"A warning is typically issued 36 hours before the anticipated first occurrence of tropical-storm-force winds, conditions that make outside preparations hard or unsafe", the warning states.
As of 11 a.m. Tuesday, Hurricane Florence had maximum sustained winds of about 130 miles per hour, a slight weakening from earlier the morning. "It's an extremely risky, life-threatening, historic hurricane ... the forecast shows Florence stalling over North Carolina, bringing days and days of rain".
Astonishing winds aren't the biggest danger.
All signs pointed to a stronger, slower, wider and wetter hurricane in the days ahead, forecasters said. Clearly, though, some recent storms would qualify, most notably Patricia but also 2013's Supertyphoon Haiyan and several others.
Florence "will bring extreme wind damage and surge damage, " said Jeff Masters, co-founder of Weather Underground in Ann Arbor, Michigan.
National Hurricane Center Director Ken Graham warned that Florence is expected to linger once onshore, downing trees, knocking out electricity and causing widespread flooding.
Aside from that mammoth coastal flooding, Florence will likely inundate cities far inland as well.
However, Hubbard said Florence is not expected to have any impact on Canada, given its predicted track into the US mainland, where it will likely weaken considerably on the weekend. The model appears to show the hurricane stalling, dumping rain as it sits on the state's edge.
Florence could be only the second Category 4 storm to pummel the Carolinas since 1800, when record-keeping began. "So this is not just going to be a coastal threat".
In a statement, NC State said it worked with officials from West Virginia University, the ACC and emergency management personnel to "arrive at a decision in the best interests of the safety and well-being of fans, student-athletes and all parties involved".
"The reason there are going to be more major hurricanes is not necessarily there are going to be that many more storms.it's really the fact that those storms are going to get there faster", said Kieran Bhatia, lead author of the new research in the Journal of Climate.
What's worse: Much of the Carolinas are already saturated from rainfall. So the land can't absorb much more water. That means high rainfall totals and consequent inland flooding could become a huge concern.
The storm threatened to hit coastal North and SC with 130 mile-per-hour (215 kph) winds and massive waves when it makes landfall on Friday, and its rains will take a heavy toll for miles inland, the National Hurricane Center in Miami warned.
The storm is expected to stall over North Carolina, slowly making its way across the state and into southwestern Virginia over the weekend.
"This emergency declaration is needed to address anticipated emergency conditions in the affected states and jurisdictions creating a need for immediate transportation of supplies, equipment and persons, and provides necessary relief", FMCSA said in its notice.
"People need to make sure they have enough food, water, any medications they need, lights and batteries", he said.
It's unclear when the UCF-North Carolina and West Virginia-North Carolina State games could be rescheduled after Hurricane Florence, if at all.
"We're a resilient bunch down here".
"It's going to keep any of that rain from this system away from us until the beginning of next week", Hubbard said. "But this is pretty serious". Officials are urging residents in coastal and low-lying areas to prepare for strong winds, a deep storm surge and a very prolonged deluge of rainfall.