


Severe Storm Outlook Narrative (AC)
Issued by NWS
Issued by NWS
286 ACUS48 KWNS 140830 SWOD48 SPC AC 140829 Day 4-8 Convective Outlook NWS Storm Prediction Center Norman OK 0329 AM CDT Mon Jul 14 2025 Valid 171200Z - 221200Z ...DISCUSSION... Upper ridging will build across the south-central and southeastern U.S. during the Day 4-8 period. This will confine a series of low-amplitude upper troughs to the northern tier of the U.S. along the international border. Bouts of strong to severe thunderstorm potential will be possible through the period as individual shortwaves provide modestly enhanced mid/upper westerly flow from the northern Plains to the Great Lakes vicinity. Given the generally low-amplitude nature the upper pattern across the northern U.S. through at least Day 6 or 7/Sat or Sun, the main driver of severe potential each day will be mesoscale features tied to prior days convective evolution, not well resolved at longer time scales. As a result, predictability is low. ..Leitman.. 07/14/2025