HEAT ADVISORY
HEAT ADVISORY ISSUED JULY 21 AT 12:50PM CDT UNTIL JULY 21 AT 8:00PM CDT
Effective: 2026-07-21 12:50:00
Expires: 2026-07-21 20:00:00
Issued by: NWS Houston/Galveston TX
Alert Text
* WHAT...FOR THE HEAT ADVISORY, HEAT INDEX VALUES UP TO 109. FOR THEEXTREME HEAT WARNING, DANGEROUSLY HOT CONDITIONS WITH HIGH TEMPERATURES BETWEEN 100 TO 104 AND HEAT INDEX VALUES UP TO 115 EXPECTED.
* WHERE...PORTIONS OF SOUTH CENTRAL AND SOUTHEAST TEXAS.
* WHEN...FOR THE HEAT ADVISORY, UNTIL 8 PM CDT THIS EVENING. FOR THE EXTREME HEAT WARNING, FROM 11 AM TO 8 PM CDT WEDNESDAY.
* IMPACTS...HEAT RELATED ILLNESSES INCREASE SIGNIFICANTLY DURING EXTREME HEAT AND HIGH HUMIDITY EVENTS. HOT TEMPERATURES AND HIGH HUMIDITY MAY CAUSE HEAT ILLNESSES.
More Information
Target Area
HOUSTON, TRINITY, MADISON, WALKER, SAN JACINTO, POLK, BURLESON, BRAZOS, WASHINGTON, GRIMES, MONTGOMERY, NORTHERN LIBERTY, COLORADO, AUSTIN, WALLER, INLAND HARRIS, CHAMBERS, WHARTON, FORT BEND, INLAND JACKSON, INLAND MATAGORDA, INLAND BRAZORIA, INLAND GALVESTON, SOUTHERN LIBERTY, COASTAL HARRIS, COASTAL JACKSON, COASTAL MATAGORDA, COASTAL BRAZORIA, COASTAL GALVESTON, MATAGORDA ISLANDS, BRAZORIA ISLANDS, GALVESTON ISLAND, BOLIVAR PENINSULA
