Why are breezes cool




















The fronts that result from strong sea breezes during warm months can prompt daily thunderstorms along the coast, for example, in Florida's peninsula. In that area, sea breezes are blowing from both the east and the west, and their convergence can cause severe weather as the air rises and forms clouds and precipitation. These breezes are actually beneficial to Florida and the rest of the east coast of the U.

At night, the air over the water is warmer than the air over the land, since land loses heat quickly while water takes much longer to cool down. As a result, the pressures over the land and water are the reverse of what they are during the day; the pressure over the land is high, while the pressure over the water is low. The small difference in temperature between the land and the water creates a breeze that blows from the land toward the sea.

The bottom of the following image illustrates the land breeze that occurs at night. Recall that the land surface cools quicker than the water surface at night. Therefore, the warmer air over the ocean is buoyant and is rising.

Also, if the general wind pattern happens to be in the same direction as the sea breeze, then the cooling effects can penetrate well inland — the sea breeze is not always just an effect along the immediate coast. Even today along the Jersey Shore, the sea breeze was still able to penetrate a few miles inland, despite the fact that the general wind pattern was in a direction that slightly opposed it.

Forecast About Contact Donate. Sign in. Log into your account. Forgot your password? Password recovery. Recover your password. Get help. Forecast About Contact Donate More. Thursday, November 11, Home Miscellaneous The sea breeze and its cooling effect along the coast. The sea breeze circulation top and land breeze circulation bottom.

Free Online Pilot Ground School. Can you explain why? Empty both dishes and let the sand cool to room temperature. Then, fill one dish with the room-temperature sand and the other dish with room-temperature water. Feel the temperature of the sand and the water with your finger. Are the temperatures of both very different? Place both dishes next to each other again in your wind-protected area. Use the same incense stick and hold it between both dishes.

Where does the smoke go this time? Next, put the dish with the sand into the freezer for about 10 to 15 minutes. While the sand is cooling down heat water on the stove to about 70 to 80 degrees C.

Replace the room-temperature water with the hot water in the second dish. Once the sand is cooled and the water is heated, place the dishes next to each other again in your wind-protected area. Hold the incense stick between the dishes again and observe which direction the smoke is moving.

Does it move toward the sand or the water? Extra: Repeat this activity with other temperature differences between the water and the sand. How high does the temperature difference need to be to observe a sea or land breeze?

Extra: Would your observations be different at a pebble beach? Replace the sand with pebbles and repeat the activity to find out! Extra: How would your results be affected by external winds? Remove your wind shield or repeat the activity in a windy area to see how your air flow is affected. Build a Cooler. Make a Potato Shrink--with Saltwater. Get smart.



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