Severe weather warnings were issued on Thursday across Iran, Mexico and Indonesia, as forecasters tracked converging storm systems expected to bring intense rainfall, hail and damaging winds to millions of people. In Mexico City, the civil protection agency activated a yellow alert for eleven boroughs, predicting 15 to 29 millimetres of rain and possible hailstorms between the afternoon and night of 25 June. Simultaneously, a separate yellow alert for six central boroughs warned of wind gusts reaching 59 kilometres per hour. Iran’s state meteorological service reported that thunderstorms and sudden downpours would strike northwestern provinces and the Caspian coast over the next two days, while Indonesia’s meteorology, climatology and geophysics agency (BMKG) cautioned that a cyclonic circulation north of Papua would intensify rainfall across the archipelago.

Mexico’s national weather service (SMN) detailed a broader threat, forecasting very heavy rain in Guerrero and Oaxaca, strong showers across thirty states, and a heat wave persisting in the northwest with temperatures above 45 degrees Celsius. The agency attributed the conditions to a combination of low-pressure channels, tropical waves and a high-altitude trough. In Iran, the unstable weather was expected to spread from the northwest to the Alborz highlands and the northeast, with dust storms and reduced air quality forecast for central and eastern regions, and rough seas predicted for the Caspian and the Persian Gulf. BMKG identified convergence zones stretching from Aceh to Papua, warning of heavy to very heavy rain in Maluku and thunderstorms in Tanjung Selor, while light to moderate rain was forecast for cities including Makassar, Ambon and Jayapura.

While the forecasts are based on evolving atmospheric models, the actual intensity and local impact remain uncertain. In Mexico City, authorities urged residents to avoid flooded roads, secure loose objects and stay clear of trees and power lines, as the alerts coincided with large public gatherings for the World Cup. Iranian officials have not yet reported disruptions, but the combination of mountain storms and rough seas could affect transport and agriculture. In Indonesia, BMKG noted that the cyclonic circulation’s trajectory would determine the severity of downpours in eastern regions, with fog and smoke already reducing visibility in Mataram.

Emergency services across the three countries remain on standby, and no significant damage or casualties had been reported by Thursday evening. The simultaneous alerts, while typical for the season in each region, highlight the strain that overlapping extreme weather events place on urban infrastructure and disaster response systems. Meteorological agencies continue to monitor the developments and are expected to update warnings as the systems evolve.