US Harbors is the #1 Source for Tide Charts and Coastal Information for over 1,400 harbors in 30 coastal states. Our curated data helps you plan smarter, enjoy your time on the water, and stay ahead of rapidly changing tides, storms, and flooding.

 

Tide Charts

US Harbors illustrates tide forecasts with our simple, intuitive charts. Easily scan the highs and lows online or print a convenient monthly tide chart for the boat or office.

Wind speed forecast bar graph

Weather

US Harbors delivers weather predictions with a focus on marine forecasts, buoy data, weather alerts, and onshore forecasts for harbors near you that include wind speed and direction, relative humidity, and more.

High Tide Flooding

Each month, we publish a high-tide flooding report for forecasted harbors across the country. Look for harbors near you to know when extreme high tides could cause flooding. Sign up for our newsletter to be alerted to new high tide flooding reports.

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- Bill P. Long Island, NY

Latest Coastal News Filter

A NOAA satellite view of a massive Hurricane Erin churning off the U.S. East Coast taken August 20, 2025. (Image credit: NOAA Satellites)

NOAA Predicts Below-Normal 2026 Atlantic Hurricane Season

5/25/2026

By noaa.gov, noaa.gov. Early preparation essential to staying safe all season. Forecasters with NOAA’s National Weather Service are predicting a below-normal hurricane season for the Atlantic basin this year. NOAA’s outlook for the 2026 Atlantic hurricane season, which runs June 1 to November 30, predicts a 35% chance of a… SEE MORE

Image of Hurricane Milton from NOAA's GOES-16 satellite on Oct. 8, 2024. (Image credit: NOAA)

National Hurricane Center to Issue New Forecast Cone Graphics for 2026 Hurricane Season

4/10/2026

By noaa.gov, noaa.gov. Other product enhancements include Hawaii Storm Surge Watches & Warnings As part of a suite of product improvements for the 2026 hurricane season [PDF], NOAA’s National Hurricane Center (NHC) is implementing two new tropical products and services: a new operational hurricane track cone map, and new storm surge alerts… SEE MORE

NOAA’s GOES-19 satellite captured images of hurricanes Imelda (left) and Humberto (right) churning off the U.S. East Coast on Sept. 30, 2025. (Image credit: NOAA Satellites)

2025 Atlantic Hurricane Season Marked by Striking Contrasts

11/30/2025

By noaa.gov, noaa.gov. Seasonal activity fell within NOAA’s predicted ranges The 2025 Atlantic hurricane season, which officially ends on November 30, was notable for its striking contrast — wavering between periods of relative calm and bursts of intense activity, generating very powerful storms. Overall, the season fell within the predicted ranges… SEE MORE

Image Credits: NOAA.

Hurricane Erin Demonstrates Critical Maritime Coordination for Port Safety

9/16/2025

Hurricane Erin demonstrated how proactive federal coordination successfully protected East Coast ports and maritime traffic from distant storm threats. Image Credits: NOAA. In “Hurricane Erin Demonstrates Critical Maritime Coordination for Port Safety” NOAA, published in noaa.gov. (Sep 10, 2025), it is stated: Hurricane Erin’s passage near the U.S. East Coast… SEE MORE

Image Credits: reasearch.noaa.gov.

NOAA and Partners Deploy Mini Ocean Robots to Collect Hurricane Data

9/4/2025

By research.noaa.gov. The 4-foot-long robots aim to deliver low-cost data for research and forecasting. NOAA, in partnership with The University of Southern Mississippi and with the robotics company Oshen, launched five small uncrewed surface vehicles (USVs) called C-Stars in the waters off the U.S. Virgin Islands on August 31st to collect critical data… SEE MORE

Image Credits: NOAA.

Prediction Remains on Track for Above-Normal Atlantic Hurricane Season

8/19/2025

By noaa.gov. As the 2025 Atlantic Hurricane Season enters its historical peak, atmospheric and oceanic conditions continue to favor an above-normal season as NOAA first predicted in May. Forecasters from NOAA’s National Weather Service updated the number of expected named storms to 13-18 (with winds of 39 mph or greater), of which… SEE MORE

Image Credits: NOAA.

Hurricane Erin Possible Heavy Surf and Rip Currents Along East Coast

8/17/2025

By US Harbors | August 17, 2025   Hurricane Erin Area Forecast Discussion 251 WTNT45 KNHC 170842 TCDAT5 Hurricane Erin Discussion Number 24 NWS National Hurricane Center Miami FL AL052025 500 AM AST Sun Aug 17 2025 Satellite and Doppler Radar data from San Juan indicate that Erin is going through… SEE MORE

Image Credits: NOAA.

Tropical Storm Erin Becomes First Atlantic Hurricane of 2025, Prompting Regional Port Closures

8/17/2025

By UH Harbor. Image Credits: Wikimedia Commons. Key Takeaways from Hurricane Erin Advisory 24 (August 17, 2025) Immediate Threats (Today – Monday) Heavy Rainfall and Flooding Continued heavy rainfall across Virgin Islands and Puerto Rico today Risk of flash flooding, urban flooding, landslides, and mudslides Rainfall amounts of 4-6+ inches… SEE MORE

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