![\"GOES-16](\"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/images\/2020\/10\/201008_goes16_infrared_glmFlashExtentDensity_visible_Hurricane_Delta_anim.gif\")
<\/a>GOES-16 \u201cClean\u201d Infrared Window (10.35 \u00b5m)<\/em> images (with and without an overlay of GLM Flash Extent Density) and \u201cRed\u201d Visible (0.64 \u00b5m)<\/em> images [click to play animation | MP4<\/strong><\/a>]<\/p><\/div>1-minute\u00a0Mesoscale Domain Sector<\/strong><\/a>\u00a0GOES-16\u00a0(GOES-East)<\/em>\u00a0\u201cClean\u201d Infrared Window (10.35 \u00b5m<\/strong><\/a>) images \u2014 with and without an overlay of\u00a0GLM<\/strong><\/a>\u00a0Flash Extent Density<\/strong><\/a>\u00a0\u2014 and \u201cRed\u201d Visible (0.64 \u00b5m<\/strong><\/a>) images\u00a0(above)<\/strong><\/em> showed showed Hurricane Delta<\/strong><\/a> as it intensified from a Category 2 to a Category 3 storm over the Gulf of Mexico during the daytime hours on 08 October 2020. Cloud-top infrared brightness temperatures of -90\u00baC and colder \u00a0(yellow pixels embedded within the darker shades of purple)<\/em> were occasionally seen within the eyewall region of Delta, along with intermittent bursts of lightning activity.<\/p>\n A toggle between Suomi NPP VIIRS Infrared Window (11.45 \u00b5m) and Visible (0.64 \u00b5m) images of Hurricane Delta<\/span> shortly before it intensified to a Category 3 storm are shown below; the coldest cloud-top infrared brightness temperature at that time was -93.0\u00baC.<\/span><\/p>\n Suomi NPP VIIRS Infrared Window (11.45 \u00b5m)<\/em> and Visible (0.64 \u00b5m)<\/em> images [click to enlarge]<\/p><\/div>In a time-matched comparison of Infrared images from <\/span>Suomi NPP<\/span> and GOES-16 (below)<\/strong>, <\/em>the coldest cloud-top infrared brightness temperature sensed by GOES-16 was 5.6\u00baC warmer (-87.4\u00baC); note the small northwestward parallax displacement<\/strong><\/a> that is inherent with GOES-16 imagery over the Gulf of Mexico. The same color enhancement is applied to both images.<\/span><\/p>\n Infrared images from Suomi NPP (11.45 \u00b5m)<\/em> and GOES-16 (10.35 \u00b5m)<\/em> [click to enlarge]<\/p><\/div>\n ===== 09 October Update =====<\/strong><\/p>\n Suomi NPP VIIRS Infrared Window (11.45 \u00b5m) and Day\/Night Band (0.7 \u00b5m) images [click to enlarge]<\/p><\/div>In a toggle between Suomi NPP VIIRS Infrared Window (11.45 \u00b5m) and Day\/Night Band (0.7 \u00b5m) images at 0734 UTC or 2:34 am CDT on 09 October (above)<\/strong>,<\/em> the coldest cloud-top infrared brightness temperature was -93.8\u00baC (just northwest of the storm center).<\/p>\n 1-minute GOES-16 Infrared and Visible images (below)<\/strong> <\/em>showed Category 2 Hurricane Delta making landfall in southwestern Louisiana at 2300 UTC<\/a><\/strong>, producing wind gusts<\/strong><\/a> as high as 100 mph at Texas Point, Texas.<\/p>\n GOES-16 \u201cClean\u201d Infrared Window (10.35 \u00b5m)<\/em> images (with and without an overlay of GLM Flash Extent Density) and \u201cRed\u201d Visible (0.64 \u00b5m)<\/em> images [click to play animation | MP4<\/strong><\/a>]<\/p><\/div>The MIMIC Total Precipitable Water<\/strong><\/a> product (below)<\/strong><\/em> indicated that Hurricane Delta was transporting a large amount of moisture northward across the Gulf of Mexico — rainfall totals<\/strong><\/a> included 15.64 inches at Evangeline Gardner, Louisiana.<\/p>\n MIMIC Total Precipitable Water product [click to enlarge]<\/p><\/div>The MIMIC-TC<\/strong><\/a> product (below)<\/strong><\/em> showed the deterioration of the eye and eyewall structure as Delta approached the Gulf Coast.<\/p>\n MIMIC-TC product [click to enlarge]<\/p><\/div>\n ===== 10 October Update =====<\/strong><\/p>\n Suomi NPP VIIRS True Color RGB images from 04 October and 10 October [click to enlarge]<\/p><\/div>A before (04 October) \/ after (10 October) comparison of Suomi NPP VIIRS True Color RGB images from the VIIRS Today<\/strong><\/a> site (above)<\/strong><\/em> revealed a marked increase of turbidity within the more shallow shelf waters of Texas and Louisiana, due to extensive mixing from the wind field associated with Delta. A comparison of VIIRS False Color images from those 2 days (below)<\/strong> <\/em>highlighted inland areas with significant flooding that resulted from heavy rainfall and\/or storm surge (darker shades of blue)<\/em>.<\/p>\n Suomi NPP VIIRS False Color RGB images from 04 October and 10 October [click to enlarge]<\/p><\/div>A GOES-16 River Flood Detection<\/strong><\/a> product viewed using RealEarth<\/strong><\/a> (below)<\/strong><\/em> helped to quantify the severity of flooding resulting from the landfall of Delta.<\/p>\n<\/a><\/a><\/a><\/a><\/a><\/a><\/a><\/a>