http://pulseplanet.com/sci-diaries/sd_mims Experimental science with sun and sky Thu, 20 Mar 2008 16:25:49 +0000 http://backend.userland.com/rss092 en On March 18, 2008, residents across South Texas were surprised to find their cars coated with a thick film of tan-colored mud from the recent rain. The National Weather Service told the San Antonio Express-News that the material was ash from fires in Mexico. The San Antonio TV meteorologists reported ... http://pulseplanet.com/sci-diaries/sd_mims/uncategorized/muddy-rain-across-south-texas