I don't know exactly how his algorithm selects which locations to generate these warnings for, but Yanbu is not very far north of Mecca, which had around 550 heat-related deaths yesterday during the Hajj pilgrimage: https://www.reuters.com/world/middle-east/soaring-temperatures-scorch-pilgrims-haj-saudi-arabia-2024-06-18/
CC: Éamonn (npub145g…mrpm)