Calamity
MediumSevere WeatherCalamity Score: 34

Severe Weather in United States

BarbourUnited StatesNOAA

Right now

The most recent data we hold from NOAA arrived 1 minute 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 27 May 2026 at 15:49 UTC. It is kept here as a record.

It is the 6th strongest of the 82 detections recorded within 20 km of this point since 16 March 2026. Another comparable one was recorded here earlier the same day. 11 more were recorded here in the fortnight before it.

What the source measured

NOAA reported: Flash Flood Warning issued May 27 at 11:39AM EDT until May 27 at 11:45AM EDT by NWS Pittsburgh PA

An estimated 34,885 people live within 50 km of this point.

Nearby, since 16 March 2026

How we know

Confirmed by 19 independent sources, including NOAA.

Our own score for this event is 34 out of 100, at 89 % 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)34 / 100
Our confidence89%
Coordinates39.0871, -80.0295
Nearest CityClarksburg (34 km)
Population Exposed34.9K within 50 km
Impact Tiersignificant
Timestamp2026-05-27T15:39:00.000Z
Sourcehttps://api.weather.gov/alerts/merged_Flash Flood Warning_noaa_urn:oid:2.49.0.1.840.0.51b542107061f8dee0ad3e5cbdb22515

Score Breakdown

35
intensity
40
population
0
cascading
80
historical

Technical Details

EventFlash Flood Warning
UrgencyImmediate
CertaintyLikely
AreaDescPreston, WV; Tucker, WV; Barbour, WV; Braxton, WV; Calhoun, WV; Gilmer, WV; Harrison, WV; Lewis, WV; Randolph, WV; Roane, WV; Taylor, WV; Upshur, WV
HeadlineFlash Flood Warning issued May 27 at 11:39AM EDT until May 27 at 11:45AM EDT by NWS Pittsburgh PA
Expires2026-05-27T11:49:00-04:00
SenderNameNWS Pittsburgh PA
HasExactCoordstrue
MergedCount2
MergedIds["noaa_urn:oid:2.49.0.1.840.0.51b542107061f8dee0ad3e5cbdb2251572bb9b70.001.1","noaa_urn:oid:2.49.0.1.840.0.466547fdbd4938c1de50086fa2a0b8ecf1c27cea.001.1"]
Iem TypeSummaryF
Iem City3 ESE Monongah
Iem CountyMarion
Iem StateWV
Iem WfoPBZ
Iem RemarkRoadway flooding along Pleasant Valley Rd. Street is being marked off and closed.
MergedSources[{"id":"iem_F_39.120_-80.040_1779895500000","source":"iem","severity":"low","severityValue":25,"timestamp":1779895500000,"latitude":39.12,"longitude":-80.04},{"id":"iem_F_39.040_-80.650_1779885960000","source":"iem","severity":"low","severityValue":25,"timestamp":1779885960000,"latitude":39.04,"longitude":-80.65},{"id":"iem_F_39.100_-80.470_1779891420000","source":"iem","severity":"low","severityValue":25,"timestamp":1779891420000,"latitude":39.1,"longitude":-80.47},{"id":"iem_F_39.080_-80.470_1779884820000","source":"iem","severity":"low","severityValue":25,"timestamp":1779884820000,"latitude":39.08,"longitude":-80.47},{"id":"iem_F_39.480_-80.120_1779877140000","source":"iem","severity":"low","severityValue":25,"timestamp":1779877140000,"latitude":39.48,"longitude":-80.12},{"id":"iem_F_39.090_-79.730_1779891660000","source":"iem","severity":"low","severityValue":25,"timestamp":1779891660000,"latitude":39.09,"longitude":-79.73},{"id":"iem_E_39.470_-80.090_1779876720000","source":"iem","severity":"low","severityValue":25,"timestamp":1779876720000,"latitude":39.47,"longitude":-80.09},{"id":"iem_F_39.380_-80.280_1779881880000","source":"iem","severity":"low","severityValue":25,"timestamp":1779881880000,"latitude":39.38,"longitude":-80.28},{"id":"iem_F_39.070_-79.960_1779888180000","source":"iem","severity":"low","severityValue":25,"timestamp":1779888180000,"latitude":39.07,"longitude":-79.96},{"id":"iem_F_39.030_-80.780_1779892440000","source":"iem","severity":"low","severityValue":25,"timestamp":1779892440000,"latitude":39.03,"longitude":-80.78},{"id":"iem_F_38.950_-80.830_1779886680000","source":"iem","severity":"low","severityValue":25,"timestamp":1779886680000,"latitude":38.95,"longitude":-80.83},{"id":"iem_x_39.430_-80.150_1779878100000","source":"iem","severity":"low","severityValue":25,"timestamp":1779878100000,"latitude":39.43,"longitude":-80.15},{"id":"iem_F_39.450_-80.130_1779878160000","source":"iem","severity":"low","severityValue":25,"timestamp":1779878160000,"latitude":39.45,"longitude":-80.13},{"id":"iem_F_39.150_-80.050_1779892380000","source":"iem","severity":"low","severityValue":25,"timestamp":1779892380000,"latitude":39.15,"longitude":-80.05},{"id":"iem_F_39.090_-80.100_1779892440000","source":"iem","severity":"low","severityValue":25,"timestamp":1779892440000,"latitude":39.09,"longitude":-80.1},{"id":"iem_F_39.470_-80.090_1779876720000","source":"iem","severity":"low","severityValue":25,"timestamp":1779876720000,"latitude":39.47,"longitude":-80.09},{"id":"iem_F_39.090_-79.790_1779895140000","source":"iem","severity":"low","severityValue":25,"timestamp":1779895140000,"latitude":39.09,"longitude":-79.79},{"id":"iem_F_39.440_-80.170_1779875340000","source":"iem","severity":"low","severityValue":25,"timestamp":1779875340000,"latitude":39.44,"longitude":-80.17}]

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 34/100 (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.