How Much Damage Has Gabrielle Affected New Zealand Wine Producing Areas?

Cyclone Gabrielle has hit much of New Zealand with Hawkes Bay and Gisbond's wine growing areas amongst the hardest hit. Their largest wine region, Mulbrooch is in the south island and makes up 80% of wine production but it was completely sodden. This natural disaster is happening just as the southern hemisphere gears up for harvest with much of Gisb Bond's harvest due to start shortly.