![\"Himawari-8](\"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-content\/uploads\/sites\/5\/2018\/01\/180122_himawari8_Mayon_rgb_anim.gif\")
<\/a>Himawari-8 False-color RGB images [click to animate]<\/p><\/div>The first in a renewed series of eruptions of the Mayon Volcano in the Philippines began around 0450 UTC on 22 January 2018. As seen in Himawari-8 False-color Red-Green-Blue (RGB) images from the NOAA\/CIMSS Volcanic Cloud Monitoring<\/strong><\/a> site (above),<\/strong><\/em> the ash cloud was transported to the northwest.<\/p>\n Multi-spectral retrievals of the Ash Cloud Height (below)<\/strong><\/em> indicated that the ash reached altitudes of at least 10 km (dark blue)<\/em>.<\/p>\n Himawari-8 Ash Cloud Height product [click to animate]<\/p><\/div>A plot of rawinsonde data from nearby Legaspi at 00 UTC on 22 January (below)<\/strong><\/em> indicated that the 10 km altitude corresponded to a pressure of 285 hPa.<\/p>\n Plot of rawinsonde data from Legaspi, Philippines [click to enlarge]<\/p><\/div>A Suomi NPP VIIRS True-color RGB image from RealEarth<\/strong><\/a> (below)<\/strong><\/em> revealed some of the lower-altitude ash (shades<\/em> of tan to brown)<\/em> drifting toward the west at the satellite overpass time of 0507 UTC<\/strong><\/a>. Thermal anomalies — signatures of hot lava flows — are indicated by red dots.<\/p>\n<\/a><\/a>