Cold Weather Convection: Does Warm Water Rise or Fall?

AI Thread Summary
Warm water behaves differently in cold weather depending on its temperature relative to 4°C. Above this temperature, warm water becomes denser as it cools, causing it to rise. Conversely, below 4°C, water becomes less dense as it cools, leading warm water to fall. The discussion highlights the importance of understanding the context of the question, particularly regarding outdoor water bodies like lakes. Overall, the interaction between temperature and water density is crucial in understanding convection in cold weather.
caprija
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Does warm water rise or fall in cold weather?

I think it falls

Does it have to do with convection??
 
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The question makes no sense. "Weather" implies the atmosphere and water is a liquid, so water falls in the atmosphere regardless of if it is warm or cold. Can you provide some context to the question?
 
caprija said:
Does warm water rise or fall in cold weather?

I think it falls

Does it have to do with convection??

Above 4°C, water gets denser as it cools. This means that warmer water rises under these conditions. Below 4°C, water becomes actually becomes less dense as it cools. Under those conditions warm water will fall as you guessed.
 
LeonhardEuler said:
Above 4°C, water gets denser as it cools. This means that warmer water rises under these conditions. Below 4°C, water becomes actually becomes less dense as it cools. Under those conditions warm water will fall as you guessed.
Are you reading "weather" as 'water'?
 
Gokul43201 said:
Are you reading "weather" as 'water'?

The situation I assumed he was talking about was you have some water outdoors like a lake or something, and the water is at a temperature close to the air, but it isn't completely uniform. It's the only way it makes sense. I know they sometimes give ocean temperatures in weather reports, so maybe the question is actually legitimate.
 
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