BBS: TELESC.NET.BR Assunto: DAY1SVR: Day 1 Convective Outlook De: COD Weather Processor Data: Thu, 21 May 2026 16:17:44 +0000 ----------------------------------------------------------- ACUS01 KWNS 211617 SWODY1 SPC AC 211615 Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 1115 AM CDT Thu May 21 2026 Valid 211630Z - 221200Z ...THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS THIS AFTERNOON AND EVENING OVER PARTS OF EASTERN COLORADO.... ...SUMMARY... Thunderstorms capable of producing large hail and isolated severe gusts should occur across parts of the central/southern High Plains this afternoon and evening. A tornado or two may also occur. ...High Plains... Water vapor imagery shows an upper trough moving across western WY/CO. This feature will spread weak/broad large scale forcing for ascent across much of the High Plains from SD to NM this afternoon. At the surface, southerly low level winds have resulted in an axis of 40s/50s dewpoints along this corridor. Low clouds are slowly eroding, which should result in moderate CAPE values and aid in the development of widely scattered afternoon thunderstorms. Isolated storms will likely form first over parts of eastern NM. This activity will build slowly eastward toward west TX with a risk of large hail. By mid/late afternoon, storms will likely develop off the Raton and Palmer ridges, spreading eastward toward western KS this evening. Shear profiles in this area will be stronger than farther south, supporting longer-lived storms capable of large hail, damaging winds, and perhaps a tornado or two. An isolated cell or two may also produce occasional severe hail over parts of eastern WY and into the Black Hills region later this afternoon. ...Carolinas/VA... Clear skies are leading to strong heating over parts of southern VA into part of NC/SC. Scattered afternoon thunderstorms are expected to form in this zone, with steep low-level lapse rates and sufficient CAPE supporting a risk of gusty/damaging winds in the strongest cells. ..Hart/Lyons.. 05/21/2026 $$ = = = To unsubscribe from WX-STORM and you already have a login, go to https://lists.illinois.edu and use the "Unsubscribe" link. Otherwise email Chris Novy at cnovy@cox.net and ask to be removed from WX-STORM. --- SBBSecho 3.28-Linux * Origin: Capitol City Online (1:2320/107) ----------------------------------------------------------- [Voltar]