Monday, April 8, 2013

Monday 4/8

Temperature: 37°F (High 46°F)
Humidity: 93%
Pressure: 1009.1 mb
Wind Speed: NE 3 mph

Today is a typical gloomy spring day. The sky has been covered with stratus clouds all day, and there has been quite a bit of humidity in the air, which was visible earlier in the fog. The temperatures have actually been pretty pleasant though, and there's hardly any wind. In Wisconsin, the temperatures are still fluctuating between warm and cold, and we're still waiting for the temperatures to heat up evenly all the up through the atmosphere. Right now, the upper atmosphere is still much colder than the surface temperatures, and we won't see constant warm temps until it warms. How does it warm, you ask? Well as the winds shift to the south, we will see more warm air come our way, but to really heat up the upper atmosphere, we need storms! The vertical growth of thunderclouds release immense amounts of energy high in the atmosphere, which helps to warm it up. There aren't any storms today, but hopefully we will be seeing some soon. There are some major low pressure systems that are constantly forming in Eastern Colorado (Colorado Lows) that could eventually bring some thunderstorms our direction. But today, there is a major stationary front serving as a wall that cuts off virtually the entire Midwest.


Also, if you don't know much about stationary fronts, you can imagine them as a very evenly matched game of backwards tug-o'-war against warm and cold air (in this case the cold air is trying push south and the warm is trying to push northward). If you look at the wind map, you can see that the winds are blocked by the stationary front and move parallel across it in the direction of the low.

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