However, it is premature to call a break here, given the daily close needs to be above 1.4830. Even if we do have a day end closing above 1.4830, it is slightly risky to expect a fresh rally, given the conditions under which the break happened.
Note the market is pricing-in a 'remain' vote victory by having a look at the polls. This means there is a scope for "buy the rumor, Sell the fact" kind of trade. Hence, the day end closing could be below 1.4830 or the breakout could turn out to be a 'fakeout' tomorrow/next week.