Hurricane Sally accumulated steam Monday as it moved west toward coastal Louisiana, Mississippi, and Alabama.
The slow-moving storm strengthened to a Category 2 hurricane mid-morning Monday.
The National Weather Service uses a method called the Saffir-Simpson Hurricane Breeze Scale to Assess the intensity of hurricanes.
The hurricane class scale is from 1 to 5 and is founded upon the continual wind speed of this storm, averaging more than two minutes. The scale helps quote possible property damage.
• Category 1 74-95 miles: “Quite dangerous winds will create some harm: Well-constructed frame houses may have damage to roofing, tiles, vinyl siding and gutters. Huge branches of trees will snap and shallowly rooted trees could be toppled. Extensive damage to power lines and rods likely will lead to power outages that may last a couple to several days”
• Category 2 96-110 miles: “Incredibly dangerous storms will cause considerable damage: Well-constructed framework houses could sustain significant siding and roof damage. Several rooted trees will be snapped or uprooted and obstruct many streets. Near-total energy reduction is anticipated with outages that may last from a few days to weeks”
• Category 3 111-129 miles: “Devastating harm will happen: Well-built framed houses may incur significant damage or elimination of roof decking and gable ends. Electricity and water will be inaccessible for many days to weeks following the storm passes.”
• Category 4 130-156 miles: “Catastrophic damage will happen: Well-built framed houses can sustain serious damage with loss of the majority of the roof construction and/or some outside walls. Fallen trees and electricity poles will isolate residential places. Power outages will last weeks to maybe months. The majority of the area will be uninhabitable for weeks or even months”
• Category 5 157 mph or greater: “Catastrophic harm will happen: A large proportion of framed houses will be destroyed, with complete roof collapse and wall collapse. Fallen trees and electricity poles will isolate residential places. Power outages will last for weeks to maybe months. The majority of the area will be uninhabitable for weeks or even months”
For example, Hurricane Michael, which made landfall in Florida in 2018, was a Category 5 at landfall and ranks third among the most effective hurricanes to strike the U.S., based on government information.
But, officials with the National Ocean and Atmospheric Administration say it is essential to be aware of the Saffir-Simpson scale steps damage potential from the end just.
“It doesn’t account for different influences such as storm surge, rain, and tornadoes,” stated Dennis Fletcher, a spokesman for the bureau.
To keep track and accounts for other harmful storm affects not related to ending, NOAA currently comprises a Storm Surge Watch and Warning. This”highlights the danger of storm surge, historically the primary cause of deaths in tropical systems,” Feltgen explained.