Overview

• Flash flood warnings are in effect until 11 p.m. Wednesday for Bucks, Montgomery, Philadelphia and Chester counties after Doppler radar recorded intense rainfall bursts.
• Flood watches covering Blount, Etowah, Cherokee, Calhoun, Jefferson and St. Clair counties in Alabama run through 1 a.m. Thursday amid continued heavy showers.
• Flood advisories for Livingston County, Michigan, and Baldwin County, Alabama, warn of minor urban and small-stream flooding risks and expire by midnight and early Thursday morning.
• The National Weather Service’s tiered system of watches, advisories and warnings uses real-time measurements to tailor county-level alerts with specific effective windows.
• Officials reiterated the safety mantra “Turn around, don’t drown,” urging motorists to avoid flooded roads and seek higher ground at the first sign of rising water.