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The red line is temperature, the green line is the dew point, and the black line is the air parcel lifted. In meteorology , convective available potential energy (commonly abbreviated as CAPE ), [ 1 ] is a measure of the capacity of the atmosphere to support upward air movement that can lead to cloud formation and storms.
Warm air has a lower density than cool air, so warm air rises within cooler air, [19] similar to hot air balloons. [20] Clouds form as relatively warmer air carrying moisture rises within cooler air. As the moist air rises, it cools, causing some of the water vapor in the rising packet of air to condense . [ 21 ]
Winds are depicted as blowing from the direction the flags are facing. Therefore, a northeast wind will be depicted with a line extending from the cloud circle to the northeast, with flags indicating wind speed on the northeast end of this line. [5] Once plotted on a map, an analysis of isotachs (lines of equal wind speeds) can be accomplished ...
The weather charts in some countries or regions mark troughs by a line. In the United States, a trough may be marked as a dashed line or bold line. In the UK, Hong Kong [1] and Fiji, [2] it is represented by a bold line extended from a low pressure center [3] or between two low pressure centers; [4] in Macau [5] and Australia, [6] it is a
Warm air has a lower density than cool air, so warm air rises within cooler air, [8] [better source needed] similar to hot air balloons. [citation needed] Clouds form as relatively warmer air carrying moisture rises within cooler air. As the moist air rises, it cools causing some of the water vapor in the rising packet of air to condense. [9]
A deadly storm that deluged much of the the Northeast has given way to frigid temperatures as tens of thousands of people grapple with no electricity in the cold.. More than 140,000 Maine power ...
A surface weather analysis for the United States on October 21, 2006. By that time, Tropical Storm Paul was active (Paul later became a hurricane). Surface weather analysis is a special type of weather map that provides a view of weather elements over a geographical area at a specified time based on information from ground-based weather stations.
The hot, rising air would then escape through windows near the ceiling to create a natural airflow. Architects also incorporated front porches onto houses to give homeowners some relief from the heat.