{"id":16651,"date":"2014-09-08T23:59:34","date_gmt":"2014-09-08T23:59:34","guid":{"rendered":"http:\/\/cimss.ssec.wisc.edu\/satellite-blog\/?p=16651"},"modified":"2014-09-10T21:47:45","modified_gmt":"2014-09-10T21:47:45","slug":"record-rainfall-and-flooding-in-arizona","status":"publish","type":"post","link":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/archives\/16651","title":{"rendered":"Record rainfall and flooding in Arizona"},"content":{"rendered":"
\"GOES-15<\/a>

GOES-15 10.7 \u00b5m IR channel images (click to play animation)<\/p><\/div>\n

McIDAS images of 4-km resolution GOES-15 10.7 \u00b5m IR channel data (above; click image to play animation; also available as an MP4 movie file<\/a>)<\/strong><\/em> showed the merger of two large mesoscale convective systems (MCS) which produced an all-time record maximum calendar day precipitation amount of 3.29 inches at Phoenix Sky Harbor Airport (PHX) on 08 September 2014<\/strong><\/a>. Some locations in the Phoenix area received in excess of 5 inches<\/strong><\/a> of rainfall (NWS Phoenix event summary<\/strong><\/a>).<\/p>\n

An AWIPS-II image of 375-meter resolution Suomi NPP VIIRS 11.45 \u00b5m IR channel data (below)<\/strong><\/em> showed the MCS pair at 09:07 UTC or 3:07 AM local time —\u00a0 this was prior to the merger, and the southeastern storm exhibited a minimum cloud-top IR brightness temperature of -84\u00ba C (purple color enhancement),<\/strong><\/em> which was much colder than the -71\u00ba C seen with the northwestern storm. At the onset of the heavy thunderstorms at PHX, southerly to southeasterly winds\u00a0 — likely outflow from the southeastern MCS — gusted as high as 31 knots (36 mph)<\/em> and visibility was reduced to 0.8 mile (surface reports: text<\/strong><\/a> | graph<\/strong><\/a>).<\/p>\n

\"Suomi<\/a>

Suomi NPP VIIRS 11.45 \u00b5m IR channel image<\/p><\/div>\n

As the circulation of former-Hurricane Norbert continued to spin over the Pacific Ocean west of Baja California, deep tropical moisture kept working its way farther inland — GOES sounder Total Precipitable Water (TPW) values in excess of 50-60 mm (2.0 to 2.4 inches) were eventually seen across the southwestern half of Arizona (below; click image to play animation<\/strong><\/em>).<\/p>\n

\"GOES<\/a>

GOES sounder Total Precipitable Water derived product images (click to play animation)<\/p><\/div>\n

The Blended Total Precipitable Water product (below; click image to play animation)<\/strong><\/em> also showed values of 50-60 mm working their way into southwestern Arizona during the 06-08 September period.<\/p>\n

\"Blended<\/a>

Blended Total Precipitable Water product (click to play animation)<\/p><\/div>\n

The Percent of Normal TPW product (below; click image to play animation)<\/strong><\/em> indicated that these TPW values were in excess of 200% of normal (yellow color enhancement) <\/em>over large portions of the Desert Southwest. On the morning of 08 September, the TPW value of 2.03 inches derived from rawinsonde data at Tucson, Arizona set a record high for the month of September at that location.<\/p>\n

\"Percent<\/a>

Percent of Normal TPW product (click to play animation)<\/p><\/div>\n","protected":false},"excerpt":{"rendered":"

McIDAS images of 4-km resolution GOES-15 10.7 \u00b5m IR channel data (above; click image to play animation; also available as an MP4 movie file) showed the merger of two large mesoscale convective systems (MCS) which produced an all-time record maximum calendar day precipitation amount of 3.29 inches at Phoenix Sky Harbor Airport (PHX) on 08 […]<\/p>\n","protected":false},"author":18,"featured_media":16655,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[15,43,16,49,2,48],"tags":[],"class_list":["post-16651","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-goes-sounder","category-goes-15","category-heavy-rain-flooding","category-suomi_npp","category-tropical-cyclones","category-viirs"],"acf":[],"_links":{"self":[{"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/posts\/16651","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=16651"}],"version-history":[{"count":13,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/posts\/16651\/revisions"}],"predecessor-version":[{"id":16665,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/posts\/16651\/revisions\/16665"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/media\/16655"}],"wp:attachment":[{"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/media?parent=16651"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/categories?post=16651"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/tags?post=16651"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}