Heatwave Expected Friday, but when will Temperatures Drop in South Texas?

Heatwave Expected Friday, but when will Temperatures Drop in South Texas?

The residents of South Texas have been advised to brace for an intense heatwave set to take place on Friday. The high atmospheric pressure developing overhead is expected to bring bright sunshine and above-average temperatures across the region, with the thermometer possibly hitting the upper 90s, their highest levels in nearly three weeks. Certain areas in South Texas might even experience temperatures touching 100 degrees.

Friday’s Forecast

Though the morning temperatures will be comfortable, falling to the low to mid-70s across South Texas, the temperatures are expected to rise quickly. By 10:30 a.m., it is foreseen that the temperature will reach 85 degrees and exceed 90 degrees by noon.

The intensity of the heat will further increase in the afternoon, peaking at 98 degrees in the San Antonio metro area, with areas south and west of the city, including Pearsall, Carrizo Springs, Laredo, and Del Rio, potentially reaching 100 degrees.

As if the soaring temperatures weren’t enough, residents are warned to prepare for an increase in humidity due to southerly winds that will carry atmospheric moisture from the Gulf of Mexico into South Texas. This will cause the dew points to be higher than what they have been in the past few days. The humidity-driven heat index values could reach a staggering 105 degrees in San Antonio, which is much higher than normal for mid-September.

Weekend Forecast

Respite from the intense heat seems likely with slight temperature drops over the weekend due to increasing cloudiness and tropical moisture influx from the eastern Pacific Ocean. Tropical Storm Ileana, currently developing near Baja California, is predicted to push moisture into South Texas this weekend.

On Saturday, the influx of moisture may result in the presence of partly cloudy skies across South Texas. While these might give residents a temporary reprieve from the scorching heat by dropping the temperatures by a degree or so, the daily peak temperature will remain unseasonably high at around 97 degrees in San Antonio.

The cooling trend might continue into Sunday, when San Antonio is expected to encounter partly cloudy skies and a small chance of scattered showers and thunderstorms.

What’s Next?

Early next week, temperatures are expected to linger in the mid-90s with a slight chance of showers and storms. There is a potential of a cold front being driven through Texas by Sept. 21-22, as indicated by long-range forecast models. However, that remains too far into the future, and hence, the forecast confidence is currently low. So, for now, South Texans will just have to put up with the heat and stay updated on future predictions.

Keep in mind to protect yourself and your loved ones from the heat. Stay hydrated, avoid direct sun exposure during peak hours, and never leave children or pets unattended in hot cars. Even a few minutes in a heated car can be deadly.

Be sure to follow daily updates and stay safe in the heat.