Right now
The most recent data we hold from NOAA arrived 3 minutes ago, and this point is in it.
3 other detections within 20 km in the last 24 hours, the nearest 25 km from here.
This alert expired on 14 September 2026 at 22:30 UTC. It is kept here as a record.
It is the 11th strongest of the 23 detections recorded within 20 km of this point since 24 April 2026. Another comparable one was recorded here earlier the same day. 5 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued September 14 at 4:48PM CDT until September 14 at 5:30PM CDT by NWS Jackson MS
Urban PEI: 279,096 within a heuristic 50 km radius; not unique people.
Nearby, since 24 April 2026
- June 22, 2026 · score 43 · 5.9 km
- May 17, 2026 · score 43 · 11.7 km
- September 4, 2026 · score 37 · 14.7 km
How we know
2 recorded sources include NOAA; independence is not established by this count.
Our own score for this event is 37 out of 100.
This is our versioned heuristic index, not source severity or a calibrated probability. Urban PEI does not count unique people.
Computed under scoring rules v5. Rows carrying other versions were judged by different rules and are not directly comparable.
Event Data
| Type | Severe Weather |
| Severity | Medium |
| Calamity Score (ours) | 37 / 100 |
| Legacy data-support index | 0.86/1 |
| Coordinates | 32.5491, -90.3664 |
| Nearest City | Clinton (24 km) |
| Urban exposure index (PEI) | 279.1K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-09-14T21:48:00.000Z |
| Source | https://api.weather.gov/alerts/urn%3Aoid%3A2.49.0.1.840.0.376d4c9d30080d8b510c2f4b3048879e84ba0c5d.001.1 |
Physical priority index · v5. Heuristic priority, not calibrated probability, predictive accuracy or damage. The legacy data-support index combines assigned source support and field availability. Urban PEI is distance-weighted and does not count unique people; zero does not establish that nobody is present. Model cards.
Source and revision timeline
Source: noaa. Occurrence: 2026-09-14T21:48:00.000Z.
First archived: 2026-09-14T21:54:08.573Z. Material modification: not recorded.
Retained revisions are prospective; earlier versions may be unavailable. No revision entry does not prove that a record never changed.
2026-09-14T22:26:24.304Z · data_change
Index 37 → 37; severity medium → medium; version 5 → 5.
2026-09-14T22:10:22.252Z · data_change
Index 37 → 37; severity medium → medium; version 5 → 5.
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Hinds, MS; Madison, MS |
| Headline | Severe Thunderstorm Warning issued September 14 at 4:48PM CDT until September 14 at 5:30PM CDT by NWS Jackson MS |
| Expires | 2026-09-14T17:30:00-05:00 |
| SenderName | NWS Jackson MS |
| HasExactCoords | true |
| Heat Gov Event | Heat Advisory |
| Heat Gov Urgency | Expected |
| Heat Gov Certainty | Likely |
| Heat Gov Onset | 2026-09-14T12:57:00-05:00 |
| Heat Gov Expires | 2026-09-14T21:00:00-05:00 |
| Heat Gov AreaDesc | Ashley; Chicot; Morehouse; West Carroll; East Carroll; Richland; Madison; Franklin; Catahoula; Tensas; Concordia; Bolivar; Sunflower; Leflore; Grenada; Carroll; Montgomery; Webster; Clay; Lowndes; Choctaw; Oktibbeha; Washington; Humphreys; Holmes; Attala; Issaquena; Sharkey; Yazoo; Madison; Warren; Hinds; Rankin; Claiborne; Copiah; Simpson; Jefferson; Adams; Franklin; Lincoln; Lawrence; Jefferson Davis; Marion |
| Heat Gov SenderName | NWS Jackson MS |
| Heat Gov ZonesUsedForCentroid | 11 |
| Heat Gov ZoneCount | 43 |
| MergedSources | [{"id":"heat_gov_32.7_-90.6_heat_advisory_2026-09-14","source":"heat_gov","severity":"medium","severityValue":50,"timestamp":1789408620000,"latitude":32.692170545245325,"longitude":-90.57414893888397}] |
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.
Review the area, threshold and delivery channel in your account.
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