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.
25 other detections within 20 km in the last 24 hours, the nearest 11 km from here.
This alert expired on 6 August 2026 at 21:30 UTC. It is kept here as a record.
It is the 10th strongest of the 144 detections recorded within 20 km of this point since 27 April 2026. Another comparable one was recorded here earlier the same day. 8 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued August 6 at 3:43PM CDT until August 6 at 4:30PM CDT by NWS Springfield MO
Urban PEI: 226,297 within a heuristic 50 km radius; not unique people.
Nearby, since 27 April 2026
- June 7, 2026 · score 67 · 11.6 km
- July 5, 2026 · score 43 · 12.1 km
- September 21, 2026 · score 37 · 13.5 km
How we know
6 recorded sources include NOAA; independence is not established by this count.
Our own score for this event is 43 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) | 43 / 100 |
| Legacy data-support index | 0.91/1 |
| Coordinates | 37.2704, -93.2031 |
| Nearest City | Springfield (10 km) |
| Urban exposure index (PEI) | 226.3K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-08-06T20:43:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Severe Thunderstorm Warning_noaa_urn:oid:2.49.0.1.840.0.58e7a3cc590330d2461cb2fd48770ed5 |
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: 2026-08-06T20:43:00.000Z.
First archived: 2026-08-06T20:46:27.085Z. 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 | Greene, MO; Polk, MO; Webster, MO; Dallas, MO; Greene, MO; Laclede, MO; Webster, MO; Wright, MO; Greene, MO |
| Headline | Severe Thunderstorm Warning issued August 6 at 3:43PM CDT until August 6 at 4:30PM CDT by NWS Springfield MO |
| Expires | 2026-08-06T16:30:00-05:00 |
| SenderName | NWS Springfield MO |
| HasExactCoords | true |
| MergedCount | 3 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.58e7a3cc590330d2461cb2fd48770ed5d409ff81.001.1","noaa_urn:oid:2.49.0.1.840.0.cfccffc4045249bcb1bb22d54f658b5d7b470bfa.001.1","noaa_urn:oid:2.49.0.1.840.0.6a773214d5fed4b4adb577bd7b902079301a9ddc.002.1"] |
| Iem TypeSummary | H |
| Iem Magnitude | 1 |
| Iem Unit | Inch |
| Iem City | 3 N Northview |
| Iem County | Webster |
| Iem State | MO |
| Iem Wfo | SGF |
| Iem Remark | Quarter sized hail 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},{"id":"iem_H_37.320_-92.980_1786048500000","source":"iem","severity":"low","severityValue":25,"timestamp":1786048500000,"latitude":37.32,"longitude":-92.98},{"id":"iem_H_37.330_-93.580_1786047120000","source":"iem","severity":"low","severityValue":25,"timestamp":1786047120000,"latitude":37.33,"longitude":-93.58},{"id":"iem_G_37.240_-93.400_1786048800000","source":"iem","severity":"low","severityValue":25,"timestamp":1786048800000,"latitude":37.24,"longitude":-93.4},{"id":"iem_H_37.320_-92.980_1786048620000","source":"iem","severity":"low","severityValue":25,"timestamp":1786048620000,"latitude":37.32,"longitude":-92.98}] |
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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