Right now
The most recent data we hold from NOAA arrived 2 minutes ago, and this point is in it.
6 other detections within 20 km in the last 24 hours, the nearest <1 km from here.
This alert is in force until 8 September 2026, 02:00 UTC.
It is the 36th strongest of the 67 detections recorded within 20 km of this point since 12 March 2026. Another comparable one was recorded here earlier the same day.
What the source measured
NOAA reported: Tropical Storm Warning issued September 7 at 7:54AM HST by NWS Honolulu HI
Nearby, since 12 March 2026
- March 14, 2026 · score 22 · 4.6 km
- March 13, 2026 · score 22 · 4.6 km
- May 16, 2026 · score 22 · 4.7 km
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 16 out of 100, at 61 % confidence.
The score is ours, computed from intensity, exposed population and local history — not the source’s.
Computed under scoring rules v4. Rows carrying other versions were judged by different rules and are not directly comparable.
Event Data
| Type | Severe Weather |
| Severity | Medium |
| Calamity Score (ours) | 16 / 100 |
| Our confidence | 61% |
| Coordinates | 21.4259, -157.9527 |
| Nearest City | Pearl City (4 km) |
| Impact Tier | minor |
| Timestamp | 2026-09-07T17:54:00.000Z |
| Source | https://api.weather.gov/alerts/urn%3Aoid%3A2.49.0.1.840.0.2081d8d6c409f77ac23b374cc5d8d88988e34c8e.013.1 |
Score Breakdown
Technical Details
| Event | Tropical Storm Warning |
| Urgency | Immediate |
| Certainty | Likely |
| AreaDesc | Koolau Leeward; Waianae Coast; Central Oahu and 7 more areas |
| Headline | Tropical Storm Warning issued September 7 at 7:54AM HST by NWS Honolulu HI |
| Expires | 2026-09-07T16:00:00-10:00 |
| SenderName | NWS Honolulu HI |
| HasExactCoords | true |
| MergedCount | 10 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.2081d8d6c409f77ac23b374cc5d8d88988e34c8e.013.1","noaa_urn:oid:2.49.0.1.840.0.2081d8d6c409f77ac23b374cc5d8d88988e34c8e.010.1","noaa_urn:oid:2.49.0.1.840.0.2081d8d6c409f77ac23b374cc5d8d88988e34c8e.015.1","noaa_urn:oid:2.49.0.1.840.0.2081d8d6c409f77ac23b374cc5d8d88988e34c8e.012.1","noaa_urn:oid:2.49.0.1.840.0.2081d8d6c409f77ac23b374cc5d8d88988e34c8e.008.1","noaa_urn:oid:2.49.0.1.840.0.2081d8d6c409f77ac23b374cc5d8d88988e34c8e.014.1","noaa_urn:oid:2.49.0.1.840.0.2081d8d6c409f77ac23b374cc5d8d88988e34c8e.016.1","noaa_urn:oid:2.49.0.1.840.0.2081d8d6c409f77ac23b374cc5d8d88988e34c8e.007.1","noaa_urn:oid:2.49.0.1.840.0.2081d8d6c409f77ac23b374cc5d8d88988e34c8e.011.1","noaa_urn:oid:2.49.0.1.840.0.2081d8d6c409f77ac23b374cc5d8d88988e34c8e.009.1"] |
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 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.
Want to know when something happens near Pearl City?
Calamity.live data shows a weather event with CalamityScore 16/100, near Pearl City (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.