Right now
The most recent data we hold from NOAA arrived 32 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 15 May 2026 at 01:15 UTC. It is kept here as a record.
It is the 4th strongest of the 45 detections recorded within 20 km of this point since 26 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 May 14 at 8:03PM CDT until May 14 at 8:15PM CDT by NWS Topeka KS
Urban PEI: 80,929 within a heuristic 50 km radius; not unique people.
Nearby, since 26 April 2026
- May 15, 2026 · score 39 · 0.0 km
- June 21, 2026 · score 39 · 16.8 km
How we know
6 recorded sources include NOAA; independence is not established by this count.
Our own score for this event is 39 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) | 39 / 100 |
| Legacy data-support index | 0.90/1 |
| Coordinates | 39.1999, -97.1064 |
| Nearest City | Junction City (30 km) |
| Urban exposure index (PEI) | 80.9K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-05-15T01:03:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Severe Thunderstorm Warning_noaa_urn:oid:2.49.0.1.840.0.3a236f54655c32aed85485b094940c34 |
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: 2026-05-15T01:03:00.000Z.
First archived: 2026-05-15T01:06:15.584Z. 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 Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Riley, KS; Ottawa, KS |
| Headline | Severe Thunderstorm Warning issued May 14 at 8:03PM CDT until May 14 at 8:15PM CDT by NWS Topeka KS |
| Expires | 2026-05-14T20:15:00-05:00 |
| SenderName | NWS Topeka KS |
| HasExactCoords | true |
| MergedCount | 2 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.3a236f54655c32aed85485b094940c342b23c5e5.001.1","noaa_urn:oid:2.49.0.1.840.0.1180d37505ce383496be6418d71534a91a1f6cf7.001.1"] |
| Iem TypeSummary | H |
| Iem Magnitude | 1.25 |
| Iem Unit | Inch |
| Iem City | 1 N Culver |
| Iem County | Ottawa |
| Iem State | KS |
| Iem Wfo | TOP |
| MergedSources | [{"id":"iem_H_39.390_-97.130_1778805000000","source":"iem","severity":"low","severityValue":25,"timestamp":1778805000000,"latitude":39.39,"longitude":-97.13},{"id":"iem_H_38.970_-97.760_1778805900000","source":"iem","severity":"low","severityValue":25,"timestamp":1778805900000,"latitude":38.97,"longitude":-97.76},{"id":"iem_H_39.380_-97.130_1778805000000","source":"iem","severity":"low","severityValue":25,"timestamp":1778805000000,"latitude":39.38,"longitude":-97.13},{"id":"iem_H_39.390_-97.130_1778803500000","source":"iem","severity":"low","severityValue":25,"timestamp":1778803500000,"latitude":39.39,"longitude":-97.13},{"id":"iem_H_38.980_-97.760_1778805840000","source":"iem","severity":"low","severityValue":25,"timestamp":1778805840000,"latitude":38.98,"longitude":-97.76}] |
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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