This alert expired on 19 May 2026 at 01:45 UTC. It is kept here as a record.
It is the 4th strongest of the 16 detections recorded within 20 km of this point since 17 April 2026. Another comparable one was recorded here earlier the same day. 3 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued May 18 at 8:03PM CDT until May 18 at 8:45PM CDT by NWS Topeka KS
An estimated 182,271 people live within 50 km of this point.
Nearby, since 17 April 2026
- July 4, 2026 · score 43 · 14.7 km
- May 19, 2026 · score 67 · 22.3 km
How we know
Confirmed by 8 independent sources, including NOAA.
Our own score for this event is 43 out of 100, at 90 % confidence.
The score is ours, computed from intensity, exposed population and local history — not the source’s.
Event Data
| Type | Severe weather |
| Severity | medium |
| Calamity Score (ours) | 43 / 100 |
| Our confidence | 90% |
| Coordinates | 38.9181, -96.2069 |
| Nearest City | Manhattan (43 km) |
| Population Exposed | 182.3K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-05-19T01:03:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Severe Thunderstorm Warning_noaa_urn:oid:2.49.0.1.840.0.bba2fe906879b812a6d2563812d30dd4 |
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Jefferson, KS; Osage, KS; Shawnee, KS; Wabaunsee, KS; Doniphan, KS; Andrew, MO; Atchison, MO; Holt, MO; Nodaway, MO; Coffey, KS; Franklin, KS; Lyon, KS; Osage, KS; Wabaunsee, KS and 8 more areas |
| Headline | Severe Thunderstorm Warning issued May 18 at 8:03PM CDT until May 18 at 8:45PM CDT by NWS Topeka KS |
| Expires | 2026-05-18T20:45:00-05:00 |
| SenderName | NWS Topeka KS |
| HasExactCoords | true |
| MergedCount | 11 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.bba2fe906879b812a6d2563812d30dd421b10c84.002.1","noaa_urn:oid:2.49.0.1.840.0.dd74d67b25614bda34f304a7d65d0543b3bbe835.001.1","noaa_urn:oid:2.49.0.1.840.0.6c7f2c135d1cd2954b010c88f1caf7d2598803f8.001.1","noaa_urn:oid:2.49.0.1.840.0.b813f46c63d198d791ee069a2cfe8facd5eeab6a.001.1","noaa_urn:oid:2.49.0.1.840.0.0a3e48646f7e1489648eee749055d45b81b7640a.001.1","noaa_urn:oid:2.49.0.1.840.0.d5abce18ddc980aa2ea4ef425bfa7159e4675ee5.001.1","noaa_urn:oid:2.49.0.1.840.0.52cdec9d3ea45a3fb53ae885ad0a7115bb679ac4.001.1","noaa_urn:oid:2.49.0.1.840.0.7119a98149e3519cb77b2cadb8465b42589d781e.001.1","noaa_urn:oid:2.49.0.1.840.0.69c489161c76c18bcfea979451b8a87d41bb711f.001.1","noaa_urn:oid:2.49.0.1.840.0.48d743ee90986a8840c2f045200de0f10ed74d91.001.1","noaa_urn:oid:2.49.0.1.840.0.f7acf0c19841207f75867b12d0516593eddb85f1.001.1"] |
| Iem TypeSummary | G |
| Iem Magnitude | 78 |
| Iem Unit | MPH |
| Iem City | 2 SW Louisville |
| Iem County | Pottawatomie |
| Iem State | KS |
| Iem Wfo | TOP |
| Iem Remark | Measured on a personal weather station. |
| MergedSources | [{"id":"iem_G_39.110_-96.710_1779146520000","source":"iem","severity":"low","severityValue":25,"timestamp":1779146520000,"latitude":39.11,"longitude":-96.71},{"id":"iem_H_38.800_-96.740_1779149520000","source":"iem","severity":"low","severityValue":25,"timestamp":1779149520000,"latitude":38.8,"longitude":-96.74},{"id":"iem_G_39.230_-96.570_1779146880000","source":"iem","severity":"low","severityValue":25,"timestamp":1779146880000,"latitude":39.23,"longitude":-96.57},{"id":"iem_G_39.270_-96.520_1779147660000","source":"iem","severity":"low","severityValue":25,"timestamp":1779147660000,"latitude":39.27,"longitude":-96.52},{"id":"iem_H_39.020_-96.450_1779150840000","source":"iem","severity":"low","severityValue":25,"timestamp":1779150840000,"latitude":39.02,"longitude":-96.45},{"id":"iem_H_38.970_-97.020_1779145800000","source":"iem","severity":"low","severityValue":25,"timestamp":1779145800000,"latitude":38.97,"longitude":-97.02},{"id":"iem_G_39.230_-96.340_1779148140000","source":"iem","severity":"low","severityValue":25,"timestamp":1779148140000,"latitude":39.23,"longitude":-96.34}] |
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 10 February 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 Manhattan?
Calamity.live data shows a weather event with CalamityScore 43/100 (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 187 scientific monitoring sources.