Openers Peter Drysdale and Tom MacRury were back in the hut for two and three respectively, before Joe Carter and Jono Boult joined them for 10 and a duck.
Brett Hampton was the sole batsman to show real intent in thrashing seven boundaries in his 36, but when he was removed the score was 85/5 and the Bay were in serious trouble.
Things only got worse from there as Ben Williams was the only other player to reach double figures.
The last six wickets fell for 38 runs, with the Bay bowled out cheaply and in quick time for 123 off just 43.3 overs.
Kurtley Watson reaped the most rewards for the home side, finishing with 4/24 from his nine overs.
Following on, the Bay were soon in trouble. MacRury lasted two deliveries for his one, before Drysdale and Carter set about stopping Northland from grabbing an outright win.
Drysdale was on 30 with Carter at the other end on 37 when the game was called off with the Bay at 77/1.