Things were fairly bad all along the Moray Firth in 1829 with Nairnshire being hit twice. The first time on the 3rd/4th of August and then again it seems ,according to these extracts from the Inverness Journal, on the 27th. The pictures will enlarge a little if you are having trouble reading them. The first details the first flood and the other two the one that swept the town bridge away.
It's raining again tonight and no doubt that will cause a moment or two's anxiety for a few folk in town just as Nairnites in 1829 must have looked to the skies with some trepediation imediately after events 180 years ago.
Thanks to Gail and Edwina at Inverness reference Library for sourcing this material.