11. In advance, or to the east, of the MJO enhanced activity, winds aloft are westerly. 12. Weak winds aloft will result in some slow-moving thunderstorms with torrential rain and localized flooding. 13. Around that time, northerly winds aloft caused Betty to weaken to a Category 1 hurricane. 14. The winds aloft unfettered by friction blew faster, supplying the moisture vital to nocturnal storms. 15. Strong winds aloft can tear the storms apart. 16. Fronts are guided by winds aloft , but they normally move at lesser speeds than those winds. 17. Strong winds aloft , shearing Ignacio from the southwest, might have contributed to the weakening as well. 18. In its wake, or to the west of the enhanced rainfall area, winds aloft are easterly. 19. Sometimes, momentum from powerful winds aloft is transported to the ground by downdrafts in severe thunderstorms. 20. Flooding rains are possible with some of the storms as steering winds aloft are quite weak.
