Calamity
mediumSevere weatherCalamity Score: 43

Severe weather near Twentynine Palms

RiversideUnited StatesNOAA

This alert expired on 11 August 2026 at 23:15 UTC. It is kept here as a record.

What the source measured

NOAA reported: Severe Thunderstorm Warning issued August 11 at 3:36PM PDT until August 11 at 4:15PM PDT by NWS Las Vegas NV

An estimated 419,753 people live within 50 km of this point.

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 80 % confidence.

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

Event Data

TypeSevere weather
Severitymedium
Calamity Score (ours)43 / 100
Our confidence80%
Coordinates34.0126, -116.1673
Nearest CityTwentynine Palms (18 km)
Population Exposed419.8K within 50 km
Impact Tiersignificant
Timestamp2026-08-11T22:36:00.000Z

Score Breakdown

35
intensity
70
population
0
cascading
80
historical

Technical Details

EventSevere Thunderstorm Warning
UrgencyImmediate
CertaintyObserved
AreaDescSan Bernardino, CA; San Diego, CA; Riverside, CA; San Bernardino, CA
HeadlineSevere Thunderstorm Warning issued August 11 at 3:36PM PDT until August 11 at 4:15PM PDT by NWS Las Vegas NV
Expires2026-08-11T16:15:00-07:00
SenderNameNWS Las Vegas NV
HasExactCoordstrue
MergedCount3
MergedIds["noaa_urn:oid:2.49.0.1.840.0.db9ca5ac703413d42dea38764114a5b104b1c1cd.001.1","noaa_urn:oid:2.49.0.1.840.0.413a5984731ee1153446396a17ea5a9d5bfe0b2b.001.1","noaa_urn:oid:2.49.0.1.840.0.ed1b27d728016969c77ffe75615f50ea0a4d4cbf.001.1"]

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 10 February 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 Twentynine Palms (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 188 scientific monitoring sources.