Thresholds for Extreme Heat
Below are preliminary Heat Index (HI) thresholds for extreme heat, organized by North Carolina Disease Event Tracking and Epidemiological Collection Tool (NCDETECT) region*.
These thresholds will be updated as more data become available.
| Group | NCDETECT Region | Heat Index Threshold (°F) |
| 1 | NENC | 101 |
| 2 | SENC | 103 |
| 3 | FAY | 102 |
| 4 | RTP | 100 |
| 5 | TRIAD | 99 |
| 6 | WNC | 94 |
| 7 | CLT | 101 |
*Appropriate NCDETECT groupings for each jurisdiction can be obtained from the map below:
