if the winds are out of the southwest ahead of a fast moving cold front and behind it northwest, what direction are the winds out of during the actual passgae of the cold front, not after it passes through? would they be strong too?
2007-10-01 02:53:05 · 3 answers · asked by Anonymous in Science & Mathematics ➔ Weather
Typically, as the frontal boundary gets very near (within a few miles) the wind will diminish and begin to turn more westerly. This is because the front normally lies in the middle of the pressure trough, where the gradient is weakest. Once the front passes, winds quickly increase as the pressure gradient increases again.
2007-10-01 04:34:35 · answer #1 · answered by cyswxman 7 · 0⤊ 0⤋
When cold front passes, there will be a wind shift of 45 degrees to 180 degrees.As per your statement, the wind shift is 90 degrees.So you can assume a shift of 45 degrees(half) when it was overhead and accordingly the direction would have been westerly.
As line-squalls and turbulence are possible when it is crossing, the wind may be very strong sometimes.
2007-10-01 04:08:06 · answer #2 · answered by Arasan 7 · 0⤊ 0⤋
sure, it would experience calm. Ever been in a warm air balloon? If the wind is going 20 mph , then so is the balloon. interior the balloon the air feels lifeless calm even nevertheless you will see that the tree tops under shifting from the comparable wind you're in.
2016-12-28 08:46:35 · answer #3 · answered by ? 3 · 0⤊ 0⤋