{"id":10197,"date":"2012-04-22T23:59:37","date_gmt":"2012-04-22T23:59:37","guid":{"rendered":"http:\/\/cimss.ssec.wisc.edu\/satellite-blog\/?p=10197"},"modified":"2012-04-24T01:30:07","modified_gmt":"2012-04-24T01:30:07","slug":"record-high-temperatures-in-the-us-desert-southwest","status":"publish","type":"post","link":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/archives\/10197","title":{"rendered":"Record high temperatures in the US Desert Southwest"},"content":{"rendered":"<div style=\"width: 491px\" class=\"wp-caption aligncenter\"><a href=\"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-content\/uploads\/sites\/5\/2012\/04\/120422_modis_vis_lst_anim.gif\"><img loading=\"lazy\" decoding=\"async\" title=\"MODIS 0.65 \u00c2\u00b5m visible channel image + MODIS Land Surface Temperature product\" src=\"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-content\/uploads\/sites\/5\/2012\/04\/120422_modis_vis_lst_anim.gif\" alt=\"MODIS 0.65 \u00c2\u00b5m visible channel image + MODIS Land Surface Temperature product\" width=\"481\" height=\"340\" \/><\/a><p class=\"wp-caption-text\">MODIS 0.65 \u00c2\u00b5m visible channel image + MODIS Land Surface Temperature product<\/p><\/div>\n<p>A comparison of AWIPS images of 1-km resolution MODIS 0.65 \u00c2\u00b5m visible channel data and the corresponding 1-km resolution MODIS Land Surface Temperature (LST) product\u00c2\u00a0at 21:22 UTC on <a title=\"22 April 2012 daily weather map\" href=\"http:\/\/www.hpc.ncep.noaa.gov\/dailywxmap\/index_20120422.html\"><strong>22 April 2012<\/strong><\/a> <em><strong>(above)<\/strong><\/em> depicted marine layer stratus clouds extending inland along much of the California coast &#8212; but farther inland most areas were cloud-free, with some of the interior deserts exhibiting very hot LST values <em>(as high as <strong>148\u00c2\u00ba F<\/strong> in the Death Valley region of California, and <strong>139\u00c2\u00ba F<\/strong> in southern Nevada and southwestern Arizona)<\/em>.<\/p>\n<p>An overlay of the 21 UTC METAR surface reports <em><strong>(below)<\/strong><\/em> showed that instrument shelter air temperatures were only in the 50s and 60s F beneath the marine layer stratus along coastal California, but many air temperatures were over 100\u00c2\u00ba F in the interior deserts. A number of <a title=\"MODIS LST image with daily maximum air temperatures\" href=\"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-content\/uploads\/sites\/5\/2012\/04\/Max-Min_Temps_20120423_0000.png\"><strong>daily maximum temperature<\/strong><\/a> records were set on this day, including <strong>113\u00c2\u00ba F<\/strong> at Furnace Creek in Death Valley, California, <strong>105\u00c2\u00ba F<\/strong> in Phoenix, Arizona, and <strong>99\u00c2\u00ba F<\/strong> in Las Vegas, Nevada <em>(which tied their record for the warmest high temperature for the month of April, and was also the earliest occurrence of a 99\u00c2\u00ba F temperature).<\/em><\/p>\n<div style=\"width: 491px\" class=\"wp-caption aligncenter\"><a href=\"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-content\/uploads\/sites\/5\/2012\/04\/120422_modis_lst_metars_anim.gif\">many<img loading=\"lazy\" decoding=\"async\" title=\"MODIS Land Surface Temperature product + METAR surface reports\" src=\"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-content\/uploads\/sites\/5\/2012\/04\/120422_modis_lst_metars_anim.gif\" alt=\"MODIS Land Surface Temperature product + METAR surface reports\" width=\"481\" height=\"340\" \/><\/a><p class=\"wp-caption-text\">MODIS Land Surface Temperature product + METAR surface reports<\/p><\/div>\n<p style=\"text-align: center;\"><strong>===== 23 April Update =====<\/strong><\/p>\n<p>Following the hot daytime temperatures on 22 April, a night-time MODIS Land Surface Temperature image showed that many of the lower elevations were still quite warm at 09:19 UTC <em><strong>(below)<\/strong><\/em>. In Death Valley, California LST values were still as warm as 86\u00c2\u00ba F. Lower elevations in the Grand Canyon in Arizona exhibited LST values in the 60s and 70s F, while the higher elevation canyon rims had cooled into the 30s and 40s F. In Arizona, record high minimum temperatures for the date were set at Phoenix (<strong>77\u00c2\u00ba F<\/strong>) and Yuma (<strong>74\u00c2\u00ba F<\/strong>).<\/p>\n<div style=\"width: 490px\" class=\"wp-caption aligncenter\"><a href=\"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-content\/uploads\/sites\/5\/2012\/04\/MODIS_LST_20120423_0919.png\"><img loading=\"lazy\" decoding=\"async\" title=\"MODIS Land Surface Temperature product\" src=\"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-content\/uploads\/sites\/5\/2012\/04\/MODIS_LST_20120423_0919.png\" alt=\"MODIS Land Surface Temperature product\" width=\"480\" height=\"457\" \/><\/a><p class=\"wp-caption-text\">MODIS Land Surface Temperature product<\/p><\/div>\n","protected":false},"excerpt":{"rendered":"<p>A comparison of AWIPS images of 1-km resolution MODIS 0.65 \u00c2\u00b5m visible channel data and the corresponding 1-km resolution MODIS Land Surface Temperature (LST) product\u00c2\u00a0at 21:22 UTC on 22 April 2012 (above) depicted marine layer stratus clouds extending inland along much of the California coast &#8212; but farther inland most areas were cloud-free, with some [&hellip;]<\/p>\n","protected":false},"author":18,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[10,12],"tags":[],"class_list":["post-10197","post","type-post","status-publish","format-standard","hentry","category-general-interpretation","category-modis"],"acf":[],"_links":{"self":[{"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/posts\/10197","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/users\/18"}],"replies":[{"embeddable":true,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/comments?post=10197"}],"version-history":[{"count":9,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/posts\/10197\/revisions"}],"predecessor-version":[{"id":10199,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/posts\/10197\/revisions\/10199"}],"wp:attachment":[{"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/media?parent=10197"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/categories?post=10197"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/tags?post=10197"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}