Heat — Coastal Kenedy, Texas

2023-09-06 · Coastal Kenedy, Texas

Event narrative

The Cameron County Airport ASOS reported a heat index of 111 by 12:53 PM CDT, with 111 or higher values persisting until approximately 4:53 PM CDT on September 6th. At Kingsville Naval Air Station (Kleberg), typically high heat index values near 117 degrees occurred from just before 3 pm until just before 5 PM CDT. By proxy with these location, and accounting for likely lower values still at or just above 111 degrees, it can be inferred that Coastal Kenedy County had similar conditions between 230 and 530 PM CDT.

Wider weather episode

The record breaking summer of 2023 just won't give up as high heat and humidity continued to impact the Rio Grande Valley and Deep South Texas in early September. Southerly flow enhanced by a weak upper trough embedded in the larger La Canicula ridge pushed high humidity into the region, surging heat index to or above 111 degrees for several hours each afternoon from the end of Labor Day through the middle of that week.

Source: NOAA Storm Events Database, event_id 1142711. Narrative written by the NWS forecast office that issued the report.