The site I manage is load balanced across both AZs ap-southeast-2a and ap-southeast-2b which did not save it. At the moment ec2 statuses are not being updated which is preventing ELBs from registering instances as healthy.

Both AZs are directly under the deluge and I don't believe only one AZ is affected for a second.

The size of the storm can be seen here http://www.bom.gov.au/products/IDR713.loop.shtml#skip