March 12, 2014

Dust over Central US and Cloudy Skies over Baltimore

NOAA Hazard Mapping System Fire and Smoke Product reported the presence of dust in the vicinity of Colorado/Kansas. They also indicated that the aloft dust was seen across central Mississippi into the Gulf of Mexico and back across into the Sierra Madre. Optical column size distribution retrieved from sun photometer at the CART Site how the presence of coarse particulate (radius in the range of 1-10 microns) aloft.

EPA's Airnow animation shows Moderate PM2.5 AQI levels along the eastern half of the US. Surface inversion limited mixing and contributed to rising particle concentrations. A low pressure system developed along the frontal boundary over the central Mid-Atlantic region in the morning, and intensified as it moves northeastward toward the NJ coast. Stagnation favored particle accumulation in the morning hours. Lidar observations at UMBC show clouds associated with the low pressure system over the region. Particles were observed up to 3 km in the early morning hours, with clouds advecting after 12:00 UTC (8:00 am EDT).

Posted by Ruben Delgado at March 12, 2014 11:12 PM
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