Right now
The most recent data we hold from NOAA arrived 4 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 18 May 2026 at 08:00 UTC. It is kept here as a record.
No stronger detection stands among the 303 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. 32 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Tornado Watch issued May 17 at 8:08PM CDT until May 18 at 3:00AM CDT by NWS Kansas City/Pleasant Hill MO
An estimated 15,717 people live within 50 km of this point.
Nearby, since 10 March 2026
- September 6, 2026 · score 28 · 0.0 km
- August 28, 2026 · score 34 · 0.0 km
- August 7, 2026 · score 34 · 0.0 km
How we know
Confirmed by 13 independent sources, including NOAA.
Our own score for this event is 46 out of 100, at 90 % confidence.
The score is ours, computed from intensity, exposed population and local history — not the source’s.
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 |
| Our confidence | 90% |
| Coordinates | 38.5000, -98.8000 |
| Nearest City | Great Bend (16 km) |
| Population Exposed | 15.7K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-05-18T01:08:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Tornado Watch_noaa_urn:oid:2.49.0.1.840.0.f00acc3393c0ea0659116738d4abe96f |
Score Breakdown
Technical Details
| Event | Tornado Watch |
| Urgency | Future |
| Certainty | Possible |
| AreaDesc | Doniphan, KS; Andrew, MO; Atchison, MO; Gentry, MO; Harrison, MO; Holt, MO; Mercer, MO; Nodaway, MO; Worth, MO; Clay, KS; Cloud, KS; Dickinson, KS; Geary, KS; Marshall, KS; Nemaha, KS; Ottawa, KS; Pottawatomie, KS; Republic, KS; Riley, KS; Washington, KS; Brown, KS and 2 more areas |
| Headline | Tornado Watch issued May 17 at 8:08PM CDT until May 18 at 3:00AM CDT by NWS Kansas City/Pleasant Hill MO |
| Expires | 2026-05-18T03:00:00-05:00 |
| SenderName | NWS Kansas City/Pleasant Hill MO |
| HasExactCoords | false |
| MergedCount | 5 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.f00acc3393c0ea0659116738d4abe96f748d5f3e.001.1","noaa_urn:oid:2.49.0.1.840.0.d1f54560099298a1d454cc779aa458139508bdf5.002.1","noaa_urn:oid:2.49.0.1.840.0.d1f54560099298a1d454cc779aa458139508bdf5.001.1","noaa_urn:oid:2.49.0.1.840.0.9362a1430207fdad4ef48bec26a62b567099adf4.001.1","noaa_urn:oid:2.49.0.1.840.0.9362a1430207fdad4ef48bec26a62b567099adf4.002.1"] |
| Iem TypeSummary | H |
| Iem Magnitude | 1.25 |
| Iem Unit | Inch |
| Iem City | 9 S Nekoma |
| Iem County | Pawnee |
| Iem State | KS |
| Iem Wfo | DDC |
| Iem Remark | Social media report of half-dollar sized hail. |
| MergedSources | [{"id":"iem_H_38.490_-99.310_1779071400000","source":"iem","severity":"low","severityValue":25,"timestamp":1779071400000,"latitude":38.49,"longitude":-99.31},{"id":"iem_H_38.470_-99.180_1779070200000","source":"iem","severity":"low","severityValue":25,"timestamp":1779070200000,"latitude":38.47,"longitude":-99.18},{"id":"iem_H_38.530_-99.050_1779061020000","source":"iem","severity":"low","severityValue":25,"timestamp":1779061020000,"latitude":38.53,"longitude":-99.05},{"id":"iem_H_38.300_-99.460_1779065400000","source":"iem","severity":"low","severityValue":25,"timestamp":1779065400000,"latitude":38.3,"longitude":-99.46},{"id":"iem_W_38.550_-98.770_1779059100000","source":"iem","severity":"low","severityValue":25,"timestamp":1779059100000,"latitude":38.55,"longitude":-98.77},{"id":"iem_H_38.340_-99.420_1779066180000","source":"iem","severity":"low","severityValue":25,"timestamp":1779066180000,"latitude":38.34,"longitude":-99.42},{"id":"iem_H_38.360_-99.400_1779065040000","source":"iem","severity":"low","severityValue":25,"timestamp":1779065040000,"latitude":38.36,"longitude":-99.4},{"id":"iem_H_38.540_-99.050_1779061560000","source":"iem","severity":"low","severityValue":25,"timestamp":1779061560000,"latitude":38.54,"longitude":-99.05},{"id":"iem_H_38.460_-99.310_1779068940000","source":"iem","severity":"low","severityValue":25,"timestamp":1779068940000,"latitude":38.46,"longitude":-99.31},{"id":"iem_H_38.470_-99.440_1779069960000","source":"iem","severity":"low","severityValue":25,"timestamp":1779069960000,"latitude":38.47,"longitude":-99.44},{"id":"iem_H_38.470_-99.180_1779068400000","source":"iem","severity":"low","severityValue":25,"timestamp":1779068400000,"latitude":38.47,"longitude":-99.18},{"id":"iem_H_38.340_-99.420_1779062580000","source":"iem","severity":"low","severityValue":25,"timestamp":1779062580000,"latitude":38.34,"longitude":-99.42}] |
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.
Want to know when something happens near Great Bend?
Calamity.live data shows a weather event with CalamityScore 46/100, near Great Bend (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.