1. Review of storm season October 2013 to February 2014 Jonathon Clarke & Travis Mason

2. Storm season October 2013 to February 2014

3. 31 post-storm surveys conducted over winter 2013/14

4. Hurst Spit, 1989 © NFDC Hurst Spit, 2014 © NFDC

5. Tor Bay Waverider, on Chesil Beach © Fugro EMU

6. 1 in 50 years 1 in 30 years 1 in 20 years 1 in 10 years 1 in 5 years

7. Storm frequency (no. storms > 1 in 1 year)

9. Seaford

10. Goodwin Sands

12. Rustington

13. Hayling Island

14.  Erosion rates greater than 25 times the annual average observed at numerous sites  Large scale erosion found at all the sites analysed, except one. Average beach volume losses of 25,000 m 3 per km of coastline length were typical*  More than 470,000 m 3 losses in total observed across just 25 km of frontage *At beaches where there was enough material to permit this level of erosion

16. Seaford

18. Net volume change from summer 2013 to winter 2013/14 (m 3 ) Net volume change from winter 2013/14 to summer 2014 (m 3 ) Beach recovery (% of beach volume recovered by summer 2014 Comments Ex 1-500+700140% Gained more than was lost over the winter Ex 2-500+500100% Recovered all winter losses Ex 3-500+25050% Recovered half of winter losses Ex 4-50000%No recovery Ex 5-500-250-50% Lost half as much again Calculation of beach recovery

19. Site Net change from summer 2013 to winter 2013/14 (m 3 ) Net change from winter 2013/14 to summer 2014 (m 3 ) Beach recovery (% of beach volume recovered by summer 2014) Comments Seaford-15,534+9,40261% Engineering works (recycling) Elmer-14,549+4,46831% Natural recovery Pagham17,812 Engineering works (recycling); no survey before Sep due to nesting birds B’mouth-143,733+80,85256% Natural recovery Sandbanks-30,259+7,16819% Notable sand dune erosion along narrow beach section and at Shore Road Swanage-638+12,819> 200% Considerable overall accretion particularly in northern part of groyned beach (Profiles 5f00744 to 5f00759), but some patchy depletion in central and southern section of the bay Ringstead-2,130+83539% Some profiles still well below design profile Preston Beach -8,522+10,591124% Extensive engineering works Weymouth-6,257+4,10266% Natural recovery?

20. 1949 (1 in 50) 1953 (1 in 130) 1978 (1 in 20) 1996 (1 in 10) December 2013 (1 in 20) Largest Surge event in over 60 years 1953 1949

22. Return Periods SWL (m OD) Return period (1:x years) 2014203420642114 13.363.443.573.83 53.683.763.894.15 103.833.914.044.30 203.964.044.174.43 504.144.224.354.61 1004.284.364.494.75 2004.414.494.624.88 5004.594.674.805.06 10004.714.794.925.18 Source: “Coastal Flood Boundary Conditions for UK" (EA/JBA 2011)

23. Flood warnings (6 th December 2013)

24. Recorded Sea Level (Herne Bay)

25. Impacts 500 properties evacuated in areas of Kent, including in Sandwich, Seasalter, Faversham and the Medway towns 500 properties evacuated in areas of Kent, including in Sandwich, Seasalter, Faversham and the Medway towns 40 properties flooded 40 properties flooded A number of roads and train lines closed due to flooding A number of roads and train lines closed due to flooding Newhaven swing bridge damaged, and Shoreham airport flooded Newhaven swing bridge damaged, and Shoreham airport flooded

26. North Kent

27. Sandwich Sandwich

28. Shoreham Airport

29. Deal Pier Herne Bay