Severe Storm Outlook Narrative (AC)
Issued by NWS
Issued by NWS
092 ACUS03 KWNS 190738 SWODY3 SPC AC 190737 Day 3 Convective Outlook NWS Storm Prediction Center Norman OK 0237 AM CDT Wed Aug 19 2026 Valid 211200Z - 221200Z ...THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS OVER NEBRASKA... ...SUMMARY... Scattered storms, some with severe wind gusts, are possible Friday afternoon over parts of the Carolinas. Isolated to scattered damaging hail and wind may occur over parts of the central Plains. ...Central Plains... Northwest winds aloft will increase across the central and northern Plains on Friday as a shortwave trough glances the area, and an upper ridge builds to the west. Temperatures aloft will also cool across this region, with -10 C at 500 mb pushing south to I-70 by Saturday morning. Strong and heating and a surface trough will develop during the afternoon across the northern to central High Plains, with southeast surface winds across the Plains. Sufficient moisture should remain in place for moderate instability to develop across much of NE and surrounding areas. While storm coverage is a bit uncertain, the conditional threat of large hail is high with elongated hodographs and deep-layer shear over 50 kt. Storms should form near the surface trough over southwest SD into northwest NE, and proceed southeastward. Swaths of damaging hail and wind are forecast. ...Carolinas... A weak upper trough will affect the northeastern quarter of the CONUS, with 20 kt midlevel winds extending south into the Carolinas. A front is forecast to move south across NC, with low pressure into SC an GA. A very moist air mass will remain ahead of this front, with mid 70s F dewpoints. Daytime heating will yield strong instability, with a strong signal for convection along this boundary. Numerous storms may occur, with strong to severe outflow winds. ..Jewell.. 08/19/2026 $$