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 6 July 2026 at 03:15 UTC. It is kept here as a record.
It is the 4th strongest of the 361 detections recorded within 20 km of this point since 12 March 2026. The last comparable one was on 5 July 2026. 3 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued July 5 at 10:52PM EDT until July 5 at 11:15PM EDT by NWS Mount Holly NJ
Urban PEI: 3,036,320 within a heuristic 50 km radius; not unique people.
Nearby, since 12 March 2026
- July 6, 2026 · score 52 · 0.0 km
- March 17, 2026 · score 52 · 3.0 km
- August 5, 2026 · score 46 · 5.4 km
How we know
4 recorded sources include NOAA; independence is not established by this count.
Our own score for this event is 52 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) | 52 / 100 |
| Legacy data-support index | 0.90/1 |
| Coordinates | 39.7500, -75.5271 |
| Nearest City | Wilmington (2 km) |
| Urban exposure index (PEI) | 3.0M within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-07-06T02:52:00.000Z |
| Source | https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.e46aa43d5b215e9f0cc6ec5c3f97646971eaca81.002.1 |
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: 2026-07-06T02:52:00.000Z.
First archived: 2026-07-06T03:10:10.678Z. 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 | Kent, DE; New Castle, DE; Cumberland, NJ; Gloucester, NJ; Salem, NJ; Chester, PA; Delaware, PA; Montgomery, PA |
| Headline | Severe Thunderstorm Warning issued July 5 at 10:52PM EDT until July 5 at 11:15PM EDT by NWS Mount Holly NJ |
| Expires | 2026-07-05T23:15:00-04:00 |
| SenderName | NWS Mount Holly NJ |
| HasExactCoords | true |
| Iem TypeSummary | H |
| Iem Magnitude | 0.75 |
| Iem Unit | Inch |
| Iem City | 1 N Perryville |
| Iem County | Cecil |
| Iem State | MD |
| Iem Wfo | LWX |
| Iem Remark | Report from mPING: Dime (0.75 in.). |
| MergedSources | [{"id":"iem_D_39.520_-76.160_1783301340000","source":"iem","severity":"low","severityValue":25,"timestamp":1783301340000,"latitude":39.52,"longitude":-76.16},{"id":"iem_F_40.030_-76.320_1783301100000","source":"iem","severity":"low","severityValue":25,"timestamp":1783301100000,"latitude":40.03,"longitude":-76.32},{"id":"iem_H_39.570_-76.070_1783303620000","source":"iem","severity":"low","severityValue":25,"timestamp":1783303620000,"latitude":39.57,"longitude":-76.07}] |
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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