Right now
The most recent data we hold from NOAA arrived 19 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 4 July 2026 at 03:45 UTC. It is kept here as a record.
No stronger detection stands among the 31 recorded within 20 km of this point since 17 March 2026 — 2 others scored the same. The last comparable one was on 25 June 2026. 2 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued July 3 at 10:42PM EDT until July 3 at 11:45PM EDT by NWS State College PA
Urban PEI: 42,161 within a heuristic 50 km radius; not unique people.
Nearby, since 17 March 2026
- September 3, 2026 · score 32 · 21.9 km
How we know
17 recorded sources include NOAA; independence is not established by this count.
Our own score for this event is 34 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) | 34 / 100 |
| Legacy data-support index | 0.90/1 |
| Coordinates | 40.8680, -77.5020 |
| Nearest City | State College (31 km) |
| Urban exposure index (PEI) | 42.2K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-07-04T02:42:00.000Z |
| Source | https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.13a014a8a6ef05f58231f96f74783155cf2cafd4.001.1 |
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: 2026-07-04T02:42:00.000Z.
First archived: 2026-07-04T03:33:36.899Z. 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 | Centre, PA; Mifflin, PA; Snyder, PA; Union, PA |
| Headline | Severe Thunderstorm Warning issued July 3 at 10:42PM EDT until July 3 at 11:45PM EDT by NWS State College PA |
| Expires | 2026-07-03T23:45:00-04:00 |
| SenderName | NWS State College PA |
| HasExactCoords | true |
| Iem TypeSummary | D |
| Iem City | 3 SE Unionville |
| Iem County | Centre |
| Iem State | PA |
| Iem Wfo | CTP |
| Iem Remark | Trees down on Buffalo Run Rd at Lower Gyp Rd. |
| MergedSources | [{"id":"iem_D_41.350_-76.910_1783112400000","source":"iem","severity":"low","severityValue":25,"timestamp":1783112400000,"latitude":41.35,"longitude":-76.91},{"id":"iem_D_40.980_-78.150_1783131300000","source":"iem","severity":"low","severityValue":25,"timestamp":1783131300000,"latitude":40.98,"longitude":-78.15},{"id":"iem_D_41.240_-77.060_1783112400000","source":"iem","severity":"low","severityValue":25,"timestamp":1783112400000,"latitude":41.24,"longitude":-77.06},{"id":"iem_D_41.100_-78.160_1783131000000","source":"iem","severity":"low","severityValue":25,"timestamp":1783131000000,"latitude":41.1,"longitude":-78.16},{"id":"iem_D_41.250_-76.970_1783112400000","source":"iem","severity":"low","severityValue":25,"timestamp":1783112400000,"latitude":41.25,"longitude":-76.97},{"id":"iem_D_40.900_-77.780_1783132620000","source":"iem","severity":"low","severityValue":25,"timestamp":1783132620000,"latitude":40.9,"longitude":-77.78},{"id":"iem_D_40.970_-77.840_1783132320000","source":"iem","severity":"low","severityValue":25,"timestamp":1783132320000,"latitude":40.97,"longitude":-77.84},{"id":"iem_D_40.880_-77.770_1783132620000","source":"iem","severity":"low","severityValue":25,"timestamp":1783132620000,"latitude":40.88,"longitude":-77.77},{"id":"iem_D_41.270_-77.170_1783112040000","source":"iem","severity":"low","severityValue":25,"timestamp":1783112040000,"latitude":41.27,"longitude":-77.17},{"id":"iem_D_40.890_-78.240_1783132680000","source":"iem","severity":"low","severityValue":25,"timestamp":1783132680000,"latitude":40.89,"longitude":-78.24},{"id":"iem_D_41.170_-76.870_1783113180000","source":"iem","severity":"low","severityValue":25,"timestamp":1783113180000,"latitude":41.17,"longitude":-76.87},{"id":"iem_D_41.230_-77.140_1783112280000","source":"iem","severity":"low","severityValue":25,"timestamp":1783112280000,"latitude":41.23,"longitude":-77.14},{"id":"iem_D_41.220_-77.040_1783112520000","source":"iem","severity":"low","severityValue":25,"timestamp":1783112520000,"latitude":41.22,"longitude":-77.04},{"id":"iem_D_40.980_-78.200_1783130700000","source":"iem","severity":"low","severityValue":25,"timestamp":1783130700000,"latitude":40.98,"longitude":-78.2},{"id":"iem_D_40.910_-77.880_1783132200000","source":"iem","severity":"low","severityValue":25,"timestamp":1783132200000,"latitude":40.91,"longitude":-77.88},{"id":"iem_D_40.880_-77.840_1783132800000","source":"iem","severity":"low","severityValue":25,"timestamp":1783132800000,"latitude":40.88,"longitude":-77.84}] |
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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