![\"GOES-16](\"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/images\/2020\/12\/201224_goes16_visible_Tehuano_anim.gif\")
<\/a>Topography + GOES-16 “Red” Visible (0.64 \u00b5m)<\/em> images [click to play animation | MP4<\/strong><\/a>]<\/p><\/div>GOES-16 (GOES-East)<\/em> “Red” Visible (0.64 \u00b5m<\/strong><\/a>) images (above)<\/strong><\/em> indicated that a strong arctic cold front (surface analyses<\/strong><\/a>) had plunged southward across Mexico, through the Chivela Pass, and emerged as a Tehuano (or “Tehuantepecer<\/strong><\/a>“) gap wind into the Gulf of Tehuantepec on 24 December 2020. Along the Gulf of Mexico coast, a few sites in Mexico reported blowing dust and\/or blowing sand with onshore winds gusting to 40 knots.<\/p>\n GOES-16 True Color RGB images created using\u00a0Geo2Grid<\/strong><\/a>\u00a0(below)<\/strong>\u00a0<\/em>showed the hazy signature of blowing dust\/sand as it was transported off the south coast of Mexico and spread out across the Gulf of Tehuantepec.<\/p>\n GOES-16 True Color RGB images [click to play animation | MP4<\/strong><\/a>]<\/p><\/div>\n ===== 25 December Update =====<\/strong><\/p>\n GOES-16 “Red” Visible (0.64 \u00b5m) images [click to play animation | MP4<\/strong><\/a>]<\/p><\/div>On the following day, GOES-16 Visible images (above)<\/strong><\/em> showed that the leading edge of the gap wind flow — marked by a broad arc cloud — was approaching the ITCZ \/ Monsoon Trough in the Pacific Ocean. Ship reports of 30-35 knot winds were seen within the offshore flow — and ASCAT surface scatterometer winds<\/strong><\/a> revealed speeds as high as 44 knots.<\/p>\n GOES-16 True Color RGB images (below)<\/strong>\u00a0<\/em>showed the hazy signature of blowing dust from Mexico as it spread out across the Pacific Ocean.<\/p>\n GOES-16 True Color RGB images [click to play animation | MP4<\/strong><\/a>]<\/p><\/div>Aided by enhanced forward scattering during the morning hours, True Color RGB images from <\/span>GOES-17 (<\/em><\/span>GOES-West)<\/span><\/em> showed the hazy signature of airborne dust from Mexico a bit better (below)<\/strong><\/em>.<\/span><\/p>\n<\/a><\/a><\/a>