{"id":18871,"date":"2021-05-21T10:34:48","date_gmt":"2021-05-21T15:34:48","guid":{"rendered":"https:\/\/inside.nssl.noaa.gov\/ewp\/?p=18871"},"modified":"2021-05-21T10:34:48","modified_gmt":"2021-05-21T15:34:48","slug":"nmda-detected-over-a-weak-tor-without-ntda-detection","status":"publish","type":"post","link":"https:\/\/inside.nssl.noaa.gov\/ewp\/2021\/05\/21\/nmda-detected-over-a-weak-tor-without-ntda-detection\/","title":{"rendered":"NMDA detected over a weak TOR without NTDA detection"},"content":{"rendered":"<p>There was a public report of a small tornado just east of I-25 in CYS\u2019s forecast area at 20:54Z. Base velocity data from the KCYS radar was pretty unimpressed showing some weak rotation at 20:51Z. The NTDA didn\u2019t have a detection with it but the NMDA was detecting a meso with a medium azShear Max and low azShear Average. The stronger rotation was above the 0.5\u00b0 with the NMDA triggering on the 0.9 to 2.4\u00b0 tilts. I\u2019m unsure that would have provided enough confidence to issue a tornado warning. But the NMDA could\u2019ve given some clue to the potential for a tornado. There was no SAILS data for this event, so maybe if we had additional 0.5\u00b0 scans then we would have seen a stronger rotation signal in the base velocity.<\/p>\n<figure id=\"attachment_18872\" aria-describedby=\"caption-attachment-18872\" style=\"width: 1600px\" class=\"wp-caption alignnone\"><a href=\"https:\/\/inside.nssl.noaa.gov\/ewp\/wp-content\/uploads\/sites\/22\/2021\/05\/nmda_detected_20210520_gerry_1.png\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-18872\" src=\"https:\/\/inside.nssl.noaa.gov\/ewp\/wp-content\/uploads\/sites\/22\/2021\/05\/nmda_detected_20210520_gerry_1.png\" alt=\"\" width=\"1600\" height=\"872\" srcset=\"https:\/\/inside.nssl.noaa.gov\/ewp\/wp-content\/uploads\/sites\/22\/2021\/05\/nmda_detected_20210520_gerry_1.png 1600w, https:\/\/inside.nssl.noaa.gov\/ewp\/wp-content\/uploads\/sites\/22\/2021\/05\/nmda_detected_20210520_gerry_1-900x491.png 900w, https:\/\/inside.nssl.noaa.gov\/ewp\/wp-content\/uploads\/sites\/22\/2021\/05\/nmda_detected_20210520_gerry_1-768x419.png 768w, https:\/\/inside.nssl.noaa.gov\/ewp\/wp-content\/uploads\/sites\/22\/2021\/05\/nmda_detected_20210520_gerry_1-1536x837.png 1536w, https:\/\/inside.nssl.noaa.gov\/ewp\/wp-content\/uploads\/sites\/22\/2021\/05\/nmda_detected_20210520_gerry_1-600x327.png 600w\" sizes=\"auto, (max-width: 767px) 100vw, (max-width: 1200px) 60vw, 720px\" \/><\/a><figcaption id=\"caption-attachment-18872\" class=\"wp-caption-text\">PUBLIC REPORT OF A SMALL TORNADO 1\/2 MILE TO THE EAST OF INTERSTATE 25 AT MILE MARKER 34 | Laramie County | 25 miles N of Cheyenne<\/figcaption><\/figure>\n<figure id=\"attachment_18873\" aria-describedby=\"caption-attachment-18873\" style=\"width: 1600px\" class=\"wp-caption alignnone\"><a href=\"https:\/\/inside.nssl.noaa.gov\/ewp\/wp-content\/uploads\/sites\/22\/2021\/05\/nmda_detected_20210520_gerry_2.png\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-18873\" src=\"https:\/\/inside.nssl.noaa.gov\/ewp\/wp-content\/uploads\/sites\/22\/2021\/05\/nmda_detected_20210520_gerry_2.png\" alt=\"\" width=\"1600\" height=\"900\" srcset=\"https:\/\/inside.nssl.noaa.gov\/ewp\/wp-content\/uploads\/sites\/22\/2021\/05\/nmda_detected_20210520_gerry_2.png 1600w, https:\/\/inside.nssl.noaa.gov\/ewp\/wp-content\/uploads\/sites\/22\/2021\/05\/nmda_detected_20210520_gerry_2-900x506.png 900w, https:\/\/inside.nssl.noaa.gov\/ewp\/wp-content\/uploads\/sites\/22\/2021\/05\/nmda_detected_20210520_gerry_2-768x432.png 768w, https:\/\/inside.nssl.noaa.gov\/ewp\/wp-content\/uploads\/sites\/22\/2021\/05\/nmda_detected_20210520_gerry_2-1536x864.png 1536w, https:\/\/inside.nssl.noaa.gov\/ewp\/wp-content\/uploads\/sites\/22\/2021\/05\/nmda_detected_20210520_gerry_2-600x338.png 600w, https:\/\/inside.nssl.noaa.gov\/ewp\/wp-content\/uploads\/sites\/22\/2021\/05\/nmda_detected_20210520_gerry_2-1200x675.png 1200w\" sizes=\"auto, (max-width: 767px) 100vw, (max-width: 1200px) 60vw, 720px\" \/><\/a><figcaption id=\"caption-attachment-18873\" class=\"wp-caption-text\">0.5, 0.9, 1.3 and 1.8\u00b0 tilts from the KCYS radar at 20:51Z.<\/figcaption><\/figure>\n<p>&#8211; Gerry Bertier<\/p>\n","protected":false},"excerpt":{"rendered":"<p>There was a public report of a small tornado just east of I-25 in CYS\u2019s forecast area at 20:54Z. Base velocity data from the KCYS radar was pretty unimpressed showing&#8230; <\/p>\n<p class=\"link-more\"><a href=\"https:\/\/inside.nssl.noaa.gov\/ewp\/2021\/05\/21\/nmda-detected-over-a-weak-tor-without-ntda-detection\/\" class=\"more-link\">Read more \u00bb<\/a><\/p>\n","protected":false},"author":139,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[55,79],"class_list":["post-18871","post","type-post","status-publish","format-standard","hentry","category-news","tag-nmda","tag-ntda"],"_links":{"self":[{"href":"https:\/\/inside.nssl.noaa.gov\/ewp\/wp-json\/wp\/v2\/posts\/18871","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/inside.nssl.noaa.gov\/ewp\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/inside.nssl.noaa.gov\/ewp\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/inside.nssl.noaa.gov\/ewp\/wp-json\/wp\/v2\/users\/139"}],"replies":[{"embeddable":true,"href":"https:\/\/inside.nssl.noaa.gov\/ewp\/wp-json\/wp\/v2\/comments?post=18871"}],"version-history":[{"count":1,"href":"https:\/\/inside.nssl.noaa.gov\/ewp\/wp-json\/wp\/v2\/posts\/18871\/revisions"}],"predecessor-version":[{"id":18874,"href":"https:\/\/inside.nssl.noaa.gov\/ewp\/wp-json\/wp\/v2\/posts\/18871\/revisions\/18874"}],"wp:attachment":[{"href":"https:\/\/inside.nssl.noaa.gov\/ewp\/wp-json\/wp\/v2\/media?parent=18871"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/inside.nssl.noaa.gov\/ewp\/wp-json\/wp\/v2\/categories?post=18871"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/inside.nssl.noaa.gov\/ewp\/wp-json\/wp\/v2\/tags?post=18871"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}