{"id":58608,"date":"2024-04-20T23:02:00","date_gmt":"2024-04-20T23:02:00","guid":{"rendered":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/?p=58608"},"modified":"2024-04-22T21:41:44","modified_gmt":"2024-04-22T21:41:44","slug":"severe-thunderstorms-produce-large-hail-and-damaging-winds-in-parts-of-north-carolina-and-south-carolina","status":"publish","type":"post","link":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/archives\/58608","title":{"rendered":"Severe thunderstorms produce large hail and damaging winds in parts of North Carolina and South Carolina"},"content":{"rendered":"
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1-minute GOES-16 \u201cRed\u201d Visible (0.64 \u00b5m, top) and \u201cClean\u201d Infrared Window (10.3 \u00b5m, bottom) images with time-matched (+\/- 3 minutes) SPC Storm Report plots, from 1915 UTC to 2137 UTC on 20 April [click to play animated GIF |\u00a0MP4<\/strong><\/a>]<\/p><\/div>\n

1-minute Mesoscale Domain Sector<\/strong><\/a> GOES-16 (GOES-East)<\/em> images showed clusters of severe thunderstorms that developed in the vicinity of the North Carolina \/ South Carolina border on 20 April 2024<\/strong><\/a> — \u201cRed\u201d Visible (0.64 \u00b5m<\/strong><\/a>) and \u201cClean\u201d Infrared Window (10.3 \u00b5m<\/strong><\/a>) images\u00a0(above)<\/strong><\/em> included time-matched plots of preliminary\/filtered SPC Storm Reports<\/strong><\/a> for these thunderstorms, which produced wind gusts as high as 90 mph<\/strong><\/a> and hail as large as 4.00 inches<\/strong><\/a> in South Carolina, and hail that was possibly as large as 4.50 inches in diameter in Lumberton, North Carolina (KLBT) at or around 2122 UTC (a toggle between the GOES-16 Visible and Infrared images at 2122 UTC is shown below, which portrayed a distinct overshooting top in the vicinity of that hail report). The coldest cloud-top 10.3 \u00b5m infrared\u00a0 brightness temperatures were around -70\u00baC (darker black enhancement) — according to a plot of 1200 UTC Greensboro NC<\/strong><\/a> rawinsonde data<\/strong><\/a>, that -70\u00baC cloud-top infrared brightness temperature represented a small overshoot of the local tropopause (which was -65.5\u00baC at 185 hPa or 12.5 km).<\/p>\n

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GOES-16 Visible and Infrared images at 2122 UTC [click to enlarge]<\/p><\/div>\n

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1-minute GOES-16 “Red” Visible (0.64 \u00b5m) images with an overlay of the CAPE and Lifted Index derived stability indices, from 1900-2300 UTC on 20 April [click to play animated GIF | MP4<\/strong><\/a>]<\/p><\/div>\n

1-minute GOES-16 Visible images combined with CAPE and Lifted Index Derived Stability Indices<\/strong><\/a>\u00a0in cloud-free skies\u00a0(above)<\/strong><\/em> indicated that an axis of instability existed in the general vicinity of a diffuse quasi-stationary frontal boundary, which was situated south of the developing thunderstorms. However, these severe thunderstorms were developing within a corridor of enhanced moisture that was located just north of the front, as seen in GOES-16 Visible images combined with the Total Precipitable Water<\/strong><\/a> derived product (below)<\/strong><\/em>.<\/p>\n

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1-minute GOES-16 “Red” Visible (0.64 \u00b5m) images with an overlay of the Total Precipitable Water derived product, from 1900-2300 UTC on 20 April [click to play animated GIF | MP4<\/strong><\/a>]<\/p><\/div>\n

1-minute GOES-16 Visible images with\/without an overlay of GLM<\/strong><\/a>\u00a0Flash Extent Density<\/strong><\/a>\u00a0(below)<\/strong><\/em> showed the lightning activity associated with these thunderstorms, which included periodic brief lightning jumps.<\/p>\n

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1-minute GOES-16 “Red” Visible (0.64 \u00b5m) images with\/without an overlay of GLM Flash Extent Density, from 1820-2300 UTC on 20 April [click to play animated GIF | MP4<\/strong><\/a>]<\/p><\/div>\n\n\n

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Today\u2019s 4.5 inch #Hail<\/a> in #LumbertonNC<\/a> is just the 13th(1950-2022) recorded hail stone over 4 inches in NC. https:\/\/t.co\/4V2yc9yBUd<\/a>@NCSCO<\/a> @NWSWilmingtonNC<\/a> @wxbrad<\/a> @katcampbellwx<\/a> pic.twitter.com\/DR1H30HdXw<\/a><\/p>— SERCC (@SERCC) April 21, 2024<\/a><\/blockquote>