This alert expired on 26 May 2026 at 02:18 UTC. It is kept here as a record.
No stronger detection stands among the 22 recorded within 20 km of this point since 16 March 2026 — 8 others scored the same. The last comparable one was on 16 March 2026.
What the source measured
NOAA reported: Flash Flood Warning issued May 25 at 9:08PM CDT until May 25 at 9:15PM CDT by NWS Huntsville AL
Nearby, since 16 March 2026
- May 26, 2026 · score 22 · 19.2 km
How we know
Confirmed by 2 independent sources, including NOAA.
Our own score for this event is 22 out of 100, at 65 % confidence.
The score is ours, computed from intensity, exposed population and local history — not the source’s.
Event Data
| Type | Severe weather |
| Severity | medium |
| Calamity Score (ours) | 22 / 100 |
| Our confidence | 65% |
| Coordinates | 35.2662, -83.3391 |
| Nearest City | Sevierville (70 km) |
| Impact Tier | minor |
| Timestamp | 2026-05-26T02:08:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Flash Flood Warning_noaa_urn:oid:2.49.0.1.840.0.c8e0e27aae9ab1d6c1b8ce3a775681ca |
Score Breakdown
Technical Details
| Event | Flash Flood Warning |
| Urgency | Immediate |
| Certainty | Likely |
| AreaDesc | Jackson, AL; Towns, GA; Henderson, NC and 4 more areas |
| Headline | Flash Flood Warning issued May 25 at 9:08PM CDT until May 25 at 9:15PM CDT by NWS Huntsville AL |
| Expires | 2026-05-25T21:18:00-05:00 |
| SenderName | NWS Huntsville AL |
| HasExactCoords | true |
| MergedCount | 7 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.c8e0e27aae9ab1d6c1b8ce3a775681caf4709d72.001.1","noaa_urn:oid:2.49.0.1.840.0.19c22dc918219eeb182a6f5ac03415167e748d41.001.1","noaa_urn:oid:2.49.0.1.840.0.54909a2b6e1e49d2b8ab81b744c5829cc84a1b1b.001.1","noaa_urn:oid:2.49.0.1.840.0.8ac0c3b64f4ff69b192453221c156747418bfae7.001.1","noaa_urn:oid:2.49.0.1.840.0.496d24c5934788f34316f4a4aff3e033804132a9.001.1","noaa_urn:oid:2.49.0.1.840.0.d518fb17c9983f4b3e93579736a1ca5eeaa7ea6b.001.1","noaa_urn:oid:2.49.0.1.840.0.824898d4b4be2764c533ceab598076b1222c957a.001.1"] |
| Iem TypeSummary | F |
| Iem City | 2 SE Pigeon Forge |
| Iem County | Sevier |
| Iem State | TN |
| Iem Wfo | MRX |
| Iem Remark | Mud slide reported near the Spur. Several roadways with flooding issues. |
| MergedSources | [{"id":"iem_F_35.770_-83.530_1779757740000","source":"iem","severity":"low","severityValue":25,"timestamp":1779757740000,"latitude":35.77,"longitude":-83.53}] |
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 10 February 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.
Want to know when something happens near Sevierville?
Calamity.live data shows a weather event with CalamityScore 22/100 (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 188 scientific monitoring sources.