Calamity
MediumSevere WeatherCalamity Score: 43

Severe Weather in United States

MasonUnited StatesNOAA

This alert expired on 19 July 2026 at 01:15 UTC. It is kept here as a record.

It is the 4th strongest of the 67 detections recorded within 20 km of this point since 16 March 2026. The last comparable one was on 6 July 2026. 12 more were recorded here in the fortnight before it.

What the source measured

NOAA reported: Flash Flood Warning issued July 18 at 7:37PM EDT until July 18 at 9:15PM EDT by NWS Charleston WV

An estimated 116,584 people live within 50 km of this point.

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 43 out of 100, at 79 % 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)43 / 100
Our confidence79%
Coordinates38.5203, -82.1017
Nearest CityHuntington (32 km)
Population Exposed116.6K within 50 km
Impact Tiersignificant
Timestamp2026-07-18T23:37:00.000Z
Sourcehttps://api.weather.gov/alerts/merged_Flash Flood Warning_noaa_urn:oid:2.49.0.1.840.0.d906be95cf29c0d1b2f9d0369bcb5564

Score Breakdown

35
intensity
70
population
0
cascading
80
historical

Technical Details

EventFlash Flood Warning
UrgencyImmediate
CertaintyLikely
AreaDescCabell, WV; Putnam, WV; Kanawha, WV; Putnam, WV; Roane, WV; Kanawha, WV; Putnam, WV and 1 more areas
HeadlineFlash Flood Warning issued July 18 at 7:37PM EDT until July 18 at 9:15PM EDT by NWS Charleston WV
Expires2026-07-18T21:15:00-04:00
SenderNameNWS Charleston WV
HasExactCoordstrue
MergedCount4
MergedIds["noaa_urn:oid:2.49.0.1.840.0.d906be95cf29c0d1b2f9d0369bcb5564acc07296.001.1","noaa_urn:oid:2.49.0.1.840.0.2d617a6df56972d62f1b880fce734163400c6073.001.1","noaa_urn:oid:2.49.0.1.840.0.946186cf21ea0e042860c28bdd5f8d062daa3a13.001.1","noaa_urn:oid:2.49.0.1.840.0.e6bfea93f5e986a0c95d3b003193dfa48ec519b9.001.1"]

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 43/100 (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.