When the yen rises relative to the dollar, it makes it more affordable for Japanese tourists to visit Hawaii. If the yen continues to rise, the economy in Hawaii should get a boost from the additional tourists, especially if the yen remains strong through the fisrt week of May, when many Japanese go on vacation.
The chart for BOH still looks weak. There might be more downside to it at this point. But as long as they've steered clear of any bad mortgage loans, and the yen remains strong, I'm betting that BOH will surprise on the upside in the second quarter and beyond, if the BOJ keeps raising interest rates.