North Carolina Extreme Heat Warning Through August 18: Who to Check On and When to Call 911

An Extreme Heat Warning is in effect for five eastern North Carolina counties starting August 17 at 2:34 PM EDT and running through August 18 at 8:00 PM EDT. The warning covers Mainland Dare, Jones, Duplin, Columbus, and Bladen counties. It was issued jointly by the National Weather Service Newport/Morehead City, NC and NWS Wilmington, NC, two offices that together cover the coastal and inland regions now under the highest heat alert classification the agency issues.

An Extreme Heat Warning is not a routine advisory. It signals that heat conditions have reached a threshold the National Weather Service considers dangerous to human life. Residents in the five affected counties should treat this warning as an active emergency situation from now through the evening of August 18.

What NWS Is Telling Residents to Do Right Now

The official NWS instruction is direct: drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. That last point carries real urgency. Elderly adults, young children, and people without reliable access to air conditioning are the most vulnerable during extreme heat events, and they are often the least likely to ask for help. If you have a neighbor who lives alone or a relative in one of these five counties, a phone call or an in-person check is not optional courtesy right now. It is a protective action the National Weather Service is specifically asking for.

For anyone who must work or spend time outdoors, the Occupational Safety and Health Administration guidance referenced in the NWS alert recommends scheduling frequent rest breaks in shaded or air-conditioned environments. This applies to construction workers, agricultural workers, landscapers, and anyone else whose job or circumstances put them outside during the warning period. Brief, consistent breaks in a cool location are not a luxury during an Extreme Heat Warning. They are the primary strategy for avoiding a medical crisis.

The NWS alert is equally clear about what to do if someone collapses or becomes unresponsive from the heat: move the person to a cool, shaded location immediately, and call 911. Heat stroke is a medical emergency. It can cause organ failure and death within minutes if not treated. Do not wait to see if the person improves on their own. The moment someone is overcome by heat, the response is the same as any other life-threatening emergency: call 911 and get them cool while help is on the way.

Connecting This Warning to Longer-Term Preparedness

Extreme heat is the deadliest weather hazard in the United States on an annual basis, yet it rarely receives the same preparedness attention as hurricanes or flooding. Eastern North Carolina residents are well practiced at storm readiness, but heat emergencies require a different set of actions: knowing where the nearest public cooling center is, keeping fluids stocked before temperatures peak, and maintaining a short list of neighbors and family members to check on when warnings are issued. If your household does not yet have a heat-specific plan, the window between now and the August 18 expiration of this warning is a useful moment to build one. The US Risk Radar preparedness library covers heat planning year-round, because warnings like this one do not arrive with much lead time, and the households that respond well are almost always the ones that planned in advance.

For the latest updates, monitor the National Weather Service at weather.gov and follow guidance from NWS Newport/Morehead City and NWS Wilmington as conditions develop through August 18.

For the fundamentals that apply beyond this specific alert, see our Extreme Heat Preparedness guide.

Source: National Weather Service (NWS Newport/Morehead City NC, NWS Wilmington NC). Active alert data retrieved 2026-08-17 22:00 UTC via api.weather.gov.