Super Typhoon Mawar is estimated to make landfall by midday today.

“The worst is yet to come,” said Landon Aydlett, Meteorologist with the Guam National Weather Service. “Stay off the road. It’s going to be a long destructive day.”

Mawar is moving west-northwest toward Guam at 4 mph with maximum sustained winds at 155 mph.

As of 2:52 a.m., the storm was located 100 miles southeast of Guam.

The Category 4 typhoon is intensifying and could potentially become a Category 5 on approach.

Aydlett said conditions outside will ‘rapidly deteriorate’ at sunrise.

“Once the eye comes closer to Guam, those peak winds will rapidly intensify across the island,” he said. “This will go down in history as maybe one of our first or second strongest up against Typhoon Karen in the 1960s.”

Multiple power outages and transformer explosions have been reported since Tuesday, which Aydlett said is likely linked to the storm.

“This is just the beginning. It will get significantly worse as we get toward mid- to late-morning, Wednesday,” he said. “The root structures of trees are getting weaker and more vulnerable to falling over and they can fall on power lines with a lot of ease so as the rains continue, the winds increase, there is going to be more debris falling on the lines with those power outages dramatically increasing as we go through the morning.”