What is a ‘roll cloud’? Experts explain the bizarre weather phenomenon behind tsunami-like wall of cloud over Portugalpynoon NewsJuly 1, 20250 [ad_1] By SHIVALI BEST FOR MAILONLINE Published: 14:13 BST, 1 July 2025 | Updated: 14:17 BST, 1 July 2025 Beachgoers…