Right now
The most recent data we hold from NOAA arrived 3 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 28 June 2026 at 17:20 UTC. It is kept here as a record.
It is the 2nd strongest of the 36 detections recorded within 20 km of this point since 16 March 2026. Another comparable one was recorded here earlier the same day. 8 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Flash Flood Warning issued June 28 at 12:10PM CDT until June 28 at 12:15PM CDT by NWS Nashville TN
Nearby, since 16 March 2026
- August 6, 2026 · score 16 · 13.1 km
- July 7, 2026 · score 16 · 20.0 km
How we know
17 recorded sources include NOAA; independence is not established by this count.
Our own score for this event is 22 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) | 22 / 100 |
| Legacy data-support index | 0.71/1 |
| Coordinates | 36.4523, -84.5949 |
| Nearest City | Oak Ridge (57 km) |
| Urban exposure index (PEI) | 0 within 50 km |
| Impact Tier | minor |
| Timestamp | 2026-06-28T17:10:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Flash Flood Warning_noaa_urn:oid:2.49.0.1.840.0.208d88a437400160b9d12d91eb340b21 |
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: 2026-06-28T17:10:00.000Z.
First archived: 2026-06-28T17:14:23.817Z. 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 | Fentress, TN; Pickett, TN; Clinton, KY; Cumberland, KY; Metcalfe, KY; Anderson, TN; Campbell, TN; Grainger, TN; Jefferson, TN; Knox, TN; Sevier, TN; Union, TN and 3 more areas |
| Headline | Flash Flood Warning issued June 28 at 12:10PM CDT until June 28 at 12:15PM CDT by NWS Nashville TN |
| Expires | 2026-06-28T12:20:00-05:00 |
| SenderName | NWS Nashville TN |
| HasExactCoords | true |
| MergedCount | 6 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.208d88a437400160b9d12d91eb340b213365e1d9.001.1","noaa_urn:oid:2.49.0.1.840.0.32898295bf8be0a58eac5836e999aadd32ce5f38.001.1","noaa_urn:oid:2.49.0.1.840.0.e679b51c5a5d99b641d91fcc253ebf4a1f4e4e52.001.1","noaa_urn:oid:2.49.0.1.840.0.1cf69703d29c01500fe28fc42c56dfd039e541c2.001.1","noaa_urn:oid:2.49.0.1.840.0.6389faa66b32fa5df181f1f9d8a6907af89cb5ee.001.1","noaa_urn:oid:2.49.0.1.840.0.342e71b008b6a5c1a24f086288730e161ae8395e.001.1"] |
| Iem TypeSummary | F |
| Iem City | Andersonville |
| Iem County | Anderson |
| Iem State | TN |
| Iem Wfo | MRX |
| Iem Remark | Several inches of standing water flooding the front yard in front of a home in Andersonville. Road is not covered by water, but water is near/next to the pictured home. |
| MergedSources | [{"id":"iem_E_36.430_-84.170_1782655200000","source":"iem","severity":"low","severityValue":25,"timestamp":1782655200000,"latitude":36.43,"longitude":-84.17},{"id":"iem_E_36.340_-84.140_1782655200000","source":"iem","severity":"low","severityValue":25,"timestamp":1782655200000,"latitude":36.34,"longitude":-84.14},{"id":"iem_F_36.710_-84.950_1782658440000","source":"iem","severity":"low","severityValue":25,"timestamp":1782658440000,"latitude":36.71,"longitude":-84.95},{"id":"iem_F_36.700_-85.130_1782654960000","source":"iem","severity":"low","severityValue":25,"timestamp":1782654960000,"latitude":36.7,"longitude":-85.13},{"id":"iem_F_36.650_-84.840_1782649320000","source":"iem","severity":"low","severityValue":25,"timestamp":1782649320000,"latitude":36.65,"longitude":-84.84},{"id":"iem_E_36.330_-84.190_1782650580000","source":"iem","severity":"low","severityValue":25,"timestamp":1782650580000,"latitude":36.33,"longitude":-84.19},{"id":"iem_F_36.710_-84.950_1782657000000","source":"iem","severity":"low","severityValue":25,"timestamp":1782657000000,"latitude":36.71,"longitude":-84.95},{"id":"iem_F_36.340_-84.390_1782656700000","source":"iem","severity":"low","severityValue":25,"timestamp":1782656700000,"latitude":36.34,"longitude":-84.39},{"id":"iem_E_36.820_-84.840_1782652140000","source":"iem","severity":"low","severityValue":25,"timestamp":1782652140000,"latitude":36.82,"longitude":-84.84},{"id":"iem_F_36.440_-84.940_1782654900000","source":"iem","severity":"low","severityValue":25,"timestamp":1782654900000,"latitude":36.44,"longitude":-84.94},{"id":"iem_F_36.520_-84.910_1782654660000","source":"iem","severity":"low","severityValue":25,"timestamp":1782654660000,"latitude":36.52,"longitude":-84.91},{"id":"iem_F_36.600_-85.090_1782654240000","source":"iem","severity":"low","severityValue":25,"timestamp":1782654240000,"latitude":36.6,"longitude":-85.09},{"id":"iem_F_35.940_-84.130_1782660600000","source":"iem","severity":"low","severityValue":25,"timestamp":1782660600000,"latitude":35.94,"longitude":-84.13},{"id":"iem_F_36.670_-84.970_1782653820000","source":"iem","severity":"low","severityValue":25,"timestamp":1782653820000,"latitude":36.67,"longitude":-84.97},{"id":"iem_F_36.180_-84.180_1782661440000","source":"iem","severity":"low","severityValue":25,"timestamp":1782661440000,"latitude":36.18,"longitude":-84.18},{"id":"iem_F_36.200_-84.030_1782657000000","source":"iem","severity":"low","severityValue":25,"timestamp":1782657000000,"latitude":36.2,"longitude":-84.03}] |
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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