Excessive Heat — Brooks, Texas

2024-05-28 · Brooks, Texas

Event narrative

Falfurrias (AWOS) recorded max heat indices between 111-119F from 12:55-5:55 PM CDT on May 28, 2024. Excessive heat warning values fell between 116-119F occurred between 2:55-4:55 PM CDT. Note that these values may be up to two degrees two high based on proxy observations and a high bias at the location (temperature and especially dewpoint) since mid May. A better estimate was from around 330 until 530 PM.

Wider weather episode

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.

Source: NOAA Storm Events Database, event_id 1184120. Narrative written by the NWS forecast office that issued the report.