This alert expired on 6 July 2026 at 10:30 UTC. It is kept here as a record.
It is the 4th strongest of the 28 detections recorded within 20 km of this point since 27 March 2026. Another comparable one was recorded here earlier the same day. 6 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Flood Warning issued July 6 at 12:40AM EDT until July 6 at 6:30AM EDT by NWS Cleveland OH
An estimated 478,386 people live within 50 km of this point.
Nearby, since 27 March 2026
- March 31, 2026 · score 43 · 6.5 km
- July 4, 2026 · score 43 · 12.0 km
- July 4, 2026 · score 48 · 17.1 km
How we know
Confirmed by 5 independent sources, including NOAA.
Our own score for this event is 43 out of 100, at 91 % 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) | 43 / 100 |
| Our confidence | 91% |
| Coordinates | 41.2411, -82.4233 |
| Nearest City | Norwalk (16 km) |
| Population Exposed | 478.4K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-07-06T04:40:00.000Z |
| Source | https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.40bcd1c591a9d12fecff35e07ff81bedd844e33c.001.1 |
Score Breakdown
Technical Details
| Event | Flood Warning |
| Urgency | Expected |
| Certainty | Likely |
| AreaDesc | Erie, OH; Huron, OH |
| Headline | Flood Warning issued July 6 at 12:40AM EDT until July 6 at 6:30AM EDT by NWS Cleveland OH |
| Expires | 2026-07-06T06:30:00-04:00 |
| SenderName | NWS Cleveland OH |
| HasExactCoords | true |
| Iem TypeSummary | F |
| Iem City | Kelley's Island |
| Iem County | Erie |
| Iem State | OH |
| Iem Wfo | CLE |
| Iem Remark | Multiple vides on social media showing significant flash flooding coming into homes and vacation rentals on Kelleys Island. Some videos show several feet high of water entering homes. Time was estimat |
| MergedSources | [{"id":"iem_F_41.330_-82.630_1783303920000","source":"iem","severity":"low","severityValue":25,"timestamp":1783303920000,"latitude":41.33,"longitude":-82.63},{"id":"iem_F_41.600_-82.710_1783318200000","source":"iem","severity":"low","severityValue":25,"timestamp":1783318200000,"latitude":41.6,"longitude":-82.71},{"id":"iem_F_41.590_-82.690_1783323360000","source":"iem","severity":"low","severityValue":25,"timestamp":1783323360000,"latitude":41.59,"longitude":-82.69},{"id":"iem_F_41.590_-82.690_1783317600000","source":"iem","severity":"low","severityValue":25,"timestamp":1783317600000,"latitude":41.59,"longitude":-82.69}] |
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.
Calamity.live data shows a weather event with CalamityScore 43/100, near Norwalk (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 188 scientific monitoring sources.