Right now
The most recent data we hold from NOAA arrived 10 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 2 August 2026 at 22:45 UTC. It is kept here as a record.
It is the 35th strongest of the 99 detections recorded within 20 km of this point since 16 March 2026. Another comparable one was recorded here earlier the same day. 5 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Special Marine Warning issued August 2 at 5:16PM EDT until August 2 at 6:45PM EDT by NWS Cleveland OH
Urban PEI: 99,475 within a heuristic 50 km radius; not unique people.
Nearby, since 16 March 2026
- June 14, 2026 · score 39 · 2.6 km
- May 9, 2026 · score 39 · 11.3 km
How we know
2 recorded sources include NOAA; independence is not established by this count.
Our own score for this event is 32 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) | 32 / 100 |
| Legacy data-support index | 0.86/1 |
| Coordinates | 42.2375, -80.1408 |
| Nearest City | Erie (13 km) |
| Urban exposure index (PEI) | 99.5K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-08-02T21:16:00.000Z |
| Source | https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.24d1eeddfe4540739afade4440d49244a1d70e9c.002.1 |
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: 2026-08-02T21:16:00.000Z.
First archived: 2026-08-02T21:58:44.567Z. 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 | Special Marine Warning |
| Urgency | Immediate |
| Certainty | Likely |
| AreaDesc | Conneaut OH to Ripley NY; Conneaut OH to Ripley NY beyond 5 nm off shoreline to US-Canadian border |
| Headline | Special Marine Warning issued August 2 at 5:16PM EDT until August 2 at 6:45PM EDT by NWS Cleveland OH |
| Expires | 2026-08-02T18:45:00-04:00 |
| SenderName | NWS Cleveland OH |
| HasExactCoords | true |
| Iem TypeSummary | W |
| Iem City | 2 NNW Ashtabula |
| Iem County | LEZ148 |
| Iem State | OH |
| Iem Wfo | CLE |
| Iem Remark | Observed waterspout with a picture shared on social media off of Walnut Beach Park. |
| MergedSources | [{"id":"iem_W_41.900_-80.810_1785702000000","source":"iem","severity":"low","severityValue":25,"timestamp":1785702000000,"latitude":41.9,"longitude":-80.81}] |
Safety Information
Always follow official guidance from your local emergency management agency. This platform provides scientific monitoring data and is not a substitute for official warnings. If you are in immediate danger, contact your local emergency number.
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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