Saharan death dust putting the kibosh on 98L

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The latest disturbance for this hurricane season is blowing off the coast of Africa as we speak (type). None of the reliable models predict development, which can be attributed in to dry air (Saharan dust) and cool waters. True to form, the NHC is giving a 10% chance this system will reach tropical cyclone status by midweek…

The phenomena of the Saharan dust ( and accompanying SAL Saharan Air Layer) is a subject of much research and debate. Currently climatologists from NASA are studying its role in tropical storms. Specifically, they are investigating whether the SAL helps or hinders formation of tropical cyclones in the Northern Atlantic.

http://www.sciencedaily.com/releases/2013/06/130617130556.htm

Of course, this “magic dust” effects the climate on a global scale as well. Human health, weather patterns and marine life can all potentially feel an effect from the dust. However, not that all effects are bad, as one may assume…. A study concluded that dust from the Sahara traveled around the world to the Sierra Nevada and actually stimulated rainfall.

Image

Saharan dust, visible on this MODIS satellite image, is seen blowing from the Western Sahara into the Atlantic Ocean on Sept. 4, 2005

Random historical tidbit #weather- 1918   A single bolt of lightning struck 504 sheep dead in their tracks at the Wasatch National Forest in Utah. Sheep often herd together in storms, and as a result the shock from the lightning bolt was passed from one animal to another

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