Heat in Inland Kenedy County, Texas

The Texas Mesonet site at Sarita reported peak heat index values between 111F and 114F between 1 PM and 430 PM on May 28th. Proxy values from the Texas AgriScience center near the eastern Hidalgo/northwest Willacy line just southwest of the Kenedy line) indicated heat index values between 111 and 117F from 1255 and 540 PM, but 117 was only touched for an estimated 25 minutes between 345 and 410 PM.

A slightly stronger sub-tropical ridge/heat dome centered over central and southern Mexico returned northward towards the Rio Grande Valley and Deep South Texas. At five thousand feet above ground, the temperature soared anywhere from 78 to 90 degrees Fahrenheit, which translated into another short-lived but intense heat wave over the region with surface temperatures rising into the upper 90s to mid 100s from May 26-30. The combination of heat and dewpoint temperatures well into the 70s to around 80, heat indices ranged between a sweltering 111F-126F across parts of Deep South Texas and the Rio Grande Valley. The hottest temperatures were once again located from the mid-lower Rio Grande Valley northward along I-69E and I-69C; several hours with values of 116 or higher - considered Excessive Heat - were noted each day in many parts of the region.