Right now
The most recent data we hold from NOAA arrived 3 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 6 August 2026 at 21:15 UTC. It is kept here as a record.
It is the 28th strongest of the 116 detections recorded within 20 km of this point since 27 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 August 6 at 3:35PM CDT until August 6 at 4:15PM CDT by NWS Springfield MO
Urban PEI: 226,297 within a heuristic 50 km radius; not unique people.
Nearby, since 27 April 2026
- July 5, 2026 · score 43 · 9.2 km
- June 14, 2026 · score 43 · 12.8 km
- June 7, 2026 · score 67 · 15.4 km
How we know
2 recorded sources include NOAA; independence is not established by this count.
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 | 0.85/1 |
| Coordinates | 37.2782, -93.1515 |
| Nearest City | Springfield (15 km) |
| Urban exposure index (PEI) | 226.3K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-08-06T20:35:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Severe Thunderstorm Warning_noaa_urn:oid:2.49.0.1.840.0.cfccffc4045249bcb1bb22d54f658b5d |
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: 2026-08-06T20:35:00.000Z.
First archived: 2026-08-06T20:41:20.288Z. 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 | Dallas, MO; Greene, MO; Laclede, MO; Webster, MO; Wright, MO; Greene, MO; Dallas, MO; Greene, MO; Polk, MO; Webster, MO |
| Headline | Severe Thunderstorm Warning issued August 6 at 3:35PM CDT until August 6 at 4:15PM CDT by NWS Springfield MO |
| Expires | 2026-08-06T16:15:00-05:00 |
| SenderName | NWS Springfield MO |
| HasExactCoords | true |
| MergedCount | 3 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.cfccffc4045249bcb1bb22d54f658b5d7b470bfa.001.1","noaa_urn:oid:2.49.0.1.840.0.6a773214d5fed4b4adb577bd7b902079301a9ddc.002.1","noaa_urn:oid:2.49.0.1.840.0.5655b6e24723b85959b38e9c7b3a31169f5a4efc.001.1"] |
| Iem TypeSummary | H |
| Iem Magnitude | 1.25 |
| Iem Unit | Inch |
| Iem City | 1 S Pleasant Hope |
| Iem County | Polk |
| Iem State | MO |
| Iem Wfo | SGF |
| Iem Remark | Hail from quarters to half dollars in size was reported. |
| MergedSources | [{"id":"iem_H_37.460_-93.270_1786045560000","source":"iem","severity":"low","severityValue":25,"timestamp":1786045560000,"latitude":37.46,"longitude":-93.27}] |
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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