Ocean, Albion, Bulwark, Mounts Lyme Cardigan and Largs Bay. All ships that really should be able to help in such a situation.
Not forgetting Argus and the Point Class RoRos.
Not sure of their disposition, but now would be a great time for the RN to deploy some of them. Ahead of defence cuts, every service is looking to perform that vital must have role. Helping victims of a disaster like this with out considerable amphib and logistics capability would not only do real good for the people who need help, but do the navy good.
Short of helos? A few 771 cabs and what about HTUFT S61s. The RN uses them a lot. What better time to do some good, save lives, make a difference and prove your worth to anti-military politicians beancounters and the British electorate.