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Faculty and Staff

Record-Setting Rain and Heat? This Is the New Normal

thermometer showing a temperature above 100 degrees fahrenheit

Editor’s Note: This is a guest post by Kathie Dello, the state climatologist of North Carolina and the director of the North Carolina State Climate Office, which is housed at NC State University. This post is part of a series highlighting ways that NC State is helping us understand, mitigate and prepare for the impacts of climate change.

I’m the director of the North Carolina Climate Office, which is the go-to source for expertise in North Carolina’s climate. But if you call me to ask if there’s a downpour on the way, I probably won’t know the answer off the top of my head. That may seem odd, but it’s because I’m mostly thinking about the climate – and weather is something a little different.

We climate experts all have our favorite analogies for the difference between weather and climate. Weather – or the short-term events a place experiences – is equivalent to your mood. Climate – or average conditions over a longer time period – is your personality. Here in North Carolina, we know our climate is marked by mild winters and hot summers, with no distinct wet season. We can see days swing from 74°F on one day to 45°F the next.

We’re supercharging our atmosphere, like a baseball player on steroids.

However, that analogy about moods and personalities is somewhat imperfect in a rapidly changing world. With climate change, we’re supercharging our atmosphere, like a baseball player on steroids. And even small shifts in our overall climate lead to huge changes in our extremes. As our personality shifts slightly, we see more of those bad mood days – and those moods can be worse than what we’re used to.

We’ve seen some of those personality shifts in the past couple years.

2019 was officially North Carolina’s warmest year in recorded history, per our neighbors in Asheville at NOAA’s National Centers for Environmental Information (NCEI). We are seeing more daily maximum temperature records than minimum temperature records, while our nights have been warming significantly for the past few decades.

And it’s not just the temperature here in North Carolina.

In 2018, North Carolina set an all-time state record for the most precipitation in a year at a single station. The official weather station at Mt. Mitchell – also the highest point east of the Mississippi – measured almost 12 feet of precipitation during the calendar year.

The location’s 139.94” of precipitation was declared the new official record by NCEI in early July. It broke the previous record for Mt. Mitchell by more than three feet.

In other words, North Carolina is changing rapidly.

We no longer get the luxury of talking about climate change as a future problem. It’s a now problem.

Climate change isn’t just a polar bear floating on a lonely piece of ice. It’s changing the conditions that are ideal for growing things like our prized sweet potatoes. It’s threatening the health of our residents, and hurting the people who suffer the most – low-income communities who may not have sufficient access to cooling, or who live in flood prone areas. It’s a social issue.

We can point to the aftermath of Matthew, Florence, and Dorian. Flooding in Asheville. Longer, more intense heat waves in Raleigh. Sunny day flooding in Wilmington. Coastal erosion on the Outer Banks. We no longer get the luxury of talking about climate change as a future problem. It’s a now problem.

The bad news is that this is the new normal for only a short time. We will continue to warm. Our weather will continue to become more extreme. Those heat waves and floods from 2019 may seem insignificant in 2050.

North Carolina is among a few states that is actively preparing for a changing climate. Two recently-released reports – the North Carolina Climate Science Report and the North Carolina Risk and Resilience Plan – tackle pieces of our climate problem. We are looking at a different North Carolina in the coming decades. And we’ll need a global strategy to ultimately change the trajectory that we’re on if we ever want to get back to a “normal” climate that is less extreme.

This post was originally published in NC State News.