Tasmania has recorded 12 new COVID-19 cases, which takes the total number of active cases to 26.
All of them are either being managed at home or in a community case management facility.
The daily rise is shy of Tasmania's record of 15 cases in one day, set in April last year.
A snap meeting between Commonwealth, state and territory leaders was called for 12pm AEDT to discuss new modelling predicting how quickly Omicron cases could climb.
Tasmania, along with some states and territories, has already brought in an indoor mask mandate, but New South Wales, which posted its largest-ever rise in daily COVID figures today, is a notable exception.
Tasmanian 'frustration' over NSW, WA standpoints
Speaking after the National Cabinet meeting, Tasmanian Premier Peter Gutwein said he had been unaware West Australia had reinstated its hard border with travellers from Tasmania.
"We weren't advised about that … that's not unexpected in terms of the steps the WA premier has taken with other states.
On the lack of a mandate on masks in NSW, Mr Gutwein said he had urged Premier Dominic Perrottet to reconsider in light of that state's growing caseload.
"We know with the growing case count over there, that one way that they can limit the spread is ensure they put those social measures back in place and I would encourage New South Wales very firmly to do that.
"I would note that New South Wales seems to be the one outlier in all of this. And I have encouraged the premier to consider what he might do in that space. I'd like to see some real intent.
Asked if he understood Tasmanians being disgruntled by having to wear masks while those in NSW did not, Mr Gutwein acknowledged he was "a little frustrated by it".
"I urge New South Wales to look at the measures that they have in place."
Tourism council urges 'no turning back'
Yesterday, Mr Gutwein said the state's border would remain open, after calls from the Tasmanian Greens to shut it.
The Tourism Industry Council of Tasmania today backed the reopening of the state's borders, with chief executive Luke Martin saying borders must stay open.
"There can be no turning back on Tasmania's strategy to re-join the world and keep our borders open," he said.
"Obviously everyone is nervous about COVID entering our community and the evolving situation with Omicron but snapping our borders back shut is not a sensible response.
"We still have among the most stringent border controls anywhere in the world to manage risk as effectively as possible."
Mr Martin said the impact on the economy if borders were closed again would be "profound".
"We estimate around $100 million of visitor spending has already been brought into the state over the past week," he said.
"This is a stark reminder of how important the visitor economy is to the state."
Normally busy pub serves one meal
But the reopening has not been all good news for those working in hospitality.
A publican at a north-east Tasmanian pub said his business has been hit hard by increasing COVID cases and the mask mandate.
Darren Probert, the licensee of Kendall's Hotel at Scottsdale, said on Tuesday night the pub only served one meal.
"I'm assuming that's what affected it because every other night we'd done a lot of meals up until Tuesday night."
He said he had to pay three staff that night to make the single meal.
"Generally, as a rule, this time of year is our busiest time," he said.
Mr Probert said he felt the increase in COVID exposure sites had also led to a downturn in business.
"People are just concerned after seeing how many sites popped up all over the places," he said.
"Now they're concerned they may walk into the wrong place and stuck in quarantine during Christmas."
