Eerie sirens blast across Hawaii as it prepares for possible nuclear attack from North Korea

HONOLULU, Hawaii - Loud warning sirens have invaded the peaceful beaches of Hawaii after yet another missile launch by North Korea on Tuesday.

Hawaiian officials are calling it "the new normal," saying, though a nuclear attack is slim, they must be prepared for the worst.

The last time sirens were heard on the island was during the Cold War.

Now those sirens are back to warn residents and tourists to take cover should an attack occur.

"Get inside, stay inside, stay tuned. It sounds simple, but when you have that short of time, about 12 minutes after we get notification, 12 to 13 minutes, that is about all you can do," said Vern Miyagi, Director of Hawaii Emergency Management.

Officials say residents should buy enough non-perishable items to last for at least two weeks.

If an alert was issued from the U.S. Pacific Command to take cover, the damage and radiation contamination would determine how long residents would stay inside their homes, which could range from two to 14 days.

"The guidance to the schools right now is 48 hours -  48 hours in place depending on where their location is with respect to the impact area. The 48 hours is based on the decay of radioactivity after the event," Miyagi said at a news conference.

Beginning December 1st, the sirens will be tested monthly on the first working day of each month at 11:45 a.m. - any other time could mean an actual attack was in progress.

They sound like a tornado siren, with a wavering tone, unlike Hawaii's tsunami sirens, with a steady tone, which will also be tested monthly immediately following the nuclear attack sirens.

Officials want to remind everyone that that even though a nuclear event is unlikely, you can never be too prepared.

"We believe it is imperative that we be prepared for every disaster in today's world and that includes a nuclear attack," Hawaii Governor David Ige said.