{"id":35710,"date":"2020-02-14T14:59:04","date_gmt":"2020-02-14T14:59:04","guid":{"rendered":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/?p=35710"},"modified":"2020-02-15T19:16:19","modified_gmt":"2020-02-15T19:16:19","slug":"mesoscale-convective-system-in-argentina-2","status":"publish","type":"post","link":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/archives\/35710","title":{"rendered":"Mesoscale Convective System in Argentina"},"content":{"rendered":"

\"GOES-16<\/a>

GOES-16 “Clean” Infrared Window (10.35 \u00b5m)<\/em> images [click to play animation | MP4<\/strong><\/a>]<\/p><\/div>GOES-16 (GOES-East)<\/em> “Clean” Infrared Window (10.35 \u00b5m<\/strong><\/a>) images (above)<\/strong> <\/em>showed a large Mesoscale Convective System (MCS) west of Resistencia (station identifier SARE) in far northern Argentina on 14 February 2020 — this MCS developed southeast of an area of low pressure that was situated well north of a slow-moving cold front (surface analyses<\/strong><\/a>). The coldest GOES-16 cloud-top infrared brightness temperature was -94.1\u00baC on the 0750 UTC image<\/strong><\/a>.<\/p>\n

VIIRS Infrared Window (11.45 \u00b5m) images from NOAA-20 (at 0452 UTC) and Suomi NPP (at 0541 UTC) as viewed using RealEarth<\/strong><\/a> (below)<\/strong><\/em> revealed intricate patterns of cloud-top waves and radial banding.<\/p>\n

\"VIIRS<\/a>

VIIRS Infrared Window (11.45 \u00b5m)<\/em> images from NOAA-20 (at 0452 UTC) and Suomi NPP (at 0541 UTC) [click to enlarge]<\/p><\/div>Plots of available NOAA-20 NUCAPS sounding points are shown below. NUCAPS profiles immediately north and south of the MCS revealed a very moist and unstable atmosphere, with Total Precipitable Water values around 2.4 inches and Most Unstable air parcel Convective Available Potential Energy (CAPE) values of 4500-5200 J\/kg. The red NUCAPS profile dots indicate points where both the infrared and microwave retrievals failed — these are located within the core of the MCS.<\/p>\n

\"Plots<\/a>

Plots of available NOAA-20 NUCAPS sounding points [click to enlarge]<\/p><\/div>

\"NUCAPS<\/a>

NOAA-20 NUCAPS profile just north of the MCS [click to enlarge]<\/p><\/div>

\"NUCAPS<\/a>

NOAA-20 NUCAPS profile just south of the MCS [click to enlarge]<\/p><\/div>
\nPlots of rawinsonde data<\/strong><\/a> from C\u00f3rdoba, Argentina (below)<\/strong><\/em> — located not far southwest of the MCS<\/a><\/strong> — indicated a tropopause temperature of -74.7\u00baC at an altitude of 16.4 km on 14 February at 12 UTC.<\/p>\n

\"Plots<\/a>

Plots of rawinsonde data from C\u00f3rdoba, Argentina [click to enlarge]<\/p><\/div> 
\n

<\/p>\n
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You’ll have to add one @70_dbz<\/a>… Here is a MCS over Argentina early this morn (0748 UTC). 18 km deep (according to GPM-DPR), with a -92 degC brightness temperature (according to GOES-16, on NASA Worldview). What. A. Beast. https:\/\/t.co\/KkSVpETkuk<\/a> pic.twitter.com\/KJU3jieuCp<\/a><\/p>\n

\u2014 Randy Chase (@DopplerChase) February 14, 2020<\/a><\/p><\/blockquote>\n