Calamity
MediumSevere WeatherCalamity Score: 43

Severe Weather near Marshall

HarrisonUnited StatesNOAA

Right now

The most recent data we hold from NOAA arrived 41 minutes 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 9 May 2026 at 06:05 UTC. It is kept here as a record.

No stronger detection stands among the 89 recorded within 20 km of this point since 15 March 2026 — 73 others scored the same. Another comparable one was recorded here earlier the same day. 4 more were recorded here in the fortnight before it.

What the source measured

NOAA reported: Severe Thunderstorm Warning issued May 9 at 12:55AM CDT until May 9 at 1:00AM CDT by NWS Shreveport LA

An estimated 279,507 people live within 50 km of this point.

Nearby, since 15 March 2026

How we know

Confirmed by 2 independent sources, including NOAA.

Our own score for this event is 43 out of 100, at 85 % 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 confidence85%
Coordinates32.6547, -94.1510
Nearest CityMarshall (24 km)
Population Exposed279.5K within 50 km
Impact Tiersignificant
Timestamp2026-05-09T05:55:00.000Z
Sourcehttps://api.weather.gov/alerts/merged_Severe Thunderstorm Warning_noaa_urn:oid:2.49.0.1.840.0.a53bae6efa6469f35f2707a86b0fc0a6

Score Breakdown

35
intensity
70
population
0
cascading
80
historical

Technical Details

EventSevere Thunderstorm Warning
UrgencyImmediate
CertaintyObserved
AreaDescCaddo, LA; Harrison, TX; Marion, TX; Bossier, LA; Webster, LA; Gregg, TX; Harrison, TX; Marion, TX; Upshur, TX
HeadlineSevere Thunderstorm Warning issued May 9 at 12:55AM CDT until May 9 at 1:00AM CDT by NWS Shreveport LA
Expires2026-05-09T01:05:00-05:00
SenderNameNWS Shreveport LA
HasExactCoordstrue
MergedCount3
MergedIds["noaa_urn:oid:2.49.0.1.840.0.a53bae6efa6469f35f2707a86b0fc0a6adceba56.001.1","noaa_urn:oid:2.49.0.1.840.0.c5d0c9b2929a3d2b110a0471f54a42387dda1fbf.001.1","noaa_urn:oid:2.49.0.1.840.0.d32d84c459440714357ec9cf403c0e90a7f51d62.001.1"]
Iem TypeSummaryH
Iem Magnitude1
Iem UnitInch
Iem City1 WNW Ore City
Iem CountyUpshur
Iem StateTX
Iem WfoSHV
Iem RemarkHail to the size of quarters reported in Ore City, Texas.
MergedSources[{"id":"iem_H_32.800_-94.730_1778303580000","source":"iem","severity":"low","severityValue":25,"timestamp":1778303580000,"latitude":32.8,"longitude":-94.73}]

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