Calamity
MediumSevere WeatherCalamity Score: 32

Severe Weather in United States

RaleighUnited StatesNOAA

Right now

The most recent data we hold from NOAA arrived 4 minutes ago, and this point is not in it. We record detections, not passes: an absence is not proof that nothing is there.

3 other detections within 20 km in the last 24 hours, the nearest 1 km from here.

This alert expired on 13 September 2026 at 04:30 UTC. It is kept here as a record.

It is the 33rd strongest of the 64 detections recorded within 20 km of this point since 16 March 2026. Another comparable one was recorded here earlier the same day. 2 more were recorded here in the fortnight before it.

What the source measured

NOAA reported: Flash Flood Warning issued September 12 at 10:24PM EDT until September 13 at 12:30AM EDT by NWS Charleston WV

An estimated 63,894 people live within 50 km of this point.

Nearby, since 16 March 2026

How we know

Confirmed by 2 independent sources, including NOAA.

Our own score for this event is 32 out of 100, at 86 % confidence.

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

Computed under scoring rules v4. Rows carrying other versions were judged by different rules and are not directly comparable.

Event Data

TypeSevere Weather
SeverityMedium
Calamity Score (ours)32 / 100
Our confidence86%
Coordinates37.9225, -81.5559
Nearest CityBeckley (36 km)
Population Exposed63.9K within 50 km
Impact Tiersignificant
Timestamp2026-09-13T02:24:00.000Z
Sourcehttps://api.weather.gov/alerts/urn%3Aoid%3A2.49.0.1.840.0.17dcb0d0ebfdb0b1e7f521ccf7e95d42e0f328aa.002.1

Score Breakdown

35
intensity
55
population
0
cascading
18
historical

Technical Details

EventFlash Flood Warning
UrgencyImmediate
CertaintyLikely
AreaDescBuchanan, VA; Braxton, WV; Calhoun, WV; Clay, WV; Gilmer, WV; Lewis, WV; Roane, WV; Clay, WV; Kanawha, WV and 2 more areas
HeadlineFlash Flood Warning issued September 12 at 10:24PM EDT until September 13 at 12:30AM EDT by NWS Charleston WV
Expires2026-09-13T00:30:00-04:00
SenderNameNWS Charleston WV
HasExactCoordstrue
MergedCount5
MergedIds["noaa_urn:oid:2.49.0.1.840.0.17dcb0d0ebfdb0b1e7f521ccf7e95d42e0f328aa.002.1","noaa_urn:oid:2.49.0.1.840.0.6f462de86e7745b1fcc8fe84f6c060b8c043931d.001.1","noaa_urn:oid:2.49.0.1.840.0.89dd78c5ce91c45faf6ff23ddda0beed7ba8520d.001.1","noaa_urn:oid:2.49.0.1.840.0.3e86488c8339aaa876b5201340351935c1d1e3f2.001.1","noaa_urn:oid:2.49.0.1.840.0.ce59729ae001218f9e233149799c7c1d6ad92a35.001.1"]
Iem TypeSummaryF
Iem City7 SE Clendenin
Iem CountyClay
Iem StateWV
Iem WfoRLX
Iem RemarkWater over Falling Rock Rd. Video provided.
MergedSources[{"id":"iem_F_38.460_-81.240_1789249200000","source":"iem","severity":"low","severityValue":25,"timestamp":1789249200000,"latitude":38.46,"longitude":-81.24},{"id":"iem_F_38.450_-81.230_1789248600000","source":"iem","severity":"low","severityValue":25,"timestamp":1789248600000,"latitude":38.45,"longitude":-81.23},{"id":"iem_F_38.410_-81.260_1789249500000","source":"iem","severity":"low","severityValue":25,"timestamp":1789249500000,"latitude":38.41,"longitude":-81.26}]

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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