APPENDIX F: DATA SUMMARY FOR THE STORM OF 12 NOVEMBER 1968 



4. The 12 November 1968 storm was recorded through its effects on the 

 three New Jersey localities of Long Beach Island, Atlantic City, and Ludlam 

 Beach. The low pressure cell was well developed and migrated up the eastern 

 coast during 12 to 13 November 1968 as shown on the synoptic weather maps. 

 This event was highly significant with a peak water level of 1.6m and an 

 associated surge of 1.2 m at Atlantic City. Maximum hindcast wave heights 

 ranged from 2.4 to 2.9 m and coincided with the peak high tide at all sites. 

 However, beach changes cannot be attributed to a single storm system. As can 

 be seen in the hindcast plots, a storm also occurred on 7 November 1968. The 

 hindcast wave heights for this storm were higher than for 12 November 1968 

 but the tide records indicate a much lower peak water level (only 0.8 m at 

 Sandy Hook). Poststorm surveys were conducted 2 to 3 days after the main 

 event, but the changes probably resulted from the sequence of storms. Only a 

 few of the profile lines show evidence of possible recovery. 



5. Erosion was significant at all localities, ranging from -19.7 m^/m 

 at Atlantic City to -26.4 m^/m at Long Beach Island. Long Beach Island also 

 had the greatest variability along the beach with a hinge range of 27 m^/m. 

 Significant erosion at these sites occurred high on the beach between the 0- 

 to 2.5-m contour intervals. All shorelines receded, from a median of -1.4 m 

 at Long Beach Island to -6.1 m at Ludlam Beach. Slope changes at msl were 

 minimal at all localities, but the profile cross sections indicate a leveling 

 trend of the upper berra as the sediments moved offshore. This storm is of 

 particular interest in comparing beach changes after a large storm. 



6. Tables and figures are arranged according to predicted and actual 

 water levels, hindcasted wave data, profile comparisons, shoreline and slope 

 changes, unit volume changes, and distribution of unit volume changes. 



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