This alert expired on 16 June 2026 at 23:45 UTC. It is kept here as a record.
It is the 3rd strongest of the 10 detections recorded within 20 km of this point since 20 May 2026. The last comparable one was on 27 May 2026.
What the source measured
NOAA reported: Tropical Storm Watch issued June 16 at 10:38AM CDT by NWS Houston/Galveston TX
An estimated 71,090 people live within 50 km of this point.
Nearby, since 20 May 2026
- May 23, 2026 · score 43 · 19.1 km
- May 20, 2026 · score 43 · 20.7 km
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 39 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) | 39 / 100 |
| Our confidence | 80% |
| Coordinates | 29.5282, -93.8068 |
| Nearest City | Port Arthur (42 km) |
| Population Exposed | 71.1K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-06-16T15:38:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Tropical Storm Watch_noaa_urn:oid:2.49.0.1.840.0.a17b60271cc14fcf18ebcff5f5d6d907 |
Score Breakdown
Technical Details
| Event | Tropical Storm Watch |
| Urgency | Future |
| Certainty | Possible |
| AreaDesc | Chambers; Bolivar Peninsula; Galveston Island and 11 more areas |
| Headline | Tropical Storm Watch issued June 16 at 10:38AM CDT by NWS Houston/Galveston TX |
| Expires | 2026-06-16T18:45:00-05:00 |
| SenderName | NWS Houston/Galveston TX |
| HasExactCoords | true |
| MergedCount | 14 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.a17b60271cc14fcf18ebcff5f5d6d9074ffde039.004.1","noaa_urn:oid:2.49.0.1.840.0.a17b60271cc14fcf18ebcff5f5d6d9074ffde039.002.1","noaa_urn:oid:2.49.0.1.840.0.a17b60271cc14fcf18ebcff5f5d6d9074ffde039.001.1","noaa_urn:oid:2.49.0.1.840.0.a17b60271cc14fcf18ebcff5f5d6d9074ffde039.005.1","noaa_urn:oid:2.49.0.1.840.0.a17b60271cc14fcf18ebcff5f5d6d9074ffde039.007.1","noaa_urn:oid:2.49.0.1.840.0.a17b60271cc14fcf18ebcff5f5d6d9074ffde039.003.1","noaa_urn:oid:2.49.0.1.840.0.a17b60271cc14fcf18ebcff5f5d6d9074ffde039.006.1","noaa_urn:oid:2.49.0.1.840.0.e28b7779096062020c0ed523d922fdca2e0f2678.002.1","noaa_urn:oid:2.49.0.1.840.0.e28b7779096062020c0ed523d922fdca2e0f2678.003.1","noaa_urn:oid:2.49.0.1.840.0.e28b7779096062020c0ed523d922fdca2e0f2678.006.1","noaa_urn:oid:2.49.0.1.840.0.e28b7779096062020c0ed523d922fdca2e0f2678.005.1","noaa_urn:oid:2.49.0.1.840.0.e28b7779096062020c0ed523d922fdca2e0f2678.001.1","noaa_urn:oid:2.49.0.1.840.0.e28b7779096062020c0ed523d922fdca2e0f2678.004.1","noaa_urn:oid:2.49.0.1.840.0.980461307bcc12a6cb3ca80d33245d1abe4525a8.001.1"] |
Safety Information
During a tropical cyclone: shelter in a sturdy interior room away from windows. Stock emergency supplies including water, food, medications, and flashlights. Do not venture outdoors during the eye of the storm. After passage, beware of downed power lines, flooding, and structural damage. Follow official guidance for evacuation and shelter.
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 39/100 (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 188 scientific monitoring sources.