Saint Johns County, Florida weather alerts
No watches, warnings or advisories are in force for Saint Johns County.
Checked Sun, Sep 20, 2026, 9:28 AM EDT. Times are Eastern Daylight Time.
Radar
Reflectivity now over Saint Johns County, Florida. Open it to see warnings and watches on the map.























Radar mosaic and map layers from NOAA MRMS. Boundaries from the Iowa Environmental Mesonet.
Alerts in force
Nothing is in force for Saint Johns County right now. Its warnings come from the National Weather Service and appear here within a minute of being issued; every one of the past year is below.
The past year in Saint Johns County
In the past year the National Weather Service issued 229 alerts for Saint Johns County, including 49 severe thunderstorm warnings, 12 freeze warnings, 5 red flag warnings and 2 coastal flood warnings.
| Product | Issued | Most recent |
|---|---|---|
| Severe Thunderstorm Warning | 49 | Sep 11, 2026 |
| Freeze Warning | 12 | Feb 24, 2026 |
| Red Flag Warning | 5 | May 7, 2026 |
| Coastal Flood Warning | 2 | Oct 10, 2025 |
| Extreme Heat Warning | 2 | Aug 18, 2026 |
| Extreme Cold Warning | 1 | Jan 31, 2026 |
| Freeze Watch | 8 | Feb 24, 2026 |
| Tornado Watch | 3 | May 2, 2026 |
| Coastal Flood Watch | 2 | Oct 10, 2025 |
| Fire Weather Watch | 2 | May 7, 2026 |
| Extreme Cold Watch | 1 | Jan 31, 2026 |
| Extreme Heat Watch | 1 | Jul 29, 2026 |
| Severe Thunderstorm Watch | 1 | Jul 29, 2026 |
| Flood Advisory | 31 | Sep 10, 2026 |
| Heat Advisory | 22 | Aug 21, 2026 |
| Dense Fog Advisory | 13 | Mar 22, 2026 |
| Cold Weather Advisory | 10 | Feb 24, 2026 |
| High Surf Advisory | 7 | Jun 2, 2026 |
| Wind Advisory | 6 | Apr 7, 2026 |
| Coastal Flood Advisory | 5 | Apr 9, 2026 |
| Frost Advisory | 5 | Feb 25, 2026 |
| Rip Currents Statement | 41 | Sep 15, 2026 |
Warnings issued
- Severe Thunderstorm Warning
- Severe Thunderstorm Warning
- Severe Thunderstorm Warning
- Severe Thunderstorm Warning
- Severe Thunderstorm Warning
- Severe Thunderstorm Warning
- Severe Thunderstorm Warning
- Severe Thunderstorm Warning
- Severe Thunderstorm Warning
- Severe Thunderstorm Warning
- Severe Thunderstorm Warning
- Extreme Heat Warning
- Severe Thunderstorm Warning
- Severe Thunderstorm Warning
- Severe Thunderstorm Warning
- Severe Thunderstorm Warning
- Severe Thunderstorm Warning
- Severe Thunderstorm Warning
- Severe Thunderstorm Warning
- Extreme Heat Warning
- Severe Thunderstorm Warning
- Severe Thunderstorm Warning
- Severe Thunderstorm Warning
- Severe Thunderstorm Warning
- Severe Thunderstorm Warning
- Severe Thunderstorm Warning
- Severe Thunderstorm Warning
- Severe Thunderstorm Warning
- Severe Thunderstorm Warning
- Severe Thunderstorm Warning
- Severe Thunderstorm Warning
- Severe Thunderstorm Warning
- Severe Thunderstorm Warning
- Severe Thunderstorm Warning
- Severe Thunderstorm Warning
- Severe Thunderstorm Warning
- Severe Thunderstorm Warning
- Severe Thunderstorm Warning
- Severe Thunderstorm Warning
- Severe Thunderstorm Warning
- Severe Thunderstorm Warning
- Severe Thunderstorm Warning
- Severe Thunderstorm Warning
- Severe Thunderstorm Warning
- Severe Thunderstorm Warning
- Severe Thunderstorm Warning
- Red Flag Warning
- Red Flag Warning
- Severe Thunderstorm Warning
- Severe Thunderstorm Warning
- Severe Thunderstorm Warning
- Severe Thunderstorm Warning
- Severe Thunderstorm Warning
- Freeze Warning
- Red Flag Warning
- Red Flag Warning
- Red Flag Warning
- Freeze Warning
- Freeze Warning
- Extreme Cold Warning
And 11 earlier warnings.
Every alert, most recent first
- Rip Currents Statement
- Severe Thunderstorm Warning
- Flood Advisory
- Rip Currents Statement
- Severe Thunderstorm Warning
- Flood Advisory
- Severe Thunderstorm Warning
- Flood Advisory
- Severe Thunderstorm Warning
- Flood Advisory
- Rip Currents Statement
- Flood Advisory
- Flood Advisory
- Flood Advisory
- Flood Advisory
- Heat Advisory
- Flood Advisory
- Flood Advisory
- Severe Thunderstorm Warning
- Flood Advisory
- Severe Thunderstorm Warning
- Severe Thunderstorm Warning
- Heat Advisory
- Flood Advisory
- Severe Thunderstorm Warning
- Heat Advisory
- Severe Thunderstorm Warning
- Flood Advisory
- Severe Thunderstorm Warning
- Severe Thunderstorm Warning
- Extreme Heat Warning
- Heat Advisory
- Heat Advisory
- Heat Advisory
- Flood Advisory
- Severe Thunderstorm Warning
- Heat Advisory
- Severe Thunderstorm Warning
- Heat Advisory
- Flood Advisory
The 40 most recent of 229.
From the Iowa Environmental Mesonet’s archive of NWS watches, warnings and advisories (VTEC), by the county’s own code and the forecast zones inside it. Each date links to the event at the IEM.
Nearby
The counties around Saint Johns County, with what is in force in each.
What this means
- Warning
- The hazard is happening or about to. Act now: a tornado warning means take shelter, a flash flood warning means move to higher ground.
- Watch
- Conditions favor the hazard. Nothing is happening yet; have a plan and be ready to act if a warning follows.
- Advisory
- A hazard that is less serious than a warning but can still cause trouble, such as dense fog, heat or light ice.
- Statement
- Information about weather that does not yet meet a warning: a strong storm, a hydrologic update, or a special weather statement.
Severity (extreme, severe, moderate, minor) is the rating the issuing office gives each product. More on the difference: tornado watch vs. tornado warning. Alerts come from the National Weather Service; follow its instructions and your local officials.
Sources
Alerts from the National Weather Service's public feed, read afresh every minute, and matched to counties and zones by their UGC codes. Warnings from outside the United States come from each country's own meteorological service. Follow the issuing office's instructions and your local officials.