Why are weather forecasts for tomorrow usually more accurate than forecasts for next week?
AForecasters work harder on tomorrow's forecast
BThe weather next week has not been decided yet by nature
CWeather conditions right now strongly influence tomorrow, but many small changes can add up over a week and push the weather in unexpected directions
DSatellites can only see one day ahead
Today's weather conditions -- current temperature, wind, clouds, and pressure -- strongly determine what will happen tomorrow. But over several days, small differences in the atmosphere can grow into large changes. The further into the future you try to predict, the more these small uncertainties add up, making the forecast less reliable.
Question 2 True / False
Weather forecasters just guess what the weather will be.
TTrue
FFalse
Answer: False
Modern weather forecasting is based on science. Forecasters use thermometers, barometers, weather balloons, radar, and satellites to collect data. Powerful computers process millions of measurements to simulate how the atmosphere will behave. It is not perfect, but it is far more accurate than guessing.
Question 3 Short Answer
If you see dark clouds building up in the west and the wind is blowing from the west, what might you predict about the weather in the next few hours?
Think about your answer, then reveal below.
Model answer: You might predict that rain or a storm is coming your way soon. In many places, weather systems move from west to east, so dark clouds in the west being pushed by a westerly wind are likely heading toward you. This is a simple observation-based forecast.
This kind of prediction uses the same basic logic that weather forecasters use: observe current conditions, apply known patterns (weather often moves west to east), and predict what will happen next. Even without satellites or computers, careful observation can give useful forecasts.