A combination of El Nino, climate change, a heat dome, and other factors cooked up Tropical Storm Hilary.
over the nation’s midsection and other factors cooked up Tropical Storm Hilary’s record-breaking slosh into California and Nevada, scientists figure.
It’s one of the most active birthing places for tropical cyclones, Corbosiero said. But the water — fuel for the heat engine that is a hurricane – was about 3.5 to 5 degrees Fahrenheit hotter than normal at the surface and that warmth went deep, said UCLA western weather scientist Daniel Swain. The water was warm both because of the natural El Nino, a warming of parts of the equatorial Pacific that changes weather worldwide, and because of long-term climate change that has been shattering records for heat deeper in the oceans, scientists said.
The normal atmosphere in California is also a hurricane killer. It’s dry and has downward motion, while storms like upward motion, Swain said. Hot air to the east and a low-pressure system to the west combined to push and pull Hilary up into California instead of the normal paths for eastern Pacific storms, Corbosiero and other scientists said. And a big hot air mass sitting over the middle United States blocked the storm from turning east.
Last October, MIT hurricane scientist Kerry Emanuel was at UCLA giving a guest lecture on the rare chance of a tropical storm or hurricane hitting Los Angeles. His computer models, factoring in climate change and other ingredients, found that the type of storm that would dump 15.7 inches of rain on downtown Los Angeles used to have a one-in-108-year chance of happening, at least until 2010. But now that type of storm has a one-in-30-year chance, he figured.
Belgique Dernières Nouvelles, Belgique Actualités
Similar News:Vous pouvez également lire des articles d'actualité similaires à celui-ci que nous avons collectés auprès d'autres sources d'information.
Tropical Storm Hilary lashes Mexico with 70 mph winds as US braces for 'dangerous' floodsForecasters have warned of life-threatening and 'catastrophic' flooding in the US South West and expect Hilary to become the first tropical storm to hit Southern California in 84 years
Lire la suite »
California braces as Tropical Storm Hilary makes landfall in MexicoForecasters say the storm is expected to enter the history books as the first tropical storm to hit southern California in 84 years.
Lire la suite »
Tropical Storm Hilary Could Cause Life Threatening FloodingThe storm expected to bring moderate to high flash flooding.
Lire la suite »
Hilary becomes a tropical storm, as Mexico and California brace for deadly rainfallMeteorologists say now Tropical Storm Hilary held a maximum sustained wind speed of 80 mph early Sunday as the storm was 285 miles from San Diego.
Lire la suite »
Tropical Storm Hilary packs deadly rainfall along Mexico’s Baja coastForecasters say the storm is expected to enter the history books as the first tropical storm to hit southern California in 84 years.
Lire la suite »
Tropical Storm Hilary packs deadly rainfall along Mexico’s Baja coastForecasters say the storm is expected to enter the history books as the first tropical storm to hit southern California in 84 years.
Lire la suite »