National Weather Service issued a Severe Flood Warning for Lake County and Volusia County, Florida, for the St. Johns River near Astor on 25 September 2026 and extended it through 11:00 AM EDT on 30 September 2026. The warning originally indicated the river would crest at 2.8 feet early Sunday morning with a flood stage of 2.3 feet.
Why the warning matters
The warning signaled that minor flooding was occurring and forecast to continue, placing roads, docks and low-lying properties at risk in areas adjacent to the St. Johns River. Residents in Lake County and Volusia County were advised to avoid driving through flooded areas and to report observed flooding to local emergency services; in an emergency, dial 911.
Forecast updates and timing
Initial messaging from the National Weather Service at 9:19 PM EDT on 25 September 2026 set the warning to remain active until 11:00 AM EDT on 26 September 2026, with a predicted crest of 2.8 feet early Sunday morning above the 2.3-foot flood stage. Subsequent updates extended the warning through 11:00 AM EDT on 30 September 2026 and adjusted projections, indicating the river would very slowly subside from 2.6 feet that night to 2.3 feet later in the week.
Observed conditions and guidance for residents
Minor flooding was reported at locations along the St. Johns River near Astor as northerly winds and tidal effects contributed to the rise. The warning described water potentially covering roads, docks and low-lying properties. Motorists were warned not to drive around barricades and pedestrians were urged to exercise caution near riverbanks.
Reporting and further information
Authorities requested that residents relay observations of flooding to local emergency services or law enforcement, which can pass reports to the National Weather Service. For safety and official updates, the public was instructed to follow guidance from local authorities and to call 911 for emergencies. Last update: 30 September 2026.
