Right now
The most recent data we hold from NOAA arrived 3 minutes ago, and this point is not in it. We record detections, not passes: an absence is not proof that nothing is there.
Nothing else has been detected within 20 km in the last 24 hours.
This alert expired on 6 July 2026 at 04:45 UTC. It is kept here as a record.
It is the 3rd strongest of the 53 detections recorded within 20 km of this point since 27 March 2026. The last comparable one was on 4 July 2026. 6 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Flash Flood Warning issued July 5 at 9:35PM EDT until July 6 at 12:45AM EDT by NWS Cleveland OH
Urban PEI: 273,982 within a heuristic 50 km radius; not unique people.
Nearby, since 27 March 2026
- March 31, 2026 · score 43 · 3.0 km
- July 6, 2026 · score 43 · 6.8 km
- June 14, 2026 · score 43 · 15.3 km
How we know
2 recorded sources include NOAA; independence is not established by this count.
Our own score for this event is 43 out of 100.
This is our versioned heuristic index, not source severity or a calibrated probability. Urban PEI does not count unique people.
Computed under scoring rules v1. Rows carrying other versions were judged by different rules and are not directly comparable.
Event Data
| Type | Severe Weather |
| Severity | Medium |
| Calamity Score (ours) | 43 / 100 |
| Legacy data-support index | 0.85/1 |
| Coordinates | 41.2760, -82.4900 |
| Nearest City | Norwalk (12 km) |
| Urban exposure index (PEI) | 274.0K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-07-06T01:35:00.000Z |
| Source | https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.0f304bd255175204e171d469db6a8ce3105e1867.001.1 |
Physical priority index · v1. Heuristic priority, not calibrated probability, predictive accuracy or damage. The legacy data-support index combines assigned source support and field availability. Urban PEI is distance-weighted and does not count unique people; zero does not establish that nobody is present. Model cards.
Source and revision timeline
Source: noaa. Occurrence: 2026-07-06T01:35:00.000Z.
First archived: 2026-07-06T04:40:04.406Z. Material modification: not recorded.
Retained revisions are prospective; earlier versions may be unavailable. No revision entry does not prove that a record never changed.
Score Breakdown
Technical Details
| Event | Flash Flood Warning |
| Urgency | Immediate |
| Certainty | Likely |
| AreaDesc | Erie, OH; Huron, OH |
| Headline | Flash Flood Warning issued July 5 at 9:35PM EDT until July 6 at 12:45AM EDT by NWS Cleveland OH |
| Expires | 2026-07-06T00:45:00-04:00 |
| SenderName | NWS Cleveland OH |
| HasExactCoords | true |
| Iem TypeSummary | F |
| Iem City | 3 NNW Milan |
| Iem County | Erie |
| Iem State | OH |
| Iem Wfo | CLE |
| Iem Remark | Active water rescue; water up to the door of car. |
| MergedSources | [{"id":"iem_F_41.330_-82.630_1783303920000","source":"iem","severity":"low","severityValue":25,"timestamp":1783303920000,"latitude":41.33,"longitude":-82.63}] |
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.
Review the area, threshold and delivery channel in your account.
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