A sharp escalation in extreme weather has triggered simultaneous alerts from meteorological authorities across North Africa and the Middle East. Iran’s national weather service issued yellow-level warnings for thunderstorms and heavy downpours in at least 17 provinces from Tuesday (29 June), while Morocco’s directorate of meteorology raised an orange alert as temperatures were forecast to reach 45°C. Algeria’s meteorological office warned of a heatwave and torrential rain, and Israel’s meteorological service activated red and orange heat-stress advisories for the Jordan Valley, Arava, and Dead Sea region. The alerts signal a multi-day event that straddles very different climate zones, combining an oppressive heat dome over the western Maghreb with monsoonal moisture surging into the Iranian plateau.

The synoptic pattern driving the hazards is an amplified subtropical ridge that has centred intense mid-level high pressure over the Sahara, pushing temperatures in inland Morocco and Algeria 6–8°C above seasonal norms. On its eastern flank, a persistent pressure gradient is generating strong, dust-laden winds across Iran’s southern deserts and the Persian Gulf coast. At the same time, diurnal convective activity, enhanced by orographic uplift along the Alborz and Zagros ranges, is triggering clusters of thunderstorms that will drift into northern, northwestern, and central Iran through Friday. The convergence of these dynamics means that within a single 3,000-kilometer corridor, populations will face compound risks from heat stress, dust storms, flash floods, and lightning.

Iranian authorities are bracing for the most complex impacts. Irrigation and transport infrastructure in Gilan, Mazandaran, and Ardebil provinces are vulnerable to sudden river rises and landslides; farmers across East and West Azerbaijan have been advised to halt pesticide spraying and protect temporary structures. In the southern provinces of Khuzestan and Sistan-Baluchestan, property damage from collapsing scaffolding and billboards is considered likely, while reduced visibility from blowing dust threatens key desert highways. Simultaneously, maritime operations in the Persian Gulf, Strait of Hormuz, and Gulf of Oman face waves up to 1.5 metres and wind gusts that could disrupt small-vessel traffic and offshore oil platforms. Moroccan and Algerian forecasts focus more on acute public-health risks: heat-stroke exposure for outdoor workers and vulnerable groups, as well as localised flash flooding from hailstorms in the High Atlas foothills. Israel’s layered heat warnings—red for the Jordan Valley, orange for the northern Arava and Dead Sea, yellow for the eastern Negev—underscore how rapid temperature rises strain even well-prepared health systems.

Emergency-management agencies in all four countries have called for precautionary measures: clearing waterways, securing construction sites, restricting outdoor recreation, and ensuring hospital surge capacity for heat-related admissions. The critical near-term indicator to watch is whether the convective line over northern Iran persists into a second pulse later this week, which could transform already saturated catchments into flood zones. In North Africa, monitoring will shift to the longevity of the heat spike, with forecast models hinting at only a marginal easing after Wednesday. For Israel, the return of Mediterranean humidity after the heat episode would mark a relief point.