Texas Moderate Heat Advisory | Effective 06/18/2026 18:56

Headline: 
Heat Advisory issued June 18 at 8:56PM CDT until June 19 at 8:00PM CDT by NWS Corpus Christi TX
Event: 
Heat Advisory
Urgency: 
Expected
Effective: 
June 18, 2026 - 6:56pm
Expires: 
June 19, 2026 - 3:00am
Description: 
* WHAT...Heat index values up to 114 expected. * WHERE...Aransas Islands, Bee, Calhoun Islands, Coastal Aransas, Coastal Calhoun, Coastal Kleberg, Coastal Nueces, Coastal Refugio, Coastal San Patricio, Duval, Goliad, Inland Calhoun, Inland Kleberg, Inland Nueces, Inland Refugio, Inland San Patricio, Jim Wells, Kleberg Islands, La Salle, Live Oak, McMullen, Nueces Islands, Victoria, and Webb Counties. * WHEN...From 11 AM to 8 PM CDT Friday. * 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. Take extra precautions when outside. Wear lightweight and loose fitting clothing. Try to limit strenuous activities to early morning or evening. Take action when you see symptoms of heat exhaustion and heat stroke. To reduce risk during outdoor work, the Occupational Safety and Health Administration recommends scheduling frequent rest breaks in shaded or air conditioned environments. Anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is an emergency! Call 9 1 1. Do not leave young children and pets in unattended vehicles. Car interiors will reach lethal temperatures in a matter of minutes.
Area Description: 
La Salle; McMullen; Live Oak; Bee; Goliad; Victoria; Webb; Duval; Jim Wells; Inland Kleberg; Inland Nueces; Inland San Patricio; Coastal Aransas; Inland Refugio; Inland Calhoun; Coastal Kleberg; Coastal Nueces; Coastal San Patricio; Aransas Islands; Coastal Refugio; Coastal Calhoun; Kleberg Islands; Nueces Islands; Calhoun Islands
Forcast Office: 
NWS Corpus Christi TX