Flash Flood Warning — Cullman County, Alabama

🌊 Active: Flash Flood Warning

Flash Flood Warning issued August 20 at 11:56PM CDT until August 21 at 3:00AM CDT by NWS Huntsville AL

FFWHUN The National Weather Service in Huntsville has issued a * Flash Flood Warning for... Northeastern Cullman County in north central Alabama... Southeastern Madison County in north central Alabama... Southeastern Morgan County in north central Alabama... DeKalb County in northeastern Alabama... Southern Jackson County in northeastern Alabama... Marshall County in northeastern Alabama... * Until 300 AM CDT. * At 1156 PM CDT, Doppler radar indicated thunderstorms producing heavy rain across northeast Alabama, especially along Sand Mountain and Lookout Mountain. Between 1 and 3 inches of rain have fallen. Additional rainfall amounts of 1 to 2 inches are possible across this area. Flash flooding is ongoing or expected to begin shortly. HAZARD...Flash flooding caused by thunderstorms. SOURCE...Radar indicated. IMPACT...Flash flooding of small creeks and streams, urban areas, highways, streets and underpasses as well as other poor drainage and low-lying areas. * Some locations th

Effective August 21, 2026 at 12:56 AM ET · Expires August 21, 2026 at 4:00 AM ET

📋 Official NWS Guidance

Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. Be especially cautious at night when it is harder to recognize the dangers of flooding. In hilly terrain there are hundreds of low water crossings which are potentially dangerous in heavy rain. Do not attempt to cross flooded roads. Find an alternate route.