Forecasting: Uncertainty
Answer: What's Your Risk?
The tropical cyclone probability forecast assigns a probability of 14% to your location, with landfall expected in 72 hours. It takes 30 hours to evacuate your community. What should you be doing now?
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The correct answer is #3. If you chose the first answer, you are not taking into consideration the maximum probability for the 72-hour forecast period; 14% is about the highest it can be in this period. That means that, at least for now, the forecast says the hurricane is headed straight at you. The actions in answer 2 are premature at this stage, given forecast uncertainty. Answer 3 is the best choice because you're getting people who will need to react started on their preparations, but can wait to commit to further actions if future conditions and forecasts warrent. |