Calamity
MediumSevere WeatherCalamity Score: 16

Severe Weather in United States

HendersonUnited StatesNOAA

This alert expired on 8 August 2026 at 22:00 UTC. It is kept here as a record.

It is the 6th strongest of the 11 detections recorded within 20 km of this point since 16 March 2026. The last comparable one was on 27 July 2026. 2 more were recorded here in the fortnight before it.

What the source measured

NOAA reported: Flash Flood Warning issued August 8 at 2:04PM CDT until August 8 at 5:00PM CDT by NWS Memphis TN

Nearby, since 16 March 2026

How we know

One source: NOAA. Not yet confirmed by a second, independent source.

Our own score for this event is 16 out of 100, at 60 % confidence.

The score is ours, computed from intensity, exposed population and local history — not the source’s.

Computed under scoring rules v1. Rows carrying other versions were judged by different rules and are not directly comparable.

Event Data

TypeSevere Weather
SeverityMedium
Calamity Score (ours)16 / 100
Our confidence60%
Coordinates35.5952, -88.2156
Nearest CityJackson (54 km)
Impact Tierminor
Timestamp2026-08-08T19:04:00.000Z
Sourcehttps://api.weather.gov/alerts/merged_Flash Flood Warning_noaa_urn:oid:2.49.0.1.840.0.923b700abb179484dafba44112d9f79e

Score Breakdown

35
intensity
0
population
0
cascading
18
historical

Technical Details

EventFlash Flood Warning
UrgencyImmediate
CertaintyLikely
AreaDescCrockett, TN; Haywood, TN; Madison, TN; Houston, TN; Stewart, TN; Colbert, AL; Lauderdale, AL
HeadlineFlash Flood Warning issued August 8 at 2:04PM CDT until August 8 at 5:00PM CDT by NWS Memphis TN
Expires2026-08-08T17:00:00-05:00
SenderNameNWS Memphis TN
HasExactCoordstrue
MergedCount3
MergedIds["noaa_urn:oid:2.49.0.1.840.0.923b700abb179484dafba44112d9f79ed41e011f.001.1","noaa_urn:oid:2.49.0.1.840.0.264ec87f0b9f629ddcb45b83f363c50870a4e02a.001.1","noaa_urn:oid:2.49.0.1.840.0.125d86747640332b0090f398ca6a34316b438b24.001.1"]

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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Calamity.live data shows a weather event with CalamityScore 16/100 (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.