Day 2 Convective Outlook
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Issued: · Valid: –
Summary
Isolated severe thunderstorms capable of producing damaging gusts are expected across parts of the Southeast on Tuesday afternoon.
Product Text
000 ACUS02 KWNS 210551 SWODY2 SPC AC 210549 Day 2 Convective Outlook NWS Storm Prediction Center Norman OK 1249 AM CDT Mon Sep 21 2026 Valid 221200Z - 231200Z ...THERE IS A MARGINAL RISK OF SEVERE THUNDERSTORMS OVER PARTS OF THE SOUTHEAST... ...SUMMARY... Isolated damaging gusts are possible over parts of the Southeast tomorrow (Tuesday). ...Synopsis... A low-amplitude mid-level trough will traverse the OH Valley as upper ridging builds back over the Plains states, and another upper trough meanders over the Southwest tomorrow (Tuesday). A surface cold front will continue to drift southward across the southern Appalachians into TX as high pressure ushers in a cooler and stable airmass from the north. Isolated to widely scattered thunderstorms will develop along and ahead of the cold front tomorrow afternoon. Severe potential should remain sparse overall given poor vertical wind shear along the cold front. However, a couple of damaging gusts may accompany wet downbursts with the stronger storm cores over parts of the Southeast, where upper 60s to low 70s F surface dewpoints will contribute to 2000 J/kg MLCAPE. ..Squitieri.. 09/21/2026 $$