1 warning is in effect for Seminole County, FL. The most serious is a flood warning.
Since 2016 the National Weather Service has issued about 759 alerts that included Seminole County, roughly 76 a year. The most common is the flood advisory (172 from 2016 to 2025). The last tornado warning was issued on March 15, 2026. 31 tornadoes have touched down in the county since 1950.
Updated from the National Weather Service · lists refresh hourly; the live map loads current alerts directly from the NWS
FLOOD WARNING REMAINS IN EFFECT UNTIL FURTHER NOTICE
Full alert text
...The Flood Warning continues for the following rivers in Florida...
St Johns River Near Above Lake Harney affecting Seminole County.
.Heavy rainfall has caused river levels on the St. Johns near Geneva
Above Lake Harney to reach Moderate Flood Stage. River levels are
expected to remain steady into next week.
For the St. Johns River...including Above Lake Harney...Moderate
flooding is forecast.
* WHAT...Moderate flooding is occurring and moderate flooding is
forecast.
* WHERE...St Johns River near Above Lake Harney.
* WHEN...Until further notice.
* IMPACTS...At 9.0 feet, Water enters the first story of homes on
Whitcomb Drive between Crossover Lane and Lake Harney Road. Water
covers Mullet Lake Park.
* ADDITIONAL DETAILS...
- At 8:30 AM EST Saturday the stage was 9.0 feet.
- Bankfull stage is 6.0 feet.
- Recent Activity...The maximum river stage in the 24 hours ending
at 8:30 AM EST Saturday was 9.1 feet.
- Forecast...The river is expected to remain steady above flood
stage at 9.0 feet.
- Flood stage is 8.0 feet.
- http://www.weather.gov/safety/flood
What to do: Motorists should not attempt to drive around barricades or drive cars
through flooded areas.
Caution is urged when walking near riverbanks.
Additional information is available at www.weather.gov.
The next statement will be issued Sunday morning at 1130 AM EST.
Map data: NWS, OpenFreeMap, OpenStreetMap
Recent alerts in Seminole County
Issued
Alert
Area
Nov 14, 9:44 AM EST
Flood Warning
Seminole, FL
Seminole County alert history
Alert events that included Seminole County or its forecast zones, from the NWS warning archive.
31 tornadoes have been recorded in Seminole County since 1950, killing 13 people and injuring 82. That ranks 44 of 67 counties in Florida. The most recent was on March 10, 2025 (rated EF2).