Arkansas, Missouri, Tennessee Moderate Heat Advisory | Effective 08/18/2026 21:31

Headline: 
Heat Advisory issued August 18 at 11:31PM CDT until August 19 at 8:00PM CDT by NWS Memphis TN
Event: 
Heat Advisory
Urgency: 
Expected
Effective: 
August 18, 2026 - 9:31pm
Expires: 
August 19, 2026 - 10:15am
Description: 
* WHAT...Heat index values up to 108 degrees expected. * WHERE...Dunklin, Clay, Greene, Pemiscot, and Dyer. * WHEN...From 11 AM to 8 PM CDT Wednesday. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses.
Instruction: 
Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors.
Area Description: 
Clay; Greene; Dunklin; Pemiscot; Dyer
Forcast Office: 
NWS Memphis TN
Sender: 
w-nws.webmaster@noaa.gov