{"id":51159,"date":"2023-03-17T17:43:20","date_gmt":"2023-03-17T17:43:20","guid":{"rendered":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/?p=51159"},"modified":"2023-03-20T18:48:36","modified_gmt":"2023-03-20T18:48:36","slug":"polar-hyperspectral-soundings-in-a-numerical-model-and-the-hazardous-weather-testbed","status":"publish","type":"post","link":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/archives\/51159","title":{"rendered":"Polar Hyperspectral Soundings in a Numerical Model and the Hazardous Weather Testbed"},"content":{"rendered":"\n

This is the first in a series of posts on the 2023 version of PHSnMWnABI modeling. CIMSS<\/a> this year will again be supplying output to the Hazardous Weather Testbed (HWT<\/a>, from late May through mid-June 2023) from a modeling system that includes Polar Hyperspectral Soundings (Infrared and Microwave) that are fused with ABI data (refer to this paper<\/a> or this one<\/a> on Data Fusion). Blog Posts on the efficacy of this modeling system from last year’s HWT can be viewed here<\/a>. Model run output is available at this website<\/a> where you will see a calendar. Choose the day to view. Consider the 500-mb analysis shown below, at 1700 UTC from the 1200 UTC run on 17 March, when a slight risk of severe weather over the central Gulf Coast<\/a> was forecast by the Storm Prediction Center<\/a>. The strongest convection stretched southwest to northeast across extreme southeastern Louisiana into southwestern Alabama — the forecast convection has not yet reached Mobile. A second line of showers lingers over southeast Texas.<\/p>\n\n\n\n

\"\"<\/a>
Simulated composite refecltivity, 1700 UTC on 17 March 2023 from the PHS forecast model<\/figcaption><\/figure>\n\n\n\n

Radar observations from 1658 UTC (from this site) are shown below. There are similarities between the forecast above and reality below. Convection hasn’t reached Mobile; an area of lingering showers persists over southeast Texas. The leading edge of the storms is over greater New Orleans in southeastern Louisiana.<\/p>\n\n\n\n

\"\"<\/a>
NEXRAD Reflectivity 1658 UTC on 17 March 2023 (Click to enlarge)<\/figcaption><\/figure>\n\n\n\n

How did other convective-allowing models do with this event? The 4-panel below shows four different forecasts intialized, as above, at 1200 UTC and valid at 1700 UTC, 5 hours later (Imagery taken from the excellent TropicalTidbits website<\/a>)<\/p>\n\n\n\n

\"\"<\/a>
5-h forecasts of radar reflectivity, valid at 1700 UTC 17 March 2023, from the 3-km NAM (upper left), the FV3 (lower left), the WRF-ARW2 (upper right) and WRF-ARW) (lower right). Click to enlarge.<\/figcaption><\/figure>\n","protected":false},"excerpt":{"rendered":"

This is the first in a series of posts on the 2023 version of PHSnMWnABI modeling. CIMSS this year will again be supplying output to the Hazardous Weather Testbed (HWT, from late May through mid-June 2023) from a modeling system that includes Polar Hyperspectral Soundings (Infrared and Microwave) that are fused with ABI data (refer […]<\/p>\n","protected":false},"author":19,"featured_media":51161,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[145],"tags":[],"class_list":["post-51159","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-phs"],"acf":[],"_links":{"self":[{"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/posts\/51159","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\/19"}],"replies":[{"embeddable":true,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/comments?post=51159"}],"version-history":[{"count":4,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/posts\/51159\/revisions"}],"predecessor-version":[{"id":51205,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/posts\/51159\/revisions\/51205"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/media\/51161"}],"wp:attachment":[{"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/media?parent=51159"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/categories?post=51159"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/tags?post=51159"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}