CENAPRED reported that emissions of steam and gas from Popocatépetl were visible during 12-18 March. The plumes occasionally contained slight amounts of ash. Ash plumes on 17 March rose to altitudes of 7.4-7.9 km (24,300-26,000 ft) a.s.l. and drifted NE.
Sources: Centro Nacional de Prevencion de Desastres (CENAPRED) – “Reports provided courtesy of the Smithsonian’s Global Volcanism Program and the US Geological Survey’s Volcano Hazards Program.”