More than 20 million people have been ordered to evacuate East Coast of the Us. The states of North and South Carolina along with parts of Virginia and Georgia.
We are looking at a category 4 hurricane named Florence. The hurricane is expected to arrive late Thursday and Friday. It is expected to last about 48 hours. Storm surges are also expected. This is a very dangerous storm, the strongest in 3 decades.
The Saffir-Simpson Hurricane Wind Scale is a 1 to 5 rating based on a hurricane’s sustained wind speed. This scale estimates potential property damage.
Hurricanes reaching Category 3 and higher are considered major hurricanes because of their potential for significant loss of life and damage. Category 1 and 2 storms are still dangerous. Below the categories of hurricanes are mentioned.
The North Carolina governor described the storm “a monster”.
Category 1: 74-95 mph
Very dangerous winds will produce some damage: Well-constructed frame homes could have damage to roof, shingles, vinyl siding and gutters. Large branches of trees will snap and shallowly rooted trees may be toppled. Extensive damage to power lines and poles likely will result in power outages that could last a few to several days.
Category 2: 96-110 mph
Extremely dangerous winds will cause extensive damage: Well-constructed frame homes could sustain major roof and siding damage. Many shallowly rooted trees will be snapped or uprooted and block numerous roads. Near-total power loss is expected with outages that could last from several days to weeks.
Category 3: 111-129 mph
Devastating damage will occur: Well-built framed homes may incur major damage or removal of roof decking and gable ends. Many trees will be snapped or uprooted, blocking numerous roads. Electricity and water will be unavailable for several days to weeks after the storm passes.
Category 4: 130-156 mph
Catastrophic damage will occur: Well-built framed homes can sustain severe damage with loss of most of the roof structure and/or some exterior walls. Most trees will be snapped or uprooted and power poles downed. Fallen trees and power poles will isolate residential areas. Power outages will last weeks to possibly months. Most of the area will be uninhabitable for weeks or months.
Category 5: 157 mph or higher
Catastrophic damage will occur: A high percentage of framed homes will be destroyed, with total roof failure and wall collapse. Fallen trees and power poles will isolate residential areas. Power outages will last for weeks to possibly months. Most of the area will be uninhabitable for weeks or months.
This morning, a high definition camera outside of the @Space_Station captured a stark and sobering view of #HurricaneFlorence as it churned across the Atlantic with winds of 130 miles an hour. Take a closer look: https://t.co/IWZCzy2ZLV pic.twitter.com/9gIJ8PA8ng
— NASA (@NASA) September 12, 2018