Right now
The most recent data we hold from NOAA arrived 16 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 3 July 2026 at 10:30 UTC. It is kept here as a record.
It is the 13th strongest of the 47 detections recorded within 20 km of this point since 17 May 2026. Another comparable one was recorded here earlier the same day. 6 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Flash Flood Warning issued July 2 at 11:39PM CDT until July 3 at 5:30AM CDT by NWS North Platte NE
Nearby, since 17 May 2026
- September 1, 2026 · score 28 · 22.9 km
How we know
2 recorded sources include NOAA; independence is not established by this count.
Our own score for this event is 22 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) | 22 / 100 |
| Legacy data-support index | 0.64/1 |
| Coordinates | 42.7537, -98.4650 |
| Nearest City | Mitchell (112 km) |
| Urban exposure index (PEI) | 0 within 50 km |
| Impact Tier | minor |
| Timestamp | 2026-07-03T04:39:00.000Z |
| Source | https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.ec542d54d5c6cd2206825f8adf62f1edf6f5c6fc.001.1 |
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: 2026-07-03T04:39:00.000Z.
First archived: 2026-07-03T05:11:36.293Z. 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 | Flash Flood Warning |
| Urgency | Immediate |
| Certainty | Likely |
| AreaDesc | Boyd, NE; Holt, NE |
| Headline | Flash Flood Warning issued July 2 at 11:39PM CDT until July 3 at 5:30AM CDT by NWS North Platte NE |
| Expires | 2026-07-03T05:30:00-05:00 |
| SenderName | NWS North Platte NE |
| HasExactCoords | true |
| Iem TypeSummary | G |
| Iem Magnitude | 64 |
| Iem Unit | MPH |
| Iem City | 12 N Page |
| Iem County | Holt |
| Iem State | NE |
| Iem Wfo | LBF |
| Iem Remark | PWS. |
| MergedSources | [{"id":"iem_G_42.580_-98.430_1783053000000","source":"iem","severity":"low","severityValue":25,"timestamp":1783053000000,"latitude":42.58,"longitude":-98.43}] |
Safety Information
During flooding: never walk, swim, or drive through floodwaters. Six inches of moving water can knock you down, and one foot of water can sweep away a vehicle. Move to higher ground if waters rise. After flooding, avoid contact with floodwater which may contain sewage, chemicals, or debris. Follow local emergency service guidance.
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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