BBS: TELESC.NET.BR Assunto: DAY48SVR: Nws Storm Prediction Center Norman Ok De: COD Weather Processor Data: Thu, 19 Mar 2026 09:01:05 +0000 ----------------------------------------------------------- ACUS48 KWNS 190901 SWOD48 SPC AC 190859 Day 4-8 Convective Outlook NWS Storm Prediction Center Norman OK 0359 AM CDT Thu Mar 19 2026 Valid 221200Z - 271200Z ...DISCUSSION... On Sunday/D4, thunderstorms will be possible over parts of the OH Valley into the Appalachians, and perhaps as far south as the TN Valley, as an upper trough amplifies across the upper MS Valley and into the Great Lakes. A cold front is forecast to extend southwestward from a low over NY/PA, with perhaps lower 60s F dewpoints and MUCAPE on the order of 500-1500 J/kg possible. Models appear to have a wide range of instability values for Sunday, and as such predictability is low. However, there is at least some potential for strong to perhaps a few severe storms over the mid to upper OH Valley. The most likely scenario is for a marginal setup given the northwest flow pattern and modest-moisture-content warm sector. This front will push south toward the Gulf Coast on Monday/D5, with high pressure building in to the north. The upper trough will move across the Northeast on Monday, with another possibly amplifying across the Great Lakes/Northeast Tuesday/D6 into Wednesday/D7. As this occurs, an upper ridge is likely to exist across the Southwest, with little overall severe potential for those days. ..Jewell.. 03/19/2026 = = = 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]