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 5 July 2026 at 22:00 UTC. It is kept here as a record.
It is the 3rd strongest of the 32 detections recorded within 20 km of this point since 17 March 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 July 5 at 5:40PM EDT until July 5 at 6:00PM EDT by NWS Pittsburgh PA
Urban PEI: 87,505 within a heuristic 50 km radius; not unique people.
Nearby, since 17 March 2026
- August 2, 2026 · score 39 · 3.4 km
- July 19, 2026 · score 63 · 10.1 km
- July 28, 2026 · score 39 · 10.7 km
How we know
5 recorded sources include NOAA; independence is not established by this count.
Our own score for this event is 39 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) | 39 / 100 |
| Legacy data-support index | 0.88/1 |
| Coordinates | 40.6621, -78.2579 |
| Nearest City | Altoona (19 km) |
| Urban exposure index (PEI) | 87.5K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-07-05T21:40:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Severe Thunderstorm Warning_noaa_urn:oid:2.49.0.1.840.0.da53123e49f85c91a571cad0e1851412 |
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: 2026-07-05T21:40:00.000Z.
First archived: 2026-07-05T21:42:02.147Z. 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 | Indiana, PA; Juniata, PA; Mifflin, PA |
| Headline | Severe Thunderstorm Warning issued July 5 at 5:40PM EDT until July 5 at 6:00PM EDT by NWS Pittsburgh PA |
| Expires | 2026-07-05T18:00:00-04:00 |
| SenderName | NWS Pittsburgh PA |
| HasExactCoords | true |
| MergedCount | 2 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.da53123e49f85c91a571cad0e185141275b32803.001.1","noaa_urn:oid:2.49.0.1.840.0.177314e4450834963bedbd944ed61df957dbb277.001.1"] |
| Iem TypeSummary | F |
| Iem City | 1 ENE Tyrone |
| Iem County | Blair |
| Iem State | PA |
| Iem Wfo | CTP |
| Iem Remark | Water up to the bottom of the first floor of the paper mill and Pennsylvania Ave completely underwater. |
| MergedSources | [{"id":"iem_F_40.680_-78.240_1783279800000","source":"iem","severity":"low","severityValue":25,"timestamp":1783279800000,"latitude":40.68,"longitude":-78.24},{"id":"iem_F_40.680_-78.240_1783279980000","source":"iem","severity":"low","severityValue":25,"timestamp":1783279980000,"latitude":40.68,"longitude":-78.24},{"id":"iem_F_40.680_-78.240_1783279680000","source":"iem","severity":"low","severityValue":25,"timestamp":1783279680000,"latitude":40.68,"longitude":-78.24},{"id":"iem_F_40.680_-78.230_1783280400000","source":"iem","severity":"low","severityValue":25,"timestamp":1783280400000,"latitude":40.68,"longitude":-78.23}] |
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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