Right now
The most recent data we hold from NOAA arrived 37 minutes ago, and this point is not in it. We record detections, not passes: an absence is not proof that nothing is there.
4 other detections within 20 km in the last 24 hours, the nearest 15 km from here.
This alert expired on 9 July 2026 at 02:00 UTC. It is kept here as a record.
It is the 8th strongest of the 41 detections recorded within 20 km of this point since 15 March 2026. The last comparable one was on 1 June 2026.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued July 8 at 8:38PM CDT until July 8 at 9:00PM CDT by NWS Omaha/Valley NE
Urban PEI: 667,063 within a heuristic 50 km radius; not unique people.
Nearby, since 15 March 2026
- September 3, 2026 · score 41 · 5.6 km
- May 18, 2026 · score 72 · 11.8 km
- May 22, 2026 · score 72 · 17.3 km
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 48 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) | 48 / 100 |
| Legacy data-support index | 0.81/1 |
| Coordinates | 41.5763, -95.9571 |
| Nearest City | Omaha (35 km) |
| Urban exposure index (PEI) | 667.1K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-07-09T01:38:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Severe Thunderstorm Warning_noaa_urn:oid:2.49.0.1.840.0.6d3b03c12ee38a314956218a39858173 |
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: 2026-07-09T01:38:00.000Z.
First archived: 2026-07-09T01:45:55.599Z. 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 | Harrison, IA; Burt, NE; Washington, NE; Dodge, NE; Douglas, NE; Sarpy, NE; Saunders, NE; Washington, NE; Harrison, IA; Shelby, IA |
| Headline | Severe Thunderstorm Warning issued July 8 at 8:38PM CDT until July 8 at 9:00PM CDT by NWS Omaha/Valley NE |
| Expires | 2026-07-08T21:00:00-05:00 |
| SenderName | NWS Omaha/Valley NE |
| HasExactCoords | true |
| MergedCount | 3 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.6d3b03c12ee38a314956218a3985817395db882b.001.1","noaa_urn:oid:2.49.0.1.840.0.1ce7093ea59de705705e1fbaac24a579195586d2.001.1","noaa_urn:oid:2.49.0.1.840.0.9c65a814dbe907f743237c613327751895bf4296.001.1"] |
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.
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