Sullivan County, New York weather alerts
No watches, warnings or advisories are in force for Sullivan County.
Checked Sun, Sep 20, 2026, 11:33 AM EDT. Times are Eastern Daylight Time.
Warnings on the map
Every watch, warning and advisory the National Weather Service has in force over Sullivan County, New York. Open it for the live map, where it pans and zooms.























Open the live map with warnings and watches
Map layer from NOAA National Weather Service. Boundaries from the Iowa Environmental Mesonet.
Alerts in force
Nothing is in force for Sullivan 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 Sullivan County
In the past year the National Weather Service issued 109 alerts for Sullivan County, including 28 severe thunderstorm warnings, 8 flash flood warnings, 5 tornado warnings and 5 winter storm warnings.
| Product | Issued | Most recent |
|---|---|---|
| Severe Thunderstorm Warning | 28 | Aug 27, 2026 |
| Flash Flood Warning | 8 | Aug 7, 2026 |
| Tornado Warning | 5 | Jul 21, 2026 |
| Winter Storm Warning | 5 | Feb 22, 2026 |
| Flood Warning | 3 | Aug 7, 2026 |
| Freeze Warning | 2 | May 12, 2026 |
| Red Flag Warning | 2 | May 5, 2026 |
| Snow Squall Warning | 2 | Jan 1, 2026 |
| Blizzard Warning | 1 | Feb 22, 2026 |
| Extreme Cold Warning | 1 | Feb 7, 2026 |
| Extreme Heat Warning | 1 | Jul 1, 2026 |
| Severe Thunderstorm Watch | 11 | Sep 1, 2026 |
| Winter Storm Watch | 4 | Feb 22, 2026 |
| Flood Watch | 3 | Sep 2, 2026 |
| Extreme Cold Watch | 1 | Feb 7, 2026 |
| Extreme Heat Watch | 1 | Jul 1, 2026 |
| Freeze Watch | 1 | Oct 9, 2025 |
| High Wind Watch | 1 | Nov 5, 2025 |
| Tornado Watch | 1 | Jul 21, 2026 |
| Winter Weather Advisory | 11 | Mar 5, 2026 |
| Wind Advisory | 6 | Mar 14, 2026 |
| Cold Weather Advisory | 5 | Feb 8, 2026 |
| Dense Fog Advisory | 3 | May 26, 2026 |
| Frost Advisory | 2 | Oct 9, 2025 |
| Heat Advisory | 1 | Jul 14, 2026 |
Warnings issued
- Severe Thunderstorm Warning
- Severe Thunderstorm Warning
- Severe Thunderstorm Warning
- Severe Thunderstorm Warning
- Flood Warning
- Severe Thunderstorm Warning
- Flash Flood Warning
- Flood Warning
- Flash Flood Warning
- Flood Warning
- Flash Flood Warning
- Flash Flood Warning
- Flash Flood Warning
- Severe Thunderstorm Warning
- Severe Thunderstorm Warning
- Flash Flood Warning
- Tornado Warning
- Tornado Warning
- Tornado Warning
- Severe Thunderstorm Warning
- Severe Thunderstorm Warning
- Flash Flood Warning
- Flash Flood 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
- Freeze Warning
- Red Flag Warning
- Severe Thunderstorm Warning
- Severe Thunderstorm Warning
- Severe Thunderstorm Warning
- Severe Thunderstorm Warning
- Red Flag Warning
- Severe Thunderstorm Warning
- Blizzard Warning
- Winter Storm Warning
- Extreme Cold Warning
- Winter Storm Warning
- Snow Squall Warning
- Snow Squall Warning
- Winter Storm Warning
- Winter Storm Warning
- Severe Thunderstorm Warning
- Winter Storm Warning
- Severe Thunderstorm Warning
- Freeze Warning
- Tornado Warning
- Tornado Warning
Every alert, most recent first
- Flood Watch
- Severe Thunderstorm Watch
- Severe Thunderstorm Warning
- Severe Thunderstorm Warning
- Severe Thunderstorm Watch
- Severe Thunderstorm Warning
- Severe Thunderstorm Warning
- Severe Thunderstorm Watch
- Flood Warning
- Severe Thunderstorm Warning
- Flash Flood Warning
- Flood Warning
- Flash Flood Warning
- Flood Warning
- Flash Flood Warning
- Flash Flood Warning
- Flash Flood Warning
- Severe Thunderstorm Warning
- Flood Watch
- Severe Thunderstorm Warning
- Flash Flood Warning
- Tornado Warning
- Tornado Watch
- Tornado Warning
- Tornado Warning
- Severe Thunderstorm Warning
- Severe Thunderstorm Warning
- Severe Thunderstorm Watch
- Heat Advisory
- Flash Flood Warning
- Flash Flood Warning
- Flood Watch
- Severe Thunderstorm Warning
- Severe Thunderstorm Warning
- Severe Thunderstorm Warning
- Severe Thunderstorm Watch
- Severe Thunderstorm Warning
- Severe Thunderstorm Warning
- Severe Thunderstorm Warning
- Severe Thunderstorm Watch
The 40 most recent of 109.
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 Sullivan 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.