The National Weather Service issued a Severe Flood Warning affecting Lake County and Volusia County Florida, for the St. Johns River near Astor in effect through September 30, 2026 at 11:00 AM EDT. The warning continued after an earlier expiration time of 23:00 on 28 September 2026 was superseded by the updated advisory.
Why the warning matters
The warning indicates that minor flooding was occurring and was forecast to persist, with the river expected to very slowly subside from a reported stage of 2.6 feet to about 2.3 feet later in the week. The extended timing and stage forecasts affect low-lying properties, docks, and roads along the St. Johns River near Astor and across adjacent neighborhoods in Lake County and Volusia County, increasing potential for water intrusion into yards and submerged docks.
Latest timeline and forecasts
The advisory period was clarified to remain active until 11:00 on 30 September 2026, replacing the prior end time of 23:00 on 28 September 2026. Forecast guidance showed the river holding near 2.6 feet initially before a gradual decline toward 2.3 feet later in the week. This pattern reflected slow subsidence rather than a rapid fall, maintaining minor flood conditions along the affected River reaches.
Impacts and safety guidance
Minor flooding has caused water to cover some roads and to inundate docks and low-lying properties near the St. Johns River in Astor. Motorists were advised to avoid driving through flooded areas and not to drive around barricades, and residents were cautioned when walking near riverbanks. For emergencies, dial 911. The National Weather Service recommended following local authorities and reporting observed flooding to emergency services so information could be relayed to response coordinators.
Monitoring and next updates
Officials emphasized that the situation remained dynamic and that updates would be provided as new observations became available. Agencies continued to monitor river stages and conditions across Lake County and Volusia County; residents were urged to stay tuned to official channels for any changes. Last update: 30 September 2026.
