At 1:30 a.m. Thursday, the National Weather Service issued an update continuing Comal County’s heat advisory until 7 p.m., with temperatures up to 104 and heat-index values up to 110 expected.
People working, traveling or spending time outdoors in Comal County face an elevated risk of heat illness through Thursday evening. The weather service says hot temperatures and high humidity may cause heat illnesses, making the alert’s remaining hours especially consequential for anyone whose Thursday plans keep them outside.
By 1:30 a.m. Thursday, an active, actual alert covered Comal and seven neighboring counties. The federal alert record classifies the event as moderate in severity, expected in urgency and likely in certainty. Those labels describe the agency’s current alert assessment; they do not change its listed end time.
The advisory area includes Comal, Hays, Bexar, Guadalupe, Atascosa, Wilson, Karnes and DeWitt counties. The alert provides expected maximums for that eight-county area rather than a reported observation from one Comal County weather station, so conditions at a particular location may differ during the day.
Thursday’s record is explicitly labeled as an update and says the advisory remains in effect. That procedural status matters: the weather service continued an active warning window instead of documenting that the heat had ended. Readers can use Comal.News’ earlier extreme-heat coverage to follow the alert’s running story thread.
For residents deciding when to work, exercise, travel or attend outdoor activities, the useful dividing line in the official record is Thursday evening. Until then, the alert continues to identify heat illness as the principal impact from the combination of high temperatures and humidity.
The alert’s CAP record sets both its expiration and event-ending time at 7 p.m. Thursday. That is the next firm checkpoint in the official timeline, and it supplies a clear time for checking whether Comal County remains under an active heat alert afterward.
The consequential question after that checkpoint is whether the advisory disappears from the active feed or another National Weather Service alert replaces it. A post-expiration update—not the current forecast—will establish the county’s alert status for Thursday night and the next forecast period.