Flash floods struck Erbil, the capital of Iraq's Kurdistan Region, on Saturday after thunderstorms dumped an estimated 80mm of rain on the city — nearly three times the 30mm forecast. Two people were killed. Streets were inundated and homes and businesses sustained extensive damage as the volume overwhelmed drainage infrastructure built for lighter loads. The storm system responsible extended across the broader region, with neighbouring Iran also hit by severe thunderstorms. Erbil's vulnerability is structural: rapid urbanisation has paved over natural drainage channels, and forecasting capacity in the region consistently underestimates convective storm intensity. A factor-of-2.7 miss between forecast and actual rainfall is not a rounding error — it is a systemic gap. In Europe, Storm Bruna is bearing down on Portugal's west coast with gusts expected to reach 80 km/h and cumulative rainfall potentially hitting 200mm by week's end. The storm has already raked the Canary Islands, where Tenerife recorded an 80mph gust Saturday night. Portugal's Atlantic-facing infrastructure will be tested again by a pattern of intensifying Atlantic storms that has become increasingly routine. Japan, meanwhile, faces a sharp cold snap. Sapporo is forecast to plunge 10°C below seasonal average, with highs near 0°C on Tuesday and lows reaching -8°C in western Hokkaido. Ski resorts around Kiroro and Niseko expect 30-50cm of fresh snow, accompanied by 75mph wind gusts — a boon for winter tourism but a hazard for transport and power grids. The thread connecting these disparate events runs through the equatorial Pacific. The strong El Niño that peaked in late October, with sea surface temperatures 3.5°C above the climatological average, continues to distort global weather patterns. Peru is experiencing air temperatures 5-10°C above seasonal norms, conditions expected to persist into next week. El Niño does not cause individual storms, but it loads the atmospheric dice — making extreme precipitation, temperature swings, and pattern disruptions more frequent and more intense. The cost distribution is the story. Erbil's dead and damaged homes sit in a city with limited fiscal capacity to rebuild. Portugal faces another round of infrastructure stress. Japan's cold snap is manageable for a wealthy, well-prepared nation. Peru's heat threatens agriculture and water supply in communities with fewer buffers. The same climate signal produces radically different human outcomes depending on existing resilience. No single weather event is a policy argument, but the pattern is unmistakable: forecast models are underperforming against actual extremes, infrastructure designed for historical norms is failing under new loads, and the populations least responsible for atmospheric carbon concentrations bear the sharpest costs. The 80mm-vs-30mm gap in Erbil is a number worth remembering.
