized departures from this harbor.
Port facts (NGA World Port Index)| Position | 38°43.0′N 90°12.0′W |
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| Harbor size | Large |
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| Harbor type | River natural harbor |
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| Shelter | Excellent |
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| Channel depth | 3 m |
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| Tide range | 0 m |
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| Time zone | America/Chicago |
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Facilities & services (NGA World Port Index)| Tugs | Assistance and salvage available |
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| Supplies | Fuel oil, diesel, water, provisions |
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| Repairs | Moderate |
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| Medical facilities | Available |
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10-day marine forecast — Tri-City Port
| Date | Wind | Gusts | Waves |
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| SSW 5–11 kn | 27 kn | — |
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| NNE 2–6 kn | 8 kn | — |
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| NW 2–5 kn | 6 kn | — |
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| E 3–6 kn | 11 kn | — |
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| SE 6–6 kn | 12 kn | — |
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| SSW 5–5 kn | 6 kn | — |
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| SSE 5–5 kn | 5 kn | — |
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| N 6–6 kn | 10 kn | — |
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| ESE 6–6 kn | 7 kn | — |
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| NNW 16–16 kn | 29 kn | — |
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Forecast from the NOAA GFS model run , waves from ECMWF WAM. Updated with each model cycle; the live chart below recalculates for your departure time and vessel.
What to watch in the forecast
Across the loaded 10-day outlook, the strongest daily modeled wind reaches 16 kn on Sep 24. Compare the dated model run with official forecasts and warnings before departure.
Frequently asked
How is the weather at Tri-City Port right now?
As of the NOAA GFS run 2026-09-15 06z: SSW wind 5–11 kn. The 10-day outlook is in the forecast table on this page and updates with each model cycle.
How big is the harbor at Tri-City Port?
Tri-City Port is classed as a large harbor (river natural harbor), with excellent shelter in the NGA World Port Index.
How deep is the approach to Tri-City Port?
Per the NGA World Port Index, the entrance channel carries about 3 m. Verify against current official charts before entry.
What restricts entry to Tri-City Port?
Entry is affected by overhead clearance limits. Check the live forecast on this page and official notices before approach.