Deep South Front Fuels 70 MPH Gusts, EF2 Tornado Threat — SevereWX

Deep South Front Fuels 70 MPH Gusts, EF2 Tornado Threat

A trailing cold front is setting the stage for scattered thunderstorms late this afternoon into evening across northern and central Alabama into northwest Georgia. SPC's Mesoscale Discussion 1818 highlights the risk, with a 40% chance of a watch issuance within the next couple hours.

As of 3 PM CDT, visible satellite imagery shows deepening cumulus and initial showers along the front from southern Middle Tennessee into northern Alabama and Mississippi. Despite modest synoptic support south of a Midwest upper low, diurnal heating is eroding weak inhibition, sparking storm development near convective temperatures.

Rich low-level moisture—dewpoints in the mid-to-upper 70s°F—combined with very warm temperatures yields hefty MLCAPE of 2000-3000 J/kg. Poor mid-level lapse rates are offset by this large buoyancy, while 20-30 kt of effective shear aids storm organization into lines and clusters.

The main hazards: damaging wind gusts of 55-70 mph from high PWATs and downdraft water loading, plus a low-end tornado risk up to 90 mph (EF2) in the most robust clusters over north-central Alabama, spreading into northwest Georgia and southeast Tennessee.

CAM guidance supports bands of storms along the front, with severe potential peaking this evening. Forecasters Lyons and Mosier note a watch is possible given the gust threat.

Affected areas include portions of WFOs BMX (Birmingham), HUN (Huntsville), FFC (Peachtree City), and MRX (Morristown), spanning from roughly I-20 in Alabama northward into northwest Georgia.

Stay alert if you're in the path—monitor radar and local NWS updates closely.

Preparedness tip: Secure outdoor items, have a severe weather plan, and know your safe shelter spot. Download a weather app for real-time alerts to keep your family safe.