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Heat Advisory

◍ Stewart · USA · updated 8/17/2026, 10:31:00 AM

⏱ In effect until 7:00 PM UTC-5

Severity score

65/100

Confidence

High

Why this matters

* WHAT...Heat index values of 105 degrees or greater * WHERE...A portion of Middle Tennessee. * WHEN...Until 7 PM CDT this evening. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses.

Key stats

Severity

Moderate

Certainty

Likely

Urgency

Expected

Severity over time

Timeline

Heat Advisory
8/17/2026, 10:31:00 AM
Heat Advisory issued August 17 at 5:31AM CDT until August 17 at 7:00PM CDT by NWS Nashville TN

Sources & attribution

OfficialNWS NWS Nashville TNupdated 8/17/2026, 10:31:00 AM

OfficialNWS NWS Las Vegas NVupdated 8/17/2026, 9:14:00 AM

OfficialNWS NWS Wilmington NCupdated 8/17/2026, 6:22:00 AM

OfficialNWS NWS New Orleans LAupdated 8/17/2026, 6:06:00 AM

OfficialNWS NWS Newport/Morehead City NCupdated 8/17/2026, 6:01:00 AM

OfficialNWS NWS Norman OKupdated 8/17/2026, 5:52:00 AM

OfficialNWS NWS Charleston SCupdated 8/17/2026, 5:47:00 AM

OfficialNWS NWS San Juan PRupdated 8/17/2026, 5:14:00 AM

OfficialNWS NWS Little Rock ARupdated 8/17/2026, 4:44:00 AM

OfficialNWS NWS Tampa Bay Ruskin FLupdated 8/17/2026, 4:40:00 AM

OfficialNWS NWS Mobile ALupdated 8/17/2026, 4:38:00 AM

OfficialNWS NWS Tulsa OKupdated 8/17/2026, 4:25:00 AM

OfficialNWS NWS Melbourne FLupdated 8/17/2026, 4:10:00 AM

OfficialNWS NWS Memphis TNupdated 8/17/2026, 1:41:00 AM

OfficialNWS NWS Jackson MSupdated 8/16/2026, 7:29:00 PM

OfficialNWS NWS Los Angeles/Oxnard CAupdated 8/16/2026, 7:21:00 PM

OfficialNWS NWS Lake Charles LAupdated 8/16/2026, 4:31:00 PM

OfficialNWS NWS Tallahassee FLupdated 8/16/2026, 4:03:00 PM

⚠This is an informational severity score, not an official warning. Follow guidance from NWS/NOAA, FEMA (ready.gov), and local emergency management.