Figure 8. 0000-hr UTC, 27 October 1991, surface analysis 



brought it closer to the United States east coast. The system continued to fill 

 and move westward during the next 12 hr, by 1200 hr UTC 31 October, the 

 minimum central pressure had risen to 992 mb (Figure 16). The upper level 

 and surface lows were now co-located, and the system was beginning to 

 weaken with the minimum central pressure rising to 998 mb. Although wave 

 conditions were beginning to moderate, the storm was still generating strong 

 northeast winds along the affected U.S. coastline. As the system drifted west- 

 ward, it moved over warm Gulf Stream waters and began to re-intensify with 

 the minimum central pressure dropping to 994 mb. By 2 November the storm 

 had moved northward toward Nova Scotia, leaving the influence of the Gulf 

 Stream, and begun to dissipate. 



Chapter 3 Halloween Storm 



13 



