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Thursday's heat index to push 120-degree mark

Thursday's heat index to push 120-degree mark
Photo: ValleyCentral · view original

HARLINGEN, Texas (ValleyCentral) — A strong subsidence pattern, where large‑scale sinking air warms as it compresses, is driving temperatures sharply upward across the Valley. This setup produces extremely hot conditions, with heat index values climbing even higher. Forecast highs for tomorrow a...

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