Flash Flood in Marion County, Texas
Flash Flood March 15, 2024 · Marion County, Texas
Where the report was made, with tornadoes recorded within 15 miles over the years.
What the National Weather Service wrote
Highway 49 from the northeast side of Jefferson to County Road 248 was flooded and closed.
The wider storm
Strong and deep convection became widespread over the Ark-La-Tex and downstream portions of southern Arkansas on March 15th. This occurred along an outflow boundary on the southwestern flank of a decaying MCS, and a favorable environment encouraged increased training over several hours. The mesoscale environment was characterized by ML CAPE of 1000-2000 J/kg, PWATs of 1.5-1.8 inches, and deep layer shear of 30-50 knots. In addition, a highly favorable coupled overlap of 850 mb convergence and 250 mb divergence helped to maintain deep convection. Convection trained from southwest to northeast, resulting in numerous reports of flash flooding across much of the Ark-La-Tex region with rainfall totals exceeding five inches in some areas.
Began near North Jefferson (32.7900, -94.3300).
Source: NOAA Storm Events Database, event 1171042. Narratives are written by the National Weather Service forecast office that issued the report.
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