Nov 30, 2022
A very dynamic and deepening low pressure system moved through the Ohio Valley states on November 29-30 with a trailing cold. The air mass across Central Alabama was initially stable during the day on November 29th with surface dewpoints in the 40s and 50s. Instability increased dramatically the evening of the 29th as 60 plus surface dewpoints advected northward into Central Alabama. A QLCS developed ahead of the approaching cold front in addition to discrete thunderstorms.
Source: NOAA National Weather Service Storm Events Database (event 1066718). Narrative written by NWS staff at the time of the event.
This event is one of many recorded floods in Shelby County. See the full FEMA flood zone map, NFIP claim totals, and disaster history for the area.