This alert is in force until 4 September 2026, 06:15 UTC.
It is the 4th strongest of the 46 detections recorded within 20 km of this point since 17 March 2026. Another comparable one was recorded here earlier the same day.
What the source measured
NOAA reported: Flash Flood Warning issued September 3 at 10:13PM EDT until September 4 at 2:15AM EDT by NWS Buffalo NY
An estimated 706,472 people live within 50 km of this point.
Nearby, since 17 March 2026
- September 4, 2026 · score 41 · 0.0 km
- September 2, 2026 · score 54 · 11.3 km
- September 3, 2026 · score 54 · 13.6 km
How we know
Confirmed by 2 independent sources, including NOAA.
Our own score for this event is 41 out of 100, at 86 % confidence.
The score is ours, computed from intensity, exposed population and local history — not the source’s.
Computed under scoring rules v4. Rows carrying other versions were judged by different rules and are not directly comparable.
Event Data
| Type | Severe Weather |
| Severity | Medium |
| Calamity Score (ours) | 41 / 100 |
| Our confidence | 86% |
| Coordinates | 42.8100, -78.4415 |
| Nearest City | Depew (23 km) |
| Population Exposed | 706.5K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-09-04T02:13:00.000Z |
| Source | https://api.weather.gov/alerts/urn%3Aoid%3A2.49.0.1.840.0.0180cda887b03c4dc19631582780aea2297698b1.001.1 |
Score Breakdown
Technical Details
| Event | Flash Flood Warning |
| Urgency | Immediate |
| Certainty | Likely |
| AreaDesc | Erie, NY; Livingston, NY; Wyoming, NY; Erie, NY; Erie, NY; Wyoming, NY |
| Headline | Flash Flood Warning issued September 3 at 10:13PM EDT until September 4 at 2:15AM EDT by NWS Buffalo NY |
| Expires | 2026-09-04T02:15:00-04:00 |
| SenderName | NWS Buffalo NY |
| HasExactCoords | true |
| MergedCount | 3 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.0180cda887b03c4dc19631582780aea2297698b1.001.1","noaa_urn:oid:2.49.0.1.840.0.1567c9e14508729b122d0d7591fac6f155e606fc.001.1","noaa_urn:oid:2.49.0.1.840.0.afad5261ed8c52c61c20501ed432fc66064d8d4c.001.1"] |
| Iem TypeSummary | F |
| Iem City | Kenmore |
| Iem County | Erie |
| Iem State | NY |
| Iem Wfo | BUF |
| Iem Remark | 2.26 inches of rain in an hour from 6:45 to 7:45. Water over the curb on Wardman Road. |
| MergedSources | [{"id":"iem_F_42.940_-78.860_1788479400000","source":"iem","severity":"low","severityValue":25,"timestamp":1788479400000,"latitude":42.94,"longitude":-78.86},{"id":"iem_F_42.940_-78.870_1788479100000","source":"iem","severity":"low","severityValue":25,"timestamp":1788479100000,"latitude":42.94,"longitude":-78.87},{"id":"iem_F_42.990_-78.910_1788479640000","source":"iem","severity":"low","severityValue":25,"timestamp":1788479640000,"latitude":42.99,"longitude":-78.91},{"id":"iem_F_42.930_-78.700_1788479220000","source":"iem","severity":"low","severityValue":25,"timestamp":1788479220000,"latitude":42.93,"longitude":-78.7},{"id":"iem_F_42.940_-78.850_1788479400000","source":"iem","severity":"low","severityValue":25,"timestamp":1788479400000,"latitude":42.94,"longitude":-78.85},{"id":"iem_R_42.970_-78.880_1788483600000","source":"iem","severity":"low","severityValue":25,"timestamp":1788483600000,"latitude":42.97,"longitude":-78.88},{"id":"iem_F_42.960_-78.870_1788479100000","source":"iem","severity":"low","severityValue":25,"timestamp":1788479100000,"latitude":42.96,"longitude":-78.87}] |
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 8 March 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 Depew?
Calamity.live data shows a weather event with CalamityScore 41/100, near Depew (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.