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Tamaulipas‑Puerto Rico heat wave intensifies

Updated 2 times since CLSTR started tracking revisions of this situation.

What changed

2026-07-28 14:59 UTC → 2026-07-30 14:50 UTC · added removed

Tamaulipas‑El Paso Tamaulipas‑Puerto Rico heat wave spreads to Puerto Rico intensifies

The early‑July forecast for a heat wave across the Mexican state of Tamaulipas and the U.S. city of El Paso materialised by late July, materialised, with temperatures hitting climbing to 40 °C (105 °F) and heat advisories issued on both sides of the border. Residents were urged to stay hydrated, limit outdoor activity, stay hydrated activity and protect against extreme ultraviolet UV exposure. On By July 27 the heat episode persisted. A tropical wave traversing the Caribbean kept Puerto Rico remained under a heat advisory, with temperatures reaching advisory as a high of about tropical wave brought scattered showers, temperatures near 91 °F and a heat index of about 106 °F, scattered showers, moderate wind gusts and hazardous marine currents along exposed beaches. Simultaneously, northern Mexico continued to experience elevated temperatures; municipalities in Mexico’s Tamaulipas such as municipalities—including Matamoros, Reynosa, Nuevo Laredo, Tampico, El Mante and Ciudad Victoria were Victoria—were forecast to see maximums between 35 highs of 35‑39 °C and 39 °C, accompanied by with wind gusts of 40‑60 km/h. Health officials in both regions reiterated warnings about heat‑related risks, especially km/h, while a dry Saharan‑dust plume suppressed further rain for vulnerable groups, the week. By July 30 the heat intensified further; forecasts called for daytime highs of 40‑45 °C and heat‑index values above 50 °C in cities such as Ciudad Victoria, Reynosa and Matamoros. The state health directorate urged residents to hydrate, stay in shade and avoid strenuous outdoor work. Isolated showers of 5‑25 mm and occasional thunderstorms may bring brief relief, but wind gusts of 40‑60 km/h persist and the dry air mass carrying Saharan dust layer is expected to suppress further rainfall keep precipitation minimal for the week. next two‑to‑three weeks across northern and central Mexico.

Versions

  1. 2026-07-30 14:50 UTC Tamaulipas‑Puerto Rico heat wave intensifies
  2. 2026-07-28 14:59 UTC Tamaulipas‑El Paso heat wave spreads to Puerto Rico
  3. 2026-07-26 13:59 UTC Tamaulipas‑El Paso heat wave

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