The only sort of comparable place that I can find turbulence charts for is Vagar in the Faeroe Islands
http://www.slv.dk/Dokumenter/dsweb/G..._2_EKVG_en.pdf
For the briefing and
http://www.slv.dk/Dokumenter/dsweb/G...KVG_VAC_en.pdf
For the topographical chart.
Although in my experence when its says nil on that chart its bumpy, and light is pull in extra inch each side of your belt and shovel the sick bags off after you have landed. I was never brave enough to risk going in when it was defined as moderate.