Severe Storm Outlook Narrative (AC)
Issued by NWS
Issued by NWS
911 ACUS02 KWNS 300459 SWODY2 SPC AC 300458 Day 2 Convective Outlook NWS Storm Prediction Center Norman OK 1158 PM CDT Sun Sep 29 2024 Valid 011200Z - 021200Z ...NO SEVERE THUNDERSTORM AREAS FORECAST... ...SUMMARY... Severe thunderstorms are not expected on Tuesday. ...Synopsis... A weakening shortwave trough will progress east over the Lower Mid-Atlantic States on Tuesday and offshore Tuesday night. Isolated thunderstorms will be possible over eastern North Carolina to far southeast Virginia during the afternoon before the trough departs. A strong upper-level trough will move across parts of the northern Great Lakes. A surface cold front associated with this trough will similarly move eastward, progressing into the lower Ohio Valley and the lower Great Lakes through the afternoon and evening. With surface dewpoints in the low 60s, marginal surface-based buoyancy of 500-750 J/kg MLCAPE could develop ahead of the front. Warm 700 mb temperatures and weak low-level winds suggest severe storms are unlikely. Elsewhere, widely scattered to scattered storms are possible in the Florida Peninsula where sea breeze boundaries are likely to initiate storms in a moist environment. Mid-level moisture near the Mogollon Rim into parts of southern Arizona may promote isolated thunderstorm development during the afternoon. ..Wendt.. 09/30/2024 $$