Tropical Storm Ivo forecast to bring heavy rains across Mexico

Tropical Storm Ivo formed south of Mexico on August 6 and is forecast to bring heavy rainfall across parts of Mexico as it passes near the country’s coast.

As of 03:00 CST (09:00 UTC) on August 7, Ivo was located 346 km (215 miles) west-southwest of Acapulco, Mexico, moving west-northwest at 37 km/h (23 mph). Maximum sustained winds reached 64 km/h (40 mph), with higher gusts.

Estimated minimum central pressure was 1 008 hPa, with tropical storm-force winds extending outward up to 56 km (35 miles) from the center.

The system is forecast to move generally parallel to, but offshore of, the coast of Mexico from August 7 to 8, and then turn westward away from Mexico.

Ivo is expected to continue strengthening, possibly reaching hurricane strength by the end of the week. It is forecast to bring 50–100 mm (2–4 inches) of rainfall across the Mexican states of Guerrero, Michoacán de Ocampo, and Colima through August 8. Isolated totals could reach 150 mm (6 inches). These areas are likely to experience significant flash floods due to the storm.

Swells generated by Ivo will affect the southwestern coast of Mexico over the next couple of days, causing life-threatening surf and rip currents.

Meanwhile, Tropical Storm Henriette, which formed on August 4, continues to maintain strength far off the coast of Hawaii.

As of 23:00 HST on August 6 (09:00 UTC on August 7), Henriette was located 2 229 km (1 385 miles) east of Hilo, Hawaii. Maximum sustained winds reached 72 km/h (45 mph), with higher gusts. The storm had an estimated minimum central pressure of 1 004 hPa and was moving west at 26 km/h (16 mph).

Henriette is the eighth named storm of the 2025 eastern Pacific hurricane season, while Ivo is the ninth. If Ivo reaches hurricane strength, it would be the fifth hurricane of the season.

Rishav Kothari

Rishav Kothari is Editor-in-Chief of The Watchers, where he runs the newsroom and covers earthquakes, volcanoes, severe weather and space weather.

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