Volte-face no GFS para dia 28,
Valha-nos o ECMWF a médio prazo,
Valha-nos o ECMWF a médio prazo,
We find that atmospheric rivers are associated with up to half of the extreme events in the top 2% of the precipitation and wind distribution, across most mid-latitude regions globally. Landfalling atmospheric rivers are associated with about 40–75% of extreme wind and precipitation events over 40% of the world’s coastlines. Atmospheric rivers are associated with a doubling or more of the typical wind speed compared to all storm conditions, and a 50–100% increase in the wind and precipitation values for extreme events. We also find that the majority of extreme wind events catalogued between 1997 and 2013 over Europe with billion US dollar losses were associated with atmospheric rivers. We conclude that landfalling atmospheric rivers can represent a significant hazard around the globe, because of their association with not only extreme precipitation, but also extreme winds.
Atmospheric rivers that make landfall have a greater potential for destruction. The researchers examined the most destructive windstorms of the last 20 years -- the top 2 percent in terms of wind speeds near Earth's surface. They found that atmospheric rivers were associated with up to half of these storms along the world's mid-latitude coastlines. Often, the highest wind speed ever recorded on a coastline was associated with an atmospheric river storm.
To get an idea of the potential economic consequences of these storms, Waliser and Guan consulted a database of the 19 most expensive European windstorms, in terms of insurance losses, between 1997 and 2013. They found that atmospheric rivers were associated with 14 (about 75 percent) of these events. Together, these 14 storms accounted for more than $25 billion in insured losses.
Quantidade de precipitação absurda para o próximo fum de semana.