Storm 08
Storm 08 : "(1) An atmospheric disturbance involving perturbations of the prevailing pressure and wind fields, on scales ranging from tornadoes (1 km across) to extratropical cyclones (2000-3000 km across). (2) Wind with a speed between 48 and 55 knots (Beaufort scale wind force 10)". (UNDHA, DM Glossary, 1992, 71)