2006-12-14 10:03:29 · 5 answers · asked by darek g 1 in Science & Mathematics ➔ Weather
The system (often rotating) is at low pressure because the air is less dense due to moisture and/or heat relative to the surrounding air mass. The less dense air will rise and expand and cool off allowing the moisture to condense forming a cloud. When pilots soar in gliders they can actually rise in a circular path under a cloud rather than where it is clear and the sun is shining brightly. Bin there done that (as a passenger).
2006-12-14 10:42:35 · answer #1 · answered by Kes 7 · 0⤊ 0⤋
The low first MUST have moisture to work with either with the system itself, OR moving into a moist area, then clouds will develop as long there is plenty of updrafts feeding into the low itself. The stronger the low, and more moisture to work with the worse the weather that you get when it moves overhead. Clouds are the result of the vapor in the air cooling the the air masses' 'dew point' and the clouds form as the vapor condenses.
2006-12-14 10:14:12 · answer #2 · answered by weatherbuff900 3 · 1⤊ 0⤋
Ahead of the low you usually have warmer air. When the Low starts to wrap around the system ahead., it causes wind, rain, clouds, storms etc
2006-12-14 10:06:20 · answer #3 · answered by Dave S 3 · 0⤊ 0⤋
It's hard to tell these days with all the chem trails.
2006-12-14 10:11:49 · answer #4 · answered by flip4449 5 · 0⤊ 0⤋
NOW ADAYS, ANYTHING CAN HAPPEN !!!
2006-12-17 10:59:05 · answer #5 · answered by Joseph W 2 · 0⤊ 0⤋