Extreme weather events, such as typhoons, floods and lightning storms, often occur in regions that are already highly exposed to adverse weather conditions. Many of these countries lack the preparedness and infrastructure to deal with extreme weather events in a safe manner. Vietnam with its population of more than 90 million citizens and 3,500 kilometres of coastline is an example of a country where weather and climate has a substantial impact on the safety of people and livelihoods.
In 2016, Vaisala announced that it will deliver a comprehensive weather observation network to the National Hydro-Meteorological Service of Vietnam. In this project Vaisala will establish a high quality nation-wide meteorological infrastructure in the country. This includes weather radar and lightning detection networks, software toolkit for weather forecasting supplied by the Finnish Meteorological Institute as well as training and spare parts. The funding of the contract is arranged through the Finnish Concessional Credit instrument provided to National Hydro-Meteorological Service of Vietnam. This instrument is part of Finland's development cooperation portfolio, governed by the Ministry for Foreign Affairs of Finland. When complete, the National Hydro-Meteorological Service of Vietnam will have the capabilities needed to ensure that the whole nation is served with high quality meteorological data and weather forecasts.
Improving forecasts is extremely important also in industrialized countries. For example, in a 2008 study, it was discovered that having 12 hours warning of a flood in the US meant that, on average, the amount of damage was reduced by 60 per cent. When that warning time was reduced to two hours, the damage reduction fell to 20 per cent. A 2014 study found that Switzerland's transport sector could save between $56.1 million and $60.1 million by using meteorological data.