{"id":14843,"date":"2014-01-27T23:59:51","date_gmt":"2014-01-27T23:59:51","guid":{"rendered":"http:\/\/cimss.ssec.wisc.edu\/satellite-blog\/?p=14843"},"modified":"2014-01-29T16:11:52","modified_gmt":"2014-01-29T16:11:52","slug":"record-january-temperatures-in-alaska","status":"publish","type":"post","link":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/archives\/14843","title":{"rendered":"Record high January temperatures in Alaska"},"content":{"rendered":"
\"Suomi<\/a>

Suomi NPP VIIRS 0.64 \u00c2\u00b5m visible channel and False-color RGB images<\/p><\/div>\n

A strong and persistent ridge of high pressure aloft (GOES water vapor image animation<\/strong><\/a>) along with a northward push of unusually warm air<\/strong><\/a> behind a poleward-moving frontal boundary (GOES IR image animation<\/strong><\/a>) helped some locations in Alaska set all-time record high temperatures for the month of January (including 51\u00c2\u00ba F at Nome<\/strong><\/a> and 52\u00c2\u00ba F at Denali National Park<\/strong><\/a>)<\/em>. An AWIPS I image comparison of 1-km resolution Suomi NPP VIIRS 0.64 \u00c2\u00b5m visible channel data and the corresponding false-color Red\/Green\/Blue (RGB) product at 23:57 UTC on 27 January 2014 (above)<\/strong><\/em> showed generally cloud-free conitions over much of the northwestern quarter of Alaska — at that time Nome (station identifier PAOM)<\/em> had a surface air temperature of 50\u00c2\u00ba F, with offshore (east-northeasterly)<\/em> winds. The Nome airport reported a snow depth of 12 inches on the morning of 27 January — however, there were several areas of bare ground (which appear as shades of cyan in the RGB image)<\/em> scattered across the Seward Peninsula<\/strong><\/a>. Snow and ice appear as varying shades of red on the RGB image; supercooled water droplet clouds appear as shades of white, with ice crystal clouds taking on a pink to lighter red hue.<\/p>\n

About an hour and a half earlier (22:14 UTC on 27 January), a closer look at the Seward Peninsula region using AWIPS II full-resolution (250 meter) Suomi NPP VIIRS visible and false-color RGB images (below)<\/strong><\/em> showed even more detail in terms of the location and size of the bare ground areas, with a few upwind of Nome (which was located approximately in the center of the images)<\/em>. Full sunshine and winds blowing across areas of snow-free ground likely helped to warm the air that was moving toward Nome. In addition to setting the all-time January high temperature of 51\u00c2\u00ba F, the morning low that day of 38\u00c2\u00ba F<\/strong><\/a> was also the warmest January minimum temperature on record for Nome.<\/p>\n

\"Suomi<\/a>

Suomi NPP VIIRS 0.64 \u00c2\u00b5m visible channel and False-color RGB images<\/p><\/div>\n","protected":false},"excerpt":{"rendered":"

A strong and persistent ridge of high pressure aloft (GOES water vapor image animation) along with a northward push of unusually warm air behind a poleward-moving frontal boundary (GOES IR image animation) helped some locations in Alaska set all-time record high temperatures for the month of January (including 51\u00c2\u00ba F at Nome and 52\u00c2\u00ba F […]<\/p>\n","protected":false},"author":18,"featured_media":14846,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[37,44,45,49,48],"tags":[],"class_list":["post-14843","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-arctic","category-awips-ii","category-redgreenblue-rgb-images","category-suomi_npp","category-viirs"],"acf":[],"_links":{"self":[{"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/posts\/14843","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=14843"}],"version-history":[{"count":14,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/posts\/14843\/revisions"}],"predecessor-version":[{"id":14859,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/posts\/14843\/revisions\/14859"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/media\/14846"}],"wp:attachment":[{"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/media?parent=14843"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/categories?post=14843"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/tags?post=14843"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}