Weather Warnings Samoa

Samoa Weather Alerts

Cyclone Evan meets Samoa | News The tropical hurricane Evan is the first cycle of the South Pacific tropical season. On Thursday the wind hit the Samoan capitol Apia with persistent wind speeds of more than 110 km/h. Tempest and tide warnings are still in effect here and a recent tidal wave of up to 4.5 meters was registered on the Samoan coastline.

Telephone and power cables have failed in large parts of the countryside, and visitors to the Aleipata region in south-eastern Samoa have escaped from the coastline to higher elevations. It has also been reported that three lives were lost in the hurricane, but this has not yet been verified by the Samoa Polisda.

At first the gale was to move towards Pago Pago in American Samoa, and here the preparation for the gale was made. But at the last moment the wind made a good turn. He crawled north and intensified as it rained more deluge-like rains over Samoa. The Faleolo airport announced 103 mm of precipitation in the 24 hour to 0600 on Thursday, but it is anticipated that more precipitation will fall elsewhere on the isles.

Continuing breezes are currently forecast at 185 km/h, with squalls of up to 230 km/h. On Sunday, Fiji will be directly affected, with the wind still rising at around 175 km/h with harmful storms of 210 km/h. It is too early, however, to say whether Evan will have a real influence on the entire isle.

What are the early warning systems for tsunamis?

Two National Weather Service National Weather Service centres in the USA issue early warnings of tsunamis. NTWC is the National Tsunami Monitoring Center (NTWC), which oversees earthquake and provides information, clocks, warnings and warnings for Alaska, the U.S. Continent, the Atlantic and Gulf of Mexico, Canada and the interests of the United States in the Caribbean (Puerto Rico and the U.S. Virgin Islands)[1,2,3].

Like Hawaii, almost every Philippine nation, most Caribbean islands, states on the South China Sea, other US interests and many Caribbean countries[3], the Tsunami Warning Center (PTWC) offers similar warns. Warnings are issued in the Indian Ocean by local agencies in Australia, India and Indonesia[3].

In order to alert as early as possible, early warning of tsunamis is usually solely seismically informed, identifying the site and size of the earthquake[4,5]. The information from ocean meters and off-shore buoys confirm the presence or otherwise of a tsunami[6]. Information from seasonal weather conditions, ocean levels and buoys will then be used to create modeling tools that predict the time of tsunamis arrivals and assess their impact on the coast[6].

They help alert centres to refresh or delete warnings as they find out more about the quake and the resulting tsunami[6]. Alerts are sent in the USA to national weather services on the coast and to civil servants and municipalities[1]. Several channels of communications, such as the Distress Alert System[7] and the siren, are used to inform the general population and to stimulate the evacuation of low-lying coastlines.

USGS works in close cooperation with the National Oceanic and Atmospheric Administration (NOAA) through the NOAA Center for tsunami research and has improved seismographic technologies through the National Tsunami Hazard Mitigation Program[8].

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