This alert expired on 12 July 2026 at 21:00 UTC. It is kept here as a record.
It is the 27th strongest of the 49 detections recorded within 20 km of this point since 23 May 2026. Another comparable one was recorded here earlier the same day. One more was recorded here in the fortnight before it.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued July 12 at 3:46PM CDT until July 12 at 4:00PM CDT by NWS Houston/Galveston TX
An estimated 3,552,079 people live within 50 km of this point.
Nearby, since 23 May 2026
- June 15, 2026 · score 52 · 14.7 km
- May 24, 2026 · score 52 · 16.2 km
- May 23, 2026 · score 52 · 16.2 km
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 52 out of 100, at 80 % confidence.
The score is ours, computed from intensity, exposed population and local history — not the source’s.
Event Data
| Type | Severe weather |
| Severity | medium |
| Calamity Score (ours) | 52 / 100 |
| Our confidence | 80% |
| Coordinates | 29.9550, -95.5750 |
| Nearest City | Cypress (12 km) |
| Population Exposed | 3.6M within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-07-12T20:46:00.000Z |
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Harris, TX; Montgomery, TX |
| Headline | Severe Thunderstorm Warning issued July 12 at 3:46PM CDT until July 12 at 4:00PM CDT by NWS Houston/Galveston TX |
| Expires | 2026-07-12T16:00:00-05:00 |
| SenderName | NWS Houston/Galveston TX |
| HasExactCoords | true |
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.
Calamity.live data shows a weather event with CalamityScore 52/100, near Cypress (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 188 scientific monitoring sources.