Right now
The most recent data we hold from NOAA arrived 2 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 3 August 2026 at 06:45 UTC. It is kept here as a record.
It is the 2nd strongest of the 24 detections recorded within 20 km of this point since 18 June 2026. Another comparable one was recorded here earlier the same day. 2 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Flash Flood Warning issued August 2 at 9:37PM EDT until August 3 at 2:45AM EDT by NWS Greenville-Spartanburg SC
Urban PEI: 17,403 within a heuristic 50 km radius; not unique people.
Nearby, since 18 June 2026
- August 3, 2026 · score 34 · 11.0 km
- August 10, 2026 · score 34 · 16.9 km
- August 3, 2026 · score 34 · 20.1 km
How we know
6 recorded sources include NOAA; independence is not established by this count.
Our own score for this event is 34 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) | 34 / 100 |
| Legacy data-support index | 0.91/1 |
| Coordinates | 37.2588, -80.9855 |
| Nearest City | Radford (39 km) |
| Urban exposure index (PEI) | 17.4K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-08-03T01:37:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Flash Flood Warning_noaa_urn:oid:2.49.0.1.840.0.5a7a2ff784bbc31c72db1c6ecc6119dd |
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: 2026-08-03T01:37:00.000Z.
First archived: 2026-08-03T01:38:35.373Z. 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 | Avery, NC; Caldwell, NC; Buchanan, VA; Ashe, NC; Watauga, NC; Wilkes, NC and 4 more areas |
| Headline | Flash Flood Warning issued August 2 at 9:37PM EDT until August 3 at 2:45AM EDT by NWS Greenville-Spartanburg SC |
| Expires | 2026-08-03T02:45:00-04:00 |
| SenderName | NWS Greenville-Spartanburg SC |
| HasExactCoords | true |
| MergedCount | 7 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.5a7a2ff784bbc31c72db1c6ecc6119ddd115fd01.001.1","noaa_urn:oid:2.49.0.1.840.0.10749846c28b60eefa29a71242ff6ce293985712.001.1","noaa_urn:oid:2.49.0.1.840.0.87e1861990da98e63e2e4f54922a35d6fecc52ba.001.1","noaa_urn:oid:2.49.0.1.840.0.36ae44c64746ff7d7400c94d89efa11098c01d0a.001.1","noaa_urn:oid:2.49.0.1.840.0.d6b11c8b29eeb2bf5c968fb246f040eb90009032.001.1","noaa_urn:oid:2.49.0.1.840.0.dd10a38c53f0b1a6835680d23a31ad1cef8046fb.001.1","noaa_urn:oid:2.49.0.1.840.0.4df9be98015a3dc00ccebcf5687da1d80851aea9.001.1"] |
| Iem TypeSummary | F |
| Iem City | 7 WNW Meadow Bridge |
| Iem County | Fayette |
| Iem State | WV |
| Iem Wfo | RLX |
| Iem Remark | High water on WV-41. |
| MergedSources | [{"id":"iem_F_37.920_-80.900_1785717000000","source":"iem","severity":"low","severityValue":25,"timestamp":1785717000000,"latitude":37.92,"longitude":-80.9},{"id":"iem_F_37.910_-80.870_1785716700000","source":"iem","severity":"low","severityValue":25,"timestamp":1785716700000,"latitude":37.91,"longitude":-80.87},{"id":"iem_F_37.740_-81.120_1785716880000","source":"iem","severity":"low","severityValue":25,"timestamp":1785716880000,"latitude":37.74,"longitude":-81.12},{"id":"iem_F_37.740_-81.110_1785716760000","source":"iem","severity":"low","severityValue":25,"timestamp":1785716760000,"latitude":37.74,"longitude":-81.11},{"id":"iem_F_37.900_-80.970_1785718500000","source":"iem","severity":"low","severityValue":25,"timestamp":1785718500000,"latitude":37.9,"longitude":-80.97}] |
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.
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