Right now
The most recent data we hold from NOAA arrived 24 minutes ago, and this point is not in it. We record detections, not passes: an absence is not proof that nothing is there.
Nothing else has been detected within 20 km in the last 24 hours.
This alert expired on 19 May 2026 at 06:00 UTC. It is kept here as a record.
No stronger detection stands among the 308 recorded within 20 km of this point since 10 March 2026 — 77 others scored the same. Another comparable one was recorded here earlier the same day. 61 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Tornado Watch issued May 18 at 10:58PM CDT until May 19 at 1:00AM CDT by NWS Kansas City/Pleasant Hill MO
Urban PEI: 15,717 within a heuristic 50 km radius; not unique people.
Nearby, since 10 March 2026
- September 15, 2026 · score 28 · 0.0 km
- September 14, 2026 · score 28 · 0.0 km
- September 12, 2026 · score 28 · 0.0 km
How we know
3 recorded sources include NOAA; independence is not established by this count.
Our own score for this event is 46 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 | High |
| Calamity Score (ours) | 46 / 100 |
| Legacy data-support index | 0.89/1 |
| Coordinates | 38.5000, -98.8000 |
| Nearest City | Great Bend (16 km) |
| Urban exposure index (PEI) | 15.7K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-05-19T03:58:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Tornado Watch_noaa_urn:oid:2.49.0.1.840.0.3f16eed885020f460bd36eb939137a96 |
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: 2026-05-19T03:58:00.000Z.
First archived: 2026-05-19T04:52:38.504Z. 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 | Tornado Watch |
| Urgency | Future |
| Certainty | Possible |
| AreaDesc | Linn, KS; Miami, KS; Adair, MO; Bates, MO; Carroll, MO; Cass, MO; Chariton, MO; Cooper, MO; Henry, MO; Howard, MO; Johnson, MO; Lafayette, MO; Linn, MO; Macon, MO; Pettis, MO; Putnam, MO; Randolph, MO; Saline, MO; Schuyler, MO; Sullivan, MO; Anderson, KS; Coffey, KS; Franklin, KS |
| Headline | Tornado Watch issued May 18 at 10:58PM CDT until May 19 at 1:00AM CDT by NWS Kansas City/Pleasant Hill MO |
| Expires | 2026-05-19T01:00:00-05:00 |
| SenderName | NWS Kansas City/Pleasant Hill MO |
| HasExactCoords | false |
| MergedCount | 2 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.3f16eed885020f460bd36eb939137a960de8895b.002.1","noaa_urn:oid:2.49.0.1.840.0.ff8346e93cdf27944e4e93c72f6c7d7181916f78.002.1"] |
| Iem TypeSummary | H |
| Iem Magnitude | 1.25 |
| Iem Unit | Inch |
| Iem City | 2 E Lewis |
| Iem County | Edwards |
| Iem State | KS |
| Iem Wfo | DDC |
| Iem Remark | Social media report of half dollar sized hail. |
| MergedSources | [{"id":"iem_H_37.960_-98.760_1779142260000","source":"iem","severity":"low","severityValue":25,"timestamp":1779142260000,"latitude":37.96,"longitude":-98.76},{"id":"iem_H_37.940_-99.220_1779141900000","source":"iem","severity":"low","severityValue":25,"timestamp":1779141900000,"latitude":37.94,"longitude":-99.22}] |
Safety Information
If a tornado warning is issued: go to a basement or an interior room on the lowest floor, away from windows. A vehicle and a mobile home are not shelter. Cover your head and neck. Wait for the official all-clear before going outside, and watch for downed power lines and gas leaks afterwards.
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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