Winds Again Today (+0
High winds and rain pin the team down again today. The cranes are hunkered down in their pen, doing fine and facing into the wind. One panel of the pen was weakened so the team reinforced the tie-downs and stakes. Everything held fine during yesterday's 60-mph winds, but it is just as windy today. What causes such winds?
The low barometric pressure is to blame. Yesterday set a new record for the lowest atmospheric pressure ever observed over the continental USA. A red "L" on the weather map indicates a low pressure cell. Air normally rushes into low pressure like water into a funnel. In this case, the contrasting temperatures across the region squeeze the low pressure center (picture the funnel), forcing circulating winds into a tighter rotation. The greater the north-south contrast in temperature, the stronger the winds must blow to keep the atmosphere in equilibrium. Big contrasts in temperatures are usual in spring and fall, and this storm system is the result. Is it heading your way?