


Severe Storm Outlook Narrative (AC)
Issued by NWS
Issued by NWS
461 ACUS03 KWNS 280724 SWODY3 SPC AC 280723 Day 3 Convective Outlook NWS Storm Prediction Center Norman OK 0223 AM CDT Sat Jun 28 2025 Valid 301200Z - 011200Z ...THERE IS A MARGINAL RISK OF SEVERE THUNDERSTORMS FOR PORTIONS OF THE OHIO VALLEY AND MID-ATLANTIC... ...SUMMARY... Scattered strong to severe thunderstorms are possible across parts of the Ohio Valley and the Mid-Atlantic on Monday. ...Synopsis... A mid-level trough will amplify as it moves through the western Great Lakes on Monday. Meanwhile, mid-level ridging will remain persistent across the western CONUS. At the surface, a cold front will move across the southern Great Lakes and Ohio Valley. High pressure will build into the Plains in the wake of this cold front. ...Ohio Valley... Moderate instability is forecast to develop ahead of the cold front in the Ohio Valley on Monday with dewpoints in the low 70s and temperatures warming to near 80. Mid-level flow around 25 to 30 knots may provide sufficient shear for some multicell clusters with a threat for damaging wind gusts Monday afternoon/evening. This threat should be mostly diurnally driven and wane after dark. ...Mid-Atlantic... Moderate instability is forecast east of the Appalachians on Monday as temperatures warm into the low to mid 90s with dewpoints in the mid to upper 60s. Shear will be quite weak, but steep low-level lapse rates will support some threat for damaging wind gusts. ..Bentley.. 06/28/2025 $$