This alert expired on 15 June 2026 at 19:30 UTC. It is kept here as a record.
It is the 27th strongest of the 42 detections recorded within 20 km of this point since 9 May 2026. The last comparable one was on 5 June 2026. 2 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Flash Flood Warning issued June 15 at 12:56PM CDT until June 15 at 2:30PM CDT by NWS Houston/Galveston TX
An estimated 3,261,228 people live within 50 km of this point.
Nearby, since 9 May 2026
- August 28, 2026 · score 52 · 12.7 km
- August 28, 2026 · score 52 · 15.4 km
- May 27, 2026 · score 52 · 18.0 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 81 % 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 | 81% |
| Coordinates | 30.0436, -95.2236 |
| Nearest City | Humble (6 km) |
| Population Exposed | 3.3M within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-06-15T17:56:00.000Z |
Score Breakdown
Technical Details
| Event | Flash Flood Warning |
| Urgency | Immediate |
| Certainty | Likely |
| AreaDesc | Harris, TX; Montgomery, TX |
| Headline | Flash Flood Warning issued June 15 at 12:56PM CDT until June 15 at 2:30PM CDT by NWS Houston/Galveston TX |
| Expires | 2026-06-15T14:30:00-05:00 |
| SenderName | NWS Houston/Galveston TX |
| HasExactCoords | true |
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 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 Humble (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 188 scientific monitoring sources.