Gulf Coast Downpours Fade as SPC Eyes Isolated Morning Severe From Oklahoma to Arkansas

Forecasters report earlier training storms with 1–2 inch hourly rates have waned, leaving a localized hail or wind risk with no new watch expected.

Overview

SPC Mesoscale Discussion 177 early Monday highlights isolated severe potential this morning from southeast Oklahoma and northeast Texas into Arkansas and far northwest Louisiana, with watch issuance considered unlikely.
WPC late Saturday into Sunday flagged heavy rain along the northwest and north-central Gulf Coast and South-Central Texas, where training, backbuilding, and cell mergers supported 1–2.5 in/hr and local totals near 4 inches.
Urban corridors were cited as most vulnerable to brief flash flooding given intense short-duration rates, even as regional drought kept broader flash-flood guidance comparatively high.
SPC Severe Thunderstorm Watch 27 covered South-Central Texas Saturday for large hail to 1.5 inches and isolated damaging winds to 70 mph; subsequent discussions noted weakening convection overnight and no new watch for Deep South Texas.
Earlier MPDs and SPC analyses documented mesoscale drivers—including frontal boundaries, an MCV, a strong low-level jet, and mesocyclones—that focused moisture and lift to produce localized but impactful storms as the threat zone shifted east and south.