Right now
The most recent data we hold from NOAA arrived 1 minute 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 06:45 UTC. It is kept here as a record.
It is the 2nd strongest of the 30 detections recorded within 20 km of this point since 14 June 2026. Another comparable one was recorded here earlier the same day. 7 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Flash Flood Warning issued August 1 at 11:40PM EDT until August 2 at 2:45AM EDT by NWS Morristown TN
Urban PEI: 77,751 within a heuristic 50 km radius; not unique people.
Nearby, since 14 June 2026
- July 19, 2026 · score 22 · 12.5 km
- June 23, 2026 · score 22 · 19.1 km
- August 7, 2026 · score 43 · 19.7 km
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 39 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) | 39 / 100 |
| Legacy data-support index | 0.81/1 |
| Coordinates | 34.8902, -84.4603 |
| Nearest City | Dalton (48 km) |
| Urban exposure index (PEI) | 77.8K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-08-02T03:40:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Flash Flood Warning_noaa_urn:oid:2.49.0.1.840.0.1bcff678ef2a4a9147b95bebae75bd8e |
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: 2026-08-02T03:40:00.000Z.
First archived: 2026-08-02T04:00:28.214Z. 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 | Cherokee, NC; Polk, TN; Fannin, GA; Fannin, GA; Lumpkin, GA; Union, GA and 1 more areas |
| Headline | Flash Flood Warning issued August 1 at 11:40PM EDT until August 2 at 2:45AM EDT by NWS Morristown TN |
| Expires | 2026-08-02T02:45:00-04:00 |
| SenderName | NWS Morristown TN |
| HasExactCoords | true |
| MergedCount | 4 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.1bcff678ef2a4a9147b95bebae75bd8ec6fafc23.001.1","noaa_urn:oid:2.49.0.1.840.0.ae678ac27e410385f350af8c46da38882eb52a65.001.1","noaa_urn:oid:2.49.0.1.840.0.3792904afe78a7605b36f396ad04db31a7ec05e2.001.1","noaa_urn:oid:2.49.0.1.840.0.db13ca38f29706c4660d5bfeb8391c1bd1388a11.001.1"] |
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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