Fishing boats are being called in and ferry services grounded as the Philippines braces for the arrival of super typhoon Haiyan.
Fire crews are warning residents of the dangers. Thousands of villagers have fled their homes.
Set to make landfall on Friday, the category five storm is due to hit central areas, including a province recently devastated by an earthquake.
Haiyan, the most powerful typhoon to hit the Pacific this year, has gained strength as it heads for the Philippines and with gusts of up to 335 kph, it is feared it could cause major damage.
As a result, schools and some offices in the danger zones have closed. Power and communication lines are being switched off and food, water and other relief supplies stockpiled.
An average of 20 typhoons hit the Philippines every year. The strongest storm last year killed over 1,000 people.