National Weather Service United States Department of Commerce

Major Winter Storm to Impact the Central and Eastern U.S. Through this Weekend

An impactful Pacific storm will move east and redevelop into a significant winter storm. Heavy snow to the north of this storm and heavy rain to the south with freezing rain at the junction will form over the Central U.S. Friday. This system shifts into the Eastern States on Saturday with heavy snow from the Midwest to the Northeast, and heavy rain from the Mid-South to the Mid-Atlantic. Read More >

Caribbean Tsunami Ready Pilot Project

Following the successful implementation by the US National Weather Service of its TsunamiReady® program, the UNESCO IOC and the NWS with the Intergovernmental Coordination Group for the Tsunami and other Coastal Hazards for the Caribbean and Adjacent regions began in 2011 a pilot project for the recognition of non US communities in the Caribbean as TsunamiReady.

In December 2011 Anguilla was recognized as the first joint UNESCO IOC-NWS TsunamiReady community. Anguilla was followed by the British Virgin Islands in 2014.  

In 2015 UNESCO IOC CARIBE EWS approved the Performance Based Community Recognition Program, Tsunami Ready.  The guidelines are also being piloted in other ocean basins with the goal of a harmonized and consistent International Tsunami Ready recognition program. St. Kitts and Nevis, Cedeño (Honduras), British Virgin Islands, Ostional (Costa Rica) and Savaia (Samoa) have received UNESCO recognition under this pilot program.  The guidelines, application and supporting documents can be accessed online

UNESCO/ITIC Tsunami Educational Materials

More than 100 educational documents for tsunami preparedness are available online for public use through the UNESCO/ITIC portal. The virtual library  contains a collection of documents intended to promote the dissemination and use of educational materials in Spanish, English, French and other languages that have been produced by ministries of education, national offices of risk management, oceanographic institutes, seismic services, universities, UN agencies and NGOs to help with tsunami risk reduction with both formal and informal education.

Tsunami Guidelines for Port Authorities

This document outlines the preparedness measures that need to be taken by port and harbor authorities, now during and after a tsunami.

Sea Walls and Countermeasures: Technical note of Port and Air Port Research Institute; Japan tsunami.

An English abstract of the Technical Note of the Port and Air Port Research Institute, No. 1231 (pdf)


Schools, playgrounds, hospitals, factories and homes are often built in areas vulnerable to tsunamis. The TsunamiReady Program, developed by the National Weather Service, is designed to help US cities, towns, counties, universities and other large sites in coastal areas reduce the potential for disastrous tsunami-related consequences.  Puerto Rico and the USVI have been recognized as TsunamiReady under this program.

CARIBE WAVE Tsunami Exercises

The purpose of these exercises is to improve the effectiveness of the tsunami warning system along the U.S./Canadian Atlantic and Caribbean coasts. The annual exercise provides an opportunity for emergency management organizations along the Atlantic coast and PR/VI to exercise their operational lines of communications, review their tsunami response procedures, and promote tsunami preparedness.