Hurricane Florence, currently a Category 4 storm, is going through an astonishingly rapid intensification process, and could hit anywhere from the Carolinas to the Mid-Atlantic by Thursday or Friday.

Driving the news: As of 5 pm ET, Hurricane Florence had maximum sustained winds of 140 mph. The official intensity forecast has been raised — now calling for it to peak as a Category 5 storm before weakening slightly as it makes its approach to the coast. All eight of South Carolina's coastal counties will face a mandatory evacuation beginning at noon Tuesday, per The State.

What's happening: Computer models are still projecting a range of landfall locations, so anywhere from South Carolina to Virginia are still in play. This will be a very large storm, with damaging impacts far from the center.

If Florence follows current model projects and official forecasts, it would...

• Be capable of producing 20-30+ inches of rain in the Carolinas and Mid-Atlantic, possibly including the D.C. area. This is a nightmare inland flood scenario.
• Bring hurricane-force winds for more than a day to a swath of land about 350 miles in diameter or greater, extending well inland from the landfall point. 
• Drive one of the largest potential storm surges on record onto the Carolina coast.
• Be one of the strongest hurricanes on record to make landfall in the Carolinas or Mid-Atlantic.
• Make landfall or come closest to land on Thursday-Friday before stalling for up to three days.

Be smart: This could be a major test of how President Trump handles another multifaceted crisis, this time one that is possibly at his literal doorstep.