Dan
08-02-2006, 06:04 PM
what does this guy mean?
http://theliquidaddiction.com/
"Kinda Looks Like It maybe Logable at some point today little lines coming in and as This Storm approches PR the Wind will Start To blow Here due to a gradiant squeeze"
what is a gradient squeeze? so does that mean waves tommorow?
"The pressure gradient force is the force that is usually responsible for accelerating a parcel of air from a high atmospheric pressure region to a low pressure region, resulting in wind. In meteorology, pressure gradient force refers to the horizontal movement of air.
The pressure gradient force acts at right angles to isobars in the direction from high to low pressure. The greater the pressure difference over a given horizontal distance, the greater the force and hence the stronger the wind.
The pressure gradient force, however, is not the only force that acts on a moving parcel of air — if it were, then low and high pressure regions would eventually disappear. Other forces acting on a horizontaly moving parcel of air include; surface friction, coriolis force, centrifugal force. In large-scale atmospheric flows, the coriolis force generally balances the pressure gradient force, producing winds blowing largely along the isobars; however, near the surface the friction term is also important, generally giving an resulting net wind direction diagonal to the isobars (with a component blowing towards the low pressure center).":confused:
basically, whenever you look @ a wx map, you see H and L areas (hurricanes and cold fronts are always L pressure)... between the two the air is compressed and gains momentum... that momentum means wind; wind means waves. the sea breeze is a small scale version of pressure squeeze- L pressure forms over fla (heat rises, land heats up way quicker than water), and the pressure from the air rising over land pulls the air in from over the water, which is much more stable (temp-wise)- this is why you always have a breeze from the ocean by mid-day (and wind-swell waves... small, short-period); even though you had W winds early in the AM. cold fronts, too; that's what gives us kick-*** winter NE swells. cold fronts are on a much bigger scale than a sea-breeze... but same idea. as long as the wind is being squeezed in our direction for a decent amount of time (days) and the wind stays strong, then you will wind up w/ good surf- nice heights, longer periods, etc.
i will mail in my student loan pymt w/ pride this mth!!:D
http://theliquidaddiction.com/
"Kinda Looks Like It maybe Logable at some point today little lines coming in and as This Storm approches PR the Wind will Start To blow Here due to a gradiant squeeze"
what is a gradient squeeze? so does that mean waves tommorow?
"The pressure gradient force is the force that is usually responsible for accelerating a parcel of air from a high atmospheric pressure region to a low pressure region, resulting in wind. In meteorology, pressure gradient force refers to the horizontal movement of air.
The pressure gradient force acts at right angles to isobars in the direction from high to low pressure. The greater the pressure difference over a given horizontal distance, the greater the force and hence the stronger the wind.
The pressure gradient force, however, is not the only force that acts on a moving parcel of air — if it were, then low and high pressure regions would eventually disappear. Other forces acting on a horizontaly moving parcel of air include; surface friction, coriolis force, centrifugal force. In large-scale atmospheric flows, the coriolis force generally balances the pressure gradient force, producing winds blowing largely along the isobars; however, near the surface the friction term is also important, generally giving an resulting net wind direction diagonal to the isobars (with a component blowing towards the low pressure center).":confused:
basically, whenever you look @ a wx map, you see H and L areas (hurricanes and cold fronts are always L pressure)... between the two the air is compressed and gains momentum... that momentum means wind; wind means waves. the sea breeze is a small scale version of pressure squeeze- L pressure forms over fla (heat rises, land heats up way quicker than water), and the pressure from the air rising over land pulls the air in from over the water, which is much more stable (temp-wise)- this is why you always have a breeze from the ocean by mid-day (and wind-swell waves... small, short-period); even though you had W winds early in the AM. cold fronts, too; that's what gives us kick-*** winter NE swells. cold fronts are on a much bigger scale than a sea-breeze... but same idea. as long as the wind is being squeezed in our direction for a decent amount of time (days) and the wind stays strong, then you will wind up w/ good surf- nice heights, longer periods, etc.
i will mail in my student loan pymt w/ pride this mth!!:D