How warm are the seas today? Global sea surface temperature

>    Sea Surface Temperature Anomaly

Hydro Picture of the Day "Earth Picture of the Day"

How fast are the winds? The speed and direction of winds over the Earth's oceans

>    Ocean Surface Wind Direction

>    Ocean Surface Wind Speed

How much water is in the clouds? Tropical cloud column density

Is it raining in the tropics today? Map of tropical rainfall

Are the seas high or low today? Sea surface height anomaly measurements

How high are the sea waves? Maps of ocean wave height

Where did it rain in the U.S.? Radar map of U.S. precipitation

Are there severe weather warnings in effect? Watch, warning and advisory display