Calamity
MediumSevere WeatherCalamity Score: 43

Severe Weather near Johnson City

CarterUnited StatesNOAA

Right now

The most recent data we hold from NOAA arrived 2 minutes ago, and this point is not in it. We record detections, not passes: an absence is not proof that nothing is there.

9 other detections within 20 km in the last 24 hours, the nearest 14 km from here.

This alert expired on 12 August 2026 at 00:01 UTC. It is kept here as a record.

No stronger detection stands among the 35 recorded within 20 km of this point since 17 March 2026 — 12 others scored the same. Another comparable one was recorded here earlier the same day. 7 more were recorded here in the fortnight before it.

What the source measured

NOAA reported: Severe Thunderstorm Warning issued August 11 at 7:51PM EDT until August 11 at 8:00PM EDT by NWS Charleston WV

An estimated 162,848 people live within 50 km of this point.

Nearby, since 17 March 2026

How we know

Confirmed by 15 independent sources, including NOAA.

Our own score for this event is 43 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)43 / 100
Our confidence89%
Coordinates36.3081, -82.2696
Nearest CityJohnson City (7 km)
Population Exposed162.8K within 50 km
Impact Tiersignificant
Timestamp2026-08-11T23:51:00.000Z
Sourcehttps://api.weather.gov/alerts/merged_Severe Thunderstorm Warning_noaa_urn:oid:2.49.0.1.840.0.6cc53dcd9ac4502ade3ef2ad8ad3d858

Score Breakdown

35
intensity
70
population
0
cascading
80
historical

Technical Details

EventSevere Thunderstorm Warning
UrgencyImmediate
CertaintyObserved
AreaDescBuchanan, VA; McDowell, WV; Carter, TN; Johnson, TN; Sullivan, TN; Scott, VA; Washington, VA; City of Bristol, VA; Alleghany, VA; Craig, VA; City of Covington, VA; Greenbrier, WV; Monroe, WV; Summers, WV and 10 more areas
HeadlineSevere Thunderstorm Warning issued August 11 at 7:51PM EDT until August 11 at 8:00PM EDT by NWS Charleston WV
Expires2026-08-11T20:01:00-04:00
SenderNameNWS Charleston WV
HasExactCoordstrue
MergedCount13
MergedIds["noaa_urn:oid:2.49.0.1.840.0.6cc53dcd9ac4502ade3ef2ad8ad3d858122958c7.001.1","noaa_urn:oid:2.49.0.1.840.0.de3abe71aa5f60839f8fde4626efd3bb2e99ab20.001.1","noaa_urn:oid:2.49.0.1.840.0.1b484f59937a9145d9c96c07690c4d8ee0e440df.001.1","noaa_urn:oid:2.49.0.1.840.0.08bce6232873ddf70d5c758b5871224d4b7eacef.001.1","noaa_urn:oid:2.49.0.1.840.0.4e13d53e85dd5109f2366d9b12fa82fa6a96f1eb.002.1","noaa_urn:oid:2.49.0.1.840.0.a41c3ed2f856769d6a8bd22d6c4e6fc9e55db769.001.1","noaa_urn:oid:2.49.0.1.840.0.8ce4e72f3a0b818f6359bddd4276ddc380a38242.001.1","noaa_urn:oid:2.49.0.1.840.0.ae550dbce9408146a35e4d162e114101e3e1cd92.001.1","noaa_urn:oid:2.49.0.1.840.0.8cb7e4c2c38cc94c9c0d3bcc4fc279f46ab99111.001.1","noaa_urn:oid:2.49.0.1.840.0.5c364d0231dd2b8f00f56cb54014f3cd99a9c85f.001.1","noaa_urn:oid:2.49.0.1.840.0.586185630ab6e559df49e64bd510de11d436956a.002.1","noaa_urn:oid:2.49.0.1.840.0.f0f42e58503f03e0c04db0d50814d4f818f7b277.001.1","noaa_urn:oid:2.49.0.1.840.0.3d2c9bdeb5b56266b3dfc00950bc0f09f6ebe512.001.1"]
Iem TypeSummaryD
Iem City3 ENE Hampton
Iem CountyCarter
Iem StateTN
Iem WfoMRX
Iem RemarkCarter County dispatch reports a few trees down but no significant damage. Time estimated by radar.
MergedSources[{"id":"iem_D_35.730_-81.860_1786478100000","source":"iem","severity":"low","severityValue":25,"timestamp":1786478100000,"latitude":35.73,"longitude":-81.86},{"id":"iem_D_35.700_-82.030_1786480980000","source":"iem","severity":"low","severityValue":25,"timestamp":1786480980000,"latitude":35.7,"longitude":-82.03},{"id":"iem_D_36.480_-82.520_1786476600000","source":"iem","severity":"low","severityValue":25,"timestamp":1786476600000,"latitude":36.48,"longitude":-82.52},{"id":"iem_D_35.680_-81.990_1786481340000","source":"iem","severity":"low","severityValue":25,"timestamp":1786481340000,"latitude":35.68,"longitude":-81.99},{"id":"iem_D_35.740_-81.880_1786478100000","source":"iem","severity":"low","severityValue":25,"timestamp":1786478100000,"latitude":35.74,"longitude":-81.88},{"id":"iem_H_35.680_-82.010_1786481400000","source":"iem","severity":"low","severityValue":25,"timestamp":1786481400000,"latitude":35.68,"longitude":-82.01},{"id":"iem_D_36.490_-82.550_1786476600000","source":"iem","severity":"low","severityValue":25,"timestamp":1786476600000,"latitude":36.49,"longitude":-82.55},{"id":"iem_D_35.970_-81.580_1786473600000","source":"iem","severity":"low","severityValue":25,"timestamp":1786473600000,"latitude":35.97,"longitude":-81.58},{"id":"iem_D_36.640_-81.600_1786475820000","source":"iem","severity":"low","severityValue":25,"timestamp":1786475820000,"latitude":36.64,"longitude":-81.6},{"id":"iem_D_36.770_-81.660_1786473780000","source":"iem","severity":"low","severityValue":25,"timestamp":1786473780000,"latitude":36.77,"longitude":-81.66},{"id":"iem_F_36.520_-82.690_1786482300000","source":"iem","severity":"low","severityValue":25,"timestamp":1786482300000,"latitude":36.52,"longitude":-82.69},{"id":"iem_H_35.970_-81.570_1786473600000","source":"iem","severity":"low","severityValue":25,"timestamp":1786473600000,"latitude":35.97,"longitude":-81.57},{"id":"iem_D_36.790_-81.690_1786473720000","source":"iem","severity":"low","severityValue":25,"timestamp":1786473720000,"latitude":36.79,"longitude":-81.69},{"id":"iem_D_36.290_-82.130_1786479840000","source":"iem","severity":"low","severityValue":25,"timestamp":1786479840000,"latitude":36.29,"longitude":-82.13}]

Safety Information

Always follow official guidance from your local emergency management agency. This platform provides scientific monitoring data and is not a substitute for official warnings. If you are in immediate danger, contact your local emergency number.

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