Heat in Coastal Willacy, Texas

Heat September 5, 2023 · Coastal Willacy, Texas

What the National Weather Service wrote

The Cameron County Airport ASOS reported a heat index of 111 by 12:53 PM CDT, with 111 or higher values persisting until approximately 3:53 PM CDT on September 5th. By proxy, and interpolating among observations across the Texas Coastal Plains, it can be inferred that Coastal Willacy had similar conditions.

The wider storm

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 1142705. Narratives are written by the National Weather Service forecast office that issued the report.

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