Sally is expected to become a Category 1 hurricane on the Saffir-Simpson Hurricane Wind Scale, which rates hurricanes based on their sustained wind speed. However, AccuWeather meteorologists say Sally's impacts will go beyond damaging winds and are notably concerned about life-threatening flooding that the storm could produce. Because of the wind and rain impacts combined, Sally has been rated a 2 on the AccuWeather RealImpact™ Scale for Hurricanes.

The AccuWeather RealImpact™ Scale for Hurricanes is a 6-point scale with ratings of less than one and 1 to 5 that was introduced by AccuWeather in 2019 to rate tropical systems based on multiple impacts, rather than just wind, like the Saffir-Simpson Wind Scale does.

Sally Live Blog

Sally's outer bands are already lashing parts of the northern Gulf Coast and conditions are expected to deteriorate by late Monday as the storm produces a life-threatening storm surge, hurricane-force winds and flash flooding.

State of emergency declarations have already been issued by Louisiana Gov. John Bel Edwards and Mississippi Gov. Tate Reeves ahead of Sally's arrival. "This when combined with the COVID-19 pandemic, can make us all weary," Edwards said on Twitter. "I implore Louisianans to take their preparations seriously."

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