![\"EUMETSAT](\"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-content\/uploads\/sites\/5\/2019\/04\/190415_meteosat11_shortwaveInfrared_Notre_Dame_Fire_anim.gif\")
<\/a>EUMETSAT Meteosat-11 Shortwave Infrared (3.92 \u00b5m)<\/em> images, with airport identifiers plotted in red [click to play animation | MP4<\/strong><\/a>]<\/p><\/div>The subtle thermal anomaly (or “hot spot”) from the Notre Dame Cathedral Fire was evident in 4.8-km resolution (at satellite nadir) EUMETSAT<\/strong><\/a> Meteosat-11 Shortwave Infrared (3.92 \u00b5m) imagery (above)<\/strong><\/em> as a cluster of brighter yellow pixels just north of Paris Orly International Airport (LFPO) near the center of the images on 15 April 2019.<\/p>\n The fire reportedly began around 1650 UTC; the maximum 3.92 \u00b5m brightness temperature sensed by Meteosat-11 was 284.5 K (11.35\u00baC) on the 1745 UTC<\/strong><\/a> image, not long after the fire had spread to the large spire of the cathedral (Meteosat-11 was actually scanning the Paris area at 1756 UTC, since the Meteosat Second Generation satellites scan each Full Disk from south to north)<\/em>. Clouds approaching from the west began to mask the fire signature at 1930 UTC.<\/p>\n Even though high clouds had begun to move overhead, a thermal signature (darker black pixel)<\/em> could still be seen in 1-km resolution Metop-A and Metop-C Shortwave Infrared (3.75 \u00b5m) images at 2009 and 2048 UTC (below<\/strong>, courtesy of William Straka, CIMSS)<\/em>. The maximum 3.75 \u00b5m brightness temperature detected by Metop was 291.1 K (18.0\u00baC).<\/p>\n