wweather1
wweather1 wweather1
HomeWeather news → Extreme Heat Warning Issued for Portions of North and South Carolina
🔥 Heat United States

Extreme Heat Warning Issued for Portions of North and South Carolina

August 17, 2026 · wweather1 editorial · 1 min read

The National Weather Service in Wilmington, NC, has issued an Extreme Heat Warning for portions of southeast North Carolina and northeast South Carolina, bringing dangerously hot conditions and high humidity.

The National Weather Service issued the Extreme Heat Warning on August 17 at 2:21 PM EDT. The warning remains in effect until August 18 at 8:00 PM EDT.

Dangerously hot conditions are expected, with heat index values reaching up to 112 for the first Extreme Heat Warning. For the second Extreme Heat Warning, heat index values are expected to reach up to 110.

Affected areas include Columbus, Inland Pender, Coastal Pender, Inland New Hanover, Coastal New Hanover, Inland Brunswick, Coastal Brunswick, Williamsburg, Coastal Horry, Inland Georgetown, Coastal Georgetown, Central Horry, and Northern Horry.

Health impacts associated with these conditions include a significant increase in heat-related illnesses during extreme heat and high humidity events.

Why it is dangerous and what to do

⚠️ Safety
• Drink plenty of fluids.
• Stay in an air-conditioned room.
• Stay out of the sun.
• Check up on relatives and neighbors.
📊 The numbers, from wweather1 data
Myrtle Beach: now +30°, Clear.
That is 2° above the August climate norm.
The record for this date is +37° (1954).
Three-day forecast: 17 August: +31°/+24° · 18 August: +33°/+26° · 19 August: +35°/+27°
The figures are computed automatically from the Open-Meteo/ERA5 archive — no eyeball estimates.

🌍 Weather in nearby cities

📰 Data source: NWS. Forecast and analysis — wweather1, based on Open-Meteo / met.no data.

Other weather news