Tropical Cyclone Yasa has strengthened rapidly in the past 24 hours, from a Category 1 storm on the Saffir-Simpson hurricane scale to a high-end category 4. Winds have increased by 130 kilometers per year. hour at 250 km / h (80-155 miles per hour) and the storm is timid with the strength of category 5.
On the scale used by Australia, Fiji and other South Pacific countries, which is slightly lower than Saffir-Simpson, Yasa is already classified as category 5.
Yasa may strengthen further over the next 12 hours, before weakening slightly as it approaches Fiji in about 36 hours. Still, the storm is expected to be extremely strong when it hits the country on Thursday night (Thursday morning ET).
In addition to winds of more than 200 km / h (125 mph), the storm will also cause rainfall of more than 250 mm (10 inches), which can cause flooding and landslides. The extreme intensity of the storm will cause a very rough sea and a storm surge capable of flooding low coastal communities.
The scale calculates possible property damage and NOAA warns that even well-built homes can suffer “severe damage” as a result of winds in excess of 200 km / h, while trees and electric poles could be torn down. causing more destruction and disruption.
As Yasa falls on Fiji, another tropical cyclone, Zazu, has just passed northern Tonga, but caused little or no impact on the islands.
Zazu is equivalent to a strong tropical storm with winds of 100 km / h (62 mph). There are no additional land masses in its path and the storm is expected to dissipate over the next day or two.
With each additional degree of average global warming, the scale and frequency of forest fires will increase exponentially, as will the intensity of heat-driven tropical cyclones, ”Bainimarama said.
CNN’s James Griffiths helped report from Hong Kong.