This alert expired on 15 March 2026 at 00:00 UTC. It is kept here as a record.
No stronger detection stands among the 33 recorded within 20 km of this point since 12 March 2026 — 7 others scored the same. Another comparable one was recorded here earlier the same day. 3 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Flood Warning issued March 14 at 12:36PM EDT until March 14 at 8:00PM EDT by NWS Buffalo NY
An estimated 26,780 people live within 50 km of this point.
Nearby, since 12 March 2026
- March 14, 2026 · score 34 · 0.0 km
- March 13, 2026 · score 34 · 0.0 km
- March 12, 2026 · score 34 · 0.0 km
How we know
Confirmed by 7 independent sources, including NOAA.
Our own score for this event is 34 out of 100, at 88 % confidence.
The score is ours, computed from intensity, exposed population and local history — not the source’s.
Event Data
| Type | Severe weather |
| Severity | medium |
| Calamity Score (ours) | 34 / 100 |
| Our confidence | 88% |
| Coordinates | 43.9429, -75.6514 |
| Nearest City | Watertown (21 km) |
| Population Exposed | 26.8K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-03-14T16:36:00.000Z |
| Source | https://api.weather.gov/alerts/urn-oid-2_49_0_1_840_0_cfdf0673fa6962c6b70fbc73c897fda40cac417a_001_1 |
Score Breakdown
Technical Details
| Event | Flood Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Jefferson, NY; Lewis, NY |
| Headline | Flood Warning issued March 14 at 12:36PM EDT until March 14 at 8:00PM EDT by NWS Buffalo NY |
| Expires | 2026-03-14T20:00:00-04:00 |
| SenderName | NWS Buffalo NY |
| HasExactCoords | true |
| Iem TypeSummary | S |
| Iem Magnitude | 5.1 |
| Iem Unit | Inch |
| Iem City | 4 NW Copenhagen |
| Iem County | Jefferson |
| Iem State | NY |
| Iem Wfo | BUF |
| Iem Remark | Cocorahs station NY-JF-59 Copenhagen 3.7 NW. |
| MergedSources | [{"id":"iem_S_43.440_-76.270_1773486000000","source":"iem","severity":"low","severityValue":25,"timestamp":1773486000000,"latitude":43.44,"longitude":-76.27},{"id":"iem_S_43.600_-76.040_1773486000000","source":"iem","severity":"low","severityValue":25,"timestamp":1773486000000,"latitude":43.6,"longitude":-76.04},{"id":"iem_S_43.790_-75.480_1773486000000","source":"iem","severity":"low","severityValue":25,"timestamp":1773486000000,"latitude":43.79,"longitude":-75.48},{"id":"iem_S_43.970_-75.620_1773493260000","source":"iem","severity":"low","severityValue":25,"timestamp":1773493260000,"latitude":43.97,"longitude":-75.62},{"id":"iem_S_43.910_-74.910_1773503700000","source":"iem","severity":"low","severityValue":25,"timestamp":1773503700000,"latitude":43.91,"longitude":-74.91},{"id":"iem_S_43.930_-75.720_1773489600000","source":"iem","severity":"low","severityValue":25,"timestamp":1773489600000,"latitude":43.93,"longitude":-75.72}] |
Safety Information
During flooding: never walk, swim, or drive through floodwaters. Six inches of moving water can knock you down, and one foot of water can sweep away a vehicle. Move to higher ground if waters rise. After flooding, avoid contact with floodwater which may contain sewage, chemicals, or debris. Follow local emergency service guidance.
Series begins 10 February 2026. Comparisons refer to that period only. Collection gap: 14-26 August 2026.
This data is aggregated algorithmically from scientific sources. Not a replacement for official emergency warnings.
Want to know when something happens near Watertown?
Calamity.live data shows a weather event with CalamityScore 34/100, near Watertown (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.