This alert expired on 4 July 2026 at 03:00 UTC. It is kept here as a record.
It is the 17th strongest of the 57 detections recorded within 20 km of this point since 17 March 2026. Another comparable one was recorded here earlier the same day. 5 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued July 3 at 10:27PM EDT until July 3 at 11:00PM EDT by NWS State College PA
Nearby, since 17 March 2026
- June 14, 2026 · score 46 · 14.9 km
- June 14, 2026 · score 46 · 16.7 km
- July 18, 2026 · score 46 · 17.4 km
How we know
Confirmed by 12 independent sources, including NOAA.
Our own score for this event is 22 out of 100, at 70 % confidence.
The score is ours, computed from intensity, exposed population and local history — not the source’s.
Event Data
| Type | Severe weather |
| Severity | medium |
| Calamity Score (ours) | 22 / 100 |
| Our confidence | 70% |
| Coordinates | 41.1320, -78.9369 |
| Nearest City | Altoona (82 km) |
| Impact Tier | minor |
| Timestamp | 2026-07-04T02:27:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Severe Thunderstorm Warning_noaa_urn:oid:2.49.0.1.840.0.8cb5c71edb1ff585541fe79ee36d5d6d |
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Blair, PA; Centre, PA; Huntingdon, PA; Butler, PA; Lawrence, PA; Mercer, PA; Clearfield, PA; Elk, PA |
| Headline | Severe Thunderstorm Warning issued July 3 at 10:27PM EDT until July 3 at 11:00PM EDT by NWS State College PA |
| Expires | 2026-07-03T23:00:00-04:00 |
| SenderName | NWS State College PA |
| HasExactCoords | true |
| MergedCount | 3 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.8cb5c71edb1ff585541fe79ee36d5d6dff1f51ca.002.1","noaa_urn:oid:2.49.0.1.840.0.2d0e709f4aa6e36e73cccab9a25fa71eff3b103a.002.1","noaa_urn:oid:2.49.0.1.840.0.732e7848f3a0906edb3b6f91efeb6350681277ed.001.1"] |
| Iem TypeSummary | D |
| Iem City | 2 WSW Bradys Bend |
| Iem County | Armstrong |
| Iem State | PA |
| Iem Wfo | PBZ |
| Iem Remark | Tree down on 68. Time based on radar estimate. |
| MergedSources | [{"id":"iem_D_40.970_-79.090_1783127640000","source":"iem","severity":"low","severityValue":25,"timestamp":1783127640000,"latitude":40.97,"longitude":-79.09},{"id":"iem_D_40.850_-78.720_1783128600000","source":"iem","severity":"low","severityValue":25,"timestamp":1783128600000,"latitude":40.85,"longitude":-78.72},{"id":"iem_D_41.120_-79.720_1783124460000","source":"iem","severity":"low","severityValue":25,"timestamp":1783124460000,"latitude":41.12,"longitude":-79.72},{"id":"iem_D_41.280_-79.590_1783125480000","source":"iem","severity":"low","severityValue":25,"timestamp":1783125480000,"latitude":41.28,"longitude":-79.59},{"id":"iem_D_40.950_-79.670_1783125600000","source":"iem","severity":"low","severityValue":25,"timestamp":1783125600000,"latitude":40.95,"longitude":-79.67},{"id":"iem_D_41.280_-79.460_1783124160000","source":"iem","severity":"low","severityValue":25,"timestamp":1783124160000,"latitude":41.28,"longitude":-79.46},{"id":"iem_D_41.030_-78.460_1783129500000","source":"iem","severity":"low","severityValue":25,"timestamp":1783129500000,"latitude":41.03,"longitude":-78.46},{"id":"iem_D_41.160_-78.720_1783129200000","source":"iem","severity":"low","severityValue":25,"timestamp":1783129200000,"latitude":41.16,"longitude":-78.72},{"id":"iem_D_41.120_-79.200_1783125780000","source":"iem","severity":"low","severityValue":25,"timestamp":1783125780000,"latitude":41.12,"longitude":-79.2},{"id":"iem_D_41.250_-79.640_1783124820000","source":"iem","severity":"low","severityValue":25,"timestamp":1783124820000,"latitude":41.25,"longitude":-79.64},{"id":"iem_D_40.980_-79.660_1783125480000","source":"iem","severity":"low","severityValue":25,"timestamp":1783125480000,"latitude":40.98,"longitude":-79.66}] |
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 10 February 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.
Calamity.live data shows a weather event with CalamityScore 22/100 (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 188 scientific monitoring sources.