Right now
The most recent data we hold from NOAA arrived 86 minutes ago, and this point is not in it. We record detections, not passes: an absence is not proof that nothing is there.
This alert expired on 12 June 2026 at 02:00 UTC. It is kept here as a record.
What the source measured
NOAA reported: Severe Thunderstorm Watch issued June 11 at 2:53PM CDT until June 11 at 9:00PM CDT by NWS St Louis MO
Urban PEI: 450,012 within a heuristic 50 km radius; not unique people.
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
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 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) | 37 / 100 |
| Legacy data-support index | 0.80/1 |
| Coordinates | 40.6000, -89.4000 |
| Nearest City | Morton (5 km) |
| Urban exposure index (PEI) | 450.0K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-06-11T19:53:00.000Z |
| Source | https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.92c411985163421fedb1cc198785de815d57992e.001.1 |
Physical priority index · v1. 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: 2026-06-11T19:53:00.000Z.
First archived: 2026-06-11T23:01:29.098Z. Material modification: not recorded.
Retained revisions are prospective; earlier versions may be unavailable. No revision entry does not prove that a record never changed.
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Watch |
| Urgency | Future |
| Certainty | Possible |
| AreaDesc | Calhoun, IL; Greene, IL; Jersey, IL; Macoupin, IL; Madison, IL; Monroe, IL; St. Clair, IL; Audrain, MO; Boone, MO; Callaway, MO; Cole, MO; Crawford, MO; Franklin, MO; Gasconade, MO; Jefferson, MO; Lincoln, MO; Moniteau, MO; Monroe, MO; Montgomery, MO; Osage, MO; Pike, MO; Ralls, MO; St. Charles, MO; St. Louis, MO; Warren, MO; Washington, MO; St. Louis City, MO |
| Headline | Severe Thunderstorm Watch issued June 11 at 2:53PM CDT until June 11 at 9:00PM CDT by NWS St Louis MO |
| Expires | 2026-06-11T21:00:00-05:00 |
| SenderName | NWS St Louis MO |
| HasExactCoords | false |
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.
Want to know when something happens near Morton?