Right now
The most recent data we hold from NOAA arrived 50 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 20 September 2026 at 20:15 UTC. It is kept here as a record.
No stronger detection stands among the 27 recorded within 20 km of this point since 12 March 2026 — 22 others scored the same. Another comparable one was recorded here earlier the same day. 39 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Flood Warning issued September 20 at 2:41PM EDT until September 20 at 4:15PM EDT by NWS Pittsburgh PA
Urban PEI: 56,035 within a heuristic 50 km radius; not unique people.
Nearby, since 12 March 2026
- June 28, 2026 · 4.2 km
- July 21, 2026 · 11.0 km
- March 12, 2026 · 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 v5. 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 | 39.4757, -81.7786 |
| Nearest City | Parkersburg (30 km) |
| Urban exposure index (PEI) | 56.0K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-09-20T18:41:00.000Z |
| Source | https://api.weather.gov/alerts/urn%3Aoid%3A2.49.0.1.840.0.e36d3b292ba8f5cd35b643c7864876dddc7acc72.001.1 |
Physical priority index · v5. 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: 2026-09-20T18:41:00.000Z.
First archived: 2026-09-20T18:49:00.854Z. 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 | Flood Warning |
| Urgency | Expected |
| Certainty | Likely |
| AreaDesc | Belmont, OH; Coshocton, OH; Guernsey, OH; Harrison, OH; Jefferson, OH; Tuscarawas, OH; Allegheny, PA; Washington, PA; Ohio, WV; Athens, OH; Gallia, OH; Meigs, OH; Washington, OH; Jackson, WV; Mason, WV; Wood, WV and 3 more areas |
| Headline | Flood Warning issued September 20 at 2:41PM EDT until September 20 at 4:15PM EDT by NWS Pittsburgh PA |
| Expires | 2026-09-20T16:15:00-04:00 |
| SenderName | NWS Pittsburgh PA |
| HasExactCoords | true |
| MergedCount | 6 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.e36d3b292ba8f5cd35b643c7864876dddc7acc72.001.1","noaa_urn:oid:2.49.0.1.840.0.0d99de178621c480383349b9e2ca317d470956d4.001.1","noaa_urn:oid:2.49.0.1.840.0.52d69f107c0aeb34906d5aedfcd571f250c0374b.001.1","noaa_urn:oid:2.49.0.1.840.0.9fc957e46944d1eb3ce8dcf75ae7b76cf00ebf02.001.1","noaa_urn:oid:2.49.0.1.840.0.0e700e20f2019e9cd0689ea4455bb8dcf82e51d7.001.1","noaa_urn:oid:2.49.0.1.840.0.dd4034e1bd64f7bd1995dde00e52b53e1e00daa6.001.1"] |
| Iem TypeSummary | E |
| Iem City | 5 NW Zaleski |
| Iem County | Vinton |
| Iem State | OH |
| Iem Wfo | RLX |
| Iem Remark | High water reported in the 64800 block of Siverly Creek Rd. |
| MergedSources | [{"id":"iem_E_39.330_-82.470_1789908480000","source":"iem","severity":"low","severityValue":25,"timestamp":1789908480000,"latitude":39.33,"longitude":-82.47}] |
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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