Right now
The most recent data we hold from NOAA arrived 11 minutes ago, and this point is not in it. We record detections, not passes: an absence is not proof that nothing is there.
One other detection within 20 km in the last 24 hours, 23 km from here.
This alert expired on 23 May 2026 at 09:00 UTC. It is kept here as a record.
No stronger detection stands among the 30 recorded within 20 km of this point since 15 March 2026 — 10 others scored the same. The last comparable one was on 19 May 2026. 2 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued May 23 at 3:01AM CDT until May 23 at 4:00AM CDT by NWS Fort Worth TX
An estimated 3,710,174 people live within 50 km of this point.
Nearby, since 15 March 2026
- June 20, 2026 · score 52 · 7.9 km
- June 20, 2026 · score 52 · 9.2 km
- May 10, 2026 · score 52 · 11.1 km
How we know
Confirmed by 3 independent sources, including NOAA.
Our own score for this event is 52 out of 100, at 90 % confidence.
The score is ours, computed from intensity, exposed population and local history — not the source’s.
Computed under scoring rules v1. Rows carrying other versions were judged by different rules and are not directly comparable.
Event Data
| Type | Severe Weather |
| Severity | Medium |
| Calamity Score (ours) | 52 / 100 |
| Our confidence | 90% |
| Coordinates | 33.0809, -96.5900 |
| Nearest City | Murphy (7 km) |
| Population Exposed | 3.7M within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-05-23T08:01:00.000Z |
| Source | https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.065263390fadc6cc816bba1467fb6b00c71217ea.001.1 |
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Collin, TX; Dallas, TX; Denton, TX; Rockwall, TX |
| Headline | Severe Thunderstorm Warning issued May 23 at 3:01AM CDT until May 23 at 4:00AM CDT by NWS Fort Worth TX |
| Expires | 2026-05-23T04:00:00-05:00 |
| SenderName | NWS Fort Worth TX |
| HasExactCoords | true |
| Iem TypeSummary | H |
| Iem Magnitude | 1 |
| Iem Unit | Inch |
| Iem City | 1 NW Grapevine |
| Iem County | Tarrant |
| Iem State | TX |
| Iem Wfo | FWD |
| Iem Remark | Hail up to 1 inch was reported. |
| MergedSources | [{"id":"iem_H_32.670_-96.850_1779521340000","source":"iem","severity":"low","severityValue":25,"timestamp":1779521340000,"latitude":32.67,"longitude":-96.85},{"id":"iem_H_32.940_-97.090_1779520560000","source":"iem","severity":"low","severityValue":25,"timestamp":1779520560000,"latitude":32.94,"longitude":-97.09}] |
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 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 Murphy?
Calamity.live data shows a weather event with CalamityScore 52/100, near Murphy (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.