Question

The tropical storm-force winds of a category 3 hurricane are forecast to intersect the decision arc for your community in 36 hours. for a hurricane of category 4 intensity, it is estimated that your community will need 20 hours to evacuate to safety. how much time is there before the evacuation should be started?

Answer 1

When winds extent to the point of tropical storm force, hurricane preparedness get tough and complicated. Watches are provided 48 hours before winds increase to 39 to 73 mph, and warnings are released 36 hours before, due to the tropical storm is expected.

If the warning is released 12 hours later than the watch, people should finish their preparations right away and be ready to leave the area. So to know how much time there is, yes, it's necessary to take away the hours from the moment the indicators were given, then the public will have 16 hours left accordingly.

Explanation:

Answer 2

With the category 3 hurricane and category 4 hurricane, the community will have the time given before the evacuation should be started by subtracting the the number of hours needed to evacuate from the time from the decision arc. From the given,
h = 36 hours - 20 hours

h = 16 hours

Thus, the community is given 16 hours.