Right now
The most recent data we hold from NOAA arrived 54 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 21:45 UTC. It is kept here as a record.
It is the 3rd strongest of the 17 detections recorded within 20 km of this point since 17 March 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: Severe Thunderstorm Warning issued July 3 at 4:47PM EDT until July 3 at 5:45PM EDT by NWS State College PA
Urban PEI: 56,256 within a heuristic 50 km radius; not unique people.
Nearby, since 17 March 2026
- May 13, 2026 · score 39 · 7.1 km
- July 3, 2026 · score 43 · 11.2 km
- July 21, 2026 · score 39 · 15.5 km
How we know
2 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 | 0.82/1 |
| Coordinates | 41.9669, -76.5987 |
| Nearest City | Elmira (22 km) |
| Urban exposure index (PEI) | 56.3K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-07-03T20:47:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Severe Thunderstorm Warning_noaa_urn:oid:2.49.0.1.840.0.3d1d84cb77162b2b21c17fc141e43d51 |
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: 2026-07-03T20:47:00.000Z.
First archived: 2026-07-03T20:48:57.004Z. 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 | Lycoming, PA; Sullivan, PA; Broome, NY; Tioga, NY; Susquehanna, PA; Monroe, NY; Wayne, NY and 4 more areas |
| Headline | Severe Thunderstorm Warning issued July 3 at 4:47PM EDT until July 3 at 5:45PM EDT by NWS State College PA |
| Expires | 2026-07-03T17:45:00-04:00 |
| SenderName | NWS State College PA |
| HasExactCoords | true |
| MergedCount | 8 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.3d1d84cb77162b2b21c17fc141e43d5117e83433.001.1","noaa_urn:oid:2.49.0.1.840.0.ee782f0655c3d3ed91d795fc1676562333ecdb5b.001.1","noaa_urn:oid:2.49.0.1.840.0.f5bd65a6be778e3ed74c3045cf39fb58d5c22b1d.001.1","noaa_urn:oid:2.49.0.1.840.0.98108819317018e5507bba6bc7737ffb17ee4d4b.002.1","noaa_urn:oid:2.49.0.1.840.0.53c38c3b3f7f30cecd5c469ab5ad11df04f8668f.002.1","noaa_urn:oid:2.49.0.1.840.0.34c1d239ca752aaf163cfce0662561d36689e3be.001.1","noaa_urn:oid:2.49.0.1.840.0.b3c923ef90cdd51491bf28b8cf561b99546881a4.001.1","noaa_urn:oid:2.49.0.1.840.0.beabf742edb6e2c5069e88b2b5584242fb0e4b14.001.1"] |
| Iem TypeSummary | D |
| Iem City | 1 SW Covington |
| Iem County | Tioga |
| Iem State | PA |
| Iem Wfo | CTP |
| Iem Remark | Trees and wires down across North Williamson Road in Covington township. |
| MergedSources | [{"id":"iem_D_41.730_-77.080_1783108680000","source":"iem","severity":"low","severityValue":25,"timestamp":1783108680000,"latitude":41.73,"longitude":-77.08}] |
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.
Want to know when something happens near Elmira?