San Bernardino County, California weather alerts
No watches, warnings or advisories are in force for San Bernardino County.
Checked Sun, Sep 20, 2026, 7:10 AM PDT. Times are Pacific Daylight Time.
Radar
Reflectivity now over San Bernardino County, California. 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 San Bernardino 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 San Bernardino County
In the past year the National Weather Service issued 263 alerts for San Bernardino County, including 29 flash flood warnings, 23 severe thunderstorm warnings, 14 extreme heat warnings and 4 high wind warnings.
| Product | Issued | Most recent |
|---|---|---|
| Flash Flood Warning | 29 | Sep 16, 2026 |
| Severe Thunderstorm Warning | 23 | Sep 16, 2026 |
| Extreme Heat Warning | 14 | Sep 10, 2026 |
| High Wind Warning | 4 | May 17, 2026 |
| Flood Warning | 3 | Aug 11, 2026 |
| Freeze Warning | 3 | Jan 10, 2026 |
| Red Flag Warning | 3 | Jun 26, 2026 |
| Winter Storm Warning | 2 | Feb 16, 2026 |
| Dust Storm Warning | 1 | May 17, 2026 |
| Flood Watch | 14 | Dec 31, 2025 |
| Extreme Heat Watch | 10 | Aug 25, 2026 |
| High Wind Watch | 5 | May 17, 2026 |
| Winter Storm Watch | 2 | Feb 16, 2026 |
| Fire Weather Watch | 1 | Jun 26, 2026 |
| Flash Flood Watch | 1 | Oct 14, 2025 |
| Flood Advisory | 72 | Sep 8, 2026 |
| Wind Advisory | 54 | Jun 26, 2026 |
| Heat Advisory | 12 | Sep 11, 2026 |
| Lake Wind Advisory | 4 | Jun 26, 2026 |
| Dense Fog Advisory | 3 | Jan 21, 2026 |
| Winter Weather Advisory | 3 | Feb 19, 2026 |
Warnings issued
- Flash Flood Warning
- Severe Thunderstorm Warning
- Extreme Heat Warning
- Extreme Heat Warning
- Extreme Heat Warning
- Extreme Heat Warning
- Extreme Heat Warning
- Extreme Heat Warning
- Severe Thunderstorm Warning
- Flash Flood Warning
- Flash Flood Warning
- Severe Thunderstorm Warning
- Flash Flood Warning
- Severe Thunderstorm Warning
- Severe Thunderstorm Warning
- Flash Flood Warning
- Flash Flood Warning
- Flash Flood Warning
- Severe Thunderstorm Warning
- Severe Thunderstorm Warning
- Flash Flood Warning
- Severe Thunderstorm Warning
- Flash Flood Warning
- Flood Warning
- Severe Thunderstorm Warning
- Flash Flood Warning
- Flash Flood Warning
- Severe Thunderstorm Warning
- Severe Thunderstorm Warning
- Severe Thunderstorm Warning
- Flash Flood Warning
- Severe Thunderstorm Warning
- Severe Thunderstorm Warning
- Flash Flood Warning
- Severe Thunderstorm Warning
- Severe Thunderstorm Warning
- Extreme Heat Warning
- Extreme Heat Warning
- Extreme Heat Warning
- Extreme Heat Warning
- Extreme Heat Warning
- Flood Warning
- Severe Thunderstorm Warning
- Flash Flood Warning
- Severe Thunderstorm Warning
- Extreme Heat Warning
- Red Flag Warning
- Red Flag Warning
- Red Flag Warning
- Dust Storm Warning
- High Wind Warning
- Extreme Heat Warning
- Extreme Heat Warning
- Severe Thunderstorm Warning
- Severe Thunderstorm Warning
- Winter Storm Warning
- High Wind Warning
- Freeze Warning
- Freeze Warning
- Freeze Warning
And 22 earlier warnings.
Every alert, most recent first
- Flash Flood Warning
- Severe Thunderstorm Warning
- Heat Advisory
- Extreme Heat Warning
- Heat Advisory
- Flood Advisory
- Flood Advisory
- Extreme Heat Warning
- Flood Advisory
- Extreme Heat Watch
- Extreme Heat Warning
- Extreme Heat Warning
- Flood Advisory
- Extreme Heat Warning
- Heat Advisory
- Flood Advisory
- Heat Advisory
- Extreme Heat Warning
- Extreme Heat Watch
- Flood Advisory
- Severe Thunderstorm Warning
- Flash Flood Warning
- Flood Advisory
- Flash Flood Warning
- Flood Advisory
- Severe Thunderstorm Warning
- Flood Advisory
- Flood Advisory
- Flash Flood Warning
- Severe Thunderstorm Warning
- Severe Thunderstorm Warning
- Flash Flood Warning
- Flash Flood Warning
- Flood Advisory
- Flash Flood Warning
- Severe Thunderstorm Warning
- Flood Advisory
- Severe Thunderstorm Warning
- Flood Advisory
- Flash Flood Warning
The 40 most recent of 263.
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 San Bernardino 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.