The classic symptom of plantar fasciitis is heel pain when you take your first steps after getting out of bed or after sitting for a long period of time. You may also have: Stiffness and pain in the morning or after resting that gets better after a few steps but gets worse as the day progresses.
When air masses meet. When a moving cold air mass meets a warm air mass, that is lighter, it tends to wedge below the latter, thus giving origin to a cold front. The warm air is forced upwards and its ascent causes the formation of clouds.
Cold Front - Cold air is overtaking warm air. Since cold air is denser than warm air, cold air undercuts a warm air mass. This produces a more concentrated line of heavy precipitation as the push of the cold air literally lifts the warm air just ahead of the front. This lifting of the air many times causes thunderstorms or very heavy showers.