Symptoms of UVH will depend on the cause of the problem. Symptoms can come. on suddenly or slowly, can be mild or severe, or may last for a few days or even. weeks. The most common symptoms include: ï· Dizziness or vertigo (described as a spinning sensation) ï· Poor balance, especially with head turns.
Positive-tilt Trough. An upper level system which is tilted to the east with increasing latitude (i.e., from southwest to northeast). A positive-tilt trough often is a sign of a weakening weather system, and generally is less likely to result in severe weather than a negative-tilt trough if all other factors are equal.
A very visual example of positive caster is a motorcycle's front steering forks. The forks point forward at the bottom and slope backward at the top. This rearward slope causes the front tire to remain stable when riding straight ahead and tilt towards the inside of the corner when turned.