{"id":49611,"date":"2022-12-23T21:59:00","date_gmt":"2022-12-23T21:59:00","guid":{"rendered":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/?p=49611"},"modified":"2023-01-02T20:32:05","modified_gmt":"2023-01-02T20:32:05","slug":"satellite-signature-of-blowing-snow-across-the-north-central-us","status":"publish","type":"post","link":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/archives\/49611","title":{"rendered":"Satellite signature of blowing snow across the north-central US"},"content":{"rendered":"

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GOES-16 Day Snow-Fog RGB images, with and without plots of hourly surface reports [click to play animated GIF | MP4<\/strong><\/a>]<\/p><\/div>GOES-16 (GOES-East)<\/em> Day Snow-Fog RGB<\/strong><\/a> images (above)<\/strong><\/em> showed widespread horizontal convective rolls (HCRs) that were streaming southeastward across much of the north-central US — in the wake of a strong arctic cold front — on 22 December 2022<\/strong><\/a>. This HCR signature is often accompanied by significant blowing snow; in fact, many Interstate highways were closed on this day in portions of North Dakota, South Dakota and Iowa. Wind gusts as high as 60 mph<\/strong><\/a> were recorded in South Dakota.<\/p>\n

On 23 December<\/strong><\/a>, GOES-16 Day Snow-Fog RGB images (below)<\/strong><\/em> displayed a long but narrow plume of HCRs that originated over the southern end of Lake Manitoba — which crossed the US\/Canada border and streamed across far northeastern North Dakota and northwestern Minnesota. Surface visibility was reduced to 1\/4 mile at some sites in Minnesota where the HCR signature was observed; wind gusts as high as 52 mph<\/strong><\/a> were reported across that area.<\/p>\n

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GOES-16 Day Snow-Fog RGB images, with and without plots of hourly surface reports [click to play animated GIF | MP4<\/strong><\/a>]<\/p><\/div>These blowing snow events occurred during a significant and widespread outbreak of arctic air across much of the Lower 48 states during the 21 December – 23 December period, as an anomalously-deep<\/strong><\/a> mid-tropospheric trough descended southward and southeastward from Canada — GOES-16 Air Mass RGB<\/strong><\/a> images (below)<\/strong><\/em> displayed the beige to pale orange hues that are normally associated with such arctic outbreaks (for example, in January 2019<\/strong><\/a>). On the morning of 22 December, two locations in western Montana reported low temperatures of –50\u00baF<\/strong><\/a> (the first occurrence of -50\u00baF in the Lower 48 states during the 2022-2023 winter season).<\/p>\n

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GOES-16 Air Mass RGB images [click to play animated GIF | MP4<\/strong><\/a>]<\/p><\/div>Additional details and imagery of this arctic outbreak and associated episodes of blowing snow can be found on the Satellite Liaison Blog<\/strong><\/a>.<\/p>\n","protected":false},"excerpt":{"rendered":"

GOES-16 (GOES-East) Day Snow-Fog RGB images (above) showed widespread horizontal convective rolls (HCRs) that were streaming southeastward across much of the north-central US — in the wake of a strong arctic cold front — on 22 December 2022. This HCR signature is often accompanied by significant blowing snow; in fact, many Interstate highways were closed […]<\/p>\n","protected":false},"author":18,"featured_media":49613,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[74,45,5],"tags":[],"class_list":["post-49611","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-goes-16","category-redgreenblue-rgb-images","category-winter-weather"],"acf":[],"_links":{"self":[{"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/posts\/49611","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=49611"}],"version-history":[{"count":15,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/posts\/49611\/revisions"}],"predecessor-version":[{"id":49668,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/posts\/49611\/revisions\/49668"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/media\/49613"}],"wp:attachment":[{"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/media?parent=49611"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/categories?post=49611"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/tags?post=49611"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}