Those strong winds combined with tidal conditions to push the water levels lower than usual on Clear Lake. The lake, which is really a brackish harbor that feeds into Galveston Bay, is impacted by tides.
Winds were so strong this weekend behind the cold front due to a very tight pressure gradient across the state. This basically means there is a big change in pressure over a small distance. Think of it like a soda can -- when you open it, air rushes out, leaving a place of high pressure inside the can to low pressure outside the can.EMBED